I've been getting an edumacation in HDMI receivers the past couple of weeks, since I bought a PS3 and need to upgrade to a receiver with HDMI audio so I can enjoy those PCM tracks on Blu-ray.
One problem is my HDTV only has DVI for digital input. The set is less than 3 years old, I'm really happy with it and not upgrading for a while. The DVI connection is HDCP compliant, my HD DVD & PS3 are both satisfied with it.
My first try was a Sony STR-DG710, a new line of receivers with 710,810 & 910 models. Not HDMI 1.3, but the specs say all 3 models support 1080p video & multi-channel HDMI audio. I picked up a 710 from Best Buy on sale for $255. I couldn't get HDMI audio to work at all, and then I notice a page in the manual say says "We do not recommend the use of an HDMI to DVI conversion cable. Doing so may result in the video and or audio not working properly".
The video was fine, just no audio. I dig through he manual and find the option to turn off audio for the HDMI out. Still no go. So, I hook the PS3 up via component for display, and I get audio! OK, I pop in "Crank" and select the PCM track - I only get 2 channel stereo, the same as I was with digital optical on my old receiever! So I got into the PS3 menu and find the "automatic" setting for HDMI audio to query the receiver. Yep, it comes back saying the device can accept DTS & DD in 5.1, but only only 2 channel PCM. I dig through the manual and find the setting to set decoding priority from "automatic" to PCM only. I query with the PS3 again - now the DTS & DD are gone, but still only 2 channel PCM.
The POS went back to BB the next day, and I recommend avoiding these Sony receivers like the plague.
While I plan on going with the Onkyo 605 for future proofing with HDMI 1.3 & DTS HD-MA decoding, but I bought a 604 from CC to "try out" and make sure it works with my DVI. I don't normally abuse the chain store's 30 return policy, but disparate times call for disparate measures.
OK, Onkyo does it right - by default the audio is off on for HDMI output, and it works fine with my DVI connection. I've had it for a few days now, and it works perfectly with my HD DVD & PS3 players on HDMI, and the multi-channel PCM rocks. But one disappointment is the volume level. My "old" receiver is a 6 yr. Sony 5.1 channel, with 100 watts per channel. The Onkyo 604 is 90 watts oer channel, 7.1 channel, but I'm only using 5.1 speakers. The power level between 100 & 90 watts per channel should only be 10%, right? Well, on my old Sony I usually had the volume level around 50%; 65% was rockin' the house. On the Onkyo, I have to crank it up to 70 to 80% volume to have decent volume. On the TrueHD audio on the Letters from Iwa Jima HD DVD, and maxed it out at 100% and it was just adequate. If I ever cranked my old Sony up to 100% I'd have had shattered windows and broken speakers.
So, now I'm thinking I need to go with an Onkyo 675 or 805 to get 100 - 110 watts per channel. Is it the HDMI audio the results in such lower volume levels, or are Onkyo receivers somehow less powerful?
EDIT: I figured it out. I had just run the "auto-configuration" with the included microphone. It did a nice job, but in digging through the manual I decided to dig into the "Advanced Settings". The volume level of each speaker can be set from -15db to +15db. Auto-configuration had set every speaker from -5 to -10db! Using the test tones, I increased the speakers from +5 to +12db. Oh yeah, now I get volume!