Here's a really dumb question - have you plugged them in? I don't know if they would even work if you didn't. I've never tried.
FWIW, my 2200's really needed a high current 200/400 SS amp to get them off the ground. I've never had the 4's but I believe Ferrari's comments.
BTW, lest you happen upon and want to buy an Acoustat Amp, don't assume that it will be ideal as suggested. One of the initial reviews of this amp commented on its current delivery and thought it was interesting that indeed it was not ideal for at least some Acoustat speakers. I think the speakers were the tall two's but my memory is poor for that kind of detail. Oh, more trivia. As I recall the design for the Acoustat amp was passed on to and used in one of the later Hafler amps. I think the designers name was Strickland. FWIW.
FWIW, my 2200's really needed a high current 200/400 SS amp to get them off the ground. I've never had the 4's but I believe Ferrari's comments.
BTW, lest you happen upon and want to buy an Acoustat Amp, don't assume that it will be ideal as suggested. One of the initial reviews of this amp commented on its current delivery and thought it was interesting that indeed it was not ideal for at least some Acoustat speakers. I think the speakers were the tall two's but my memory is poor for that kind of detail. Oh, more trivia. As I recall the design for the Acoustat amp was passed on to and used in one of the later Hafler amps. I think the designers name was Strickland. FWIW.