These sound as good as they look, and would be an excellent choice as mains for a home theater or a 2-channel system. Both internal subwoofer amplifiers had failed in these, so they have been converted to passive operation. Also included in the price is a Crown XLS 2000 stereo amplifier to be used for driving the subwoofers. The sub crossover frequency can be adjusted on the amp so you’ll be sending just the lower frequencies to the subs. ++ If you don’t need the Crown amp, and have your own or would prefer to use your AVR… you can deduct $200 from the listing price. Original MSRP $6200. PT800 Loudspeaker Specifications 3-Way Power: 50W - 250W Impedance: 8 Ohms Sensitivity (2.83V/1m): 91dB Frequency Response (+/-6dB): 80Hz to 22kHz Crossover Frequencies: 650Hz, 3200Hz High Frequency Transducer: 1 Pure-titanium dome with rubber surround, shielded, with EOS™ waveguide Midrange Transducer: 4 Titanium inverted dome with rubber surround and cast- castaluminum basket, shielded Low-Frequency Transducer: 8 Titanium-alloy inverted dome with rubber surround and cast-aluminum basket, shielded Baffle: IsoPower Ports: Sealed enclosure Networks: Straight-Line Signal Path™ (SSP™) Terminals: 5-Way, gold-plated binding posts Dimensions: 24 x 13-1/2 x 6 (610mm x 343mm x 152mm) (plus grille) Weight: 37 lb (17kg) PS1400 Subwoofer Specifications Passive Conversion (amps have been deleted) Sensitivity (2.83V/1m): 91dB Frequency Response (+/-6dB): 28Hz to 130Hz Crossover Frequency: 130Hz Low-Frequency Transducer: LE14H-3 14 Aquaplas cone woofer with rubber surround, 4 edge-wound copper voice coil and cast-aluminum basket Baffle: IsoPower Ports: Dual FreeFlow flared Terminals: 5-Way, gold-plated binding posts Dimensions: 19 x 20 x 15 (483mm x 508mm x 381mm) (plus grille and spike feet) Weight: 80 lb (36kg) Local pickup only up only Franklin MI