Parasound ZM 2 - Power Amplifier

A compact 2-channel amplifier built for zone and multi-room installations, delivering 120W per channel at 8 ohms with high current for stable operation down to 2 ohms. Its 1U, half-width chassis fits neatly into equipment racks alongside other zone gear, with built-in subwoofer output for in-wall or in-ceiling systems.

• Class AB input stage with premium Class D power stage for efficient, clean amplification
• Audio-sensing auto-on plus 12V trigger input, with looping 12V trigger output for daisy-chaining
• Mono mode combines L and R channels for single-speaker applications
• Speaker-level input for expanding systems without pre-out jacks, plus looping output for additional amplifiers
• Full-range and 80Hz low-pass mono RCA outputs, with a built-in 80Hz filter in bridged mode for driving in-wall/ceiling woofers or passive subs
• Separate level controls for both channels
• Detachable speaker connectors accept up to 12-gauge wire
• Short-circuit and overheat protection with front-panel indicators
• Optional "ZRK" rack mount kit available separately

Power Output
120W × 2 @ 8Ω · 150W × 2 @ 4Ω or 2Ω

Frequency Response
20Hz–20kHz (+0/-0.25dB) · 5Hz–50kHz (+0/-3dB)

Total Harmonic Distortion
<0.05% typical, <1.0% at full power

Interchannel Crosstalk
70dB at 20kHz

Input Sensitivity
700mV for full output (50W @ 8Ω), 29dB total gain at max level

Signal-to-Noise Ratio
>112dB, IHF A-weighted

DC Trigger
+9V to +12V DC, 2mA

Audio Trigger
2mV audio signal

Power Requirement
300W max, 30W typical, 15W idle, 0.5W standby; 100–250VAC 50/60Hz auto-sensing

Dimensions
8.5" W × 10" D (12" with cables) × 1.75" H (1U)

Weight
4.3 lbs net (2.0 kg)