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Old 20th April 2010, 02:59 AM   #1
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Default Tannoy SandringhamClone -- 8" Dual Concentric MLTL

I would like to share with you a set of speakers that I have begun to build.

I wanted to copy (in sound, not really in cosmetics, that would take LOTS of work!) the Tannoy Prestige Sandringham SE.

They use a Tannoy 2046 8" Dual-Concentric driver, with a mass-loaded transmission line box. It is made from the standard 3/4" MDF. Right now, they are running on the stock Tannoy crossover (2khz 12db, MKP caps and air-core inductors), but eventually will be bi-amped with an electronic crossover around 1.2khz, like the Sandringham SE. Binding posts are yet to be installed.

I need your opinions on a few things:

1. What veneer or laminate would match well with these speakers?
2. Is there something better than Behringer for the crossover?
3. I need a base for them to keep them level. What should it look like?

Also, please give any other thoughts you may have.
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Old 20th April 2010, 06:30 AM   #2
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you might be interested in looking at Onur Ilkorur's Tannoy TL project I know that he was very pleased with the results. Hope you find this of interest.

Tannoy
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Old 20th April 2010, 10:06 PM   #3
DonM is offline DonM  Canada
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Just want to point out that a 2,000 hz crossover on an 8" dual concentric is likely the best. The cut off for the horn is likely to be around 1,000 hz.
You can easily compare when you get the active crossover.

Don
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Old 20th April 2010, 10:36 PM   #4
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ah, I meant to say 1.6khz, not 1.2.

but yes, once I get the crossover set up I can experiment all I want!
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Old 20th April 2010, 11:04 PM   #5
DonM is offline DonM  Canada
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Quote:
Originally Posted by DonM View Post
Just want to point out that a 2,000 hz crossover on an 8" dual concentric is likely the best. The cut off for the horn is likely to be around 1,000 hz.
You can easily compare when you get the active crossover.

Don
I purchased a microphone and have used HolmeImpulse to complete some rough measurements of my projects. The graphs make it easier to objectively compare different speaker options such as crossovers or vent sizes.

Don
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Old 21st April 2010, 06:15 PM   #6
Holty is offline Holty  United Kingdom
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As far as the veneer or laminate it's personal choice on your behalf. What to look for is the width on veneer as it can taper and make sure it covers your speakers on the width or you with need to join them.

Jim
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Old 21st April 2010, 08:46 PM   #7
doug20 is offline doug20  United States
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Is the Tannoy 2046 8" Dual-Concentric driver sold online somewhere?
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Old 21st April 2010, 09:25 PM   #8
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Quote:
Originally Posted by doug20 View Post
Is the Tannoy 2046 8" Dual-Concentric driver sold online somewhere?
No, sorry, I got really lucky. I found a cache of 10 of them at an audio surplus warehouse near where I live in Atlanta. They were all new and I got them at a stupid-low price!

The only place they will be now is eBay, sold as ceiling speakers.
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Old 21st April 2010, 09:28 PM   #9
doug20 is offline doug20  United States
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thanks.
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Old 22nd April 2010, 03:10 PM   #10
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This pic is for dshambala.
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