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Multi-Way Conventional loudspeakers with crossovers

TDL Studio 1 : need replacement drivers
TDL Studio 1 : need replacement drivers
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Old 30th March 2020, 04:28 PM   #11
system7 is online now system7  United Kingdom
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Quote:
Originally Posted by Sally View Post
I forgot to say, the rubber surrounds of the woofers are completely shot
Now you tell us! Of course it sounds rubbish. Everything rubbing and distorting.

Is it the round or the square frame bass?

Seen one 6" polycone, you seen 'em all, IMO.

I wouldn't worry about the trebles, right now.

One thing at a time.
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Last edited by system7; 30th March 2020 at 04:30 PM.
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Old 30th March 2020, 04:52 PM   #12
Sally is offline Sally  France
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Hopefully I've attached a photo here - I can't see it though!
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File Type: jpg 1 STUDIO 1.jpg (17.7 KB, 168 views)
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Old 30th March 2020, 05:03 PM   #13
system7 is online now system7  United Kingdom
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Alors! Pascal has been very creative there!

That is nothing like the original.

Looks like a Dynaudio bass and a Vifa XT25 tweeter!

I wonder if he modified the crossover too?

This could get deep.

But replacing the bass looks like the main event. Maybe we could find an Audax unit.

Question of what fits, really.
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Old 30th March 2020, 05:19 PM   #14
system7 is online now system7  United Kingdom
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This looks doable to me.

TDL Studio 1 : need replacement drivers-1-studio-1-jpg

Clearly this is the square frame bass model originally. And the 13x8mm metal tweeter.

The good news is it isn't rebated (which means the baffle is flat), so almost anything will fit.

You need to unscrew the drivers and measure the hole cutouts in the baffle.

It's not hard to file them bigger if the new drivers need a bigger cutout.

Et Apres, we have a dig around Speakers & Audio Parts, EU Webshop to see what is available.
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Old 2nd April 2020, 02:31 AM   #15
davidsrsb is offline davidsrsb  Malaysia
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Quote:
Originally Posted by system7 View Post
....
Tweeters should be measured for fit too,

Falcon do a soft dome Audax replacement. It may not be what you want here especially if you have an Elac metal tweeter:

AUDAX TW025A0 8 ohm 12 x 8 Tweeter, replaces IMF, Celef, Radford

A general inspection is worthwhile before throwing money at a project, as Lojzek says. The tweeters are probably too old to have ferrofluid, which is an oily liquid that can dry out and reduce treble output.
....
Photos of the Studio 1 show a rectangular ELAC faceplate hard dome tweeter common on many TDL models. These did use ferrofluid and it will be long dried up. The Falcon replacement is likely to work, the original was not the strong point of the design.
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Old 2nd April 2020, 09:01 AM   #16
Mattes is offline Mattes  Germany
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Bonjour Sally,
your "repaired" Loudspeakers have sadly not very much to do with the original TDL Studio 1 anymore (TDL Studio 1 loudspeaker Measurements | Stereophile.com).

Before you start off into new design adventures with whatever drivers - which will require a new crossover and probably other changes - you might consider buying another Studio 1, if you liked the sound (TDL Elektronik Studio 1-Excellent "Ubertragungsleitung" HiFi Lautsprecher | eBay). This might sound more expensive first, but as the original drivers are hardly available anymore, it could be your safest way to get the "old" sound back. All else is a new loudspeaker - you simply canīt use whatever is available as drivers and hope that it sounds good.
Sorry to discourage you somehow...

Cordialement

Mattes
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Old 2nd April 2020, 10:02 AM   #17
system7 is online now system7  United Kingdom
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It's true that 6" polycones are not easily available and tend to expensive these days. I must thank Lojzek for this thought, but the paper Visaton WS17E-8 is only Ģ25:

WS 17 E - 8 Ohm | Visaton

If it fits, it ought to be cheap entertainment at least. Nothing will blow up for sure. A similar project here.

Visaton-Monacor 2 way sealed simple loudspeaker build plans

The perfect can be the enemy of the good sometimes.
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Old 2nd April 2020, 01:38 PM   #18
raymondj is offline raymondj  United Kingdom
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Could you clarify the rubber surrounds of the woofer are completely shot. I cannot see that in the image.

Maybe its from the good times when the speaker worked?
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Old 2nd April 2020, 05:07 PM   #19
cm6 is offline cm6
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Perhaps useful in the quest.
Attached Images
File Type: jpg TDL Studio 1.JPG (74.6 KB, 93 views)
Attached Files
File Type: pdf Elacimftdl.pdf (92.2 KB, 15 views)
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Old 2nd April 2020, 06:20 PM   #20
Sally is offline Sally  France
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Thanks Mattes. I had originally started to look for a replacement pair of Studio 1s and found a few for sale here and there. But they were all so far from here that if I did buy I would be "buying blind" without having been able to see or, more importantly, hear the speakers. Also, shipping for such large items could be a problem, especially in France. I was once sent a Feder guitar amp from London and it got lost on the way. It did eventually turn up (more than 6 months later). I've also had many more smaller items going mission in the post. So I'm not very confident. If someone nearby who knows their stuff could go and "visit" the speakers that would be helpful but as they're scattered all over Europe that'd mean having people all over the place! I've never seen any for sale in France... But I'm not totally opposed to the idea if a really good opportunity comes up and is within by somewhat limited budget.
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