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In Reply to: Parasound A23 posted by DanS on April 1, 2017 at 12:37:26:
Those input attenuators are for gain matching, not volume control.
Obviously it's possible to use them to control volume, but that would be extremely inconvenient even if you only had one source. And as others mentioned, it won't help you with source switching.
The best use case I can come up with for those input attenuators is to connect a DAC with a digital volume control, and adjust them such that the digital volume control is operating in its optimum range to avoid loss of resolution.
Another case is if you're using the A23 along with other amps or AVR in a combined stereo/HT setup and you need to reduce the gain of the A23 to be in line with the other channels.
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Follow Ups
- It's not an integrated amp - Dave_K 11:13:49 04/05/17 (0)