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Multi-Way Conventional loudspeakers with crossovers

Tannoy VX12 Box designs
Tannoy VX12 Box designs
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Old 16th May 2018, 07:12 PM   #21
aquapiranha is offline aquapiranha  United Kingdom
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I have taken some pics of the driver although I wouldn't know if there are any clues as to the identity of the model. If anyone has any ideas on this, or potential cabinet designs I am all ears! Thanks
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Last edited by aquapiranha; 16th May 2018 at 07:21 PM.
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Old 16th May 2018, 10:46 PM   #22
Charles Darwin is offline Charles Darwin  United Kingdom
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In the face of all this I can only suggest to do what Tannoy did to all their best speakers*: Add woofers.

If it is not a 3142 it will have T/S parameter very much like it.
There is nothing you can reasonably do to get low bass out of it that would not eat up precious headroom and make it a lesser speaker IMO.

On the other hand you could end up with a very,very good speaker, accurate with all the dynamics your amps will allow and low distortion if you partner them with an 18, one or two 15s or a couple of 12s.


Or you could swap them for a couple of 3149s (LittleRed Monitor drivers) I have!



*S900, FSM, Buckingham Monitor, Dreadnaught, System 215DMT
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Old 16th May 2018, 11:01 PM   #23
aquapiranha is offline aquapiranha  United Kingdom
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Quote:
Originally Posted by Charles Darwin View Post
In the face of all this I can only suggest to do what Tannoy did to all their best speakers*: Add woofers.

If it is not a 3142 it will have T/S parameter very much like it.
There is nothing you can reasonably do to get low bass out of it that would not eat up precious headroom and make it a lesser speaker IMO.

On the other hand you could end up with a very,very good speaker, accurate with all the dynamics your amps will allow and low distortion if you partner them with an 18, one or two 15s or a couple of 12s.


Or you could swap them for a couple of 3149s (LittleRed Monitor drivers) I have!



*S900, FSM, Buckingham Monitor, Dreadnaught, System 215DMT
Hi again. When you say partner with, do you mean use a separate subwoofer?

Thanks again
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Old 17th May 2018, 09:50 AM   #24
Charles Darwin is offline Charles Darwin  United Kingdom
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No, I mean using your driver as mid and hi in a 3way speaker like Tannoy did in the speakers I mentioned.


And like I do with my own Tannoys.

Last edited by Charles Darwin; 17th May 2018 at 09:53 AM.
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Old 17th May 2018, 06:42 PM   #25
aquapiranha is offline aquapiranha  United Kingdom
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Quote:
Originally Posted by Charles Darwin View Post
No, I mean using your driver as mid and hi in a 3way speaker like Tannoy did in the speakers I mentioned.


And like I do with my own Tannoys.
I see thanks. So you would not recommended the driver being fitted in a horn loaded cabinet for example? Can I ask what drivers you would suggest? Thanks
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Old 17th May 2018, 10:38 PM   #26
Charles Darwin is offline Charles Darwin  United Kingdom
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I can't see any advantages by using a back-loaded horn, only potential problems.

BLH increase bass in volume but not in extension as far as I am aware so you have a problem because they do nothing to the output above 300-400Hz. Since your DC has a flat output from in a ported or sealed cab you end up with the 70-300Hz region being relatively louder than the mids coming from the cone.
You either suck it up, adjust it in the crossover in which case you end up with all the complications of a 3way crossover without any of the benefits or you do what Tannoy chose when they did BLHs right: A stubby front loaded horn to bump up the mids.

A 3way with dedicated woofer(s) has the advantage of lowered intermodulation as it removes most of the excursion from the DC. This cleans up the mids and the treble audibly. The crossover should be relatively easy if you put it around 200Hz or so since the DC extends to well below that while any woofers will likely be flat to way above so you can go by the book because acoustic slope = electrical slope.


As for drivers there must be dozens if not hundreds which could successfully pressed into service. Which one represents the best compromise to YOU depends on how low you want to go, how loud, how much space you've got, what kind of look you prefer and as always the opinions of your better half and your bank manager.
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Old 18th May 2018, 10:26 AM   #27
cooky1257 is offline cooky1257  United Kingdom
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Interesting, the current VX12 uses a modified(cheaper) tulip but yours do look very like a 3142. The current VX sits is a 35 L box tuned to 100hz, these tend to be mid to high Qts drivers and as far from Golds as you can get tbh. You need to measure them. Tannoy could well be protecting them in using small high Fb cabs so that isn't to say you cant drop them in 175L/40hz with reasonable results but without the T&S its **** of the pants stuff.Safest bet is as what Charlie says=3 way.
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Old 18th May 2018, 11:12 AM   #28
aquapiranha is offline aquapiranha  United Kingdom
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Thanks Cooky. I will get them measured and post up the results though itis likely to be a week or so before i can.

Steve
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Old 18th May 2018, 04:15 PM   #29
cooky1257 is offline cooky1257  United Kingdom
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Says its same as a 3142

Tannoy V12, Vi12, 3142 Recone Kit 7900 0441 - Speaker Exchange
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Old 18th May 2018, 11:07 PM   #30
aquapiranha is offline aquapiranha  United Kingdom
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Originally Posted by cooky1257 View Post
It looks the same, but does not mention the VX12? Just the V12 etc?
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