other uses for toroid output autoformers?

Zero Cool

Paid Member
2004-09-20 6:10 am
I have at least 4 if not more autoformers removed from junked PA power amps. 2 are Crown and 2 are QSC and both were 200wpch so these are pretty hefty toroids.

These were used to convert the standard amp output to a high impedance output for driving 70V or 100V distributed line systems. so these have an 8ohm rated input and a 4ohm/70V/100V output typically. I have no idea what they actual specs are but they would be pretty wide bandwidth typically.

should i scrap these or do they have a use??