James Passive 21" Subterranean Direct Burial Subwoofer, 4Ω, Black

The JAM-ST21-4 21" subterranean subwoofer from James Loudspeaker has been developed for high SPL bass output in outdoor applications. It features a powerful 21" transducer for maximum excursion and SPL. This subterranean subwoofer provides the perfect solution to integrated outdoor audio.The JAM-ST21-4 21" subterranean subwoofer from James Loudspeaker has been developed for high SPL bass output in outdoor applications. It features a powerful 21" transducer for maximum excursion and SPL. This subterranean subwoofer provides the perfect solution to integrated outdoor audio.

Due to the high power handling of the JAM-ST21-4, no 70V version is available. This subwoofer can be directly driven by an M1000 subwoofer amp which produces 70V of output, or 1000W+ at the 4Ω rating. In all applications, the JAm-ST21-4 should be bi-amped.

This subwoofer also is quite heavy, so four eyebolts are located on the top to allow the subwoofer to be lowered into the ground.

Rather than simply putting a subwoofer somewhere where it compromises the aesthetic of the landscape, these direct burial subwoofers eliminate the need for an exposed bulky enclosure by hiding the main portion of the subwoofer underground. By using a bandpass box design, these water tight, weather proof speakers deliver deep powerful bass and a subdued visual effect. The JAM-ST21-4 exposes only a small hooded port.

Each of these incredible subwoofers comes equipped with one of James' proprietary aluminium cone woofers enclosed in a sealed aluminium enclosure with a heavy powder coat. These subwoofers complete the James Loudspeaker landscape audio system package, delivering the high quality outdoor audio experience you've been looking for.

Please Note: At 1000W, wire loss needs to be considered and calculated as with any other 4Ω wire run.

Specification

Features

• Developed for high SPL bass output for outdoor applications
• Features a powerful 21" transducer for maximum excursion and SPL
• The JAM-ST21-4 can be directly driven by an M1000 subwoofer amp which produces 70V of output, or 1000W+ at 4Ω
• Four eyebolts are located on the top to allow the subwoofer to be lowered into the ground
• Direct burial subwoofers eliminate the need for an exposed bulky enclosure
• Water tight, weather proof speakers deliver deep powerful bass and a subdued visual effect