I ran my CD-55 at "99", which I believe is what is recommended by Resolution if you are using a pre-amp. At enjoyable listening levels it allowed me to keep my pre at ~50% output. I didn't do a comparison of the CDP attenuator's response vs. the pre-amps, so I don't know if there is a sonic benefit.
If I am not mistaken, you should try and set your pre-amp volume controls so that you minimize controlling at the extreme ends. Linearity of the volume control response? Maybe someone else can answer that.
If I am not mistaken, you should try and set your pre-amp volume controls so that you minimize controlling at the extreme ends. Linearity of the volume control response? Maybe someone else can answer that.