SB-7218 Subwoofer

Frequency Range ¹
(-6 dB, Half space)
(-10 dB, Half space)

22–100 Hz
19–250 Hz

Maximum Output ²
Calculated Peak at rated power
Calculated Continuous

137 dB
130 dB

Impedance

4 ohms nominal

Maximum Input Power ³
(100 hours of 6 dB crest factor
IEC 268 noise spectrum)
(2 hours of 6 dB crest factor pink
noise, 50 Hz–20 kHz, AES method)
Recommended Amplifier Power

1200 watts continuous

1500 watts continuous

2600 watts continuous maximum

Sensitivity 2 V at 1 meter, half space

101 dB

Transducers

Two 18" (457 mm) 700-watt high-efficiency subwoofer transducers featuring 4" (100 mm) copper voice coils on Kapton formers

Recommended Processing

LF boost Freq. = 25 Hz
Q = 2.0
Gain = +6 dB 
provided by QSC, SF-3 or DCM

Connectors

Barrier strip screw terminals accept up to #10 AWG stranded wire

Enclosure

B6 alignment, vented enclosure with symmetrical port design, tuned to 25 Hz, constructed of MDF and heavily braced. Features vandal-resistant woofer mounting bolts.

Dimensions (HWD) inches

48 × 30 × 24

Dimensions (HWD) mm

762 x 1220 x 610

Weight

210 lb (95 kg)