Zapco - ST-1000XM III - Class D, Mono Power 1Ω: 1 x 1000W, 2Ω: 1 x 700W

• Model: ST-1000XM III
• Class: Class D (Mono / single-channel)
• Power Output:
 • 1,000 W × 1 @ 1 Ω
 • 700 W × 1 @ 2 Ω
 • 450 W × 1 @ 4 Ω
• Total Harmonic Distortion (THD): < 0.2% at rated power
• Signal-to-Noise Ratio: > 85 dB
• Efficiency: > 85%
• Frequency Response: 10 Hz – 200 Hz (±1 dB)
• Input Sensitivity: 0.25 V to 5 V
• Features / Controls:
 • Variable input gain
 • Variable electronic crossover
 • Subsonic filter
 • Bass boost (variable)
 • Phase selector
 • Option for remote level control (dash mount)
• Physical Dimensions (Net): ~ 130 mm × 58 mm × 350 mm
• Overall Dimensions (with end caps): ~ 130 mm × 58 mm × 375 mm
• Use Case: Ideal for powering subwoofers or mono output in compact or high-power audio systems