Found out that the 604 have HDMI ver1.1 only. So what have I got to lose if I get this one instead of AVRs with HDMI 1.3?
HDMI 1.3
Released 22 June 2006.[7][8]
* Increases single-link bandwidth to 340 MHz (10.2 Gbit/s)
* Optionally supports 30-bit, 36-bit, and 48-bit xvYCC with
Deep Color or over one billion colors, up from 24-bit sRGB or YCbCr in previous versions.
* Incorporates
automatic audio syncing (Audio video sync) capability.
* Optionally supports output of
Dolby TrueHD and DTS-HD Master Audio streams for external decoding by AV receivers.[9] TrueHD and DTS-HD are lossless audio codec formats used on Blu-ray Discs and HD DVDs.
If the disc player can decode these streams into uncompressed audio, then HDMI 1.3 is not necessary, as all versions of HDMI can transport uncompressed audio.
* Availability of a new mini connector for devices such as camcorders.[10]
HDMI 1.3a
Released 10 November 2006
* Cable and Sink modifications for Type C
* Source termination recommendation
* Removed undershoot and maximum rise/fall time limits.
* CEC capacitance limits changed
* RGB video quantization range clarification
* CEC commands for timer control brought back in an altered form, audio control commands added.
* Concurrently released compliance test specification included.