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WOO-HOOOO... WA7 "fireflies"!!! - Page 33

post #481 of 1413
I find using low gain gives a finer more refined and resolving sound. The high gain is more powerful and punchy but sacrifices the fidelity of the sound a bit and sounds a bit rougher. I use it on low gain all the time these days
post #482 of 1413
Quote:
Originally Posted by stainless824 View Post

I find using low gain gives a finer more refined and resolving sound. The high gain is more powerful and punchy but sacrifices the fidelity of the sound a bit and sounds a bit rougher. I use it on low gain all the time these days

when i go back and fort between the lo and hi gain, its very settle, cant tell any difference at low volume, when its max volume, thats when i can tell the difference, Bass has more distortion, and it sounds muddy, Max volume and low setting, bass still hits hard there is not distortion and more clear. 

 

my .02 cents. 

post #483 of 1413

my findings exactly. thanks for clarifying

post #484 of 1413

Depends on the headphone you're using.  Jack has said that Lo-Z should be used for 70ohm and under I believe while Hi-Z is mainly for high impedance hps.


Edited by mediumraresteak - 7/15/13 at 9:28am
post #485 of 1413

One minor clarification in terminology - the switch labeled Lo-Z / Hi-Z changes the output impedance matching with the headphones.

post #486 of 1413
I think the observations above sound reasonable, with the exception about impedance matching. Technically, matching is not the correct word. More than likely, that Terminology is really a way of saying low and high gain. The reason you can also say low and high impedance is that high impedance cans need high gain output.

This would be worth asking about however. In my mind, high gain usually means low loop feedback, which implies lower damping factor. It also implies higher distortion levels, but at lower harmonics, which will make the bass sound bloated etc. And, it relates to the impedance of the cans, at least if they are low Impedance.
Edited by Stoney - 7/18/13 at 5:52pm
post #487 of 1413
Impedance matching maximizes power transfer from source to load while minimizing loss due to reflections:
http://en.wikipedia.org/wiki/Impedance_matching
post #488 of 1413

Just got my tracking info woooooooooo!! Going to pair it with my DT990/600ohm headphones and eventually the T1 later this year.

post #489 of 1413

Guys, this DAC is unbalanced. Does it matter in any way?

 

I have no idea about the difference of balanced/unbalanced inputs.

post #490 of 1413
It sounds great with different cans with EH upgrade tubes
post #491 of 1413

@StormClaw - balanced vs unbalanced DAC in WA7:

 

I work in the pro-audio world and we use balanced equipment and cable to minimize trouble with ground loops and residual noise. We are constantly changing connections between equipment and mics. Unbalanced connections between a few devices as is common in the consumer world can be just as good with a little care. Unbalanced outputs on my Violectric V800 to WA7 sound very good. But so do the balanced outputs on the V800 to V200 SS headphone amp. Two different amps and sonic signatures. One DAC. Have been enjoying the WA7 with Beyerdynamic T90 headphones for many months now. My goto combination for recreational listening (as opposed to work listening for which I get paid.)


Edited by atomicbob - 7/24/13 at 7:11pm
post #492 of 1413
Quote:
Originally Posted by StormClaw View Post

Guys, this DAC is unbalanced. Does it matter in any way?

 

I have no idea about the difference of balanced/unbalanced inputs.

 

Balanced equipment was mainly for pro-audio equipment to minimise interference in long cable runs and isn't much of an issue with most audio gear. The use of balanced circuits with headphones is more of a design choice on how to deliver more power to headphones while maintaining low distortion. It is rather a complex subject and very off-topic for this thread, but basically I wouldn't worry about it.

post #493 of 1413

Quote:
Originally Posted by StormClaw View Post

Guys, this DAC is unbalanced. Does it matter in any way?

 

I have no idea about the difference of balanced/unbalanced inputs.

 

The DAC is not balanced because the amp is not balanced. It would make very little sense to build in a balanced DAC to drive an unbalanced amp. And if you want a balanced amp then  the WA7 is not for you.

Regarding the difference, I'm sure your wallet would notice it before your ears. Some people swear by it, but it's a little like solid state vs. tubes - a lot is down to personal preferences. Balanced systems bring in a lot of complexity for a little benefit, and while they address some issues they introduce others. 

post #494 of 1413
Quote:
Originally Posted by Currawong View Post

 

Balanced equipment was mainly for pro-audio equipment to minimise interference in long cable runs and isn't much of an issue with most audio gear. The use of balanced circuits with headphones is more of a design choice on how to deliver more power to headphones while maintaining low distortion. It is rather a complex subject and very off-topic for this thread, but basically I wouldn't worry about it.


+1000.  Dead on answer.

post #495 of 1413
Quote:
Originally Posted by PleasantSounds View Post

 

The DAC is not balanced because the amp is not balanced. It would make very little sense to build in a balanced DAC to drive an unbalanced amp. And if you want a balanced amp then  the WA7 is not for you.

Regarding the difference, I'm sure your wallet would notice it before your ears. Some people swear by it, but it's a little like solid state vs. tubes - a lot is down to personal preferences. Balanced systems bring in a lot of complexity for a little benefit, and while they address some issues they introduce others. 

Would you say WA7 is a great DAC? Does it have all the modern features to output great sound signal?  If i spend $1k on it, I can't afford it to be just mediocre.

 

I'm looking into WA7 mainly because i need a good DAC to pair with my ADAM A5X. I know there are probably cheaper alternatives but I just cant pass up on that design / look.

Headphones amp is a secondary feature for me, although I got a pair of HD650''s that i'd use from time to time.

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