Posted March 10 2012 - 03:07 PM
Don't be concerned too much with receivers or speakers power ratings. 99% of the time you won't use anywhere near the maximum power of the receiver or the speakers, especially if your system is setup properly. The Ohm rating (8 ohm is good) and the speakers sensitvity (SPL) are far more important. And that JVC receiver really won't come close to 100 wpc with all 5 channels hooked up. It only consumes 180 watts. 180 divided by 5 is 45. Times that by 80% effeciency and you're looking at about 35 wpc which is about what most receivers in that price range will do. 80, 100, 110, etc. You really won't be able to tell the difference even if those numbers were actually accurate. The 509 will actually be a bit more powerfull than your JCV because Onkyo uses a very good amp section (second maybe to Harman kardon). A new receiver also has many settings and features that really enchance the sound quality like Audyssey room correction and the ability to decode the new Dolby TrueHD and DTS Master Audio formats found on BluRay discs. The 509 is a nice entry level receiver that will really be an upgrade from the JVC, which may have been nice in it's day, but it's day has passed. Also consider the Denon 1612 (my personal favorite in that price range), Pioneer 821, Yamaha 471 and H/K 2650 but the 509 is a very choice at that price.
"Everyday room": Panasonic 58" Plasma, Dish HD DVR, Pioneer Elite vsx-23, BDP-23 BR, dv58avi universal dvd player, Dynaudio Audience 50's, 40's 122C, Dayton HSU-10 subwoofer.
"Movie/Music room": Toshiba 65" DLP, Dish HD receiver, Adcom GF-700 5.1 receiver, OPPO BDP-80 BR player, Polk LSI25's-LSi7's-LSiC, 2 original Dayton 10" "Mighty-Mites" subwoofers. (subject to change without notice).
Also have...too much to list. Help me.