Zacks 165.3.1A High Efficiency, 165mm, Peak Power 600W, RMS Power 300W

Technical Specifications:
Medium to high efficiency and dynamics,
pressed and treated cellulose cone,
canvas suspension,
basket painted with special anti-resonant paint,
50mm voice coil in Silver/Aluminium and Beryllium,
voice coil support in Composite Fibre,
Die-cast Aluminium Alloy basket,
central ogive in aluminium obtained from solid with numerical control, and superficially treated with magnesium,
Bearable power 600WRms,
gold-plated contacts,
810 gram magnet diameter 134mm thickness 14mm,
very high efficiency 95.30dB
FS 87.44Hz
B*L 10.13
QTs 0.34

Price is for 1 woofer