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driving akg 712

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driving akg 712

Postby paleface » Tue Sep 18, 2018 5:26 pm

hello folks

ive just bought a pair of akg 712 from thoman

i currently have a focusrite 2in4

will the headphone amp on the focusrite be able to power the akg 712 ?


all answers appreciated
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Re: driving akg 712

Postby Wonks » Tue Sep 18, 2018 5:55 pm

I don't see why not. I've got AKG 712s and they were/are fine with my MOTU A/I, Samson C Control and my iPhone 4 and 6 headphone outputs.
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Re: driving akg 712

Postby paleface » Tue Sep 18, 2018 6:55 pm

thank u wonks


i had read some stuff claiming it would be underpowered
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Re: driving akg 712

Postby Wonks » Tue Sep 18, 2018 7:31 pm

I suppose it all depends on how loud you need them to be. Without trying them specifically on that interface it's always going to be some doubt, but I really don't foresee a problem unless you want them ear-damagingly loud.
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Re: driving akg 712

Postby Roelfie » Wed Oct 03, 2018 11:08 pm

Hi paleface
I can’t really comment on your equipment. In my case, with audio from a Yamaha Synth.
I use a FiiO A3 - Portable Headphone Amplifier around (60 US$). It’s a great little product.
It made a huge difference in sound quality and volume levels. Of course, I’m careful with volume, and only listen at moderate levels, but will not do without this little amplifier.
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Re: driving akg 712

Postby Ramirez » Wed Oct 03, 2018 11:23 pm

I'm using the K712 witht he Focusrite 18i20 (1st generation) with no problems. Although I think the 2i4 might be USB bus-powered, so it might not have the same juice for the headphone amp?
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Re: driving akg 712

Postby Dave B » Thu Oct 04, 2018 10:39 am

Just to pick up on one bit of possible confusion :

Whilst I would baulk at the term 'underpowered', it is worth noting that most interface headphone amps are fine for a few years ago, but do need to be pushed a little when you are mixing with lots of headroom (as we do now). If someone could give us a tad more range, then I'd be a happy bunny. But that's far from being 'underpowered' - at least in my book.

:)
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Re: driving akg 712

Postby ef37a » Tue Oct 09, 2018 9:24 am

Dave B wrote:Just to pick up on one bit of possible confusion :

Whilst I would baulk at the term 'underpowered', it is worth noting that most interface headphone amps are fine for a few years ago, but do need to be pushed a little when you are mixing with lots of headroom (as we do now). If someone could give us a tad more range, then I'd be a happy bunny. But that's far from being 'underpowered' - at least in my book.

:)
This problem crops up quite often. A newcomer to PC audio just gets convinced that it is better to track at -18dBFS ish and then finds the AI headphone level is too low, especially if there is competition from other sounds.

As Dave says, it is not a lack of "power" in the headphone amp but lack of gain.

BTW I found the October article about headphones (Sam Inglis, Heads Up) MOST illuminating! Can I out in a request for similarly in depth article about the design philosophy of headphone amplifiers? There seems for instance to be two camps?
Those that are happy to drive headphones from a relatively high source resistance of 33 to 100 Ohms and those that say the amplifier must have a Z out close to zero.
Personally I can see little point to the latter concept and it makes the design more difficult.

Dave.
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Re: driving akg 712

Postby Martin Walker » Tue Oct 09, 2018 1:52 pm

ef37a wrote:
Dave B wrote:Just to pick up on one bit of possible confusion :

Whilst I would baulk at the term 'underpowered', it is worth noting that most interface headphone amps are fine for a few years ago, but do need to be pushed a little when you are mixing with lots of headroom (as we do now). If someone could give us a tad more range, then I'd be a happy bunny. But that's far from being 'underpowered' - at least in my book.

:)
This problem crops up quite often. A newcomer to PC audio just gets convinced that it is better to track at -18dBFS ish and then finds the AI headphone level is too low, especially if there is competition from other sounds.

As Dave says, it is not a lack of "power" in the headphone amp but lack of gain.

I adopted the -18dBFS ish approach some years ago, but now slot in an Airwindows PurestGain plug-in on my master channel to bring everything up just before going to my A/D converters, so I don't have to run my headphone amps with such high gain settings.

www.airwindows.com/purestgain

A big plug for the Airwindows range by the way - if you're happy to dispense with fancy GUIs to concentrate on stunning audio quality and great user/developer feedback, look them up - I'm using more and more of them, and have starting supporting their developer Chris Johnson via Patreon donations.


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