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EVM 15L SIII versus EVM 15L SII

I have a pair of EVM 15Ls from a Mesa Boogie 2x15. One of the is damaged and needs to reconed. Upon removing the driver from the cabinet, I see it is labelled "EVM Model 15L SIII OEM". I have found recone kits for SII but I cant seem to find one for SIII, nor can I find anything out there that even mentions a SIII. Anyone know the difference, and if a SII recone kit is compatible with SIII? Thanks! -Rob
evm15LSIII.jpeg
 
That’s just a code, not a series 3.

the only factory kits available now (that I am aware of) are the pro line kits, there is no practical real world differences in the series 2 and proline as the increased power handling was more related to how the rating numbers were arrived at. There is slightly greater thermal power handling in the PL due to improved adhesives, but for bass guitar applications it’s not important.

find a real, pro recone shop and see if they can get factory parts. I don’t know how available they are currently.
 
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There's an company in Florida that has a stash of oem 15l cones. I recently refurbished about four of my old blown 15ls. They sound great. They have one less rib, but exactly the same in every other way. Tapered cone, etc. Sonics are identical. They do have the typical EV print on the underside of the cone. I'd get them while they last if you love the EV sound.
 
There's an company in Florida that has a stash of oem 15l cones. I recently refurbished about four of my old blown 15ls. They sound great. They have one less rib, but exactly the same in every other way. Tapered cone, etc. Sonics are identical. They do have the typical EV print on the underside of the cone. I'd get them while they last if you love the EV sound.
The original cones do not have one less rib. None of the varients that i am aware of (and are listed in the service docs) show any other configuration. there was a ribless cone made for the L (that wasn't a B cone) but that wasn't for the series 2 or pro-line. It was the original SRO that became the very first EVM-15L, but those are very rare (I've never seen one). Also, a tapered cone (conic section) is not correct either, the L uses a curvalinear cone which is an exponentially curved surface.

The speaker repair world, just like the tube world, is full of misrepresentation, cheats and counterfeits. The "one less rib", and "taper" screams misrepresentation, though if it sounds good to you it's fine for your needs. With my customers, if it's an aftermarket part (sometimes necessary if the original part is no longer available), it's represented as such and is thoroughly tested to be sure it's reasonably close to the performance of the original.

There are some drivers that do not have suitable aftermarket parts available and the original part doesn't exist. For these, it's a total crapshoot and I usually avoid this unless the customer is on board to take the risk.
 
The original cones do not have one less rib. None of the varients that i am aware of (and are listed in the service docs) show any other configuration. there was a ribless cone made for the L (that wasn't a B cone) but that wasn't for the series 2 or pro-line. It was the original SRO that became the very first EVM-15L, but those are very rare (I've never seen one). Also, a tapered cone (conic section) is not correct either, the L uses a curvalinear cone which is an exponentially curved surface.

The speaker repair world, just like the tube world, is full of misrepresentation, cheats and counterfeits. The "one less rib", and "taper" screams misrepresentation, though if it sounds good to you it's fine for your needs. With my customers, if it's an aftermarket part (sometimes necessary if the original part is no longer available), it's represented as such and is thoroughly tested to be sure it's reasonably close to the performance of the original.

There are some drivers that do not have suitable aftermarket parts available and the original part doesn't exist. For these, it's a total crapshoot and I usually avoid this unless the customer is on board to take the risk.
The curve is the same. The taper is in the cone thickness. I have a gone through a couple of aftermarket recones. They all sound different. This one is indistinguishable. I think it might be the EVl iii. It was described as a late production run.
 
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That’s just a code, not a series 3.

the only factory kits available now (that I am aware of) are the pro line kits, there is no practical real world differences in the series 2 and proline as the increased power handling was more related to how the rating numbers were arrived at. There is slightly greater thermal power handling in the PL due to improved adhesives, but for bass guitar applications it’s not important.

find a real, pro recone shop and see if they can get factory parts. I don’t know how available they are currently.

I had a Mesa Boogie Road Ready 1x15 loaded with an EV Proline 15L back when I was younger and could schlep an 85 pound bass cabinet. It was totally the bomb, though. I cannot imagine a better performing and sounding 1x15.