4435 used with external crossover
Hi Peter,
a pleasure to (try) to help you....
you can use 2 identical amps for all channels.
Minimum power should be 200W p/ch for a kick ass bass.
Don't be afraid of a to high power for the high frequency unit ,I guess 2426J or 2421J, (interesting to know). When you switch on the terminal plate of your 4435 to "external" there are still passive parts in the circuit which handle the power in a right way also for the high frequency driver. When I found the schematic.....I will post it (N3135).
Additionaly I can tell you, when used in "external" crossover mode, the L-pads in the front of your speakers are also usable. The + wire for the heights then "crawl" through a cap with 2.5uF then through an ind with 0.04mH before they reach the resistors with 20 Ohms (in line) and 10 Ohms (parallel) to the high driver.
Hope this helps a little.
regards
HP