I'm looking for an Amp for my TV/ computer which also plays all our music. Prefer a 2 channel with subwoofer out, low THD, and it must have an optical input. I'm looking at the (Yamaha A-S 301 2 x 60w, 0.019 THD $349.95). Does anyone know of any other comparable models? Older yamaha's with similar specs or anything similar but cheaper?