Many thanks for all your valuable inputs !!

Finally it sounds like these 927's are a lucky find.

Quote Originally Posted by Earl K View Post
I entered some of the published parameters into WinISD Pro and allowed that program to automagically calculate those parameters that it felt it "needed" to "correct" ( ie; Qts ) .

Anyways, according to the results of that exercise , the 927-8A is a mid-90s db woofer that's sporting a heavier cone ( mms = 97 g ) / when compared to the typical Altec fifteen .

It appears to be someones answer to JBLs' 2225 SR woofer , though it's actually more like JBLs' 2234 HiFi woofer ( just not as dynamic ) .

<> cheers
Thanks a lot Earl K for taking the time to calculate with WinISD pro.

I have learned a lot reading your posts on LH and still learn here on this Altec User's board !!!

It is a coincidence but i have a 2 way DIY project with a pair of JBL 2234H. If the 927-8A can be used in the same enclosure i will be able to compare them.