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Panasonic DMP-BD10A "LFE BUG"

by dsskid / April 27, 2008 11:41 PM PDT

I have a Panasonic TH58PZ700U plasma, DMP-BD10AK blu ray player, and Sony STR-DE875 receiver, and SA8300HDVR. I've hooked up both the cablebox and blu ray player directly to the plasma via HDMI. Since I have an older AV receiver (5.1, non-HDMI), the blu ray is hooked up to the AVR by both digital coax and multi-channel rca. I've set the codecs to: DTS - bitstream. DD - bitstream, TrueDD and DTS-HD to PCM.

When I play standard DVD's and set the AVR imput to digital coax, the sound blows you out of your seat. However, when I play blu rays, and set the AVR to multichannel, and set the blu ray player to BD video, HDMI audio, and downconversion to off (as directed on AVS Forum), the sound is not as good as when I play standard dvds, even though the BD10A decodes TrueDD and DTS-DH.

I know that the BD10A suffers from the LFE issue where HDMI, digital coax, and optical outputs results in a 5% decrease in LFE to the subwoofer, but analogs are supposedly uneffected. Anyone else experiencing this? It disheartening that I'm receiving less "Wow" sound quality with blu ray discs than SD DVD discs.

I've thought about upgrading to a newer AVR with an HDMI imput, that could also process TrueDD and DTS-HD, but it since the BD10A has the LFE bug over HDMI, it seems like it would be fruitless. Any thoughts on what to do?

Thanks

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by jostenmeat / April 28, 2008 4:36 AM PDT

There hasn't been firmware released to solve this yet?

why is HDMI set to On when you don't use it? Is this what you're supposed to do when using RCAs?

Another thought is that I found when in my early comparisons of lossless vs lossy, that the lossy sounds louder at any typical setting. To do a real comparison, you might have to level match. What Im saying is make sure its the volume difference that makes you think its better.

If you are happy with your receiver otherwise, I might wait to upgrade the BD player. Yours can't handle MA, so might as well get that next purchase.

the only thing with using RCA's is that there often might have issues with bass mgmt, and that you will not be able to matrix into 7.1... but if you use 5.1 this does not matter.

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DMP-BD10A "LFE" Bug
by dsskid / April 28, 2008 4:43 AM PDT
In reply to: -

They did a firmware update for the BD30, but not the BD10A.

HDMI "video" is set to on so I can receive a picture, because HDMI connects the blu ray to my plasma. HDMI "audio" is set to off, so that the signal is sent via analogs. My receiver is only 5.1, so 7.1 doesn't matter at this point. If I upgraded my receiver, then I'd have to also upgrade the blu ray, which isn't in the budget at this time, but eventually. I was looking for a solution in the meantime.

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im sorry about that
by jostenmeat / April 28, 2008 4:54 AM PDT
In reply to: DMP-BD10A "LFE" Bug

FWIW, many players of all kinds have LFE issues with analogs, not just Bd players. I think of sacd, dvda, or just anything. Is there any setting in the player that allows you to "re-boost" LFE?

turning up the sub's gain is not the ideal solution, since you are also increasing summed bass. (I assume you do not run your speakers as full range). Well, even if not a solution, you could experiment with that and see if you like it at all.

bass mgmt is little understood by most, and the abilities given to us in most components are only the extreme basic.

sorry for your troubles.

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