Bi-amping ADS L-1590 or L-1290


I have looked around everywhere trying to find out how to bi-amp the ADS L-1590's without having to use the impossible to find PA1 amps. Has anyone done this with an external crossover?
abruceaudino
I have a pair of PA-1's that need some repair. Does anyone know any vintage repair shops that would have experience with the PA 1's? These puppies were hard to find I want to get them repaired correctly.
Try Richard So in Arizona, ads_speakers@yahoo.com. He should be able to help you, as he deals in a lot of stuff for a/d/s and repairs speakers.
Jhorsh, if you need info on biamping the 1290's or 1590's, I can help you. Contact me at: mr.mac42@yahoo.com
Alan (sid42)
Mkaz13, do you have the manual for the PA-1? I need to locate one, or a copy of it.
Alan