Pure Low GR -- Infrasonic Panel

I was searching for info about the WB Torus and found this fascinating thread. Anywhere to hear the Pure Low in the NY tri state area or South Florida?
PM sent
 
Hi Todd,

Did you ever have a occasion to experiment using the Pure Low in place of the basshorns?
 
Unfortunately not yet. I have been busy and the Danville DSP has neen problematic.

Todd
 
Unfortunately not yet. I have been busy and the Danville DSP has neen problematic.

Todd
Thanks for keeping us posted...most intrigued. Your work has been remarkable to read, and I can say it has certainly advanced my own thinking around our desire for the next step to be an expansion of the sub-40hz performance here.
 
Unfortunately not yet. I have been busy and the Danville DSP has neen problematic.

Todd
Pity, I'm also VERY interested in that outcome.
 
Also a little update. After repeated struggles trying to get the Danville DSP Nexus to work I gave up on it. I don't mean getting it to work with the Pure Low. I mean getting it to actually work and do something. So, I reached out to Trinnov and have an Amethyst on the way. This should allow me all the control I need to integrate the Pure Low with the Tio. I will try an prioritize this work after the Munich show.
 
Also a little update. After repeated struggles trying to get the Danville DSP Nexus to work I gave up on it. I don't mean getting it to work with the Pure Low. I mean getting it to actually work and do something. So, I reached out to Trinnov and have an Amethyst on the way. This should allow me all the control I need to integrate the Pure Low with the Tio. I will try an prioritize this work after the Munich show.
Looking forward to reading all about it! Thanks for the update...a lot of hard work!
 
Hello,
This discussion about the PureLow is interesting. I also saw Cedric's message. I'm the person who has had PureLows for 10 years... well, it will be 10 years in February 2026. They are great models and I'm very happy with them. Since I paired them with stacked Quad57s, I don't ask too many questions about my equipment. Maybe the constraints of the room. This is the third house I've occupied with them and the sound is different each time... I'm going to, on the advice of Patrick Marchandot who makes PureLows, probably invest in a Trinnov. I'll tell you...
 

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Also a little update. After repeated struggles trying to get the Danville DSP Nexus to work I gave up on it. I don't mean getting it to work with the Pure Low. I mean getting it to actually work and do something. So, I reached out to Trinnov and have an Amethyst on the way. This should allow me all the control I need to integrate the Pure Low with the Tio. I will try an prioritize this work after the Munich show.
I'm surprised Al Clark didn't recommend that you work with Richard Hollis. With the DSPNexus software based digital filters and crossovers are built using Dream Weaver software. I didn't find this and the second tutorial very difficult.

But to go any further I would have to hire Richard Hollis. He helps you set up the DSPNexus unit as per the rest of the hardware in your system, Then he remote controls your pc (or mac) and guides you though making speaker (and/or subwoofer)/room measurements prior to and after he builds and saves the crossovers on your desktop. Then once it's all sounding good perhaps he then has you do some final tweaks.
https://danvillesignal.com/hollis-audio-labs-interview

Lots more to learn about it all here. https://danvillesignal.com/blog/
 
I'm surprised Al Clark didn't recommend that you work with Richard Hollis. With the DSPNexus software based digital filters and crossovers are built using Dream Weaver software. I didn't find this and the second tutorial very difficult.

But to go any further I would have to hire Richard Hollis. He helps you set up the DSPNexus unit as per the rest of the hardware in your system, Then he remote controls your pc (or mac) and guides you though making speaker (and/or subwoofer)/room measurements prior to and after he builds and saves the crossovers on your desktop. Then once it's all sounding good perhaps he then has you do some final tweaks.
https://danvillesignal.com/hollis-audio-labs-interview

Lots more to learn about it all here. https://danvillesignal.com/blog/
Thank you for the comment. My issue with the Danville DSP nexus is not audioweaver or setting up the filters. That part is realatively straighforward. I am familiar with DSP's and have used various models over the years. Most recently I was using the Xilica XP4080 to integrate subwoofers. Like with the Xilica, I am not high passing the mains. All i am trying to do is implement a low pass filter for a pair of subs. (It uses something like 5% of the processing power of the DSP.)

My problem is I can't get the USB communication to work properly. They sent me a new USB board which I installed yielding the same result. I have spent many hours on the phone with their tech guy with no real resolution. It is very frustrating that this thing is just sitting there doing nothing. They are trying to blame my laptop which is nuts. My laptop is a 1 year old windows 11 machine (MSI) and has plenty of processing power and the USB port works fine with everything else I plug into it.

Overall, I think their documentation is very, very poor. It is scattered in a drop box. Getting everything installed was not straightforward. The DSP Nexus is not a consumer product and i would not recommend to anyone.
 
Hello @jbrrp1 ,

Regarding height. I believe that all subwoofers need much more height from the floor to sound their best. This has been the case with every subwoofer I have owned or setup. (And that is a sizable list) I currently have three pieces of MDF under each foot. One piece of 3/4", one piece of 1/2" and one pice of 1/4" so about 1.5" of added height in addition to the foot that comes on them. I have them raked back about 0.12 degrees.



~Todd
You might want to try raising your subs higher off the floor. I've found that 18"+ makes a substantial difference in clarity and Frequency integration adjustability (meaning more tailorability when rotating from front facing to side to rear facing).

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