Chuck, Thiel rates the 3.5's as having a 4 Ohm nominal, 4 Ohm minimal load. I have seen two independent tests that both show this to be pretty accurate. Both tests show a slight peak at about 33 Hz where the impedance rises to between 8 and 10 Ohms and basicaly flat across 4 Ohms the rest of the way. The testers attributed the peak to the sealed box resonance. I agree with you that Thiel's present a constant steady load with out the peaks and valleys most speakers present. Most amplifiers appreciate this kind (of) load. That the 3.5's don't drop below 4 Ohms is even easier on amps. It's the demands of the equalizer that concerns me. I'm sure you are aware that your 3.6's dip into 2 Ohms will require an amps 8 Ohm rating to double down twice to provide the appropriate power. If I am corect in my assumption(?) the equalizer's 12 db push will require the amp to double out(?) 4 X to provide appropriate power. That might be like a -2 Ohm power requirement (not really, but you get the idea). If my assumptions are correct(?) then perhaps Thiels maximum recommendation, may be their best. I take that to mean 500 watts into 4 Ohms. C-J has quoted different opinons on their 4 Ohm rating to me at different times. Once it was "we don't offer 4 Ohm ratings on our solid state amps". Once it was "close to to doubling down". Once it was "close to 400 watts". Once it was "480 watts". Well what it is it? This inquiring mind would like to know. Mind you I have been using c-j solid state pre and power on Thiels CS 2's for years and have always recieved very good customer service from c-j. I don't have an axe to grind, I'd just like to have needed information to make informed choices.
