Which Should Control Volume Pre-amp or Amp? - AVS Forum | Home Theater Discussions And Reviews
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post #1 of 5 Old 02-14-2020, 02:32 PM - Thread Starter
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Which Should Control Volume Pre-amp or Amp?

Hello. With my 2 channel setup, i.e. DAC/Pre-amp feeding a separate 2 channel amp, I have the option to let either device control the volume:


- set the amp on ht-bypass mode and let the DAC/pre-amp control volume?
- turn off volume control of DAC/pre-am and disable ht-bypass mode on amp and control volume with amp?


Is their potential for more distortion or background noise with one way or the other? Thanks in advance!
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post #2 of 5 Old 02-14-2020, 03:00 PM
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Originally Posted by tklein2 View Post
Hello. With my 2 channel setup, i.e. DAC/Pre-amp feeding a separate 2 channel amp, I have the option to let either device control the volume:


- set the amp on ht-bypass mode and let the DAC/pre-amp control volume?
- turn off volume control of DAC/pre-am and disable ht-bypass mode on amp and control volume with amp?


Is their potential for more distortion or background noise with one way or the other? Thanks in advance!
Generally the pre amp.
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Geoff A. J., California
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post #3 of 5 Old Yesterday, 11:49 AM
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Originally Posted by tklein2 View Post
Is their potential for more distortion or background noise with one way or the other? Thanks in advance!
When you have a chain of devices with level controls you want to set each one so it is blasting as loudly as possible, while playing the loudest music you have, yet not so loud such that it distorts either itself nor the input stage of the next device in the chain. You can do this by ear or ideally while looking at an oscilloscope to see when the test tone's wave form starts to clip [the rounded tops of the sine wave look like they have been clipped off with scissors, hence the name "clipping distortion"].

Once done you typically use the last stereo volume control in the chain to make actual changes in daily use, usually on the preamp or receiver.
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post #4 of 5 Old Yesterday, 11:53 AM
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Originally Posted by tklein2 View Post
Hello. With my 2 channel setup, i.e. DAC/Pre-amp feeding a separate 2 channel amp, I have the option to let either device control the volume:


- set the amp on ht-bypass mode and let the DAC/pre-amp control volume?
- turn off volume control of DAC/pre-am and disable ht-bypass mode on amp and control volume with amp?


Is their potential for more distortion or background noise with one way or the other? Thanks in advance!
Is this an amp, or an integrated amp?
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post #5 of 5 Old Yesterday, 05:57 PM - Thread Starter
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Is this an amp, or an integrated amp?
The Cambridge Azure 851A is an integrated amp
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