Zapco - Z-150.6 II - Class AB, 6-Ch Power 2Ω: 6 x 275W, 4Ω: 6 x 165W

The Zapco Z-150.6 II is a refined 6-channel Class AB amplifier engineered for those who demand both musical accuracy and raw system control. With 275 watts RMS per channel at 2 ohms and 165 watts at 4 ohms, it provides ample, distortion-free power for multi-speaker and active front-stage systems. Designed with Zapco’s legendary analog warmth and precision circuitry, this amp delivers superior clarity, imaging, and headroom — making it ideal for SQ competition or high-end custom installations.

• Model: Z-150.6 II
• Type: Class AB 6-Channel Full-Range Power Amplifier
• Power Output (RMS):
 • 4 Ω Stereo: 6 × 165 W
 • 2 Ω Stereo: 6 × 275 W
 • 4 Ω Bridged: 3 × 550 W
• Frequency Response: 10 Hz – 30 kHz (±1 dB)
• Signal-to-Noise Ratio: > 100 dB
• THD + N: < 0.05% at rated power
• Damping Factor: > 200 @ 100 Hz
• Input Sensitivity: 0.25 V – 8 V (variable)
• Input Impedance: 20 kΩ (balanced) / 10 kΩ (unbalanced)
• Crossover Network (per channel pair):
 • High-Pass Filter (HPF): 15 Hz – 4 kHz (12 dB/octave)
 • Low-Pass Filter (LPF): 30 Hz – 4 kHz (12 dB/octave)
 • Band-pass operation possible via combined filters
• Bass Boost: 0 – 12 dB @ 45 Hz (adjustable)
• Cooling System: Extruded aluminum heatsink with temperature-controlled fan
• Protection Circuits:
 • Thermal overload
 • Short circuit
 • DC offset
 • Over/under voltage
• Fuse Rating: 3 × 60 A
• Power Supply: Fully regulated MOSFET PWM design
• Dimensions: 20.0″ (L) × 8.5″ (W) × 2.5″ (H)
• Weight: Approx. 14.0 lb (6.4 kg)
• Included Accessories: Mounting hardware, user manual