LIKE NEW B&W BOWERS & WILKINS 683 S2 FLOORSTANDING SPEAKERS

B&W BOWERS & WILKINS 683 S2 FLOORSTANDING SPEAKERS. WORKING, EXCELLENT SOUND. LIKE NEW CONDITION. Specifications Type: Three-way vented-box floorstanding loudspeaker Drive Units 1" aluminum dome high-frequency 6" woven Kevlar cone FST midrange 6.5" aluminum cone bass, two quantity Frequency Response: 52 Hz to 22 kHz (±3dB on reference axis) Dispersion: Within 2dB of reference response Horizontal: Over 60º arc Vertical: Over 10º arc Sensitivity: 89dB/W/m at 8 Ohms Crossover Frequencies: 400Hz and 4kHz Dimensions: 38.8" x7.5" x 14.3" (HxWxD) Weight: 59.7 lbs. Price: $1650 per pair. Design Bowers & Wilkins (B&W) 683 S2 Floorstanding SpeakersThe 683 S2s are a three-way design, with two 6.5" aluminum cone bass drivers, a 6" Kevlar midrange, and a 1" aluminum dome tweeter. The tweeter is common to all the 600 series. It is mechanically decoupled from the cabinet, which was and is the idea used in B&W’s classic Nautilus designs with the tweeter on top, but now done in a baffle-mounted driver via a gel that allows the magnet to float, so to speak. The tweeter also uses a second aluminum outer ring whose goal is to minimize the breakup mode of the unit. The Kevlar midrange unit is continued from the earlier 600 series, though it originated in the high-end 800 series. The new bass driver also uses a second outer aluminum ring for additional rigidity without weight and resonance problems, as well as a new dust cap that pushes break-up above the crossover frequency. The specified efficiency is 89dB/W/m at 8 Ohms. In the real world, the 683 S2s are very efficient. B&W recommends at least a 25 watt amplifier; while my Music Reference is more powerful than that, I just never had to turn it up far to fill the room with music.