I have owned 3 pairs of Acoustat 3's, one pair of 4's, 2 pairs of Model 33's, one pair of Model 3300's. The Acoustats were a 4 ohm speaker that would dip to 2ohms around 14k hertz. No problem. If unplugged, of course there will be no sound output. If unplugged for a few days, they need to be powered on (capacitors charged) at least one full day before they reach their sonic potential (good sound). Of course they will play after charging one hour, just don't expect great sound. I drive them with PASS Labs X250.5 amp (250wpc 8 ohms, 500wpc 4 ohms.
Need Help with Acoustat Model 4 speakers
I bought these Model 4 speakers with the Mk 121 interfaces on a whim. They aparently are in need of service as they play very softly, with the receiver volume needing to be cranked up just to hear them. Would appreciate any thoughts on these, really regret the purchase at this point.