Quote Originally Posted by rusty jefferson View Post
And that's the difficulty using them. Their inherently high output impedance and inability to deliver current means they want to see absolutely benign speaker impedance, not just high efficiency. Using the Altecs with SET should be fine. Most of the newer JBL systems aren't going to play well with SET amplifiers unless actively implemented.
Yes I am not looking at JBLs, though the JBL 2220a woofers work great with the TAD 4003 and 300b amp in a friend's system. However his system is too big, and therefore I am more looking for something in the size of an A5, TAD 2404, etc, but in DIY people could have many good ideas, one doesn't know it till one hears it. However, in order to check how it sounds, I do need to use analog, and prefer SETs. Low watt push pulls like EL84s, or push pulls from 300bs and 2a3s etc, would work too.