You are here

ART SplitMix 4 Review

Page 1 of 1

Re: ART SplitMix 4 Review

PostPosted: Sun Sep 30, 2018 3:47 pm
by Dave B
So, an addendum to this. I've been using mine for live work for a good while now (not much after this thread started in face). Originally, I paired it with my passive stereo DI box (Palmer) and, whilst it was fine, the level was dangerously low - most mixers were almost maxing out getting a healthy signal in. I could live with some headroom, but this was slightly OTT.

Then I paired it with a Rolls headphone / mic amp / DI / 'more me box' which was powered and that seemed to bump the level back up a bit. All well, very happy.

Last weekend, the Art failed on me - only one side going to the mix and that was intermittently distorting. Gig was fine and I've just dismantled my SplitMix to investigate what happened. Once you get it apart, the design is interesting. The 'input' jacks are one type and seem to be incredibly solid and soldered onto the pcb with no gap. You can see the cable going in and locking nicely. So 10/10 for the input jacks.

However, the output and the splitter sockets seem to use a different connector which is a sealed, one-piece unit which sits proud of the board by a mil or so and is therefore more prone to movement. It looks like my main output has taken a bit of a bashing and the connections are loose - I suspect that it's internal and not just the connections to the board. Which is annoying.

So it seems my options are to either spend a few quid (admittedly not a huge amount) on another replacement - and treat this one with more care - or get someone handy with a soldering iron to either replace with a new one, or swap with one of the 'split' sockets (I don't use that whole chunk of the unit, so a 'dead' socket up there is no biggie.

In short, the box is rugged and can take a beating. The input sockets also. But be gentler on the output and any splits that you are using.

HTH

Re: ART SplitMix 4 Review

PostPosted: Sun Sep 30, 2018 6:13 pm
by Wonks
I'll have a look at it for you, Dave. With a bit of foreknowledge, you could have brought it over when you came yesterday.

Re: ART SplitMix 4 Review

PostPosted: Mon Oct 01, 2018 8:47 am
by Dave B
Cheers Wonks. I had so much stuff to look at this weekend, I only got around to it after I came over! And I don't like to presume - but the offer is gratefully accepted - I'll give you a shout later. Ta very muchly.

Re: ART SplitMix 4 Review

PostPosted: Thu Oct 11, 2018 6:40 am
by ef37a
It has always surprised me that some enterprising bod has not produced a simple 2 channel "level lifter"?

I am thinking something with a gain of 0 to about 15dB which would lift a -10dBV source to the pro +4dBu point and a have a maximum output of around +22dBu, impedance balanced on TRS.

Such a box could be made very cheaply I think with a couple of decent chips and SMT? Powered by 2X PP3 with an external power option.

I can find any number of small mic pres and RIAA corrected phono amps but nothing with the above specification.

Now of course I shall be shot down with a dozen links to JUST such a device!

Dave.

Re: ART SplitMix 4 Review

PostPosted: Thu Oct 11, 2018 10:44 am
by Hugh Robjohns
ef37a wrote:It has always surprised me that some enterprising bod has not produced a simple 2 channel "level lifter"?

I am thinking something with a gain of 0 to about 15dB which would lift a -10dBV source to the pro +4dBu point and a have a maximum output of around +22dBu, impedance balanced on TRS.

There's load of them, across a wide range of prices. Normally marketed as a 'domestic equipment interface' or something along those lines, and they usually include a two-channel attenuator for padding down pro-level audio to a nominal -10dBV, as well as the gain stage, so the device converts 'both ways'.

EG: Image
http://www.artproaudio.com/product/cleanbox-pro-dual-channel-level-converter/

Re: ART SplitMix 4 Review

PostPosted: Thu Oct 11, 2018 10:50 am
by ef37a
Hugh Robjohns wrote:
ef37a wrote:It has always surprised me that some enterprising bod has not produced a simple 2 channel "level lifter"?

I am thinking something with a gain of 0 to about 15dB which would lift a -10dBV source to the pro +4dBu point and a have a maximum output of around +22dBu, impedance balanced on TRS.

There's load of them, across a wide range of prices. Normally marketed as a 'domestic equipment interface' or something along those lines, and they usually include a two-channel attenuator for padding down pro-level audio to a nominal -10dBV.

EG: Image
http://www.artproaudio.com/product/cleanbox-pro-dual-channel-level-converter/

Yes Hugh but you are paying for mic pres you don't want and a "padded down" line input will probably compromise the noise performance.

As I said, there are sheds of things for mics and mag pups but a simple, low noise 15dB line amp seems rare to non-existant?

Dave.

Re: ART SplitMix 4 Review

PostPosted: Thu Oct 11, 2018 10:57 am
by Hugh Robjohns
ef37a wrote:Yes Hugh but you are paying for mic pres you don't want

There are no 'mic pres' involved here. Just a pair of adjustable line balancing amps with up to 21dB of gain (in this example).

...and a "padded down" line input will probably compromise the noise performance.


No, not to any audible degree... but I think perhaps you mis-understand the concept and application. In the device mentioned above the active amps raise the level of nominal -10dBV to nomninal +4dBu and balance the output, while the other have of the box has pads to accept nominal +4dBu and pad it down and unbalance it for nominal -10dBV outputs. Just the thing for hooking up a domestic cassette recorder or video recorder into a professional system.

As I said, there are sheds of things for mics and mag pups but a simple, low noise 15dB line amp seems rare to non-existant?

And as I said, they really aren't! :D

Re: ART SplitMix 4 Review

PostPosted: Thu Oct 11, 2018 12:17 pm
by ef37a
B,B.But! It has XLRs and phantom power!

No it don't (***eyes!) Thought that said "+48" Still XLRs and not the simple device I am thinking of.

Dave.

Re: ART SplitMix 4 Review

PostPosted: Thu Oct 11, 2018 1:07 pm
by Hugh Robjohns
ef37a wrote:No it don't (***eyes!)


:lol:


Still XLRs and not the simple device I am thinking of.

Well, it has balanced outputs and XLRs are convenient... but yes, TRS sockets would do to., And yes, it's a more elaborate than your suggestion, but that's to make it more useful in the real world of limited market / sales.

There's an American company called RDL that make simple 'solution boxes' that does something closer to your idea: Image

https://www.rdlnet.com/product.php?page=53

...although that has no PSU, no sockets at all, and costs a ludicrous £160!!!!!!!

I completely agree with you that a simple case with a couple of RCA-phonos, a couple of TRS sockets, some +20dB balancing amps and a dual PP3 battery holder would be useful and cheap and easy for DIY construction... but would the sales market be sufficient to make production cost effective for a mainstream manufacturer?

H

Re: ART SplitMix 4 Review

PostPosted: Thu Oct 11, 2018 1:28 pm
by ef37a
Ah! We have grokking!

Yes, useful. I see quite few posts where people want just 10dB or so of gain to lift some bit of "domestic" gear up to proper line level but as you say, could it be a commercial success?

I think it could, with SMT the PCB would be about the size of a postage stamp and cost less! Most expensive part would be the tin and pot.

Of course, such a device is easily within the capabilities of most on THIS forum but the level of practical skill "out there" generally in Home Recording Land is abysmal. There are a million YT "How Tos" but nothing beats a book.

Dave.