Question M-Dac MultiChannel Pasthrough?

Discussion in 'Hi-Fi Stereo Systems & Separates' started by pevz, May 1, 2018.

  1. pevz

    pevz
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    Hi all,

    Can anybody tell me if the Audiolab M-Dac will downmix a multichannel signal received through the optical inputs to stereo via the analogue outputs, whilst simultaneously passing through the untouched multichannel signal from the digital output?

    I recently upgraded to a 4K TV on which we are using the onboard apps, plus SkyQ, but the lack of analogue outputs means we cant listen to those inputs in the my AVR Zone 2.
     
  2. dollag

    dollag
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    I’m not sure but doubt it. You can send an lpcm signal from the tv via optical. What tv do you have?

    That’s what I do with my sonica as only 2 channel playback
     
  3. pevz

    pevz
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    Thanks Dollag.

    I have a Sony A1... I will check tonight and see if you can simultaneously send multichannel via ARC and stereo via optical, but I doubt it will do that.

    Was ideally was looking for a dac which I could plug all my digital multichannel and stereo sources into and get both digital multichannel AND analogue stereo out the other end.
     
  4. dollag

    dollag
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    whats your set up?

    what are you sending arc to?

    Your not going to be able to send both multi channel and 2.0 simultaneously. You will need an avr for that i cannot think of another way but i may be wrong
     
  5. Joe Fernand

    Joe Fernand
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    'Was ideally was looking for a dac which I could plug all my digital multichannel and stereo sources into and get both digital multichannel AND analogue stereo out the other end' - that would require some expensive licensing to cover the various formats your Source devices may support.

    CYP have a unit with Optical passthru for DD/DTS 5.1 plus down conversion to 2RCA - cost is around £190.

    Joe
     
  6. pevz

    pevz
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    Sorry maybe I’m not being very clear...

    I have a Denon AVR-X4200 with a 5.1 setup in the lounge, I also have the zone 2 kitchen setup.

    The Denon is being fed SkyQ, Blu-Ray and PC via HDMI, and the TV sound via the ARC.

    I also have an Audiolab Q-DAC being fed Sonos Connect via coax and the PC audio via USB... this is connected to one of the analogue inputs of the AVR.

    I also have an Apple TV 4K connected directly to the TV.

    I was looking to upgrade the Q-Dac to give me the option of having multi-channel in the main zone and stereo in zone 2.

    I know the OPPO UDP 205 could be a solution, but that seems a crazy step up!
     
  7. pevz

    pevz
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    Thanks Joe, I think that’s a winner.
     
  8. Joe Fernand

    Joe Fernand
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    Licensing costs from Dolby and DTS for the various multi-channel Formats is what makes the pricing of these 'low volume' devices so high - finding one which supports ARC and multi-channel HD is going to be nigh on impossible.

    We have used and supplied various CYP units for all manner of 'fix's'.

    Was thinking your other option is going to be looking for a higher Spec AVR which handles digital and analogue source down-mix to Zone 2!

    Joe
     
  9. Ken T

    Ken T
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    No it won't.
    It only accepts stereo PCM, and outputs the same.
    Any thing else will be silent.
     

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