I have an older model Kenwood receiver (model number KRA-4010) that I have had no luck finding wattage info (or any other info for that matter). I was curious if anyone has had any luck with estimated output of an amplifier, and if so how was it done? I was considering using some test tones I have collected, sine waves of differant frequencies and pink noise, and a DMM to try and get a rough estiamte of the voltage output on AC. Is my thinking right here, or will this simply not work. Thanks for any help.