adding attenuation beyond a volume control (attenuator) so you can attenuate less before the added attenuator. are you all nuts?
The Bryston puts out 15 volts, that's a lot. Attenuating the signal (pad down) is an acceptable method to knock down the output signal. Much cleaner and simpler that adding a variable attenuator (volume control). No impact to the sonic qualities and it will lower the noise floor. This is exactly the reason attenuators are made.