[You can now salvage un-salvageable OLA's]

Thanks so much Kent.  I'm sorry not to have known Carl.  His posts wreaked of knowledge and experience.  I'll check out PeterB's webpage.

Robert

[You can now salvage un-salvageable OLA's]

Carl,  I'm brand new to this site and have managed to pick up two pair of Large Advents, one is the NLA (paid $10 for the pair at a local thrift store and refoamed them myself) and the other is a later version without the switch. hey are marked 'ADVENT/1' on the terminal plate. (refoamed them as well).   I wondered if you could post a circuit diagram of your new crossover including connections to the woofer and tweeter.  It would really help my understanding.