Ratpack,

If you're asking about Onkyo 703 it's done via remote control Setup==>Pereferences==>VolumeSetup==>MaximumVolume. By default it's set to OFF but you can set any level.

It also has another useful setting - the turn On level. By default it is set to LAST, and if the last night you're listening at 0dB and turn it back on at 6 in the morning... Well, your family is not going to be happy I set mine at -45 to provide a smooth start.

Regards,
Gena