My Audiolense Experience (JBL M2)

jtwrace

Member
Thread Starter
Joined
Mar 12, 2019
Messages
98
Location
Orlando, FL
My AV System  
Main Amp
(4) Hypex NC502MP
DAC
Topping D90
Front Speakers
JBL M2
Subwoofers
(2) Rythmik FM8, (1) UM18, (1) Custom DIY Ciare 18
Other Speakers or Equipment
BSS BLU 50
Streaming Equipment
RPi4 using RopieeeXL
Streaming Subscriptions
Tidal
Other Equipment
All Belden 1800F and 1313A
In 2019, I purchased Audiolense XO to try. Long story short, I couldn't get it to work due to an odd error I kept getting. Fast forward to 7 months ago when I interviewed Mitch on my podcast here. The more we talked, the more I wanted to try Audiolense. After the podcast Mitch asked me if I was going to try it and I explained my previous issue. He mentioned to me that anomaly was just solved a month prior.

For the next few months I had to decide on how I wanted to handle the MCH DAC and Roon Core setup. I built a W10 NUCi7 connected directly to a Motu UltraLite Mk5.

@Mitchco charges a modest $500 for the filter creation and also helping you along the way with what issue(s) might come along. For most of us, time is of the essence and a positive result is critical so I thought it would be worth paying the money to have someone hold my hand through the process and hopefully not ruin anything either thus making the $500 minimal. ;)

Mitch might be the most patient man I've ever dealt with on so many levels. He taught me how to count to 8, using 0-7 for routing (you might be surprised how much of a mind boggler this is) among a timing issue during measurement I had. My point is simple, if you're already to this point, just pay the money and make your life a bit easier and know that you have a highly experienced user creating filters for you. The cherry on top is at the end he sends you the file to create your own along with the directions to do so.

If you've made it this far you're asking how does it sound, right? Well, look at the measurements! Translation - Amazing! After about 6 filters I settled on one that I preferred. I can't say enough about Mitch and Bernt of what they have accomplished.

This is not your typical Digital Room Correction (DRC) where phase and timing is NOT corrected. This is SOTA digital crossovers, frequency correction and true time domain correction which now make up my stereo 4 way digital XO system.




Audiolense
Jason digital XO fr.jpg


Jason digital XO step.jpg


I then confirmed the results with REW

Jason frequency response.jpg


Jason Step response.jpg


Jason Phase response.jpg


Routing.jpg
 
Last edited:

2234rew

Member
Joined
Nov 24, 2020
Messages
222
Really great and amazing speakers.

The amazing thing is with Audiolense XO I have achieve very similar measurements with DIY DSP active speakers for much much less money

:p
 

JStewart

Senior Member
Supporter
Joined
Dec 5, 2017
Messages
1,130
Location
Central FL
Having had the privilege of hearing your M2 set up beforehand, I had a difficult time believing that amazing experience could be improved upon, so it’s really great to hear this project worked out so well as it was not without a significant time and expense commitment.

The JBL M2s are an outstanding speaker with outstanding off axis response.
Did you choose to apply filters to the full frequency range, limit correction to the model region, or other?
 

jtwrace

Member
Thread Starter
Joined
Mar 12, 2019
Messages
98
Location
Orlando, FL
My AV System  
Main Amp
(4) Hypex NC502MP
DAC
Topping D90
Front Speakers
JBL M2
Subwoofers
(2) Rythmik FM8, (1) UM18, (1) Custom DIY Ciare 18
Other Speakers or Equipment
BSS BLU 50
Streaming Equipment
RPi4 using RopieeeXL
Streaming Subscriptions
Tidal
Other Equipment
All Belden 1800F and 1313A
Having had the privilege of hearing your M2 set up beforehand, I had a difficult time believing that amazing experience could be improved upon, so it’s really great to hear this project worked out so well as it was not without a significant time and expense commitment.

The JBL M2s are an outstanding speaker with outstanding off axis response.
Did you choose to apply filters to the full frequency range, limit correction to the model region, or other?
All I'll say is you haven't heard nothin'. :)
 

jtwrace

Member
Thread Starter
Joined
Mar 12, 2019
Messages
98
Location
Orlando, FL
My AV System  
Main Amp
(4) Hypex NC502MP
DAC
Topping D90
Front Speakers
JBL M2
Subwoofers
(2) Rythmik FM8, (1) UM18, (1) Custom DIY Ciare 18
Other Speakers or Equipment
BSS BLU 50
Streaming Equipment
RPi4 using RopieeeXL
Streaming Subscriptions
Tidal
Other Equipment
All Belden 1800F and 1313A
@juicehifi question for you. Mitch has mentioned to me that using your Convolver and ASIO Bridge will allow me to route my LG TV into my dac and through my system.

LG > Optical Input to Motu Ultralite Mk5? Convolver goes on my RoonServer NUC? I'd like to work on this over the next couple of weeks as I'll have the time to wrestle with it. ;) Then December it's "upgrade" time to the rear subs! :unbelievable:
 

JStewart

Senior Member
Supporter
Joined
Dec 5, 2017
Messages
1,130
Location
Central FL
All I'll say is you haven't heard nothin'. :)
That’s frightening, in a good way.

I read with great interest Erin’s Klippel M2 measurements as well as saw your actual in-room measurements on @Mitchco ’s most excellent video, too. :T


(Bummer that ASR thread went sideways.)

With luck, I’ll be able to reach out to Mitch for some help after the new year.
 

jtwrace

Member
Thread Starter
Joined
Mar 12, 2019
Messages
98
Location
Orlando, FL
My AV System  
Main Amp
(4) Hypex NC502MP
DAC
Topping D90
Front Speakers
JBL M2
Subwoofers
(2) Rythmik FM8, (1) UM18, (1) Custom DIY Ciare 18
Other Speakers or Equipment
BSS BLU 50
Streaming Equipment
RPi4 using RopieeeXL
Streaming Subscriptions
Tidal
Other Equipment
All Belden 1800F and 1313A
When you're not too busy you'll need to come again for a listen. Need any subs? :)
 

juicehifi

Audiolense
Staff member
Joined
Feb 5, 2018
Messages
287
@juicehifi question for you. Mitch has mentioned to me that using your Convolver and ASIO Bridge will allow me to route my LG TV into my dac and through my system.

LG > Optical Input to Motu Ultralite Mk5? Convolver goes on my RoonServer NUC? I'd like to work on this over the next couple of weeks as I'll have the time to wrestle with it. ;) Then December it's "upgrade" time to the rear subs! :unbelievable:
I am uncertaion about how this will work, due to different clocks on the two streams. However, for all I know, the synchronisation may be handled by Windows + Asio Bridge. Certainly worth trying.

Another approach is to watch web TV instead ... if you are rigged to do so. It will mean using the LG TV as a monitor only. And that approach works without problems.
 

jtwrace

Member
Thread Starter
Joined
Mar 12, 2019
Messages
98
Location
Orlando, FL
My AV System  
Main Amp
(4) Hypex NC502MP
DAC
Topping D90
Front Speakers
JBL M2
Subwoofers
(2) Rythmik FM8, (1) UM18, (1) Custom DIY Ciare 18
Other Speakers or Equipment
BSS BLU 50
Streaming Equipment
RPi4 using RopieeeXL
Streaming Subscriptions
Tidal
Other Equipment
All Belden 1800F and 1313A
I am uncertaion about how this will work, due to different clocks on the two streams. However, for all I know, the synchronisation may be handled by Windows + Asio Bridge. Certainly worth trying.

Another approach is to watch web TV instead ... if you are rigged to do so. It will mean using the LG TV as a monitor only. And that approach works without problems.
I only use YouTube TV. Is that what you mean by web tv? If so, what is the process then?
 

2234rew

Member
Joined
Nov 24, 2020
Messages
222
I only use YouTube TV. Is that what you mean by web tv?
Yes, TV via a web browser , not TV aerial.

Then it's just a matter of creating a zero latency correction filter (min phase XO and min phase room correction). This is to avoid lip sync. Can be 65k taps.

Hookup NUC to TV, as Bernt mentioned (HDMI cable).

Use convolver with ASIO Bridge.

Play system sound to ASIO Bridge.

Setup ASIO Bridge to play to USB interface.

Hope for the best :)

Lots of us are doing this. I have a thread dedicated to doing this with macOS but I have done it with Windows too, with success.

It's really just about routing system audio to your speakers - it's nothing specific to TV viewing.

Can be YouTube, Netflix, Spotify, SoundCloud, whatever, playing to ASIO Bridge.
 
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