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Quadraphonic from laptop using an AVR?

post #1 of 24
Thread Starter 

Does anyone know if a 5.1 or 7.1 AV receiver would be a good way to get Quadraphonic to a Marantz 4400 or 4240? I have a laptop and this is about the only way I can think of to get 'quality' quad out of it. I have several Pink Floyd's in Discreet Quad FLAC that I'd love to hear in it's full glory. I'm looking into an Onkyo TX-NR717 7.1 AVR or an TX-NR509 5.1 AVR. if I use the pre-outs from one of those and send it to the Quad Marantz would it send the correct signal to the Marantz? I've tried splitting the two fronts and rears from the FLAC file into separate stereo tracks playing the front and rear in seperate Foobar instances and using two DAC's to the Quad Marantz but that does not work... only the front's come out (and yes the power mode switch is set to 4-Channel) The speakers I am using are KEF 103/4 and B&O S45's (same Ohms) and I know I could hook up just 4 speakers to the Onkyo but I am not really wanting it for audio besides sending Quad to my Quad receiver, I want the Onkyo mainly for HDMI and composite Video. 

Any help/info would be appreciated. I'd rather not use the other option which is that crap X-Fi USB 5.1 card. I've had one before and it really does not do anything its all slow software bloat. 

post #2 of 24

Funny thing, I couldn't actually locate the quad files, or the 5.1 remix for that matter.  All the FLAC I could find was stereo. But assuming you have them, you need a soundcard with at least 4 channels, there are many.  I can play multichannel mixes out of VLC, which has a track assignment function under the Audio menu.  

post #3 of 24
Thread Starter 
Well my laptop has HDMI and that's the only way to get 5.1 out of it. If I hook it up to a 5.1/7.1 AVR I should be able to get Quad right? The only one with the Pre-outs on the Onkyo is the TX-NR717 so I could hook the F/R pre-outs into the Marantz but I need to know if it will decode it correctly meaning will it sound right since its coming from a 7.1 AVR and the other speakers aren't being used?

Yes I have a number of them in Discreet Quad FLAC and the 5.1 mixes of WYWH and DSOTM in FLAC/SACD-R.
post #4 of 24
First, I would think that if you can output those four channels as PCM (or LPCM) over HDMI using left, right, left surround, and rear surround, then a receiver should accept them just as they are and output it.

Might be a little more, but why not get a processor? http://shop.emotiva.com/collections/processors/products/umc200. That way for the money, you are not paying for the amplification in the receivers, but instead getting a device designed to hook up to external amps. Not only that, but you can contact Emotiva and I'm sure that they can tell you if it will accomplish what you want smily_headphones1.gif
post #5 of 24
Quote:
Originally Posted by harrinj View Post

Well my laptop has HDMI and that's the only way to get 5.1 out of it. If I hook it up to a 5.1/7.1 AVR I should be able to get Quad right? The only one with the Pre-outs on the Onkyo is the TX-NR717 so I could hook the F/R pre-outs into the Marantz but I need to know if it will decode it correctly meaning will it sound right since its coming from a 7.1 AVR and the other speakers aren't being used?

Yes I have a number of them in Discreet Quad FLAC and the 5.1 mixes of WYWH and DSOTM in FLAC/SACD-R.

Getting 5.1 or quad out of HDMI is more of a software issue.  VLC seems to know if you've got a multichannel audio device connected via HDMI, but there are several settings to play with, and only one works, sorry I don't remember which.  I find the entire process a fairly big pain, so I don't do it much.  I've been more successful using a multichannel sound card connected by USB or Firewire.  HDMI is a fairly sizable mess.

Quote:
Originally Posted by cel4145 View Post

First, I would think that if you can output those four channels as PCM (or LPCM) over HDMI using left, right, left surround, and rear surround, then a receiver should accept them just as they are and output it.
Might be a little more, but why not get a processor? http://shop.emotiva.com/collections/processors/products/umc200. That way for the money, you are not paying for the amplification in the receivers, but instead getting a device designed to hook up to external amps. Not only that, but you can contact Emotiva and I'm sure that they can tell you if it will accomplish what you want smily_headphones1.gif

Yeah, PCM/LPCM over HDMI is the issue.  If your playback software is HDMI device savvy, it could work, but it's not exactly going to be plug and play. More like plug and play and play and play and play. 

 

Not sure why you'd want to use the Marantz at all, but your call.  Buying a processor to do this is interesting, but unless you already have decent power amps, probably the wrong choice.

post #6 of 24
Quote:
Originally Posted by jaddie View Post

Not sure why you'd want to use the Marantz at all, but your call.  

Couldn't you tell from the Marantz models and the speakers? He's trying to reproduce the vintage sound of when they were recorded. Although those Kef's seems a little new for that, still an admirable project biggrin.gif
post #7 of 24
Thread Starter 
Quote:
Originally Posted by cel4145 View Post


Couldn't you tell from the Marantz models and the speakers? He's trying to reproduce the vintage sound of when they were recorded. Although those Kef's seems a little new for that, still an admirable project biggrin.gif

yes! The Kef's and B&O's are all I have though. I wish I had two more B&O's! 

post #8 of 24
Thread Starter 
Quote:
Originally Posted by jaddie View Post

Getting 5.1 or quad out of HDMI is more of a software issue.  VLC seems to know if you've got a multichannel audio device connected via HDMI, but there are several settings to play with, and only one works, sorry I don't remember which.  I find the entire process a fairly big pain, so I don't do it much.  I've been more successful using a multichannel sound card connected by USB or Firewire.  HDMI is a fairly sizable mess.

Yeah, PCM/LPCM over HDMI is the issue.  If your playback software is HDMI device savvy, it could work, but it's not exactly going to be plug and play. More like plug and play and play and play and play. 

 

Not sure why you'd want to use the Marantz at all, but your call.  Buying a processor to do this is interesting, but unless you already have decent power amps, probably the wrong choice.

Wouldn't Foobar2000 be able to do it? my GPU is a Geforce 560M laptop is an Asus G74SX. all I can find on the USB side on amazon is that crap X-Fi 5.1 and like I said I had one before (not sure if it was the 5.1 or not) but it was total crap, it was all slow bad software and it was horrible. In fact if I remember correctly, without all the nasty software and just the unit that did nothing, the output only went up to CD quality, with the awful software it went up to 24/96. 

post #9 of 24
Quote:
Originally Posted by harrinj View Post

yes! The Kef's and B&O's are all I have though. I wish I had two more B&O's! 

Yeah. That would be a lot better so that all four speakers timbre match.

Do you have a friend with a home theater receiver? If so, why not see if you can't take your laptop over and do some experimentation. smily_headphones1.gif
post #10 of 24
Quote:
Originally Posted by cel4145 View Post


Yeah. That would be a lot better so that all four speakers timbre match.

Do you have a friend with a home theater receiver? If so, why not see if you can't take your laptop over and do some experimentation. smily_headphones1.gif

For that authentic vintage sound you need to take the budget for a good stereo and make it work for quad.  So 4 speakers for the price of 2. And you need to sit exactly dead center.

 

Stereo's "sweet spots" are along a line extending form between the speakers into the room. Fairly critical too, get off the center line, and the mix clusters around the speaker you're closest to. Quad's "sweet spot" (singular) is a point exactly in the center of all speakers, and it's even more critical than stereo, you have to be right on it.  The critical sweet spot dead center is one of the several reasons fro Quad's failure.

 

If you don't mind the 5.1 remix, 5.1's sweet spots are basically all over the room, extremely non-critical.  

post #11 of 24
Thread Starter 
Quote:
Originally Posted by jaddie View Post

For that authentic vintage sound you need to take the budget for a good stereo and make it work for quad.  So 4 speakers for the price of 2. And you need to sit exactly dead center.

 

Stereo's "sweet spots" are along a line extending form between the speakers into the room. Fairly critical too, get off the center line, and the mix clusters around the speaker you're closest to. Quad's "sweet spot" (singular) is a point exactly in the center of all speakers, and it's even more critical than stereo, you have to be right on it.  The critical sweet spot dead center is one of the several reasons fro Quad's failure.

 

If you don't mind the 5.1 remix, 5.1's sweet spots are basically all over the room, extremely non-critical.  

Yeah I was thinking of just a 5.1 setup but that means I need to buy more speakers. 

post #12 of 24
Find three Klispch Heresey 1s and put them across the front for good vintage sound biggrin.gif
post #13 of 24
Quote:
Originally Posted by harrinj View Post

Yeah I was thinking of just a 5.1 setup but that means I need to buy more speakers. 

...worth it.

Quote:
Originally Posted by cel4145 View Post

Find three Klispch Heresey 1s and put them across the front for good vintage sound biggrin.gif

Yeah, right.  If you have the room you won't have the money, or vise-versa.  What you won't need is power, though.

post #14 of 24
Quote:
Originally Posted by jaddie View Post

. . . What you won't need is power, though.

I know. In a small room, a Dayton t-amp could make your ears bleed with those (hehe)
post #15 of 24
Thread Starter 
Quote:
Originally Posted by jaddie View Post

...worth it.

Yeah, right.  If you have the room you won't have the money, or vise-versa.  What you won't need is power, though.

Yeah I know about 5.1... haha the problem is money. I'm already buying a Marantz 4400 tomorrow. I have a 4240 and I tried feeding two NuForce DAC's into it one playing the rear channels into the rear inputs and the other playing the front into the front inputs, the 4240's Power-mode switch is in the 4 channel position (for future people if you read this NEVER change the power mode switch on the back of a Marantz Quad unit while it is powered ON) and nothing comes out of the rear... I am not sure if because it is two sources and that the Marantz is supposed to decode from a proper source and does not know what to do with it so it just plays the front or what is going on. my 4240 does not have the SQ-Decoder but that should not make a difference because it's not Matrixed/Phono right? the 4400 I am getting includes the SQ adapter. 

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