I have had a technics SA-DX750 receiver for 5 years but I lost the manual and there is a setting I cannot figure out. There is an option "DR COMP" which I can set to "off", "standard" or "max". What does this setting do?? I've played around with it a little but I haven't been able to figure it out.
-also, which frequencies are filtered when the speakers are set to small?
thanks.