I've been using a 23.5 for the last year and a-half to drive a pair of Thiel CS3.6 speakers. These speakers have a nominal impedence of 4 ohms. The amp has no problem playing these speakers as loud as you would ever want. If you can find one on the A-gon, you won't be disappointed. I'm not sure it is worth spending so much money (probably twice as much cash) to go with the 336.
