The Zapco Z-150.6 SP is a high-end 6-channel Class AB amplifier designed for audiophiles and professionals who demand premium sound quality and flexibility. Delivering 165 watts RMS per channel at 4 ohms and up to 275 watts per channel at 2 ohms, this amplifier provides exceptional clarity, warmth, and power for complex multi-speaker systems. With adjustable crossovers, precise tuning capability, and Zapco’s legendary analog sound character, the Z-150.6 SP is ideal for 3-way active front stages, full-range systems, or SQ competition builds.
• Model: Z-150.6 SP
• Type: Class AB 6-Channel Full-Range 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 configuration available
• Bass Boost: 0 – 12 dB @ 45 Hz (adjustable)
• Protection Circuits:
• Thermal overload
• Short circuit
• DC offset
• Over/under voltage
• Cooling System: Heavy-duty aluminum heatsink with smart thermal fan control
• Fuse Rating: 3 × 60 A
• Power Supply: Fully regulated MOSFET PWM design
• Dimensions: 20.0″ (L) × 8.5″ (W) × 2.5″ (H)
• Weight: Approx. 14.1 lb (6.4 kg)
• Included Accessories: Mounting hardware, user manual
• Warranty: Standard manufacturer warranty