Bob Bickerton
active member
Joined: 20/12/02
Posts: 2549
Loc: Nelson, New Zealand
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Re: Preamp comparison in SOS October 2012: your views!
[Re: mjfe2]
#1010105 - 25/09/12 08:59 PM
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Quote mjfe2:
So when are SOS
going to do an A/D converter shootout?!
Ah, no, let's go for a room shoot
out!
Actually, I'm serious! There's always lots of talk about how important
room acoustics are.
Would it be of use to create an article which demonstrates
this? Perhaps a series of recordings of one source in a variety of rooms, miked the same
way, or even miked at different distances to show how the room has more effect. Maybe
start with an untreated room and record differences as the room gets incrementally treated
(no doubt a supplier of acoustic treatment would sponsor this and I'm sure there would be
a willing guinea pig who would like their room treated).
Some of my favourite
recordings have been close miked in large beautiful acoustics, not something that can be
done at home, and different to dry studio plus reverb.
I don't have time to
review the samples, but this is an interesting read and confirms something I long
suspected.
Bob
-------------------- www.bickerton.co.nz
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The Elf
active member
Joined: 14/08/01
Posts: 8216
Loc: Sheffield, UK
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Re: Preamp comparison in SOS October 2012: your views!
[Re: Sam Inglis]
#1010110 - 25/09/12 09:20 PM
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As a Focusrite Liquid Channel owner I'm well used to the joy of comparing subtleties
between pre-amp emulations - but I actually have to come up with a permanent recording
decision when I go through the process!
I'm going to hold my hand up and say
that I expected the differences to be much greater, given the wide spread of pre's in the
test (and the difference between my LC's emulations are typically less subtle!). And I'm
going to also say that there are some examples here that I prefer to the others, but I
doubt it has much to do with cost. If was hearing a vocalist, as opposed to a piano,
through the same range of pre's I'd likely come up with a different favourite.
So as far as giving the lie to those who verbally trash one perfectly decent pre over
another I'd say job done, SOS! It doesn't mean I wouldn't prefer one over another on any
given day, but the choice would be based on:
a) what I hear in that
particular situation on that day
b) whether one pre offers me something over another
(e.g. the SSL's VHD control, for instance)
Sometimes my choice would be based
on noise levels, or available gain. Not many pre's have the ultra-low noise-floor of my
SSL Superanalogue Channels, and this may be important for a harp, or an acoustic guitar,
but for some signals I care less about low-noise and more about character. Some may turn
their noses up at my TLA EQ's mic pre's, but I get some very good close-mic'd drums sounds
through them that arrive all the better for having hit a valve or two on the way.
Anyway, to the test...
Brauner:
I liked G/H for their smooth
character, E for its warm lows and C for its detail. If I had to choose a favourite it
would be E.
MKH:
I liked F for it's overall balance of lows/highs and G
for its detail. B seemed to have more depth and ambience. On this day I'd choose F for the
cut.
Royer:
(Lordy, I want one of these mic's!)
D had a richness
I liked. H had warmer lows. C seemed to capture a delicacy I liked. A, F and G had a
slight 'edge' that, although I wouldn't notice in isolation, in comparison with the others
here I found less appealing. Today I'd choose C.
Fascinating exercise - let's
do more of these!
-------------------- An Eagle for an Emperor, A Kestrel for a Knave.
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The Elf
active member
Joined: 14/08/01
Posts: 8216
Loc: Sheffield, UK
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Re: Preamp comparison in SOS October 2012: your views!
[Re: Bob Bickerton]
#1010111 - 25/09/12 09:21 PM
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Quote Bob Bickerton:
Would it be
of use to create an article which demonstrates this? Perhaps a series of recordings of one
source in a variety of rooms, miked the same way, or even miked at different distances to
show how the room has more effect. Maybe start with an untreated room and record
differences as the room gets incrementally treated (no doubt a supplier of acoustic
treatment would sponsor this and I'm sure there would be a willing guinea pig who would
like their room treated).
I'm
prepared to selflessly volunteer my room!
-------------------- An Eagle for an Emperor, A Kestrel for a Knave.
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fHumble fHingaz
Joined: 30/09/08
Posts: 119
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Re: Preamp comparison in SOS October 2012: your views!
[Re: Bob Bickerton]
#1010132 - 26/09/12 12:23 AM
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Quote:
Ah, no, let's go for a
room shoot out!
Fantastic
idea!
At least that would be a clear (probably quite dramatic)
demonstration...
Then we could point people to it when they show up on a forum
& ask "I've got all this money burning a hole in my pocket, what should I spend it on
first?", before they get caught in the frustrating vortex of misinformation &
pointless expense.
-------------------- http://soundcloud.com/coldroom-studio
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skatebird
Joined: 30/08/11
Posts: 2
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Re: Preamp comparison in SOS October 2012: your views!
[Re: Sam Inglis]
#1010142 - 26/09/12 07:15 AM
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Thanks for a really good and well executed test! I love this kind of stuff. I
also found the differences between preamps really small. I would recommend using a ABX
software (like http://emptymusic.com/software/ABXer.html) for testing if you really
can tell two preamps apart. I couldn't
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Mike Stranks
active member
Joined: 03/01/03
Posts: 3113
Loc: Oxford, UK
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Re: Preamp comparison in SOS October 2012: your views!
[Re: Sam Inglis]
#1010153 - 26/09/12 08:45 AM
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Another vote here for a room shoot-out... we even have a volunteer - thanks Elf.
It's clear from posts here that people are often debating replacing monitors or
other gear when they're working in untreated rooms.
[I know there's a whole
sub-discussion about multi-purpose rooms, but that needn't be the "can't do it" argument
that's sometimes raised. I won't take that any further here!]
I worked for far
too long in untreated rooms until circumstances dictated that I had to do something. Even
the modest treatment I've used has been a revelation...
So, yes... as near as
possible record and mix identical pieces with identical instruments, amps mics, monitors
etc in a good room and an untreated one. Sales of Rockwool and pre-assembled panels will
rocket!
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Hugh Robjohns
SOS Technical Editor
Joined: 25/07/03
Posts: 18540
Loc: Worcestershire
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Re: Preamp comparison in SOS October 2012: your views!
[Re: Mike Stranks]
#1010161 - 26/09/12 09:04 AM
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Quote Mike Stranks:
Even the
modest treatment I've used has been a revelation...
And that's what we have found time and time again with the Studio
SOS features. What we generally do in most of those is incredibly simple and inexpensive,
and usually only involves the absolutely most basic treatment of early reflections. Yet
without fail everyone has been able to hear significant improvements in clarity,
definition and stereo imaging. Most volunteer the opinion that it's like they've just got
new, much more expensive monitors becuase they can now hear so muich more of what the
monitors have been trying to tell them all along!
Sorting out troublesome bass
modes can be difficult and costly, and that's where a good acoustician comes in. But
dealing with early reflections that destroy midrange clarity and imaging is trivially
simple to do and, as you say Mike, it can be a revelation.
hugh
-------------------- Technical Editor, Sound On Sound
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thefruitfarmer
Joined: 01/09/04
Posts: 1672
Loc: Kent UK
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Re: Preamp comparison in SOS October 2012: your views!
[Re: Hugh Robjohns]
#1010196 - 26/09/12 10:49 AM
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Quote Hugh Robjohns:
Sorting out troublesome bass modes can be difficult and costly, and that's where a good
acoustician comes in.
Not necessarily.
I was happy with the treatment of my 8'6" cube room,
with lots of RW5.
I do not doubt that someone experienced would have treated
the room in less time and perhaps made the trapping more efficient.
However,
how much would they want to do this?
and yeah....
The difference
between a treated and untreated room makes the perceived differences in preamp appear very
small indeed, also moving the mic makes more difference than using a different pre amp.
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Nolum
Joined: 24/02/10
Posts: 46
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Re: Preamp comparison in SOS October 2012: your views!
[Re: Sam Inglis]
#1010244 - 26/09/12 03:24 PM
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So, regarding the preamp shootout, what is the takeaway here? In light of many people
(myself included) hearing very little difference, how does one go about buying a preamp?
Or choosing a particular preamp for a particular source? Is there justification for
spending 4 digits for a single channel? Are there really things to be considered beyond
quality of parts and construction, as well technical specs (self-noise, etc)?
I
feel like my world has been flipped upside down.
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Hugh Robjohns
SOS Technical Editor
Joined: 25/07/03
Posts: 18540
Loc: Worcestershire
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Re: Preamp comparison in SOS October 2012: your views!
[Re: Nolum]
#1010265 - 26/09/12 05:24 PM
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Quote Nolum:
So, regarding the
preamp shootout, what is the takeaway here?
I think the take-away is that there really isn't as much
difference as many people think between the sound character of decent preamp designs --
provided that they are used within their designed limits (ie, not overdriven).
And what that means is that for general recording duties, where the gain structure is
optimised so that the signal isn't pushing the headroom margins, it really doesn't make a
lot of difference which preamp you use. I'm not saying there isn't a difference, because
there is... but changing the mic or repositioning the mic will result in a much more
significant change of character.
I certainly wouldn't hold off recording my
drum solo until I could afford an API...
Quote:
In light of many people
(myself included) hearing very little difference, how does one go about buying a
preamp?
Buy something that
is as well designed and well built as your budget can afford, with the facilities you
require. There are plenty to choose from. But above all, buy what you need, not what an
internet forum says you absolutely must have for any given source!
Quote:
Or choosing a
particular preamp for a particular source?
This isn't something I've ever subscribed to, so I can't
help... I will admit that Ido sometimes choose to use transformer-coupled preamps on
sources where I want a slightly softer, thicker sound (depending on what the mic is giving
me). But in practice I am quite happy to use whatever preamp comes to hand, and
concentrate on positioning the mic to get the sound I want. Of course, I tend to record
classical acoustic sources with lots of headroom specifically to avoid overdriving the
preamp -- for me it's all about transparency, not colour.
Quote:
Is there justification
for spending 4 digits for a single channel?
Gear lust means that if you want something, you'll find a way
of justifying it whatever the cost! But personally, I'd struggle to justify spending four
figures for a single channel... Some have tempted me -- like the Grace M201 -- but I
restrained myself! The Grace
Design 201 is a beuatifully constructed preamp that has superb engineering inside and out,
sounds fabulous and and is a joyous thing to use... but I'm quite happy with my ISA428,
GML8304, SSL Xlogic VHD, and SADiE slither preamps which all get the job done very nicely
thank you! I have also made very high quality recordings using the preamps in a Mackie
1402VLZ mixer, a little Sound Devices two channel battery-powered mic pre, and a Yamaha
DM1000 mixer...
Quote:
Are there really things to be considered beyond quality of parts and
construction, as well technical specs (self-noise, etc)?
It's really all about the design --
electronic and ergonomic -- the quality of the components and construction, the
facilities, and the tech specs, of course -- and then how it interfaces with your mics.
Ribbons and dynamics generally like much higher input impedances, for example. But if you
are into running things hot for effect, then you really have to listen to how the preamp
reacts becuase that's wehen the really obvious differences start to appear.
Hugh
-------------------- Technical Editor, Sound On Sound
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Exalted Wombat
Joined: 06/02/10
Posts: 4320
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Re: Preamp comparison in SOS October 2012: your views!
[Re: Hugh Robjohns]
#1010275 - 26/09/12 06:17 PM
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Quote Hugh Robjohns:
The Grace
Design 201 is a beuatifully constructed preamp that has superb engineering inside and out,
sounds fabulous and and is a joyous thing to use... but I'm quite happy with my ISA428,
GML8304, SSL Xlogic VHD, and SADiE slither preamps which all get the job done very nicely
thank you! I have also made very high quality recordings using the preamps in a Mackie
1402VLZ mixer, a little Sound Devices two channel battery-powered mic pre, and a Yamaha
DM1000 mixer...
Do I
still detect a trace of denial? :-)
"Sounds fabulous"? More fabulous than the
work-a-day preamps you mentioned? You mean there IS a noticable difference...?
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_ Six _
Joined: 03/06/06
Posts: 1409
Loc: Liverpool
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Re: Preamp comparison in SOS October 2012: your views!
[Re: Sam Inglis]
#1010276 - 26/09/12 06:24 PM
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Cue lots of ebay auctions for no longer needed expensive pre amps. I've got my
wonga ready!
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Mattyy
Joined: 11/08/10
Posts: 76
Loc: Toronto, Canada
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Re: Preamp comparison in SOS October 2012: your views!
[Re: Sam Inglis]
#1010277 - 26/09/12 06:25 PM
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Alright - in the spirit of the "game": Royer: I liked D and G with the D seeming to
have more detail and the G being a little clearer. Sennheisers: I liked D, it seemed
to be a bit more natural than the rest for me. Brauners: I liked E and H with E
seeming to have more depth/evenness and H having just a little more clarity or
separation.
To be honest, I didn't like the Brauners on this instrument. The
sound seemed slightly muffled to me. Bear in mind that I am listening to these samples
under less than perfect conditions to say the least. I almost want for you to tell me
that there is no difference in the preamps and that this was all a hoax to "egg all of our
faces" because, as a less than professional, I had a hard time distinguishing all of the
samples but it was fun and if I find out that there was any consistency in my answers then
I'll definitely audition my preferred preamp! Thanks again and PLEASE keep these
coming!!! Audio fidelity is pretty much the only thing that matters to me when making
these decisions. Cheers.
-------------------- Just a fan of music...
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RhinoTime
Joined: 01/04/08
Posts: 455
Loc: West Sussex UK
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Re: Preamp comparison in SOS October 2012: your views!
[Re: Sam Inglis]
#1010281 - 26/09/12 07:05 PM
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One small doubt I have about this comparison is that I suspect that the VLZ pre-amps may
not be entirely typical of the 'budget mixer' genre. I'd suggest that they are an
unusually good preamp in that category.
So it could be a little misleading to
go from this test to wider generalisation that budget mixer preamps are all at this
level?
Having said that I applaud the test and the thought and work that has
gone into it. I'm still trying to find time to listen carefully to all of the samples
though...
-------------------- I've never liked a solo violin, you need at least five for a proper fire.
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Sam Inglis
SOS Features Editor
Joined: 15/12/00
Posts: 1395
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Re: Preamp comparison in SOS October 2012: your views!
[Re: Nolum]
#1010282 - 26/09/12 07:09 PM
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Quote Nolum:
So, regarding the
preamp shootout, what is the takeaway here? In light of many people (myself included)
hearing very little difference, how does one go about buying a preamp?
For me personally, I think that what this
comparison has demonstrated is that you can take a decent level of sound quality almost
for granted in modern gear, which means that I would tend to choose more on the strength
of what features are offered. For example, to me, having stepped or digital gain controls
is a massive plus, especially for stereo recording. I don't want the hassle and
frustration of trying to match gains across two channels using Mackie trim pots unless I
have to! And again, for my own use a decent amount of clean gain for ribbon mics is high
on the list.
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Hugh Robjohns
SOS Technical Editor
Joined: 25/07/03
Posts: 18540
Loc: Worcestershire
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Re: Preamp comparison in SOS October 2012: your views!
[Re: Exalted Wombat]
#1010283 - 26/09/12 07:18 PM
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Quote Exalted Wombat:
Do I still
detect a trace of denial? :-)
Quite possibly! I've never denied that there are differences... I just don't think the
differences are as significant as many would have us believe. And this SOS comparison
would seem to confirm that.
Quote:
"Sounds fabulous"? More fabulous than the work-a-day preamps you
mentioned? You mean there IS a noticable difference...?
I think I said the M201 sounded sublime with
a clean and neutral sound -- and I'd stand by that. other preamps are sublimely clean and
neutral too -- I have several... I also said it had a huge headroom and that is where high
end preamps often stand apart from the less costly wannabes.
The thing with the
Grace though, is that you really feel you know where the mopney has ben spent. It feels as
good to use as it sounds. If you appreciate good engineering, it's all there in the Grace
Design m201...but at a cost. If I had oodles of money then I'd love to own a rack of Grace
preamps... but I can get the same quality of sound with lots of others that are less
expensive, and perhaps not quite as rewarding to use at a tactile level.
hugh
-------------------- Technical Editor, Sound On Sound
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Hugh Robjohns
SOS Technical Editor
Joined: 25/07/03
Posts: 18540
Loc: Worcestershire
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Re: Preamp comparison in SOS October 2012: your views!
[Re: RhinoTime]
#1010287 - 26/09/12 07:24 PM
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Quote RhinoTime:
I suspect that
the VLZ pre-amps may not be entirely typical of the 'budget mixer' genre. I'd suggest that
they are an unusually good preamp in that category.
The second generation VLZ-pro preamps were certainly ahead of the
game for budget consoles when they were first introduced a good few years ago, but I think
many of the other reputable budget consoles have more or less caught up now. Most budget
mixer preamps are surprisingly good these days, and we would have killed for that level of
performance 30 years ago, where even fully professional consoles often sounded pretty grim
in comparison! It's often the rest of the budget mixer circuitry that lets the side down,
with limited headroom and other issues.
hugh
-------------------- Technical Editor, Sound On Sound
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Folderol
Joined: 15/11/08
Posts: 2599
Loc: Rochester, UK
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Re: Preamp comparison in SOS October 2012: your views!
[Re: Sam Inglis]
#1010308 - 26/09/12 08:28 PM
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Hmmm. Talking about room shootouts. I have one that would challenge a saint. 3M
x 4M Bay window on the 3M Chimney breast on the 4M Glass window opposite
the bay (going to adjacent room) Plasterboard paneling opposite the chimney breast,
with something inside that rattles  Bouncy
wooden floor (cellar underneath). I suspect that when I eventually get round to
it, I'll abandon this and use the dining room instead  That is of course after I've finished the kitchen
-------------------- It wasn't me!
(Well, actually, it probably was)
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skatebird
Joined: 30/08/11
Posts: 2
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Re: Preamp comparison in SOS October 2012: your views!
[Re: RhinoTime]
#1010310 - 26/09/12 08:36 PM
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Quote RhinoTime:
One small doubt
I have about this comparison is that I suspect that the VLZ pre-amps may not be entirely
typical of the 'budget mixer' genre. I'd suggest that they are an unusually good preamp in
that category.
I think you
are right. When I studied sound engineering way back in 1998 a classmate did some
measurements on mic preamps and found out that the VLZs had lower noise and THD than the
preamps in the school's SSL desk.
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ef37a
Joined: 29/05/06
Posts: 5669
Loc: northampton uk
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Re: Preamp comparison in SOS October 2012: your views!
[Re: Sam Inglis]
#1010313 - 26/09/12 08:45 PM
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"I think the take-away is that there really isn't as much difference as many people think
between the sound character of decent preamp designs -- provided that they are used within
their designed limits (ie, not overdriven)."
Hugh, I recall an amplifier
manufacturer saying much the same thing many years ago and even putting his money where
his mouth was!
AFAIK no one proved him wrong and collected the cash but people
are still talking bllx about superb but different power amps decades later!
I
am sure the same will obtain with mic pres. Extremely interesting and WELL worth doing tho
it was I suspect the exercise will sink into obscurity and like Darwin the naysayers will
still be there!
There is at least one advantage to buying a top range
pre..Reliability. I have never read a post in SoS or any other forum of a Grace, AD or any
other such make going wrong and I am pretty sure if people paid that sort of money and one
popped they would shout!
Dave.
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The Elf
active member
Joined: 14/08/01
Posts: 8216
Loc: Sheffield, UK
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Re: Preamp comparison in SOS October 2012: your views!
[Re: ef37a]
#1010317 - 26/09/12 09:07 PM
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Quote ef37a:
There is at least
one advantage to buying a top range pre..Reliability. I have never read a post in SoS or
any other forum of a Grace, AD or any other such make going wrong and I am pretty sure if
people paid that sort of money and one popped they would shout!
Shout! 
One of my SSL Superanalogue Channels failed twice in the space of a year. It cost me the
price of a decent pre to get it fixed the first time. The second time (and it looked like
the same fault to me) SSL were a bit sniffy about fixing it under warranty, but after a
bit of horse trading we arrived at a mutually agreeable solution.
I dont regret
getting these pre's now, but the cost and repairs have made me less likely to invest that
kind of money again.
-------------------- An Eagle for an Emperor, A Kestrel for a Knave.
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RhinoTime
Joined: 01/04/08
Posts: 455
Loc: West Sussex UK
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Re: Preamp comparison in SOS October 2012: your views!
[Re: Hugh Robjohns]
#1010322 - 26/09/12 09:25 PM
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Quote Hugh Robjohns:
but I think
many of the other reputable budget consoles have more or less caught up now.
I'd accept that, but the word
'reputable' in it is kind of what I'm driving at. For someone who comes along and
reads the comparison stuff how do they know which side of the reputable line a particular
maker/model sits on.
I'm assuming that you took the vlz signals from the
direct outs on the mixer? And that's another thing that maybe needs to be brought out, a
reputable mixer with a direct out will do better than one that forces you to use the rest
of the mixer signal chain. How much better?
-------------------- I've never liked a solo violin, you need at least five for a proper fire.
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Hugh Robjohns
SOS Technical Editor
Joined: 25/07/03
Posts: 18540
Loc: Worcestershire
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Re: Preamp comparison in SOS October 2012: your views!
[Re: RhinoTime]
#1010327 - 26/09/12 10:03 PM
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Yes, we took the Mackie output from the insert point, and routed via an ART transformers
box to balance and isolate the output.
Hugh
-------------------- Technical Editor, Sound On Sound
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ef37a
Joined: 29/05/06
Posts: 5669
Loc: northampton uk
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Re: Preamp comparison in SOS October 2012: your views!
[Re: RhinoTime]
#1010329 - 26/09/12 10:12 PM
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Quote RhinoTime:
Quote Hugh Robjohns:
but I
think many of the other reputable budget consoles have more or less caught up now.
I'd accept that, but the word
'reputable' in it is kind of what I'm driving at. For someone who comes along and
reads the comparison stuff how do they know which side of the reputable line a particular
maker/model sits on.
I'm assuming that you took the vlz signals from the
direct outs on the mixer? And that's another thing that maybe needs to be brought out, a
reputable mixer with a direct out will do better than one that forces you to use the rest
of the mixer signal chain. How much better?
That last might be food for the next test! It is recieved wisdom
that a signal chain should be as short and simple as possible. But in fact how many
NE5532's can be daisy chained before the result can be told from the original source on a
double blind A/B test. I suspect the number of stages needed would be impracticably
large.
Dave.
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Jorge
member
Joined: 13/12/03
Posts: 327
Loc: New York, NY
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Re: Preamp comparison in SOS October 2012: your views!
[Re: Sam Inglis]
#1010333 - 26/09/12 10:39 PM
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So this discussion would suggest that we can generalize these findings to a degree, and
will likely find a reasonably quiet and uncolored good quality analog mixer mic preamp
like a MixWiz or Zed to be adequate for most vocal or instrument recordings and most
recording mics. In addition this suggests that the built-in preamps in many of the better
quality audio interfaces will be fine for most of these uses as well. Would anyone take
issue with, or want to qualify, these generalizations?
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ef37a
Joined: 29/05/06
Posts: 5669
Loc: northampton uk
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Re: Preamp comparison in SOS October 2012: your views!
[Re: Jorge]
#1010336 - 26/09/12 11:14 PM
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Quote Jorge:
So this discussion
would suggest that we can generalize these findings to a degree, and will likely find a
reasonably quiet and uncolored good quality analog mixer mic preamp like a MixWiz or Zed
to be adequate for most vocal or instrument recordings and most recording mics. In
addition this suggests that the built-in preamps in many of the better quality audio
interfaces will be fine for most of these uses as well. Would anyone take issue with, or
want to qualify, these generalizations?
Not at all Jorge! "Our" (son and I) rig for a long time was a
Behringer Xenyx 802 feeding a 2496. Using Sontronics STC-2, AKG P150s and latterly an SM57
he made recordings he was happy with of amplified and acoustic guitar. I then upgraded to
a ZED10 and that is undoubtably a better piece of kit, but! In all honesty, although the
mic pre has a wee bit more gain in hand the recordings he makes of acoustic G and with the
57 are not noticeable better in terms of noise (in fact the locale limits my noise
floor!)or any other quality we can discern. One big advantage of the 10 is the HP filter
on each channel (and yet how few "booteek" £xxxx mic pres provide these!).
Of
course my noise floor is only just adequate and then only in the wee smalls. Had I a
30dBspl studio things MIGHT be different?
Dave.
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James Perrett
Joined: 10/09/01
Posts: 9709
Loc: The wilds of Hampshire
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Re: Preamp comparison in SOS October 2012: your views!
[Re: Hugh Robjohns]
#1010372 - 27/09/12 09:23 AM
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Quote Hugh Robjohns:
Most budget
mixer preamps are surprisingly good these days, and we would have killed for that level of
performance 30 years ago, where even fully professional consoles often sounded pretty grim
in comparison!
And I wonder
if this is one of the main reasons for the mic preamp myth. Originally, the idea of using
separate mic preamps instead of the console preamps was intended to overcome the limits of
console mic preamps. I've owned a couple of consoles from the early/mid 80s where the mic
preamps were obviously noisy and coloured. I managed to produce some interesting
recordings on them but they would have been obviously improved if I had access to decent
mic preamps.
Once low noise input transistors became affordable, the quality of
preamps on affordable consoles improved dramatically and effectively removed the need for
additional preamps - but old school engineers carried on using them and the marketing
machine went into overdrive.
I can certainly understand the need for preamps
with eq built in where the eq is a big part of the sound. There are also plenty of people
nowadays who don't use a console so they will also need separate preamps. As Hugh says,
some consoles have shortcomings in later stages so some engineers will try to avoid the
console all together.
I can't help thinking that this is similar to the summing
amp myth that was hopefully debunked a little while ago.
James.
-------------------- JRP Music - Audio Mastering and Restoration.
http://www.jrpmusic.net
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The Elf
active member
Joined: 14/08/01
Posts: 8216
Loc: Sheffield, UK
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Re: Preamp comparison in SOS October 2012: your views!
[Re: James Perrett]
#1010387 - 27/09/12 11:31 AM
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Quote James Perrett:
I can't help
thinking that this is similar to the summing amp myth that was hopefully debunked a little
while ago.
Head for another forum
and you'll see that no matter how much a myth is systematically and methodically de-bunked
some people just *want* to believe and won't take any evidence as irrefutable. Even
perfect null tests are dismissed under those circumstances.
After all, it's
better to believe in wichcraft than to accept that you can't make a decent recording,
isn't it?
-------------------- An Eagle for an Emperor, A Kestrel for a Knave.
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Glenn Bucci
active member
Joined: 28/10/02
Posts: 1167
Loc: Pennsylvania
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Re: Preamp comparison in SOS October 2012: your views!
[Re: Sam Inglis]
#1010397 - 27/09/12 12:23 PM
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I have not compared newer consumer mic pre's to all discrete mic pre's in my studio in
over 5 years. However I have spoken to mic pre designers in the past about not having
cheap chips in their gear. Not only that but having higher end transformer coupled
balanced and direct humongous metalized film MultiCaps capacitor coupled unbalanced
outputs which help provide better spec's.
I WANT TO CHALLENGE EVERYONE TO
TAKE THEIR OWN TEST. I want you to record a vocalist with a condenser microphone of at
least the quality of a AT 4033. Make sure the level into your DAW in the same and the
distance between the vocalist is the same. Record with a consumer mic pre (Behringer,
Mackie, Presonus, etc.) and then borrow a higher end pre (Neve, Manley, Pendulum, Avalon,
SSL, etc) and do a A/B. Carefully listen to the lows, then mid's, and then the high's.
What ever difference you hear, just think of adding that difference to every track on a
song. After having over 20 tracks with the higher end mic pre. the difference on a entire
song will be a lot more noticeable than one track. I have done this test multiple times
in my studio, and I have always found the higher end mic pre's to deliver more information
than the consumer pre's. Granted cleaner pre's will sound different than colored pre's,
but the overall sound quality of higher end pre's with better spec's and higher end
components still does make a difference. Have consumer pre's improved over the
years.....yes. The question only you can answer is, is the difference enough to justify
the cost of the higher end pre. There is no right or wrong answer. The answer is what do
YOU think and does the cost for YOU justify the cost.
One experiment I did
was with the Focusrite Voicemaster, Mindprint DTC, Focusrite ISA 220 and the Langevin DVC
(Manley Labs). I clearly heard a difference between all these mic pre's, and the Langevin
DVC to my ears was clearly the best sounding pre. So for me, the cost of the higher end
mic pre was clearly well worth it. I personally wanted to buy the Mindprint after reading
Hugh's review, but just singing into each mic pre and playing them back clearly allowed me
to hear the difference. For your ears and taste perhaps the difference is not justified,
and that is fine. But when you learn to hear the subtle differences and again think about
multiplying the difference on every track of your song, that differences is magnified.
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Hugh Robjohns
SOS Technical Editor
Joined: 25/07/03
Posts: 18540
Loc: Worcestershire
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Re: Preamp comparison in SOS October 2012: your views!
[Re: Glenn Bucci]
#1010401 - 27/09/12 12:55 PM
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Quote Glenn Bucci:
...just think
of adding that difference to every track on a song.
...except that it won't be the same difference will it? And it
probably won't be anything like as many as twenty tracks either -- at least not for most
home musicians.
The use of different mics with the same preamp will alter the
tonal signature of the combination quite radically, and most people will use two different
mics for vocals and guitar etc, so the 'stacking' concept is already looking dubious.
And for most home recording sessions we're looking at a main vocal, possibly a
couple of backing vocals, a couple of guitar parts (acoustic/electric) and maybe some hand
percussion, but that's about it as far as live recording is concerned. Pretty much
everything else will be samples, virtual instruments or DIs. So ten tracks tops, and often
six or less.
I agree completely that the better designed preamps sound better
-- and the bottom end is a particular area where differences become more obvious -- but we
really are talking pretty stubtle improvements here. Worth having if you can afford it,
obviously, but not worth worrying about excessively because it certainly won't affect
record sales!
In days of old, long before samples and virtual instruments,
everything was recorded live, and everything went through the same console preamps. Some
sounded better than others, but the hit records still emerged quite happily, despite
excessive 'stacking'. I think the perspective has been distorted quite considerably over
the years because of changing working styles and marketing BS, and sometimes it's worth
just stepping back for a moment and re-evaluating just what is critically important and
what are 'nice to have luxuries' that quickly get lost in the noise.
hugh
-------------------- Technical Editor, Sound On Sound
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Korff
Loose Cannon (Reviews Editor)
Joined: 20/10/06
Posts: 1996
Loc: The Wrong Precinct
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Re: Preamp comparison in SOS October 2012: your views!
[Re: Hugh Robjohns]
#1010406 - 27/09/12 01:13 PM
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Totes +1.
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Glenn Bucci
active member
Joined: 28/10/02
Posts: 1167
Loc: Pennsylvania
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Re: Preamp comparison in SOS October 2012: your views!
[Re: Hugh Robjohns]
#1010408 - 27/09/12 01:14 PM
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Quote Hugh Robjohns:
Quote Glenn Bucci:
...just
think of adding that difference to every track on a song.
In days of old, long before samples and
virtual instruments, everything was recorded live, and everything went through the same
console preamps. Some sounded better than others, but the hit records still emerged quite
happily, despite excessive 'stacking'. hugh
Us home engineers have to remember, its all about the song and
the performance. Even poorly recorded Jango Reinhardt, and Robert Johnson recordings are
still loved by many today. No one says, oh how I wish he had a U47 through a Neve mic pre.
They just love the music.
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Sam Inglis
SOS Features Editor
Joined: 15/12/00
Posts: 1395
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Re: Preamp comparison in SOS October 2012: your views!
[Re: Glenn Bucci]
#1010416 - 27/09/12 01:53 PM
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Quote Glenn Bucci:
I WANT TO
CHALLENGE EVERYONE TO TAKE THEIR OWN TEST. I want you to record a vocalist with a
condenser microphone of at least the quality of a AT 4033. Make sure the level into your
DAW in the same and the distance between the vocalist is the same. Record with a consumer
mic pre (Behringer, Mackie, Presonus, etc.) and then borrow a higher end pre (Neve,
Manley, Pendulum, Avalon, SSL, etc) and do a A/B.
Yes... but be sure to accurately match the levels, and use an ABX
program as was suggested by a previous poster, so that you are doing the tests blind.
Because what our experiences in doing these tests show is that the effect of bias (the
psychological expectation that something will sound a certain way because of the name on
the box) is much greater than we had expected.
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markc2
Joined: 27/09/12
Posts: 1
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Re: Preamp comparison in SOS October 2012: your views!
[Re: Sam Inglis]
#1010419 - 27/09/12 02:16 PM
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Wow this is really very cool, thank you. I would like to put in my vote for
Royer_A, the depth of the harmonics and physicality of that recording are beautiful, it's
not as super clean on the top as the Brauner-A recording but the richness makes up for it.
I've played piano since I was a kid, and know nothing of the recording
industry except I got to be in a recording studio for a day being recorded as part of a
band. I am one of the nuts that likes to buy home audio (mcintosh/dynaco/quad) and we get
into arguments all day long about "no this sounded more organic, can't you hear the door
closing backstage during the 2nd movement of this concerto?"  I do realize that I will never know what it truly sounded like because I wasn't in the
room when it happened, I have to trust people in your field to do an excellent job and
transport me to that moment. Thanks Mark
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Heinrich
new member
Joined: 20/12/02
Posts: 1
Loc: England
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Re: Preamp comparison in SOS October 2012: your views!
[Re: Sam Inglis]
#1010461 - 27/09/12 07:15 PM
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Always intrigued by these evaluations, have done my own modest tests previously and
concluded I could tell no difference between different preamps I had to hand (when run
clean) - but with the level matching and the personal blindfolding being crucial! Even
tiny differences in level would draw me to prefer the louder, and I wondered if I was
suffering from that a little here with the first couple listened to under the Brauner set,
where I thought Brauner_A was slightly blurry and indistinct compared to the next listened
to (Brauner_B...) it also had less distortion around the 0:50 mark which doesn't
necessarily mean anything about it's level but made me experiment with edging the level up
a tiny amount with Brauner_A only, at which point (after going through all the other
Brauners it went from -marginally- the one I would NOT choose to the one that seemed the
most solid. Anyone else find this? Even A:B-ing in pairs at a time you get
continuity confusion and fatigue going through permutations (well I certainly do  and it
seems amazingly easy - even without expectation bias - to convince yourself of a pattern
that does not appear to be there an hour later (maybe after listening through a different
set of the samples). It also varied between sections of the music - A:Bing
different sections produced different results. I also thought I was maybe being unfair
where I felt the top end seemed slightly more prominent - maybe actually these were more
detailed and I was imagining the fragility of the rest of the sound... arf Anyway, happily, I couldn't reliably agree with myself on anything although having a
stinking cold with bunged up glooping tubes is perhaps not helping, nor my Bronze Ears
battered by age and years of loud music... but in the spirit of a game of minesweeper
I'll offer a couple of shots just for fun and in full expectation of imminent destruction:
Brauner Set: (More 'stereo' detail but less naturalistic) - B and E
seemed (sometimes!) more brittle/less solid so by subtraction I will say these are the
Mackie and ART MPAII though maybe not in that order. MKH: (More diffuse
stereo) - I found it harder to come to any opinions about the preamps with the MKH
set. Maybe the cold was worsening. I'll take a wild stab at C&G being the same
preamps as B&E in the Brauner set. (ie. ART + Mackie) Royer: (Didn't grab
me so much at first, though perhaps mentally saturated by that stage, but after reading
here how much everyone likes it I now also think it sounds very sweet  (no I
really do) - Here perhaps the least natural sounding seemed to be D. So, er... ...boom aargh!
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rmatichak
Joined: 03/06/11
Posts: 1
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Re: Preamp comparison in SOS October 2012: your views!
[Re: Sam Inglis]
#1010491 - 28/09/12 12:05 AM
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Alright. I'll throw my hat in the ring. I only had patience to compare the Brauner
set.
I best liked "A" then maybe "H". Least liked "B" & "C".
Can't wait for the reveal!
-------------------- Montreal, Canada
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ar316
Joined: 03/12/08
Posts: 4
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Re: Preamp comparison in SOS October 2012: your views!
[Re: Sam Inglis]
#1010496 - 28/09/12 01:11 AM
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OK, here goes. Listened with my Sony MDR-7506 headphones. I haven't read anyone else's
responses and am not familiar with these microphones. The only preamp I am familiar with
is the Mackie VLZ.
Brauner
A – Liked it. Had a bag being shuffled
around noise at downs. Keys moving? (upon listening to all the files this is
consistent.)
B – Good as well. Sounded grainy during some of the louder
portions. Bad distortion, even.
C – Favorite so far. Clean but smooth.
D – Equal in quality to C.
E – Sounds a little duller than the
rest. Not too bad though, nothing a little EQ wouldn’t fix.
F – Equal in
quality to C and D.
G – Sounds good. Not as smooth as C/D/F but good.
Transients were sharper/harsher but nothing to complain about.
H - For
whatever reason this was my favorite. A good balance of smoothness without sounding
dull.
MKH
A – On the dull side. Stereo panning is more
consistent. Distortion in the lows at 0:50 .
B – Sounds nicer than A. More
“musical” and dynamic than A.
C – Duller than B but better than A.
D – Has a rich quality to it. Similar to B.
E – Nothing
objectionable. Similar to B and D.
F – Similar to B/D/E. Perhaps slightly
duller but not bad.
G – A little sharp in the mids but good.
H –
Overall nice frequency balance. Much like B/D/E/F. Not as detailed as G but still nice.
Royer
A – Not as detailed as the previous microphones. Has a
dull quality.
B – Also sounds dull. A little brighter than A but still not
as great as the previous microphones.
C – Nicest so far.
D –
Better than C. The difference between preamps is much more noticeable with the Royer than
with the previous microphones.
E – About equal to B.
F – About
equal to B/E.
G – My favorite so far. Brighter/cleaner with more dynamics.
H – About equal to G.
The biggest difference was
between the microphone changes. Also there seemed to be a loudness difference and panning
difference between the files. Nonetheless I was happy with most of the recordings. EQing
would "fix" nearly any differences. The only one that stuck out as "bad" was MKH_A.wav .
There was something I really didn't like about that file. It was both dull and it
distorted several times.
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Airfix
Joined: 07/05/12
Posts: 250
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Re: Preamp comparison in SOS October 2012: your views!
[Re: ar316]
#1010507 - 28/09/12 05:11 AM
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bit of a double post there -
Edited by Airfix (28/09/12 05:13 AM)
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Airfix
Joined: 07/05/12
Posts: 250
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Re: Preamp comparison in SOS October 2012: your views!
[Re: ar316]
#1010508 - 28/09/12 05:13 AM
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Welcome ar316 I like your style - only Mackies eh? - right to the point! excellent
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didier.brest
Joined: 07/03/10
Posts: 10
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Re: Preamp comparison in SOS October 2012: your views!
[Re: Sam Inglis]
#1010511 - 28/09/12 06:47 AM
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I listened to the Royer SF12 tracks, both most enjoyable and a priori more revealing about
the preamps because of the low sensitivity from the microphone.
First
rank
C sounds very accurate and fast and has both deep and tight lows. It shall be a
first class preamp on the neutral side. Maselec is my best guess for this one.
E has
some nice colour. Would it be the quite confidential valve preamp GP PML 200 ?
Second rank
A and G, let me say Neve and API.
Third rank
I did
not care so much about the other D,F and H.
Fourth rank
B like Bad.
My guesses are just preconceived ideas about how shall sound these preamps
because I never had my hands on them. And I would not bet that that I could discriminate
consistently between them in an ABX test.
Edited by didier.brest (28/09/12 06:48 AM)
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