Tannoy SandringhamClone -- 8" Dual Concentric MLTL

gripracer · 20th April 2010, 02:59 AM

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.

moray james · 20th April 2010, 06:30 AM

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

DonM · 20th April 2010, 10:06 PM

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

gripracer · 20th April 2010, 10:36 PM

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!

DonM · 20th April 2010, 11:04 PM

Quote:

Originally Posted by DonM

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

Holty · 21st April 2010, 06:15 PM

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

doug20 · 21st April 2010, 08:46 PM

Is the Tannoy 2046 8" Dual-Concentric driver sold online somewhere?

gripracer · 21st April 2010, 09:25 PM

Quote:

Originally Posted by doug20

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.

doug20 · 21st April 2010, 09:28 PM

thanks.

gripracer · 22nd April 2010, 03:10 PM

This pic is for dshambala.

20th April 2010, 06:30 AM	#2
moray james diyAudio Member Join Date: Aug 2003 Location: Calgary on the Bow	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 __________________ moray james

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20th April 2010, 10:06 PM	#3
DonM diyAudio Member Join Date: Jan 2006 Location: Toronto	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

20th April 2010, 10:36 PM	#4
gripracer Banned Join Date: Mar 2009 Location: Atlanta, GA	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!

21st April 2010, 06:15 PM	#6
Holty diyAudio Member Join Date: Jan 2007	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

21st April 2010, 08:46 PM	#7
doug20 diyAudio Member Join Date: Mar 2009	Is the Tannoy 2046 8" Dual-Concentric driver sold online somewhere?

21st April 2010, 09:28 PM	#9
doug20 diyAudio Member Join Date: Mar 2009	thanks.

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