ZERO 12 S4 XZ-B

ZERO Series subwoofers are shallow-mount marine subs engineered for strong bass in compact sealed enclosures or OEM-style replacement installations. This SKU is configured with black finish.
Designed to add low-frequency output to marine audio systems.
Available through Chesnut Tech for marine audio upgrades and installation planning.
SKU: ZERO 12 S4 XZ-B
Product highlights
400W RMS / 800W peak
25 Hz - 2 kHz frequency response
shallow 3.72-inch mounting depth
Fitment guidance from Chesnut Tech
Choose this subwoofer path around enclosure fitment, impedance, amplifier power, and the bass output goal for the boat. Confirm available space and wiring before ordering.
The goal is stronger low-frequency output without guessing on impedance, enclosure needs, or amplifier matching.
Order/reference SKU: ZERO 12 S4 XZ-B
Send your boat year, model, tower, current audio package, and install goal if you want confirmation before ordering.