Altec 811B Horn identification

[ckastner78]

I'm trying to figure out what the drivers on these Altec horns I picked up are. All it says is 54-495 High Frequency Driver. Titanium Diaphragm. I don't see any other identifying marks or brand of any kind, but they're obviously not the original Altecs. Anyone have any idea what these are? Here's some pictures:

Picture 1
Picture 2
Picture 3

 

[mhardy6647]

I am guessing from that catalog number that the compression drivers are sourced from MCM Electronics.
http://www.mcmelectronics.com/browse/Speaker-Components/0000000210

54-495 isn't a current MCM number, but I do see some midrange drivers with catalog numbers starting with 54:
http://www.mcmelectronics.com/browse/Midranges/0000000232

 

[Goodwill_HiFi]

I'm guessing Radian, but I don't find anything with Google. I don't know if they do/did Ti diaphragms.

 

[mhardy6647]

They look too generic to be Radians to me... but I am far from an expert.

When I think of Radian drivers, I think of something more like this...

 

[ckastner78]

Here's a few more pictures. I took the compression driver off the horn to get a better look at the mount and see if there was anything else to identify it. I think MCM might be the answer. I saw the two / three bolt mount on a few other of their drivers and the XX-XXX model number seems to match up.

Picture 4
Picture 5
Picture 6

Any other ideas? Thanks for all your help!

 

[ckastner78]

Wait a minute, scratch that. The model number lines up with MCM, but the mount actually looks like a Pyle - like this one:

http://www.mcmelectronics.com/product/53-735

Of course this driver seems to be a lot larger than any of the ones I'm seeing on MCM. Hmm.. :scratch2:

 

[dgwojo]

Zomax brand? :scratch2: Might be a one-time offering/buyout from MCM.

 

[Goodwill_HiFi]

That's a new Radian, Though....... don't you think the covers look a bit similar?

They look too generic to be Radians to me... but I am far from an expert.

When I think of Radian drivers, I think of something more like this...

 

[ckastner78]

Hmm, looks similar to the Radian - at least the aluminum end piece with the rubber around it. The back is totally different though - 4 bolts instead of 3 and a recessed area for the speaker terminals - which are right next to eachother. I've never heard of Zomax - I'll have to google that one.

 

[bowtie427ss]

Chinese supplier to the pro and OEM pro market. They've been around quite a while. JBL "Control" monitors in the plastic cabinets are a Zomax product.

http://www.zomax-audio.com/home.php