Supravox 215 exc OB and 400exc - diyAudio
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Old 17th July 2012, 03:45 PM   #1
vega65 is offline vega65  Norway
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Default Supravox 215 exc OB and 400exc

A friend on vacation in France phoned me a few days ago. He had auditioned some speakers buildt with supravox drivers and was yelling and yelling , he could not stop praising them..

On impulse I ordered a pair of 215 exc ob and a pair of the 400 exc as well.

I have been devoted to tube amplifier construction and building as a hobbyist for some years, but have little experience with loudspeaker diy.

You may have a laugh at me : I know the combo top of the shelf parts and
Unexperienced builder is not the usually recommended starting point...
Sometimes it's ok to let impulse kick your ***..

Gentlemen : I will acquire the necessary skills and equipment to arrive at a decent result. If you look under diy at supravox website you will find the panneau plan: different drivers, but would it be possible to do something similar with the 215 exc and the 400 exc?
(and a quality driver for the highs?)

When it comes to amps: no restrictions I have some and can build what's needed.
Feel free to Chime in ..
Appreciate suggestions and advise

Last edited by vega65; 17th July 2012 at 03:48 PM.
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Old 17th July 2012, 09:48 PM   #2
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Join Date: Nov 2008
Quote:
Originally Posted by vega65 View Post
A friend on vacation in France phoned me a few days ago. He had auditioned some speakers buildt with supravox drivers and was yelling and yelling , he could not stop praising them..

On impulse I ordered a pair of 215 exc ob and a pair of the 400 exc as well.

I have been devoted to tube amplifier construction and building as a hobbyist for some years, but have little experience with loudspeaker diy.

You may have a laugh at me : I know the combo top of the shelf parts and
Unexperienced builder is not the usually recommended starting point...
Sometimes it's ok to let impulse kick your ***..

Gentlemen : I will acquire the necessary skills and equipment to arrive at a decent result. If you look under diy at supravox website you will find the panneau plan: different drivers, but would it be possible to do something similar with the 215 exc and the 400 exc?
(and a quality driver for the highs?)

When it comes to amps: no restrictions I have some and can build what's needed.
Feel free to Chime in ..
Appreciate suggestions and advise
Howdy sheriff - I am just about to build something similar - only with Fertin 38EX 15" for bass duty, and the new 8" "fullrange" on top! Both field coil, and OB, of course...

Maybe we should have a speaker build-off, OCC style...
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Old 18th July 2012, 12:47 AM   #3
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Interesting, nice drivers.
(The Suprafox 400-EXC, with a silver coil version available...)
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Old 18th July 2012, 11:25 AM   #4
vega65 is offline vega65  Norway
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Join Date: Nov 2007
"sluket" Appreciate to see you back on the internet again!
I am living at Kolsås just a short drive from oslo..
Could be an interesting exercise to compare Fertin and Supravox.
Speaking of horses I know you are many h heads in front of me
When it comes to experience. Put your saddle on a small one as usual!
I am writing on my cell phone, suf
fering in the sun at Mykonos...
Just a few questions to Get started:
I have glanced through MJK article on OB.
If I got it right as baffle size goes down effeciency demand on bass driver goes up.
(assuming passive crossover)
With the supravoxes at hand should I aim at using a separate amp for the 400 exc
Or is it possible to get away with a passive filter and one amp and keep the baffle about the size of the panneau plan?
How low do you think I should cross the 215 exc (for a start)
Dc supplies for the coils recommandations?
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Old 18th July 2012, 12:39 PM   #5
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Join Date: Nov 2008
Quote:
Originally Posted by vega65 View Post
"sluket" Appreciate to see you back on the internet again!
I am living at Kolsås just a short drive from oslo..
Could be an interesting exercise to compare Fertin and Supravox.
Speaking of horses I know you are many h heads in front of me
When it comes to experience. Put your saddle on a small one as usual!
I am writing on my cell phone, suf
fering in the sun at Mykonos...
Just a few questions to Get started:
I have glanced through MJK article on OB.
If I got it right as baffle size goes down effeciency demand on bass driver goes up.
(assuming passive crossover)
With the supravoxes at hand should I aim at using a separate amp for the 400 exc
Or is it possible to get away with a passive filter and one amp and keep the baffle about the size of the panneau plan?
How low do you think I should cross the 215 exc (for a start)
Dc supplies for the coils recommandations?
He.. never left, really, at least not here! Just decided to take a break from all those f.#@!!!n' A$%#@es who stunk up our beloved HFS for a while.. Anyway, I haven't studied those Supravox drivers for a whilse, so I need to read a bit first. But basically, it is possible to get away with one amp as such, if the drivers are not too far apart in sensitivity. I will be playing around with a variety of solutions, one amp, two amps and Firstwatt B4 and B5 xovers, two amps and passive line level filters etc. Baffle inserts for mid/treble will be interchangeable so I can try out a few different drivers , as well as testing the (possible) effect of assymetric mounting. Decent PS is already in the planning, I do not trust those smps boxes for longer distances than I can throw an elephant these days... Let's meet when you are tired of exploiting those Greeks!

Last edited by pengesluk; 18th July 2012 at 12:41 PM.
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