Yesterday I was out junkin and picked up a pair of Isophon speakers. These are a three way (I think, you'll see what I mean) and use the Isophon P30/31/10 12" drivers in a 2.5+/- cf BR enclosure. Above that are a pair of Tonegen TW26 cone tweeters and then there is a Pioneer PT-3 horn tweeter. The Isophons and Pioneers work but the onegens are dead (I think).

Now I haven't bee able to get at the XO (yet) to tell whats going on. Obviously the Isophons are a hi-e driver. Does anybody have the T-S params on these by chance?

The cabinets are in decent shape still an can be brought back with a little elbow grease. After listening to these and playing with some tweeters and XO points, I'm half tempted to gut the Tonegens and Pioneer and drop a horn (about 800 Hz) above the Isophons.

Anybody have any experience with these drivers? That and can anybody recommend a decent (affordable) horn and compression driver that might blend well above the Iso's?

TIA,
Scott F.

For T/S specs, you might check here:

• Thiele-Small Loudspeaker Database

Any suggestions for an affordable horn and driver? I was looking over at MCM and they have a couple that look interesting but they sure don't give any details on them. Or would I be better doing the vintage eBay thing?

Thanks.
Scott F.

For 500Hz, you'll need to move to a 2" driver on a horn like the JBL 2380 or Eminence T12000. Martinelli makes a 21" horn for 2" exit compression drivers that's real nice.

You might also consider Altec 811 and 511 horns. The 811 is for 800Hz up and the 511 is for 500Hz up.

Thanks for the help Wayne!

Regards,
Scott F.