Imaging problem, or lack thereof...any ideas


Not sure what/where the problem is, so I'm not really too sure where to post this, but here goes. I'm using a PS3 to send HDMI to my onkyo 805 receiver, which is playing the music in "direct" mode and sending the pre out to a musical fidelity A5 integrated amp (HT bypass input on A5). When I play music this way I get a great image, but of course I'm using the preamp section of the onkyo receiver so it's lacking a lot of power when compared with the A5's preamp section, especially in the lower freqs.

When I send optical out of the PS3 (2 ch 44.1 khz) to my musical fidelity A3 24 DAC and then to an input on the A5 integrated, I totally lose any image. All sound is put out of both speakers simultaneously and all sound is localized at the center. Overall the sound is much better/open/powerful coming from the preamp section of the A5, but I just can't go without an image...

I also have the same problem when sending 2ch analog out of the PS3. No distinction in the 2 channels.

I don't know if it's the player (doesn't seem like it should be, because it separates the 2 channels when playing out HDMI), or the MF A5 integrated (which also doesn't seem like it should be because it's distinguishing channels fine when received through the HT Bypass input from the receiver). Anybody ever have this problem? If so, how did you solve it?

After typing all that it seems like this might be a little confusing :D
joeshow750
Other than re-checking the configs & connections, only this... go to Best Buy and get a new one... see if it does the same thing or not, then take it back.... or as you said, you might get another one to replace it, just keep the new one.

That ought to settle it then and there as to who's the real culprit. The PS3 OR the DAC.

having other similar items on hand for situations like this is a great thing for finding out what's up with the devices in one's rig..

Good Luck
I'm not sure what I have to say has any relevance, but I run a coax signal from my cd player into first a Genesis Digital Time Lens, then to my Musical Fidelity A3/24 dac, then to a Sonic Euphoria PLC. I run a separate two-channel system with my multi-channel system. Two channel amp and afore-mentioned PLC, with pre-pro and multi-channel amps for surround. Sonic Euphoria has HT bypass as well for integration. Time Lens, dac, uni-player, and two-channel amp highly modded by the way.

Point being, my digtal front end never disappoints. I am of the opinion that coax is a better option than Toslink for transferring digital signals. This is just my opinion, I don't claim to be an expert, but my digital is very satisfying.

I don't know if this is in any way helpful, but there was a time when things didn't sound so good, but this has optimized both stereo and multi-channel for me. FWIW

Regards, Dan
Jim, I checked all the connections, and everything is set up correctly.

Dan, I'm not saying the sound isn't good. I mean, the sound is excellent. I'm sure a lot of it has to do with the speakers (Tyler Acoustics Linbrook Sig System towers) It's only the lack of image that I get due to the identical sound being put out on both channels simultaneously. Now I will ask: since you're using the same DAC, do you have a good separation of channels, definite image, and soundstage? ie. bass guitar left stage, singer center stage, keyboard right stage, etc. etc.? Because from my testing it seems that the DAC is mixing 2ch input into a single channel and outputting on both left and right.

So I think I got this figured out after some testing and swaptronics. I think my musicaly isn't separating the 2ch's. I tried running my optical connection, in 2ch format, from the Playstation 3 to the 805. I got perfect separation of channels. I also hooked up my xbox 360 using optical 2ch format to the 805 and also got good separation of the channels. Using both the PS3 and xbox 360 2ch optical out to go through the musical fidelity DAC, I lost any separation of channels and only have an identical signal on both channels. So unless for some reason the A5 integrated pre stage mixes the left and right inputs on all but the HT bypass input--then it has to be the DAC that is mixing the 2ch signal into a mono signal and sending it out on both left and right channels.
Joe, I really don't think it's your dac. In my system, imaging is amazing. Speakers seem to disappear. Can you try running a coax digital signal from your digital source to the dac? I'm not at all familiar with the PS3, but I think an HDMI feed is more appropriate for home theater than for two channel music, but then, I may be living in the past. Let me know what you find out, ok?

Thanks, and good luck,
Dan
Does the DAC have a ch selection for making both 2 ch (stereo) output the same? Like the Lavry DA10 had a switch on it which allowed you to output the right ch to both speakers, or the left to both speakers, or combine to mono a stereo signal. I forget why they said that feature was in place and never used it... except to see if it worked. It did.

The Lavry had a dedicated sw. for this purpose... maybe the MF DAC has it included under a multi function button...?? or is the default unless changed.

BTW... for what it's worth, via my HDMI cables in stereo config, the sound is very good indeed, until I step way up in ic price tags. I do mean way up too. Just my experience.