Three-way bass reflex floorstanding speaker

LF : 25cm (10 in.) x 2
Midrange/Tweeter: concentric
16 cm (6 1/2 in.) MF / 3.5 cm (1 3/8 in.) HF

Frequency response : 21 Hz to 100 kHz (-10 dB)
Crossover frequencies: 250 Hz and 2 kHz
Unit polarity: LF (+), MF (+), HF (+)
Amplifier requirements: 50 W to 300 W
Sensitivity: 90 dB (2.83 V/2.83 V @ 1 m free space)
Maximum sound pressure level : 115 dB
Nominal impedance: 4 Ω (minimum 4.1 Ω)

Weight: 150 kg (330 lb)
Dimensions: 554 mm (21 3/4”) (W) × 1,293 mm (50 7/8”) (H) × 698 mm (27”) (D)