[dump]Well, a lot of this is off the top of my head, and might not be all inclusive. There were many True Subwoofers, and then some others that were dominators or architectural or whatever. The real True Subwoofer always had the distinguishing characteristic of the 2700 Watt plate amp. THere were the Signature ones that had a 12" active radiator and a 12" passive. The normal ones (like mine) had a 10" pair (one active/one passive). The original was superseded by the Mk.II (like mine) which was superseded by the Mk.IV (I don't know of a Mk.III). AFAICT, these are all the same, spec wise, just 10" or 12" based on non- versus Signature. Next came the EQ versions (something I'd like very much) that had a built in electronic equalizer program with a calibrated mike. You'd plunk the subwoofer down in the place you wanted it, put the mike in your listening position and start the program that would emit a bunch of grunts out of the subwoofer and adjust its frequency response to flat. THese came in non- and Signature models too.[/dump]
It should sound like it isn't there!
There is a difference between hearing and listening...
Making life enjoyable through expensive electronics.
Carver: C-4000 & C-1 preamps, PSC-60 preamp/tuner, TX-11a tuner, M-400 (2), C-500, M-500, M-500t, M-500t Mk.II, A-500x, AL-III loudspeakers (2 pr.)
Sunfire:Theater Grand III processor, Ultimate Receiver, Cinema Grand Signature 400 ~ seven, True Subwoofer Mk. II, D-10 Subwoofer