I bought these brand new from authorized dealer, they are in excellent condition. Smoke free home. The F52 has two sets of binding posts.
Performa F52 Ported five-driver, three-way, floor-standing, magnetically shielded (L/R)
Drivers: 1" aluminum dome tweeter with proprietary waveguide, 5.25"organic ceramic-composite cone midrange, three 6.5" organic ceramic-composite cone woofers
Frequency response: 33Hz-18kHz, 0.5dB (typical, in-room)
Low-frequency extension: 23Hz, -10dB
Impedance: 6.5Ω nominal, 3.5Ω minimum at 373Hz
Crossovers: 4th-order @ 200Hz & 2.3kHz
Sensitivity: 87.5dB/2.83V/m (4pi anechoic)
Dimensions: 44" x 9.5" x 17.5" (HxWxD)
Weight: 88 lbs
Original Retail Price: $6998/pair (cherry, maple, black ash)
ASKING: F52 $2,250.00 OBO
*originally I had the c52 but it sold