U.S. Amps Xterminator XT8

Original price was: $409.99.Current price is: $209.99.

Xterminator XT8 – 8″ SPL Subwoofer – 1,000W RMS

The Xterminator XT8 is your small-frame, big-output hammer. Designed for tight, violent bass in compact enclosures, the XT8 uses a carbon fiber cone and dust cap, quad spider suspension, and a high-roll stitched surround to keep the 3″ coil under control at extreme power. Perfect for serious daily setups where space is limited but you still want real SPL performance.

Parameter Metric Value Imperial / US Value Units
Piston Diameter 153 mm 6.02 in Length
Fs (Resonant Frequency) 54.84 Hz 54.84 Hz Frequency
Re (DC Resistance) 6.537 Ω 6.537 Ω Resistance
Zmax (Max Impedance) 56.3 Ω 56.3 Ω Resistance
Qms (Mechanical Q) 5.266 5.266 —
Qes (Electrical Q) 0.6918 0.6918 —
Qts (Total Q) 0.6115 0.6115 —
Vas (Equivalent Volume) 3.17 L 0.112 ft³ Volume
Le (Voice Coil Inductance) 4.158 mH 0.004158 H Inductance
nâ‚€ (Efficiency) 0.07208 % 0.0007208 Ratio
SPL (Sensitivity) 80.68 dB 80.68 dB dB (1W/1m)
Mms (Moving Mass) 130.8 g 0.288 lb Mass
Cms (Compliance) 6.4e-05 mm/N 3.66e-04 in/lb Compliance
BL (Motor Strength) 20.64 T·m 20.64 T·m Motor Force
K(r) 10.08 10.08 —
X(r) 0.1709 0.1709 —
K(i) 257 257 —
X(i) -0.1106 -0.1106 —

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Description

Xterminator XT8 – 8″ SPL Subwoofer – 1,000W RMS

The Xterminator XT8 is your small-frame, big-output hammer. Designed for tight, violent bass in compact enclosures, the XT8 uses a carbon fiber cone and dust cap, quad spider suspension, and a high-roll stitched surround to keep the 3″ coil under control at extreme power. Perfect for serious daily setups where space is limited but you still want real SPL performance.

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