Głośnik FOCAL 11V5552 z subwoofera aktywnego focal chorus sw800v,najprawdopodobniej występował też w innych modelach,na pozostałych aukcjach więcej tego typu sprzętu

25 cm bass driver with high quality cone. The basket is made of die-cast. To avoid compression effects the driver possesses a pole piece hole. The spider is rear ventilated for better cooling.

• resonance frequency fs = 40,46 Hz
• impedance R = 4 Ohm
• sound pressure level SPL = 86,4 dB (2,83V; 1m)
• DC resistance Re = 3 Ohm
• force factor BL = 11,56 N/A
• effective piston radiating area Sd = 330,06 cm2
• effective mechanical mass incl. air load mms = 98,12 g
• equivalent volume of compliance Vas = 24,13 l
• total Q factor Qts = 0,5 (Qms=4,44, Qes=0,56)
• mounting diameter d = 228 mm
• overall diameter d = 270 mm
• mounting depth (not countersunk) t = 137 mm
• mass m = 4,3 kg