Onkyo TX-SR804? - Page 27

Originally Posted by jrh203

I just got my SR804 yesterday. I decided to return the SR674 to see if I would notice a difference. In my limited knowledge, it definately seems to be worth the extra $100 or so that I could find them each for.

Unfortunately that brings me to the humming issue at higher volumes. Just as 1953 has stated in his post. While pausing a source, the hum becomes evident at around -20db on my HD-A2 and around -30db on my Motorola 6412. Both connected via HDMI. Unfortunately, those are the only numbers I have to reference the sound level.

I just wanted to thank you 1953 for taking this issue head on with Onkyo. I may simply return it, and opt for separates. I will continue to monitor this situation though as I look forward to hearing a resolution.

Originally Posted by walk

Have you checked for ground loop?

Originally Posted by NICK123

I am new at this....I have 804 but the sound from the receiver is not warm. I did the speaker auto set up, did the speaker calibration and turn the EQ off but somehow it still sound a little off for some reason. Any suggestion is appreciated.....

Originally Posted by NICK123

I am new at this....I have 804 but the sound from the receiver is not warm. I did the speaker auto set up, did the speaker calibration and turn the EQ off but somehow it still sound a little off for some reason. Any suggestion is appreciated.....

Originally Posted by ideadirect

Ughh... I just thought I narrowed it down to this receiver and I keep reading about humming, clicking and PS3 issues... Seems like the problems are starting to get resolved but I'm ont confident enough to shell out the money. Also, people have proposed bypassing the HDMI switching which in my mind defeats my whole purpose of buying an HDMI switching receiver to begin with and is an unacceptable solution (inferior sound, lower quality (no 1080p) and more cables).


I think I'm back to the drawing board.

Originally Posted by egcarter

The TX-SR805 is due in June.

Originally Posted by caesar1

What will the 805 have, that the 804 does not?

Originally Posted by JacobC1983

please excuse my displeasure in this product, but whats the point of having an HDMI switching receiver that you can't use for HDMI switching? even if you lose picture quality a tiny amount.. I still feel cheated in this product.. has anybody had any luck getting theirs replaced by onkyo because of this fault?

Originally Posted by 1953

After the failed attempt to rid my 804 of the "Hum" and the fact that this audio interference begins at a very high volume range (67-74mhz) I decided to take a thorough look at the whole "run video through the AVR" scheme.

While we all have our own opinions I decided to consulant with the manufacturers of my AV hardware. Onkyo for the 804, Toshiba for my HD-DVD, Denon for my DVD, Sony for my HDTV and Directv for my HD DVR & HD/SD. To my surprise they all agreed that at this point in time the only true advantage in routing video through an AVR is cable consolidation. And, as I already knew, superior video quality is obtained when the video signal is routed directly to the television.

With my latest research completed I reconfigured my AV setup so that all video goes directly to my television with only audio routed to my 804. This configuration provides outstanding video and audio.

But, the idea that I paid quite a bit for less perfect AVR still eats away at me.

I sincerely invite you to respond with both comments and opinions.

Louisp.

Originally Posted by walk

If you have "horrible hum" return it. I've owned a lot of Onkyo amps/receivers over the years and that would be the first I'd ever heard of it.

NICK123 - you have 8ohm speakers but impedence is set at 6? Why? Maybe that's the problem...?

Originally Posted by JacobC1983

please excuse my displeasure in this product, but whats the point of having an HDMI switching receiver that you can't use for HDMI switching? even if you lose picture quality a tiny amount.. I still feel cheated in this product.. has anybody had any luck getting theirs replaced by onkyo because of this fault?

Originally Posted by caesar1

I don't think the issue applies to all users. I haven't experienced the hum (yet) -- keeps fingers crossed.

Originally Posted by caesar1

I believe a digital audio cable (whether optical or coaxial) cannot carry the latest and greatest HD DVD/Blu Ray audio (like Dolby True HD, etc). Thus you need HDMI for that -- passed through your receiver.

The other advantage to HDMI switching is ease of use (not just less cables). You only need to use one input on your display (HDMI) -- instead of switching video inputs. So the only switching that needs to be done is via the receiver. Makes it easier to operate and to have others use the equipment as well (like wives and girlfriends).

As far as picture quality, I know the theory, but I have not been able to see any degradation when playing DVDs attached via HDMI directly to my projector, or when HDMI is switched through my 804, then out to my projector from my DVD player.

Originally Posted by 1953

caesar1, it is great to hear that you are not having audio problems.

I am going to go out on a limb here and ask you to consider performing a wee test. The test is simple - Ensure a HDMI cable is connecting the 804 to a television. Ensure the 804 is connected to a powered subwoofer via the subwoofer pre-out input. With only the 804 powered up slowly increase the volume unit from min to max. Note the range of the interference, if any?

Louisp

Originally Posted by caesar1

Okay, I did the test as you instructed: receiver on only. HDMI out from the 804 is attached to my projector (my TV in this case). 804 is and has always been connected to my powered sub (an SVS PB12-NSD via the pre-out). Note that I have the sub set to always be on too -- as opposed to automatically come on when it senses LFE. I heard absolutely nothing at all when the volume was turned all the way up (to +5) -- and nothing anywhere in between. Not a peep, not a buzz, not a hum. Dead silence.

However, I then powered on my DVD player (which is the source my receiver was set to). With the DVD player on (no DVD in it though) and the receiver set to DVD source (which outputs via HDMI, through the receiver, to my projector), I did hear a slight hum, only as the volume approached reference level. This hum was from all of the speakers, not just the sub. The hum was not audible from my listening position until about -10 from reference. Although if I tried real hard I could possibly hear it faintly starting at -15. Realistically, it did not appear that this would be audible during actual playback of a DVD (indeed I have not noticed anything out of the ordinary when watching DVDs) -- even though my typical listening volume is -15 to -13.

Is that the hum you are referring to? Or is it something different? Is your hum only coming from the sub?

Originally Posted by schnurmac

Mine comes from all speakers also. I have the same exact issue.
It used to be worse. I had front left connected wrong on back of 804. When I corrected it the hum was not as noticable. I became aware of this when I was playing around with the movie Cars. I ran the THX set up. It actualy told me my LF was out of phase.

I am very unhappy with the hum period. I paid for what I thought was a decent AVR
with great features for todays components. I now look at it as defective piece of gear.

This probably has nothing to do with it the hum. But Im interested in those that dont have hum.

How long are your wire runs to each speaker?

Those with hum. How long are your wire runs?

I will post mine tonight.

Originally Posted by caesar1

If your hum is as I described, I dont' think that's a defect. That's normal with almost all a/v gear. You can't turn up the volume to almost max and not hear something.

Do you hear the hum when actually playing DVDs at normal listening level?

Originally Posted by schnurmac

Not at normal level no as in normal its different for each input.
volume levels:
A1 HDMI set to auto usualy at -35 to -25
A1 Mutichannnel at -15 to -10
A1 Coax bitstrem at -35 to -25
H20 HDMI at -35 to -25
I nottice it more with analog.
But when Im watching a great action flick I like to crank it.
The sub is what I hear. But I have stated before. I can hear alot of unwanted hissing pops, ticks, and hum from all speakers when I get within a few feet from them.

The fact is there should be no hum from sub. Friend of mine has no hum with his A1. He uses analog and has a yammy with no HDMI. His sub is silent like its not even on.
Thats how it should be IMOP.