or Connect
Head-Fi.org › Forums › Help and Getting Started › Introductions, Help and Recommendations › Does it matter if i use single end input for balanced amplifier?
New Posts  All Forums:Forum Nav:

Does it matter if i use single end input for balanced amplifier?

post #1 of 5
Thread Starter 

hi guys, 

 

i am just wondering can i use single end output DACs for balanced amplifiers like bryston BHA-1 which provide single end input?

post #2 of 5
If the balanced amp has a single ended input, then it can use it. It will still output balanced, so you can use balanced headphones. But ideally, a balanced set-up is balanced all the way from the source to the ears. Otherwise, why bother?
post #3 of 5
Quote:
Originally Posted by billybob_jcv View Post

If the balanced amp has a single ended input, then it can use it. It will still output balanced, so you can use balanced headphones. But ideally, a balanced set-up is balanced all the way from the source to the ears. Otherwise, why bother?

I've been told the balanced configuration in an amplifier circuit can act to inherently cancel distortion.  So there's definitely an advantage in the circuit itself.  It doesn't have to necessarily be fed from or output to a balanced device.  In fact, a balanced arrangement on the output depends primarily on the ability to swing a much greater voltage differential at a higher slew rate.  That means it may make a noticeable difference with high-impedance cans, but for the rest, the differences noted are probably as a result of the canceled distortion, not an improved ability to drive the load.

post #4 of 5
Thanks for the clarification - that makes sense. I suppose the thinking is that any unbalanced portion of the signal path can pick-up noise, and that noise would then be canceled as it went through the balanced amp. OTOH, if you can prevent the noise farther upstream by keeping it balanced on the entire path, then the signal would (at least in theory) be cleaner going into the amp and also probably (in theory) cleaner coming out of the amp, and stay cleaner as it traveled balanced to the headphone drivers. Thanks - and it's good to see an MOT in the help threads!
beerchug.gif
post #5 of 5
Thread Starter 
Quote:
Originally Posted by billybob_jcv View Post

Thanks for the clarification - that makes sense. I suppose the thinking is that any unbalanced portion of the signal path can pick-up noise, and that noise would then be canceled as it went through the balanced amp. OTOH, if you can prevent the noise farther upstream by keeping it balanced on the entire path, then the signal would (at least in theory) be cleaner going into the amp and also probably (in theory) cleaner coming out of the amp, and stay cleaner as it traveled balanced to the headphone drivers. Thanks - and it's good to see an MOT in the help threads!
beerchug.gif

 

 

Quote:
Originally Posted by tomb View Post
 

I've been told the balanced configuration in an amplifier circuit can act to inherently cancel distortion.  So there's definitely an advantage in the circuit itself.  It doesn't have to necessarily be fed from or output to a balanced device.  In fact, a balanced arrangement on the output depends primarily on the ability to swing a much greater voltage differential at a higher slew rate.  That means it may make a noticeable difference with high-impedance cans, but for the rest, the differences noted are probably as a result of the canceled distortion, not an improved ability to drive the load.

 

 

Quote:
Originally Posted by billybob_jcv View Post

If the balanced amp has a single ended input, then it can use it. It will still output balanced, so you can use balanced headphones. But ideally, a balanced set-up is balanced all the way from the source to the ears. Otherwise, why bother?

Thanks all for your great help, i think i am gonna go buy a dac with balance output. 

New Posts  All Forums:Forum Nav:
  Return Home
Head-Fi.org › Forums › Help and Getting Started › Introductions, Help and Recommendations › Does it matter if i use single end input for balanced amplifier?