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NEW - Schiit Asgard 2 - Page 147

post #2191 of 2199
Quote:
Originally Posted by KLJTech View Post
 

What are you using as a source to the Asgard 2 and do you know what it's output voltage is? 


I used my PC & my Sansa Clip.

On both, the HD600 sound weaker.

I tested my ATH M50 as well & it also sounded louder than the HD600.

 

Not sure the voltage output, I have the power cable plugged directly to the wall.

post #2192 of 2199
Quote:
Originally Posted by Thenewguy007 View Post

 

I'm guessing none of them need the 'lo' setting?

It's the other way arround, none of them should need the "high" setting. You want to use low gain as much as possible and push the volume knob near max in that setting if necessary . Otherwise, you'll attenuate heavily a high power circuit with more noise and distortion, which is just silly when you think about it. Think of it as choking a V8 engine behind the worst air intake system, a tinny exhaust and putting a rev limiter on it.  You won't get the power of that engine while keeping it's high noise output and terrible fuel economy and so on.


Edited by Rem0o - 6/29/15 at 8:57pm
post #2193 of 2199
Quote:
Originally Posted by Rem0o View Post
 

It's the other way arround, none of them should need the "high" setting. You want to use low gain as much as possible and push the volume knob near max in that setting if necessary . Otherwise, you'll attenuate heavily a high power circuit with more noise and distortion, which is just silly when you think about it. Think of it as choking a V8 engine behind the worst air intake system, a tinny exhaust and putting a rev limiter on it. 


Correct me if I'm wrong but the high gain is for higher impedance headphones like the HD600?

 

 

post #2194 of 2199
Quote:
Originally Posted by Thenewguy007 View Post
 


Correct me if I'm wrong but the high gain is for higher impedance headphones like the HD600?

High gain pushes more voltage if you need higher volume, but it comes at a cost (higher noise and distorsion, among other things). If the volume you get at low gain let say at 3 o'clock on the knob is good, then you should stick there instead of going high gain at 10 o'clock (just an example). In that example, both will give the exact same power to your headphones, but the lower gain power should be cleaner.


Edited by Rem0o - 6/29/15 at 8:59pm
post #2195 of 2199
Quote:
Originally Posted by Thenewguy007 View Post
 


I used my PC & my Sansa Clip.

On both, the HD600 sound weaker.

I tested my ATH M50 as well & it also sounded louder than the HD600.

 

Not sure the voltage output, I have the power cable plugged directly to the wall.

 

Make sure that your PC's audio Line-Out volume is set to max when feeding the Asgard 2. Using the Sansa Clip as a source means that you're amplifying the signal twice, once through the Sansa Clip and then that signal is being amplified yet again my the A2 (not good). Normally you want to send a Line Level signal (about 2 volts) to your headphone amp.

 

I use the Asgard 2 just about every day and it's a great sounding amp, but it or any other headphone amp can only sound as good as the quality of signal you feed it. 

 

Good luck! 

 

Here's a very informative review of the Asgard 2 and Bifrost in which they drive Sennheiser HD600's with the A2:

http://hometheaterhifi.com/headphone-amplifiers/headphone-amplifiers/schiit-asgard-2-headphone-amplifier-and-bifrost-uber-dac-review.html


Edited by KLJTech - 6/29/15 at 9:26pm
post #2196 of 2199
Quote:
Originally Posted by Thenewguy007 View Post
 


Correct me if I'm wrong but the high gain is for higher impedance headphones like the HD600?

 

 

 

Correct, the low gain is for IEM's and high sensitivity/easier to drive headphones. 

post #2197 of 2199
Quote:
Originally Posted by Thenewguy007 View Post
 

Strange that they aren't busting out high levels of sound like the X1 is through the amp.

I haven't burned them in yet, but I can't imagine that will close the gap.

 

I had the thought higher impedance = more power to drive = larger sound.

No. Higher impedance is the result of a headphone's design. The  amount of power required is determined by the headphone's sensitivity. One needs a greater voltage swing and less current to achieve the same power level at a higher impedance. This has nothing to do with the resulting SQ.

Power = Voltage2 / Impedance

My HE-500's are low impedance and require more power than my 300 Ohm HD600's. None of this has to do with larger sound, by the way what do you exactly mean by that term?

post #2198 of 2199
Quote:
Originally Posted by KLJTech View Post
 

 

Make sure that your PC's audio Line-Out volume is set to max when feeding the Asgard 2. Using the Sansa Clip as a source means that you're amplifying the signal twice, once through the Sansa Clip and then that signal is being amplified yet again my the A2 (not good). Normally you want to send a Line Level signal (about 2 volts) to your headphone amp.

 

I use the Asgard 2 just about every day and it's a great sounding amp, but it or any other headphone amp can only sound as good as the quality of signal you feed it. 

 

 

I have my MacBook Pro connected via USB to my Gungnir and Asgard 2. I use Amarra to play music.

 

You say you have to put the PC audio line-out volume to max. If I do so, I get distortion in my headphones. I have to put the volume to -10/-15 dB to get a clean sound.

 

Is it normal ?

 

Thanks ! 

post #2199 of 2199
Quote:
Originally Posted by Rem0o View Post
 

High gain pushes more voltage if you need higher volume, but it comes at a cost (higher noise and distorsion, among other things). If the volume you get at low gain let say at 3 o'clock on the knob is good, then you should stick there instead of going high gain at 10 o'clock (just an example). In that example, both will give the exact same power to your headphones, but the lower gain power should be cleaner.

 

Thank you. Low gain on the Asgard always sounded better to me on my HD600 (smoother and more relaxed), but since I always saw opinions recommending high gain for them, I used that. I guess I should have trusted my ears more.

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