DSP Nexus and my setup???

rhale64l7 · « **Reply #20 on:** 19 May 2025, 03:44 am »

Also I have rew set up on my computer with my UMIk1 that has a calibration file already. Can I just use that for my measurements? And send you that file,? And do I need to wait to download Audio Weaver on my computer? Do I get a license in the box? And which version of AW do I need? Sorry again for all the questions. I just want to make sure I am going to be doing this right.

HAL · « **Reply #21 on:** 19 May 2025, 12:29 pm »

Yes, you can use the REW setup on your Windows PC system for measurements. I will need the files created when done with both speaker measurements via email. You can once the dspNexus XMOS device driver is loaded use it as the test system with REW and your UMIK-1 as well.

The Audio Weaver license is part of the purchase of the dspNexus system. After purchase, the email address you want to use is setup for you to login to DSP Concepts to activate your system license. Danville Signal will email you a Dropbox link to the version of Audio Weaver needed to run your dspNexus.

Audio Weaver runs on Windows PC's with a USB connection, the speed depends on the CPU.

rhale64l7 · « **Reply #22 on:** 19 May 2025, 03:36 pm »

Ok thank you very much.

rhale64l7 · « **Reply #23 on:** 21 May 2025, 06:54 am »

Well guys I am the one that just bought one of these to go with the Orchard Audio Ultra modules. I plan to document my journey on here. I am a complete moron so if I can do it anyone can. I am both excited and a bit nervous because I do blow up a lot of stuff. Lol. Oh well I can't wait to get started. And my moto is good enough is not good enough. So I will be taxing this thing and my speakers.

orchardaudio · « **Reply #24 on:** 27 May 2025, 07:16 pm »

Good luck and have fun!

rhale64l7 · « **Reply #25 on:** 27 May 2025, 08:11 pm »

Thank you Leo I am waiting for the Dropbox download email to get started. I have it all hooked up. I have signed up on the DSP Concepts website. Just waiting to download and get to work on my crossover's. Anticipation is killing me.

HAL · « **Reply #26 on:** 8 Jun 2025, 10:12 pm »

rhale64l7 is up and running with the dspNexus 2/8 and Audio Weaver.

rhale64l7 · « **Reply #27 on:** 8 Jun 2025, 11:31 pm »

Well folks I have taken advantage of the great opportunity to purchase this. And all I can say is it is the best decision I have made in my life when it comes to audio. I have SB Acoustics Sasandu Textreme's with 6 ultra modules with the DSP Nexus as my DSP crossover, DAC, and Preamp for audio. It has been more work but the reward is so awesome. I can't believe how good it sounds. I was using an Anthem AVM90 processor and a Sublime Acoustics analog active crossover. I have sold the AVM90 and bought an Emotiva XMC2 for my surround duty it is going analog in to the Nexus. I have just went through the setup with Richard Hollis and it was a delight. I am as illiterate as they come about this stuff but with Rich's guidance I have learned so much already. And I want to learn so much more. I would like to learn how to do it all myself. But for the beginner it is really fairly easy. But you need to want to get your hands dirty. I am still learning. But it is so enjoyable. Anyway thank you Leo and Richard Hollis and Al Clark of Danville Signal for this great opportunity. It is even better than expected by a large mile.

sandbagger · « **Reply #28 on:** 9 Jun 2025, 11:33 pm »

Glad to hear you have it up and running.
More importantly, its everything you had hoped for and its not disappointing.

I have heard the demos at Axpona the last what 3-4yrs now and the A-B has never been questioned

Its pretty amazing how many people still think DACs today still sound like the ones from the early 2000's Newer dacs just blow away the older stuff

I cant wait(but will have to) to get my Nexus up and running on my Apogee Dueta Sigs

rhale64l7 · « **Reply #29 on:** 10 Jun 2025, 01:40 am »

Yes pretty much all the newer Dacs starting in about 2015 or later all sound pretty good to me. Some better than others. But at least tolerable. Before that I couldn't find one that I liked. I actually hated them all.

Nick B · « **Reply #30 on:** 10 Jun 2025, 05:27 am »

Quote from: rhale64l7 on 8 Jun 2025, 11:31 pm

Well folks I have taken advantage of the great opportunity to purchase this. And all I can say is it is the best decision I have made in my life when it comes to audio. I have SB Acoustics Sasandu Textreme's with 6 ultra modules with the DSP Nexus as my DSP crossover, DAC, and Preamp for audio. It has been more work but the reward is so awesome. I can't believe how good it sounds. I was using an Anthem AVM90 processor and a Sublime Acoustics analog active crossover. I have sold the AVM90 and bought an Emotiva XMC2 for my surround duty it is going analog in to the Nexus. I have just went through the setup with Richard Hollis and it was a delight. I am as illiterate as they come about this stuff but with Rich's guidance I have learned so much already. And I want to learn so much more. I would like to learn how to do it all myself. But for the beginner it is really fairly easy. But you need to want to get your hands dirty. I am still learning. But it is so enjoyable. Anyway thank you Leo and Richard Hollis and Al Clark of Danville Signal for this great opportunity. It is even better than expected by a large mile.

Glad you got such a great result. I have the Starkrimson Ultra from Leo and Rich has always been very helpful 👍

rhale64l7 · « **Reply #31 on:** 10 Jun 2025, 06:08 am »

Thank you

danvillesignal · « **Reply #32 on:** 11 Jun 2025, 02:01 pm »

I agree that DACs and ADCs have gotten better the last few years. The dspNexus has modules for DACs, ADC and DSP, so that it is upgradable as technology marches on.

I think I designed about 6 different DAC modules during the dspNexus development and we have produced two in production. There were a similar number of ADC modules used in both dspMusik and dspNexus.
The ADC & DAC parts you start with certainly matter, but the supporting cast does as well. Most designs are just the manufacturer's reference design wrapped in a shiny box. This can give you good results but I think you can do better.

The current versions are our best and I think they stand up well against typical stereo DAC offerings.

Al Clark
Danville Signal

bellicon · « **Reply #33 on:** 12 Jun 2025, 04:17 pm »

Quote from: rhale64l7 on 17 May 2025, 02:55 am

Ok but I don't have passive cross overs in my speakers. So I would need something to protect my tweeters from full range sound correct? Do you have some safeguards in it to protect that?

Thanks for asking this along with other great questions.

Quote from: HAL on 17 May 2025, 11:10 am

For your speakers, no passive crossover is needed as the dspNexus 2/8 will be the bandwidth limiting system for the drivers for protection. The limited bandwidth goes to each driver in the speaker as in your Active crossover.

Yes, I too was worried about this, for the sake of my drivers but infinitely more for my EARs! https://www.grainger.com/product/3M-PELTOR-Ear-Muffs-Over-the-Head-Earmuff-21DE18?opr=PDPRRDSP&analytics=dsrrItems_1C139

bellicon · « **Reply #34 on:** 12 Jun 2025, 04:35 pm »

Quote from: danvillesignal on 11 Jun 2025, 02:01 pm

The current versions are our best and I think they stand up well against typical stereo DAC offerings. Al Clark Danville Signal

Sorry, but I couldn't resist: Game for a shootout?
https://www.stereophile.com/content/okto-dac8-stereo-da-processor

https://www.stereophile.com/content/holoaudio-may-level-3-da-processor

https://www.theabsolutesound.com/articles/schiit-audio-yggdrasil-dac/

rhale64l7 · « **Reply #35 on:** 12 Jun 2025, 05:03 pm »

The DAC section of this will compare very favorably to those Dacs. I am not HAL however. 😂. But none of those Dacs will do all that the Nexus will do. I am controlling everything going to my main speakers drivers with this. None of those will do that. But I have heard the May and I owned the Spring2 Kitsune edition and this is leagues better sounding. I haven't heard a Yiggy however. Probably heard an Okto at Axpona a few times possibly not. I like this way better than my PS Audio Direct Stream DAC that I used to own. Funny I never really liked that for some odd reason.
I know I'm no expert so these are just my opinions.

bellicon · « **Reply #36 on:** **Yesterday** at 05:27 pm »

Quote from: HAL on 19 May 2025, 12:29 pm

Yes, you can use the REW setup on your Windows PC system for measurements. I will need the files created when done with both speaker measurements via email. You can once the dspNexus XMOS device driver is loaded use it as the test system with REW and your UMIK-1 as well.

The Audio Weaver license is part of the purchase of the dspNexus system. After purchase, the email address you want to use is setup for you to login to DSP Concepts to activate your system license. Danville Signal will email you a Dropbox link to the version of Audio Weaver needed to run your dspNexus.

Audio Weaver runs on Windows PC's with a USB connection, the speed depends on the CPU.

Though I did watch the first and second Audio Weaver tutorials-and understood ~ 80% of it-I'm a total nubie with anything DSP and zero experience with room measuring software for making acoustical improvements. My main speakers will be custom built and include passive crossovers, using these midwoofers https://josephcrowe.com/blogs/news/altec-416-8b-in-100l-sealed , with a two or three system using a horn like this https://josephcrowe.com/products/3d-cad-plans-for-es-290-biradial-horn-horn-no-1670 and three or four of these subwoofers. https://www.rythmikaudio.com/F12.html

The passive crossovers being external to the speakers, designing and implementing active crossovers are doable. But how to decide which may sound better?

AND must this be decided upon first because aren't all room correction measurements, selection of absorbers and diffuser materials and subwoofer management dependent on the specific crossover characteristics of the main speakers to eliminate or reduce any room modes for achieving an optimally flat response?

HAL · « **Reply #37 on:** **Yesterday** at 06:53 pm »

None of my customers using horn speakers that purchased the dspNexus 2/8 has gone to either passive or other DSP crossovers after the system was designed from speaker and room measurements. The key is measurements of the speakers when built and in the room. The basic crossover in Audio Weaver is setup by myself for the users system to begin the REW measurement process.

Part of the measurements are not room specific and REW can make the measurements. The websites you show use ARTA for the measurements which I have for use that can use REW data. The lower frequency range needs direct measurements at the listening seat for accurate frequency response. This needs the speaker and room treatments to be in place for correct results, since if things move, then new measurements are needed for the correction to be accurate.

In room measurements are not hard and there are many YouTube videos along with my instructions on how to make them with REW. The dspNexus 2/8 and a balanced mic like a Beyerdynamic MM-1 with their calibration data with an XLR cable and mic stand are needed and work with REW once setup.

The dspNexus also gives ways to correct the speaker passive crossover response in room as I have done for many customers as well. This does well, but not as well as direct driver multiway DSP crossovers.

Since the speaker and room measurements are key to good outcome for the speakers, it is up to the customer to decide if they have time and would be capable to make multiple measurements. This would be required for any DSP based crossover and correction system for best use.

bellicon · « **Reply #38 on:** **Yesterday** at 09:28 pm »

Quote from: HAL on Yesterday at 06:53 pm

Since the speaker and room measurements are key to good outcome for the speakers, it is up to the customer to decide if they have time and would be capable to make multiple measurements. This would be required for any DSP based crossover and correction system for best use.

I'm willing to commit the time and effort do this but the big problem is deciding on the right horn/driver combo for my situation and specific goals. Please check out my thread. Any advice would be appreciated.
https://www.diyaudio.com/community/threads/horn-driver-combo-for-midwoofer-room-preferred-directivity-pattern.429264/

HAL · « **Reply #39 on:** **Yesterday** at 09:51 pm »

I am not familiar with horn drivers enough to comment on those products and designs.

Will leave that to more informed speaker designers.