OK. It has been a while since I played music with AVR using preamp duty.I usually play my speakers (Q350, S5s and A26s) in pure direct mode. Not the Wharfies though. They really benefit from the bass knob turned to the max without experiencing hardening of any frequencies or the mid range and treble being overpowered. This is one coloured presentation that really works for most types of music as far as the Wharfies are concerned (always the caveat - to my ears).
Was not impressed with what it does to the sound. Maybe I don't know how to work with AVRs for music.
The Marantz PM7001 is not with me anymore (gave it to dad)
Even with this I would always have the tone controls engaged (sometimes tweaked up/down)
Did not like the sound from "Source Direct" option
With Parasound Pre, tone controls are always in play. Tone flat only brings them to 0dB.
Since this chain has the MA cubes (inherently "bright"), treble is -2 to -4 dB, bass is +1 or +2 dB
Sub level has its own control and I use this to tame bass heavy tracks (albeit rarely)
When using Lyrita Pre, there is no tone control.
Cheers,
Raghu