eh teka, bakit ka nga ba magaapgreyd???
604 lang ang avr ko ngayon, hdmi 1.1 lang sya, so cant decode dts-ma and dolby hd. yun yung primary reason, secondary is pre-outs para kung sakaling mag external amp, pwede rin, 706 is the lowest onkyo avr with pre-outs and hd audio decoding.
actually yung yamaha na 663 oks sana, 24k lang, may pre-outs din, kaso walang audyssey, hindi kasi ako marunong mag calibrate, kaya i need this feature.
kaya pinili ko upgrade path na pinaka cheap ika nga. kung may pre-outs ang 606, yun na sana.