We have a local auction site that does estate and farm sales and I occasionally scan it for music stuff. One auction last week had some interesting bass gear, including a Daion Power Mark XX MIJ bass, a Fender Bassman 100, and a few other older guitar amps. The Daion was interesting and I've always wanted to try a Silverface Bassman for bass so I bid on them and it looked as if I might win them, so I bid on a few other things that looked interesting, an old Peavey bass cab included. Long story short, the items I was most interested in went for way more than they were worth and I ended up getting the old Peavey for about $30 (+ the gas and time to go pick it up at the auction site, probably another $10 worth).
I didn't need a new cab, but for $40 invested, it's worth it just to try out and I figure, I can't really lose money on that.
The cab is listed as 4 ohm on the tag, but when I took the driver out for inspection, it tested on my ohm meter as 8 ohms. The driver is a stamped frame Eminence (speaker code "67") with a shiny aluminum dust cap (which made me think it was Black Widow equipped when I bid on it - there were no pics of the speaker removed from the cab).
I plugged it in to my trusty old GK 400RB and it sounds great, very "vintage" for lack of a better term. It did seem to be less efficient than my modern Ampeg SVT 1x15 cab, but I thought the sound was rounder and more organic, using the same settings. It was perhaps a little boomy, but there is not one stitch of stuffing so maybe something like that may be in order.
Anyhow, I thought I'd give my review of this old beast since I couldn't find much using a search. My bottom line is that I think this'd be a great deal at twice what I paid!