21" Subterranean Subwoofer, 4-ohm Impedance

Series: ST

Model: 211ST4

Water-tight, weather-proof design
Provides the perfect solution to integrated outdoor audio
Delivers deep powerful bass and a subdued visual effect, exposing only a small hooded port
Equipped with one of our proprietary aluminum cone woofers enclosed in a sealed aluminum enclosure with a heavy powder coat

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The 211ST 21" subterranean subwoofer was developed for high SPL bass output outdoor applications. It features a powerful 21" transducer for maximum excursion and SPL. Due to the high power handling of the 211ST, no 70V version is offered. The 211ST can be directly driven by an M1000 subwoofer amp which produces 70V of output, or 1000W+ at the 4ohm rating. However, at 1000W, wire loss needs to be considered and calculated as with any other 4 ohm wire run. In all applications, the 211ST should be bi-amped.

Water-tight, weather-proof design
Provides the perfect solution to integrated outdoor audio
Delivers deep powerful bass and a subdued visual effect, exposing only a small hooded port
Equipped with one of our proprietary aluminum cone woofers enclosed in a sealed aluminum enclosure with a heavy powder coat

Spec Sheet available - Yes

Height: 24 in
Depth: 24 in
Width: 24 in
Product Weight: 220 lbs
Color: Black
Speaker Diameter (Driver): 21 in
Maximum Frequency Response (Bandwidth): 120 Hz
Maximum Frequency Response (Bandwidth): 0.12 kHz
Minimum Frequency Response (Bandwidth): 18 Hz
Minimum Frequency Response (Bandwidth): 0.02 kHz
Finish: Black
Impedance: 4 ohm
Sensitivity: 91 dB

211ST_20170705.pdf 2198033 kb - Data Sheet

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