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Upgraded 2X4 HD to DDRC-24 issues 8 months 4 weeks ago #53472

  • gordonepalmer
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I've had a Minidsp 2X4HD for ages and love it.
It sits between my Marantz AV7705 and 3 SVS PB-3000 subs.
I've used it to time align and EQ the subs (Audyssey EQ off) and was happy.

I have a Arcam AV20 in another room which has Dirac so I'm used to that as well.

I thought I would upgrade the 2X4 to DDRC-24 and add my centre channel to the mix
So Input 1 - Subwoofer Input 2 Centre Channel
Outputs 1,2,3 to ind subs
Output 4 to Emotiva Power amp.

Pre installing Dirac, Audyssey set the subs at roughly the same distance as the fronts.
Having rerun Audyssey to reset the timing for all the channels I notice it has set both Sub and Centre to the max it allows (6m more than nearest speaker (this is a Audyssey limitation)

Checking with REW its miles out. Centre channel is 30-50ms different to Fronts! And Sub is 25-35ms. Dirac on/off makes about 3ms difference.

Am I missing something simple in my setup?
I can't believe adding Dirac should produce that much latency to the chain?

Another issue - loading a filter to the DSP sets the master volume to -43.5 and I have to change it back to 0 every time.

Any suggestions please?

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Upgraded 2X4 HD to DDRC-24 issues 8 months 3 weeks ago #53520

  • Ultrasonic
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Any suggestions please?


Contact support. The first thing to do is to establish if the 2-channel version of Dirac Live you now have is suitable for your intended application. I fear it may not be...

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Upgraded 2X4 HD to DDRC-24 issues 8 months 3 weeks ago #53523

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Thanks

On reflection I think it's not going to work. Applying Dirac to only some of the channels is the issue. Latency is irrelevant if all channels are running through Dirac.
Downgraded the unit firmware back to 2X4 and it works as expected.
Annoyed I've wasted $199 though.

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Upgraded 2X4 HD to DDRC-24 issues 8 months 3 weeks ago #53524

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Thanks

On reflection I think it's not going to work. Applying Dirac to only some of the channels is the issue. Latency is irrelevant if all channels are running through Dirac.
Downgraded the unit firmware back to 2X4 and it works as expected.
Annoyed I've wasted $199 though.


Contact support to see if you may be able to get a refund.

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