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Dirac without losing resolution

I currently have a dac (topping dx9) that is fed by my pc via usb.  I mainly just use tidal.  The dac is connected into an old sony qualia 007 that I just use the built in amp.  That is connected to a pair of audiomachina UM.  I also have a rel #31 sub.

The room is far from ideal with that setup. 12x12 by 10' high ceiling.

I wanted to explore dirac for some room correction.

the issue is that I can't seem to find a way to avoid limiting the resolution to 24/192 or even lower with most dirac endpoints.

They mention that you should put the dirac endpoint (something like one of the minidsp products) between the streamer and the dac.

I was planning on getting a hifirose 130 streamer (in place of the pc).

both the rs130 and dx9 can support up to 768pcm and 512dsd.

I was trying to see if there was a way to place the dirac endpoint on the output of the dx9 dac but not sure if any of the dirac endpoints accept an analog input and then be able to process the signal for the room correction.

jpmomo
mahler123
3,317 posts
 

I have a Minidsp.  Most recordings that I listen to are not above 24/192.

For the ones that are, I use a different input on the DAC than the one that connects to the MiniDSP.

Yes, I lose the DSP benefits with those recordings but they still sound amazing.  It makes me wonder if most of the benefits of DSP occur in the standard resolution ranges (which is where 99%) of all records live).  Perhaps the super high resolution records overcome my room limitations because they are just so open.  Can’t say.

  This doesn’t answer your question, but I recommend trying it for yourself 

oddiofyl's avatar
oddiofyl
3,825 posts
 

I believe the RME DACs are limited in sampling rates when using it's DSP functionality for EQ and other features ,.   There is just not enough processing power to process the incoming data and perform DSP.    These limits start at 384k and higher.   It passes DSD content untouched , no DSP

Same thing with room EQ on eversolo streamers.   Except they are limited to 24/48k.   

kr4's avatar
kr4
3,678 posts
 

the issue is that I can’t seem to find a way to avoid limiting the resolution to 24/192 or even lower with most dirac endpoints.

AFAIK, DL is limited to 24/192. So what?

Yes, I lose the DSP benefits with those recordings but they still sound amazing. It makes me wonder if most of the benefits of DSP occur in the standard resolution ranges (which is where 99%) of all records live). Perhaps the super high resolution records overcome my room limitations because they are just so open. Can’t say.

I can. What DSP/DL does has nothing to do with resolution. It is as capable with high resolution (>24/192) as it is with 16/44.1. Super high resolution has nothing to do with speaker faults, poorly matched speakers or room effects, all of which are addressed by DSP/DL.

You might call it a trade-off between the two but, in my experience, the improvements wrought by DSP/DL are much more significant than those due to increases resolution beyond 24/96.

jpmomo OP
7 posts
 

Thanks for all of the feedback.  I agree that most of the source material is within the limits of these dirac devices.

For those of you that are using it, how do you have it connected?  Ex between the streamer and dac?  If so, which connectors are you using for the input and output?

I was hoping to at least connect my PC via its USB to the minidsp but not sure if it even has a USB input.

Does dirac need to work in the digital domain?  If not, can I connect the analog output of the dac to the input of the minidsp?

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