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replace coaxal speaker?!

disfiguredmetal

disfiguredmetal

Sep 23, 2006
58
7
40
#1
alright so i wanted to get some of my old gear up and running agian, problem is i'm not sure we to find the right speaker to replace the one i had. it's an Eden CXC 212 C3, the combe w/ 2x12's and my top speaker blew out. i took to a speaker shop and the guy there said i'd be better off getting a new amp! does anyone know anything about these combo's that could possibly help me get it going again. i know the speaker was a coaxal speaker. also maybe i could rig it to run @ 4 ohms instead of 8 ohms. thnks for any help.
 
#2
I have never heard of a coaxial bass speaker. Are you sure it doesn't just have a wizzer cone like an Eminence Legend B102? Anywho, why not just buy a replacement? It would not necessarily need to be an exact match in order to still sound good.
 
#6
Putting in a different model of driver is a crapshoot. Could sound OK; could sound lousy. Since the cab is ported, you can actually damage the new speakers.

The smart thing is to use an exact Eden replacement.

As for the shop guy, he's a moron. You can pull out the head from that unit (I think it's a WT-330 or similar) and buy another cab if necessary!
 
#7
Rick Auricchio said:
Putting in a different model of driver is a crapshoot. Could sound OK; could sound lousy. Since the cab is ported, you can actually damage the new speakers.

The smart thing is to use an exact Eden replacement.

As for the shop guy, he's a moron. You can pull out the head from that unit (I think it's a WT-330 or similar) and buy another cab if necessary!
Click to expand...
All this.:bassist:
 
#8
dog1 said:
I have never heard of a coaxial bass speaker. Are you sure it doesn't just have a wizzer cone like an Eminence Legend B102? Anywho, why not just buy a replacement? It would not necessarily need to be an exact match in order to still sound good.
Click to expand...

This is wrong on every point!

As MM pointed out there ARE coaxial speakers designed for bass. The ideal speaker for that cabinet is the identical one that came out! Anything else is, as Rick opined, a crap shoot!

See if you can get the original reconed. Contact Eden and see what they say.

Paul
 
#10
In general - you would just got the driver re-coned. Most likely it is an Eminence. Maybe the Delta 12 LF ? I've never seen one of those in Co-ax but they did manufacture the 10 and the 15 from that series with a magnet drilled out out to accept a thread on 1" compression driver. See Bag End for an example...
 
#14
Disfiguredmetal, you're talking about running stereo, not bi-amped. (One might even say dual-mono). Bi-amping splits highs and lows across different type of cabs; it's done for big PAs where each cab is optimized for the job it does.

Running stereo might make sense if you've got some fancy effects, where you'd EQ the amps quite differently.

If you just want more overall volume, however, that's a clumsy way to accomplish it. If the SVT3Pro can't handle the job (with good cabs), then it's time to step up to something larger anyway.
 
#16
I had an cxc 210 c3 I think - 2-10s and one was a coax.
If the only evidence mr. amp guy had was a broken speaker after some years of use (could not find it on the Eden site) toss the amp guy. Call eden and ask for the oldest employee in the tech area (same strategy I use at the hardware store). See what s/he says. And I'd replace both speakers, if one goes now, the second will follow...

Plan B: measure the exact volume of the cab part, minus bracing, and start another thread here. You could end up with an unbelievable combo.

Red
 
#18
Rick Auricchio said:
Eden either builds their own drivers or has Eminence build custom ones. Either way, it isn't an off-the-shelf product.
Click to expand...

In some of those OEM cases, what makes it OEM is the sticker... marketing in other words. A way for Eden to differentiate itself (and sell replacement drivers for grossly inflated prices) as it does anythng else ...

drivers as tested, from the same batch can have HUGE swings in paramenters, not to mention that Eminence reserves the right to change materials and techniques as it makes sense - so which driver did they test ? was the driver itself broken in before the TS parms were printed ? or was it just off the line...

I've done the swap with a Kappa Pro 15 and a Bag End 15 from Eminence - the difference is inaudible... I nought a pair of S15-D's. 1 came with the Kappa Pro. I compared the two and - damn if I coukd hear ANY difference in the cab's. ...and the stock BE supplied Eminence is a Delta - not a Kappa ... and no, I'm not tone deaf :D

I replaced the Kappa Pro with a Delta 15 LF from Bag End and Eminence compression driver using the Bag End cross over to make the cab an S15X-D. I gave it a listen with just the 15 and ... same deal. There just isn't a lot of difference sonically. Price tag wise there is though. That 15 was $175 from Bag End, plus frieght as opposed to under a hun from Parts Express ...

Parrotting the conclusions of others is pretty easy. Actually getting your hands dirty doing some of it may lead you to your own conclusions.

Eminence may also be able to recommend a suitable recone kit for the driver - that is certainly worth a call. Reconing that driver remains the best bet IMO.
 
#20
Despite the outwardly simple elegance of the coaxial driver, getting decently smooth top end out of one is among the most complex crossover challenges I know of. For starters, the shape of the cone is wrong for a horn. Next is the coloration induced by the long "snout" that the compression driver fires through. Finally, the edge of the cone is about as bad as you can get for a horn mouth. Assuming the crossover designer has successfully juggled the tradeoffs necessary to deal with these challenges, if you change to a different driver (different frequency response curves, different impedance curves, different geometry) the odds are very much against the new driver working well with the crossover that was tailored for the old one.
 

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