Would you recommend upgrading from the miniDSP 2x4 HD to the DDRC-24?

[musica]

I listen in nearfield, and if I switch from the miniDSP 2x4 HD to the DDRC-24, I would have Dirac available for acoustic corrections. Would I benefit from it? I have a 2.1 system and I only listen to music?

 

[staticV3]

Dirac is generally considered an upgrade.

If it's worth the cost, I cannot decide.

Btw, the DDRC-24 is a simple firmware upgrade for your 2x4HD. They're the same device underneath.

 

[sphykik]

The 2x4HD does not have automatic room correction capabilities in its base firmware, so to optimize your system you would need to use a measurement mic, take measurements with something like REW, and generate filters to enter manually.

If that all sounds like too much trouble, Dirac can automate the measurement and correction steps for you.

As to whether your setup will benefit greatly, that depends on your gear and room.

If you have access to a measurement microphone, I would take measurements with REW to determine where you stand--then optimize if necessary.

 

[Mort]

I assume you have a subwoofer? You will probably find the bass is cleaner and balanced with DiracLive.

 

[ReDFoX]

Dirac Live was an excellent addition to manual tuning via MMM measurements. Aside from delay problems (Dirac can incorrectly set delay, but you can disable that) it works perfectly for it's price.
Yes, it's not a Trinnov, but you can specify region of correction and create your own target curves which is more than enough for advanced home users...

 

[Theriverlethe]

I listen in nearfield, and if I switch from the miniDSP 2x4 HD to the DDRC-24, I would have Dirac available for acoustic corrections. Would I benefit from it? I have a 2.1 system and I only listen to music?

Whether you'll hear a meaningful improvement depends on your speakers and room acoustics. I'm not convinced of the audibility of Dirac's "time domain" claims, but it's probably the best consumer-level automatic EQ software. You may be able to do just as well with a MiniDSP and REW's AutoEQ.

 

[Theriverlethe]

Dirac Live was an excellent addition to manual tuning via MMM measurements. Aside from delay problems (Dirac can incorrectly set delay, but you can disable that) it works perfectly for it's price.
Yes, it's not a Trinnov, but you can specify region of correction and create your own target curves which is more than enough for advanced home users...

I'd be careful second-guessing Dirac's delay settings. Isn't Dirac delaying difference frequencies at different times? This can only work by adding delay to the total system.

 

[musica]

What are the differences between REW's AutoEQ and Dirac in terms of acoustic correction?

 

[Theriverlethe]

What are the differences between REW's AutoEQ and Dirac in terms of acoustic correction?

AutoEQ generates basic PEQ filters, whereas Dirac claims to fix issues in the time as well as frequency domain. Dirac's approach can certainly help with, eg., integrating subwoofers, but I think you need a DLBC license for that to work well. This of course works to correct the frequency response throughout the crossover region when the subwoofers and speakers are in phase. As far as phase corrections throughout the whole frequency range, I'm not aware of any research to support the idea that this makes an audible improvement.

 

[ReDFoX]

I'd be careful second-guessing Dirac's delay settings. Isn't Dirac delaying difference frequencies at different times? This can only work by adding delay to the total system.

Dirac can easily set delay incorrectly, especially in the nearfield, where even 0.04 ms makes a difference. I disable delay/gain compensation and set up delay by moving monitors and observing RTA window in REW in MLP.

 

[musica]

I have Dirac Live on my PC, how can I use it with the miniDSP 2x4 HD?

 

[aedagnino]

I have Dirac Live on my PC, how can I use it with the miniDSP 2x4 HD?

Use the MiniDSP as the DAC connected to the PC. If you're using the miniDSP for crossover duties, set that first. Then once in place, run Dirac on the PC.

 

[musica]

I switched to the DDRC-24, how do I measure the sub with Dirac to integrate it with the satellites?

 

[staticV3]

I switched to the DDRC-24, how do I measure the sub with Dirac to integrate it with the satellites?

See here: https://www.minidsp.com/applications/subwoofer-tuning/sub-integration-dirac

 

[musica]

The DDRC-24 is connected to the NAD via analog pre-out and main-in. When I use Dirac, the volume control on the NAD has no effect on the signal emitted by Dirac during calibration. Why?

 

[staticV3]

When I use Dirac, the volume control on the NAD has no effect on the signal emitted by Dirac during calibration. Why?

The signal is generated by the DDRC-24.

 

[musica]

If during the Dirac calibration I set the DDRC-24 volume to -40 dB, after the calibration is finished, can I set the DDRC-24 volume back to 0 dB and control everything with the NAD’s volume knob? Is the calibration done at -40 dB still valid or not?

 

[staticV3]

If during the Dirac calibration I set the DDRC-24 volume to -40 dB, after the calibration is finished, can I set the DDRC-24 volume back to 0 dB and control everything with the NAD’s volume knob? Is the calibration done at -40 dB still valid or not?

As long as SNR while measuring is high enough (no error message), yes.

 

[musica]

This is the graph after the measurements, what should I do?

 

[musica]

This is the graph after the measurements, what should I do?
"Or rather, what would you do?"