VWR126X Mid Woofer and LD25X Silk Dome Tweeter Preliminary Info - Home Theater Forum and Systems - HomeTheaterShack.com

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post #1 of 35 Old 09-12-11, 05:37 PM Thread Starter
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VWR126X Mid Woofer and LD25X Silk Dome Tweeter Preliminary Info

Hi,

The VWR126X started out as a replacement for the FR125S but with a copper coloured cap rather than a phase plug. In spite of their predominance there is good physics to suggest that many phase plugs are more cosmetic than functional. As development progressed it became obvious that frequency response above 10kHz would be a challenge I was not willing to fund at this time. As the LD25X is also ready to go we decided that it would be good to introduce them together and that's the current plan.

The custom cone is a strand oriented flash thermo formed woven composite and the cap is vacuum deposited copper on aluminum. This type of cone is used by a well known British finished loudspeaker vendor and I'm told that one of the "S" driver manufacturers is looking at use it as well.

I'm expecting full measurements and parameters shortly and am planning other drivers using these materials.

Bob

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post #2 of 35 Old 10-29-11, 02:42 PM
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re: VWR126X Mid Woofer and LD25X Silk Dome Tweeter Preliminary Info

How is development progressing on this driver?
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post #3 of 35 Old 10-30-11, 09:53 AM Thread Starter
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re: VWR126X Mid Woofer and LD25X Silk Dome Tweeter Preliminary Info

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How is development progressing on this driver?
We have 4 samples and are expecting the first order to ship at the end of November. Testing it against similarly sized Morel, Eton, Visaton and SEAS drivers we believe it has lower distortion and higher excursion than all of them. We also expect a Klippel report this week from Red Rock Acoustics.

Combining it with the new LD25X one inch XBL silk dome (also expected in the same shipment) with a simple 1st order crossover results in a stand-mount monitor with staggering resolution and clarity.

As soon as they are on a boat there will be preorder special pricing available on both drivers as well as the 2 way kit. There may also be an MTM kit available.

We are very excited about this new direction and plan to develop more high end drivers.

Bob
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post #4 of 35 Old 11-10-11, 10:36 AM
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re: VWR126X Mid Woofer and LD25X Silk Dome Tweeter Preliminary Info

I'm excited to see what this thing can do. I currently own a few of the EL70's and the SDX 7's so i expect this driver to live up to its claims.
A simple two way with only a first order crossover is something to be excited about. It means even novices can have incredibly accurate monitors for critical listening at a price point that won't cause them to burst into tears the first time the cabinet gets bumped.
I feel that what happens with this driver and the tweeter will end up shaping the DIY game for a the next while, by setting the bar incredibly high for others to catch up to, Bob will in turn raise the quality standard of the industry.
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post #5 of 35 Old 12-10-11, 11:38 AM
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re: VWR126X Mid Woofer and LD25X Silk Dome Tweeter Preliminary Info

So is there any news?????

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post #6 of 35 Old 12-10-11, 02:17 PM Thread Starter
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re: VWR126X Mid Woofer and LD25X Silk Dome Tweeter Preliminary Info

Hi,

Both the VWR126X and LD25X (Low Distortion silk dome) production samples by air arrived this week. We will be posting data, pictures, etc. shortly and finalizing the introductory special pricing. The sea shipments will arrive in early January.

The following kit designs are in progress:

Simple ported MT in .25 cu ft with VWR126X running full/direct and the LD25X padded and rolled off with a single cap.

In wall MTM including centre.

In wall MTMMM and MMTMM centre.

Ported MTM in 14 litre (.5 cu ft)

Backloaded horn with 4 VWR126X per side and either a horn loaded planar or a ribbon tweeter.

A series of Fonken style designs from Dave Dlugos where we may ask for some naming help. See Dave's post on nomenclature.

Bob
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post #7 of 35 Old 12-10-11, 07:10 PM
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re: VWR126X Mid Woofer and LD25X Silk Dome Tweeter Preliminary Info

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Both the VWR126X and LD25X (Low Distortion silk dome) production samples by air arrived this week. We will be posting data, pictures, etc. shortly and finalizing the introductory special pricing. The sea shipments will arrive in early January.
Shortly??!?!?

I want PICS ASAP!!!
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post #8 of 35 Old 12-12-11, 12:30 PM
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re: VWR126X Mid Woofer and LD25X Silk Dome Tweeter Preliminary Info

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post #9 of 35 Old 12-12-11, 12:33 PM
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re: VWR126X Mid Woofer and LD25X Silk Dome Tweeter Preliminary Info

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post #10 of 35 Old 12-14-11, 10:43 PM
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Re: VWR126X Mid Woofer and LD25X Silk Dome Tweeter Preliminary Info

Looks Good. But whats the diff between these and ert26?

I hope can see graphs soon.

Cheers
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