View Full Version : Outboard proce$$or or receiver-as-processor only??


kitchener
03-11-07, 11:27 PM
I'm refinishing my family room and now that it's nearing completion, I'm finally getting to seriously contemplate how I'd like to finish the re-build of my old pro logic HT system into a high def system.

I forsee three (still to be purchased) high def sources: high def tivo/sat receiver, high def dvd, and a high def game machine for the kids. The TV will be a 1080p large screen, to be purchased probably in the fall as 1080p costs come down in the LCD/plasma platforms.

The biggest conumdrum I have is what to do in the processor department.

Where high end audio is concerned, I'm a big believer in getting more for less by taking advantage of audiophile nervosa and turning to the pre-owned world, but I'm wondering if I can get away with it with the processing. BTW, this will be a HT-only system -- I have a completely separate 2-channel system in my living room.

The amplification and speakers are done. I'm using 5 200w B&K monoblocks to drive 5 NHT VS-2s. The VS-2 was my old center channel before I broke my system into two systems (as above) and I liked the VS-2 so much I decided to stick with the VS-2 all the way around in the HT system. I still need to get a sub, but that will be an easier decision -- $1k should get me all the pre-owned sub I need (room needs and personal tastes will determine which).

What worries me in the processing deparment is the HDMI aspect. I take it it'd be a lot cleaner to use a processor/receiver with 3 HDMI inputs and at least one HDMI output. But doing that, at least where a processor is concerned, sounds like big bucks, as it'd have to be a newer (probably new) processor, as opposed to a Lexicon DC-1, say. True? In this scenario, how much of a processor performance hit would I take with a mid-fi receiver-as-processor-only with the amplification farmed out to the B&Ks?

Could I find a sub-$1k outboard processor (used) that would give me my multiple hdmi inputs? That's the rub, I want to stay under $1k in a processor, but of all the components in a HT system, this is the area that changes the most each year.

Put me on the right track

sethk
03-15-07, 06:18 PM
HDMI can pass audio over the wire - in fact with HD-DVD and BD, the only way to get uncompressed mulitchannel digital audio is via a newer HDMI revision.

There aren't too many pre-processors that can do uncompressed HDMI audio (the Anthem D2 can, I believe, but it's quite a bit above your 1K budget.)

So if HDMI video / audio is part of the solution you're looking for, and 1K is your budget, I think you're looking at a receiver for sure. This may change by the end of this year, but I don't know of anything on the horizon.

rplotkin
03-15-07, 08:47 PM
You may be able to find a Lumagen HDQ for a few hundred above $1000 used (or get a good deal here from AVS) (has 4 DVI inputs). The VP20 might also be an option (has 3 HDMI inputs); Buy It Now's on eBay are just a hair over $1000, so I expect that AVS, or other forum members, might have similarly good or even better deals. And I believe that there is/was a deal from AVS on the VP30, which has 4 HDMI inputs. Between the Lumagen and the DVDO, I'd push you to get the Lumagen. Even though you'd need DVI->HDMI cables, the Lumagen does 1080i deinterlacing at a low low price.

This HDMI path you want with HD multichannel audio may not be worth it right now; if you're player supports HD audio and has the analog outputs (and your receiver has multichannel analog inputs), you'll still be in HD-audio bliss. AND HD video bliss.

kitchener
03-17-07, 12:06 AM
Thanks for the direction. Sounds like there's some ways to go, but also some reasons to continue dragging my feet on a pre-pro just a while longer.

Would I need multi-channel inputs with HD audio (instead of coaxial digital)?

rplotkin
03-17-07, 02:37 AM
Yes. Coax digital is the same as optical, and won't pass the new high resolution audio formats. You can only get those by decoding in the player and outputting to multi-channel analog, or by sending via hdmi to a pre-pro or receiver that supports multi-channel PCM over HDMI.

(previously, I stated that the pre-pro or receiver had to support the specific high resolution codec being used, but that was incorrect).

louthewiz
03-20-07, 12:14 AM
http://www.ehomeupgrade.com/entry/3240/gefen_set_to

RichB
03-21-07, 08:28 AM
Yes. Coax digital is the same as optical, and won't pass the new high resolution audio formats. You can only get those by decoding in the player and outputting to multi-channel analog, or by sending via hdmi to a pre-pro or receiver that supports the codec.

Just to clarify, Most HD players also put out multi-channel PCM over HDMI which does not require the receiver to decode DTS-HD, DD+, DD-TrueHD etc.

- Rich

rplotkin
03-22-07, 08:45 AM
Hey Rich,

Thanks. I misunderstood that until I read your note and then read more about it. So *any* HDMI receiver that supports multi-channel audio over HDMI will be able to play the high resolution audio from these players. I've edited my statement above to reflect this.

RichB
03-22-07, 10:50 AM
Hey Rich,

Thanks. I misunderstood that until I read your note and then read more about it. So *any* HDMI receiver that supports multi-channel audio over HDMI will be able to play the high resolution audio from these players. I've edited my statement above to reflect this.

Any player that outputs multi-channel linear PCM work fine with any preamp/receiver that can accept it. I believe that HDMI 1.1 should be sufficient.

The only advantage of a Preamp/Receiver doing the decode is that it may do a better job and if you multiple players and you may be able to have less expensive options.

I have often wondered about *new* internet content though. If there were say new commentaries that could be streamed online, I assume that the player would have to decode the HD format, add the new audio, then re-encode it. Or perhaps, in this case, it would make sense to leave it as PCM.

- Rich