Nelson Pass now has 4343's and is coming round to active .
I met him once in Sacramento , lovely man.
He's very positive re GT.
I always liked his amps.
Nelson Pass now has 4343's and is coming round to active .
I met him once in Sacramento , lovely man.
He's very positive re GT.
I always liked his amps.
Here is the video interview and its quite interesting.
https://www.youtube.com/watch?v=zgWJ...ature=youtu.be
Nelson Pass is a fascinating guy and really clever.
If you view the video and are wondering who the acquaintance in Australia Nelson Pass refers to that's me.
The advanced pre launch PR is nice to have.
I will be rolling out more about the product soon with more videos.
Ian
Interesting interview, amp design philosophies, and industry cross-path/relationship stories.
Nelson's never boring
Looking forward to the upcoming crossover implementation/collaboration... that was quite a circuit board!!
Best regards and success,
-dave
Hi Grumpy,
That young guy can be my PR man...
I am hoping it won't be far off now. There is quite a product story behind this and I hope to put up some aspects of that in an interview format.
On the board its grown to 16.75" wide by 13.25" deep since the last revision.
Its quite a piece of work and is the culmination of lots of discussions, market feedback, international travel, listening in peoples homes and hundreds of emails over the past 3 years.
Some insights for you.
Commercial crossovers are more or less cost driven cookie cutter products and the user has to figure out the rest.
I have gone about it differently in that the product delivers key performance outcomes with exotic analogue circuits in a number of key areas. The product is also scaleable from a simple plug it in make it go situation to catering for the thinking cap type of customer who wants to make adjustments, tweaks and evolve a system over time.
Working out how bring the concept to a design, build and then manufacture has been a significant exercise.
The board can be configured by the factory or the user in a number of ways such as a traditional stereo 3 way tri amp situation, stereo bi amp situation, stereo bi amp situation with sub woofer and special tri amp configurations like the Everest DD67000. In the context of these configurations the user can specify a particular model loudspeaker for bi amp operation and a set of plug in daughter boards are provided which are set up for that specific system. If the customer wishes to make a system fully active that can configured with daughter boards for customised equalisation of low, mid and high frequency drivers. This is all in a single stereo chassis.
A bi amp stereo product is also in the works which will have many of the above concepts. Just a bit less of everything which l should point out is still a lot.
I am happy to answer questions.
If the Mods want move this thread to a more appropriate forum please do.
Hey Ian, any plan to have balanced I/O and slopes/freq. correct for biamping 4345’s? If so, I’m a potential customer!
A really nice guy. At one time (Sept. 2016) I presented my 075/2402 lenses to him and he was very impressed and wished me luck in the endevor. He also asked if I could/would make them in larger sizes.
Hi Chas,Originally Posted by Chas
The board l was referring to does balanced and unbalanced in/out.
On the 4345 yes. The crossover requirements of 4345/4343/4350 and clones with the 2123H will be available. Also the other bi amp monitors and consumer models. Those crossover requirements will also be available in the stereo two way product.
I have to think this a modest understatement! Exciting endeavor none the less.
David F
San Jose
I watched the whole thing and saw the quick show of that mainboard!
I especially liked it when Nelson Pass proclaimed to have an extensive Frank Zappa collection!
As l am sure you all appreciate COVID 19 is going to be around for a while and unfortunately this has impacted on plans to get product to market on a number of levels.
However, l thought l would put it out there that this would be a good time to conduct some user evaluations with prototype product while people are at home.
We have previously completed some user evaluations and are at a 3rd prototype revision. Nelson Pass and l have spent many many hours on refining the product towards the current modular design concept and at this point we would like to see some product feedback from out in the field.
I have some prototype product set up for the JBL Everest DD65000, DD66000, DD67000 systems in either bi amp or triamp mode.
Therefore if any LHS members with the Everest’s would be interested in being engaged in a product evaluation or if you have a close friend with the Everest’s who is interested please contact me via a PM. l will then discuss the evaluation process in detail with you and work it out from there. This applies to LHS members in mainland USA, South America, Mexico, Canada, Europe, Asia and the UK.
Other jbl system evaluations will be investigated.
I will post some images of the prototypes in the next couple of days.
Hello Ian
Glad to see things going forward! Best of luck!
Rob
"I could be arguing in my spare time"
Hi All,
I thought l would let you know where this is at.
With the flux of time during Covid 19 there has been some pondering of matching needs to product features and benefits.
With that in mind l am interested in your impressions and thoughts on the following:
Option 1.
A simple to use stereo 2 way universal analogue active crossover with continuously adjustable crossover points from 200-1500 hertz or similar.
24 dB LR slopes, state variable with balanced/unbalanced inputs and outputs.
Designed with premium TI audiophile chips and hi quality Wima capacitors and high quality pots.
This will be an improved Ashly or other universal crossovers like the Rane.
The idea is too keep it simple for those who want premium sound quality but aren’t into taking the lid off and making fine adjustments.
It won’t cost an arm and a leg because you will deal direct with the factory.
Option 2.
A stereo 2 way analogue active crossover that can be set up for specific Jbl systems using plug in cards.
In concept like the DX1. It will also feature a sub out put with an optimal low pass filter.
The crossover frequency, slopes ect are all set precisely for your particular Jbl systems.
The design will use premium class A Jfet buffers and high headroom studio quality discrete op amps.
Available in unbalanced as this crossover is for consumer hifi fanatics. Balanced connection and circuits add cost and complexity and frankly don’t promise improvement in sound quality.
All parts are of the highest quality. This product will be endorsed by Greg Timbers.
Option 3.
A Stereo 2 way or Tri amp analogue active crossover for the audio amateurs who enjoy building project loudspeakers of their own design.
The design will feature premium class A buffers like option two but with adjustable plug in crossover cards for crossover points and slopes. Special purpose plug in cards will be made available for equalisation of low and high frequency drivers and phase alignment of low and mid frequency drivers.
It will available with unbalanced or balanced connectors to a customers requirements.
Option 3 will be sold with the Dayton Omni Loudspeaker measurement system.
I have a reasonable inventory of popular JBL small and large format compression drivers and a growing collection of horns and woofers. So I can offer users with ball park crossover set up guidance.
Why Analogue? Because it’s simple with not a lot to learn and adjust. The focus is on doing the least damage to your precious analogue source. Vinyl is well and truly back and it sounds incredible with with a pristine signal path.
I have some state of art test abs measurement equipment on order.
Just a show of hands would be useful or other ideas.
Ian
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