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DAC 3 weeks 5 days ago #55986

  • bmosesso
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I am considering purchasing a SHD to use with my powered speakers. I want the SHD for the analog input for my TT.
Since the speakers have a built in DAC am I able to bypass the DAC in the SHD?
Trying to keep less links in the chain for sound quality.
Thanks in advance for any direction.
 

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DAC 3 weeks 5 days ago #55987

  • gbr
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yes, this is possible. From the list of hardware features:
  • Outputs: 4 x digital (SPDIF out), 4 x analog out (Balanced XLR, unbalanced RCA)
So if you can use the SPDIF out to connect the speakers, this works. 
 
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DAC 3 weeks 5 days ago #55988

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So to confirm if I use the SPDIF digital out to speakers it will by pass the SHD internal DAC?

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DAC 3 weeks 4 days ago #55999

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I own the SHD Studio (that comes without the analog in- and outputs). But as far as I have read and understand the digitals outs of the SHD do offer the same signal as the analog outputs. Everything else would be very astonishing.

You can check the manuals / datasheets www.minidsp.com/support/downloads

"Three digital inputs, two analog inputs and USB Audio enable the SHD to fit right into any modern audio system, while processed outputs are available as unbalanced and balanced analog as well as digital."

I understand "processed outputs" as the dirac processed signal is passed to all outputs.

Also: "8. Digital outputs. Connect external DACs or other digital equipment using RCA SPDIF. These outputs each carry a stereo signal. The data format is 24-bit 96 kHz. Connected equipment must therefore be able to accept a 24-bit 96 kHz input signal.Note: if using two different DACs, you may need to adjust the time delay on the output channels accordingly."
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DAC 3 weeks 4 days ago #56003

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So to confirm if I use the SPDIF digital out to speakers it will by pass the SHD internal DAC?

I'm certain the answer is 'yes', as it would be crazy to do anything else.
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DAC 3 weeks 3 days ago #56023

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The answer to the OP is “yes.”

You can manipulate the signal however you want in the digital domain - PEQ, crossover, Dirac, matrix, etc. - then maintain the digital signal on the way out. The only thing that is happening, I believe, is that the SHD is working internally at 32bit/92khz but is outputting via SPDIF at 24/96. No big deal there. It would work great for bringing in a TT analog signal, running it through DSP and then sending it digitally out to the active speakers.

The only question is whether the DAC in your speakers is any better than the SHD’s which isn’t state of the art but is objectively very good. If not, run the analogs out of the SHD.

 

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DAC 3 weeks 3 days ago #56024

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...I believe, is that the SHD is working internally at 32bit/92khz but is outputting via SPDIF at 24/96.
 

I suspect this is what you meant but internally the SHD uses a 96 kHz sample frequency, not 92 kHz.

As regards whether it's better to use the DAC in the speakers or not will in part depend whether the speakers have a digital crossover or not. If they do then an analogue input will pass through an ADC anyway so it would arguably be better to use a digital input. As it happens I've recently bought some Edifier S3000 Pro speakers to experiment with, and I'll likely use the digital input for exactly this reason.
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