2405 UHF Clones

[witoman]

I bought a pair of Acoustician 1205 slot UHF drivers off eBay a while back. The seller said that these were manufactured to be clones of the JBL 2405 (or 077) slot driver. There is virtually nothing on the net about Acoustician drivers, let alone the 1205.

Does anyone know something about this driver?

[hjames]

umm, If they aren't JBLs (and they aren't) just assume they are cheap clones??

Acoustician doesn't return any "brand info" in the first 6 pages

http://www.google.com/search?hl=en&q...an&btnG=Search

I bought a pair of Acoustician 1205 slot UHF drivers off eBay a while back. The seller said that these were manufactured to be clones of the JBL 2405 (or 077) slot driver. There is virtually nothing on the net about Acoustician drivers, let alone the 1205.

Does anyone know something about this driver?

[louped garouv]

fostex made some really nice ring radiator clones.....

maybe these are nice too?

hard to tell via photo IMO

[KromeDome]

I bought a pair of these a long time ago that were brand new and sold as "non-working". They both tested as a dead short, so I opened them up to check out why. As expected, it turned out that both were so thrown together that all four lugs from the clone diaphragms were jammed against the magnet assembly. While I had them apart, I noticed that the throat casting was not symmetrical, and that the phase plug was off center in relation to it by quite a bit. Now I have never had genuine 2405s apart, but I assume that the phase plug sits firmly in the center of a symmetrical throat.

I tested them after fixing the shorts, got some sound, and put them away where they have been sitting now for 12-13 years. I do remember being pretty disgusted by the whole experience. For fun, I'll dig them out and take a couple of photos of the internals if I get some spare time in the next couple of days.

I bought a pair of Acoustician 1205 slot UHF drivers off eBay a while back. The seller said that these were manufactured to be clones of the JBL 2405 (or 077) slot driver. There is virtually nothing on the net about Acoustician drivers, let alone the 1205.

Does anyone know something about this driver?

[witoman]

Thanks, that would be interesting.

[witoman]

I would especially like to know is if the 2405 diaphragm kit, D16R2405, could be used in this driver.

[KromeDome]

A couple of different angles to see the asymmetry of the casting.

[KromeDome]

The mylar looks black in these shots, but is actually silver.