Zapco - ST-4XP SQ III - Class AB, 4-Ch, SQ Power 2Ω: 4 x 250W, 4Ω: 4 x 150W

• Model: ST-4XP SQ III
• Channels: 4 (Full-range Class AB)
• Power Output:
 • 250 W × 4 @ 2 Ω
 • 150 W × 4 @ 4 Ω
 • Bridged: 500 W × 2 @ 4 Ω
• Total Harmonic Distortion (THD): < 0.5% at rated power
• Signal-to-Noise Ratio: > 90 dB
• Frequency Response: 15 Hz – 30,000 Hz ±1 dB
• Input Sensitivity: 0.25 V – 5 V
• Features:
 • RCA and speaker-level inputs
 • Variable input gain
 • Variable electronic crossover
 • Variable bass boost
 • Thermal / short-circuit protection
• Construction: High-quality AB topology with robust heat dissipation
• Dimensions (chassis): ~ 200 mm × 65 mm × 350 mm
• Overall Dimensions (with end caps): ~ 200 mm × 65 mm × 380 mm