Plane-wave tubes & home permanents

[bfish]

If one wanted to compare a range of similar diaphragms to look at their own intrinsic non-horn-related, small signal properties, wouldn't a plane-wave tube be the best method?

Anybody know how to size a PWT for small-format Altecs? Or where to learn?

[donaldpatten]

bfish:

How would you couple a small driver to a large horn ? Consider the PWT as the horn.

Ref : AES Electronic Library: Building a Plane-Wave Tube: Experimental ...
The design, building and testing of a plane-wave tube for measurements of compression drivers are described. Testing the device, the acoustical properties ...
www.aes.org/e-lib/browse.cfm?elib=12097 - Similar pages

Don

[bfish]

Thank you, Don!

That one's not among what I already have, have to get out the VISA. Looks like a good one for some snow days, and I'm not in any hurry for that.

I'll update when I get it grokked.