Click here: http://audio.manualsonline.com/manua...er/vsx406.html
The Pioneer VSX-406 is a Dolby Pro Logic A/V receiver, with 80 watts x 4 channels (80 watts for each of the 2 front main channels, 80 watts for the center channel and 80 watts for the 2 surround channels). So there is about 40 watts for each surround channel.
The VSX-406 is a 1996 model receiver (hence the last digit of it's model #).
The THD for the Main/Center/Surround is 0.8%.
The rated frequency response (Full-Power Bandwidth) is 40hz-20khz (no + or -db mentioned, but I'll say about 0.5db for that range).
The MM Phono S/N (db, A-Wtd.) is 75db.
It's got 2 video inputs.
The tuner section is pretty decent.
The weight is 16 lbs.
The list price was $310 U.S. dollars. (1996)
The price now that you can get it, is $60 or below.
Note: Connect both surround speakers to obtain sound coming from them.