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Quadraphonic from laptop using an AVR? - Page 2

post #16 of 24
Quote:
Originally Posted by harrinj View Post

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. 

If you connect your DAC outputs to the CD-4/Aux front and rear inputs, then set the selector to CD-4/Aux, and the MODE switch do DISCRETE, you should get all 4 channels.  Make sure you have audio coming out of all 4 DAC outputs.  You can swap the front/rear DACs to make sure.

 

 

Originally Posted by harrinj View Post

 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. 

The SQ decoder was optional, which is strange because there was far more SQ material available than discrete quad.   Apparently, Marantz felt their own "Vari-Matrix" decoder was good enough, and it probably was.  If you wanted to have all your Quad format bases covered, you'd have had to have at least 3 different decoders!  That's one of the other reasons Quad failed, market confusion.  The SQ decoder (or varimatrix) is not used for discrete 4 channel sources.  The CD-4 decoder would have been an external box.

 

Want the manual? get it here: http://www.hifiengine.com

post #17 of 24
Thread Starter 

All settings were correct on the 4240. I wonder if the Schiit Gungnir could do it in ASIO since it's got 4 RCA outputs

 

post #18 of 24

Can you get any sound at all out of the rear speakers?  Like if you plug in an RCA cable and touch the center conductor of the free end, does it buzz?

post #19 of 24
Thread Starter 
Quote:
Originally Posted by jaddie View Post

Can you get any sound at all out of the rear speakers?  Like if you plug in an RCA cable and touch the center conductor of the free end, does it buzz?

I didn't try, I will tonight when I clean my 4400. 

post #20 of 24

...just trying to help find the problem.  It could be the receiver's rear channels aren't working, or could be the sound card isn't spitting out audio.  Frankly, I'd put more money on the sound card, but who knows.

post #21 of 24
Thread Starter 

I am thinking about the Emotiva UMC-200 instead of an AVR. 

post #22 of 24
Quote:
Originally Posted by harrinj View Post

I am thinking about the Emotiva UMC-200 instead of an AVR. 

Ok. So the amps will be....?

 

"Thinking is the best way to travel".

post #23 of 24
Thread Starter 
I have lots of amps. Kenwood KR-7400, KA-7100 H/K 430,670 Marantz 4400, 2220B, 4240.
post #24 of 24
Thread Starter 

figured out why no sound was coming out the rear channels on my 4240, both fuses on the rear channel amp were blown! I bought it fully serviced at Audio Specialties in Portland, OR he is one of the very BEST vintage audio repairmen so I wonder why he didn't replace the fuses they were all original fuses too... he put LED's in and everything but must have missed the fuses I guess idk maybe he didn't test the rear. 

anyways my brother is going to give me his old 2001 TOTL 7.1 Onkyo receiver someday soon when he get's a new one so I decided to just get a Nuforce USB to SPDIF converter when that time comes and use Coax into the onkyo and use the pre-outs from the onkyo into my Marantz or just simply use the Onkyo for Quad and someday 5.1 or above, also surprisingly that 2001 Onkyo receivers DAC's support 24/192 native audio rate I didn't believe it at first but it does! I remember it was a ton of money he always got the best of the best... 

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