Hi Glen,

Thanks for the lovely pics!

The 'horn' on the 2420 compession driver is not really a horn at all but just a diffraction device. It's just a piece of ~1/4" metal with a 1" hole on one side to mate with the driver throat and a 3/4" hole on the other side. That's it! I've no idea of the actual dispersion characteristics.

The only Westlakes I've heard were all JBL; 2231A's, 2440's & 2420's back from around 1978. Loved the bottom end, but the Westlake horns always seemed to have very vague localisation and a poor sound stage.

Cheers, Ralph