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miniDSP SHD integration

Ever since I migrated from AVR preamp out with room correction to a separate preamp, I have been missing room correction, especially bass management. I have considered the SHD, but wanted to avoid the ADA, and the potential quality of the DAC built into the SHD. I recently plugged my turntable back into my AVR, and the bass management room correction was significant, ergo my renewed interest. My system:

Pro-ject 1Xpression carbon classic with Hana ML cart

Rega Aria phono stage

Rogue RP-1 pre with NOS Telefunkon medical, Siemens nickel plate & Brimar CV4003 NOS tubes (rolling)

LSA Warp 1 amp

KEF R11 speakers

Rythmic F12SE sub

Aurender N150 streamer

Chord Qutest DAC

My question is how do best integrate the SHD (or other/better) room correction device into my system. My ideal is to continue to use both my preamp and DAC. So, in the case of streaming: N150 >SHD>Qutest>Preamp>Amp>Speakers

Vinyl: TT>Aria>SHD>Qutest>Preamp

This would avoid the SHD internal DAC, but how would it do bass management? In this scenario, I believe the sub would need to be plugged into the preamp for volume control. Perhaps this is true for any scenario when a separate preamp is used?

Does the SHD/Dirac have the ability to perform bass management without using the SHD crossovers? IE: Full range to both speakers & sub with the appropriate adjustments? Any other products you would recommend? Any other recommended connections? 

Thanks!

128x128signaforce
erik_squires
16,057 posts
 

I think the easiest thing for you is going to be to put the miniDSP right before the sub. That’s where most of your bass issues will occur anyway, and miniDSP is pretty transparent, especially for subwoofers.

Plug the ports on the back of your main speakers, this will make integration easier and lower the distortion and bass output.

I’ve had a great deal of success with this alone.

If you wanted to take this 1 step further, put a capacitor in line with your amp. This will give you a 6 db/octave high pass filter. Use about 0.04uF for an 80 Hz high pass filter.

Of course, if you are experimenting, at each of these steps you’ll need to remeasure.

Almost forgot:  Seek out the AM Acoustics room mode simulator and try to keep your sub, speakers and listening location outside the lowest room modes.

signaforce's avatar
signaforce OP
179 posts
 

Ok, to be clear you are talking keeping everything as is except connect the miniDSP to the sub out on my preamp, then to the sub to control low pass and subwoofer room control. 
Then use a pair of capacitors on the speaker out to control high pass, without room correction. Interesting!


 

fthompson251's avatar
fthompson251
375 posts
 

There is also the Mini DSP Studio SHD. Streamer > Studio > DAC> preamp. You can then do Dirac live room correction. Contact Deer Creek Audio for guidance on this.

 

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