3 Attachment(s)
Help identifying these horns and drivers?
I was driving my daughter to choir practice today, and I saw these out on the curb:
Attachment 48273Attachment 48274Attachment 48275
The former owner agreed that they were free for the taking.
They're covered with grey latex paint, and I discovered (aargh!) that isopropyl removes the paint but also dissolves the decals.
All three drivers have "Altec Lansing" (no Corporation, no Hollywood) in relief on the backs. I'm happy to open up the driver cases if I know what I'm measuring / looking for.
I need to get some big crossover caps to roll off the low end before I can test these, which means I'm doubly in suspense.
Where do I start?
Thanks a lot!
-Fritz
Listen first then disassemble.
I always do it the other way around and regret it.
A nice set of drivers and horns perhaps a 203 and a pair of 805?
http://lansingheritage.org/images/al...pro/page_8.jpg
http://lansingheritage.org/images/al...pro/page_9.jpg
Very nice score, enjoy.
:bouncy:
Thanks! / What crossover slope at 300Hz?
Thanks for that extremely-detailed reply!
I verified (with a fistful of paralleled crossover caps and a low-power amp cranked way down) that all the drivers play music.
What crossover slope am I looking for if I'm going to cross at 300Hz?
(Now I have appropriate horns for those 71A amps I've been wanting to build!)
Thanks again,
-Fritz
Depends on the application
Quote:
Originally Posted by
fritzbogott
What crossover slope am I looking for if I'm going to cross at 300Hz?
(Now I have appropriate horns for those 71A amps I've been wanting to build!)
-Fritz
300hz at 12db/oct if the wattage is low, like 5 watts or less.
Tubes amps are best for these horns and drivers!
Ron
I'm planning to use an LR4 active XO, so polarity shouldn't be an issue. <nt>
"No Text". The message title is the whole message. <nt>
Sounds good. I'll let you know.