A friend gave me a huge Acoustst sub. It is designed to be used with some electrostats I assume, but can I use it with any speakers? It has the usual inputs and a pair of outputs for the main speakers. Thanks, John
If it's a SPW1 (and I don't think Acoustat made any other stand-alone sub, in any numbers), then it's got a dual-voice-coil Peerless 10" driver in a sealed box. Pretty effective, but not room-shatteringly loud. Very good sounding, though. Good response to the upper 20s Hz range in-room.
The SPW1 has stereo speaker inputs... I don't think it's got outputs for anything, IIRC.
Here is a bad photo. It is marked on the plate on back
"Spectra Passive Woofer"