came across this receiver on cl. The back panel plate reads 120vac, 50/60 Hz, 550w max., made in Japan. Has outputs for 6 speakers,(3 pair). Says everything works but does'nt light up, and I noticed the 6 push buttons are missing the silver caps. Says make offer. What does the 550 watts max mean and what would watts per channel be for this, does anyone have any info on this model, what should I offer for it. Is it any good, What's it worth? Probably end up being my garage receiver. Thanks for any info.