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81ST4 - 8" Subterranean Subwoofer (4 ohm)

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The 81ST4 is the second in our line of mini landscape subwoofers designed for local zone bass performance. It can be configured with 1 satellite speaker as a mono channel, 2 satellite speakers as a 2.1 stereo or with multiple satellite speakers in small patio areas. James’ subterranean subwoofer’s direct burial, 8” compression band pass design creates unrivaled low end frequency response. External hooded port, aircraft/marine grade aluminum enclosure and stainless steel hardware provide for increased protection in extreme weather. This unit is also available in an 8 Ohm or 70V version. Made in the USA

Specifications
Frequency Response

28-180Hz +/-3dB

Nominal Impedance

4 ohms

Sensitivity

87dB 2.83V/1m

Recommended Power Range

50 - 350W

Woofer

(1) 8" (203mm) Aluminum

Enclosure

Aircraft Marine Grade Aluminum

Finishes

Black

Height

10.95 in (278.13 mm)

Width

10.5 in (266.70 mm)

Depth

10.5 in (266.70 mm)

Net Weight

20 lbs (9.07 kg)

Product Documents

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