



The PQM series power amplifier is the flagship product of Shengzhun in the SMPS power amplifier category. The most advanced technology in the power amplifier industry, coupled with over 25 years of technical engineering research and development, enables the PQM series, featuring two rack units of power amplifiers, to deliver immense power density, providing customers with the ultimate sound experience (with the highest power PQM13 delivering 2500W per channel at 2Ω). This exceptional performance and ultimate efficiency, coupled with SMPS regulated power supplies and Acoustiguard’s patented Class I™ power amplifier module, elevate the PQM series to a world-class standard for sound reinforcement applications in touring performances
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- Powered by SMPS.
- High-efficiency Class I™ power module.
- It can maintain maximum stability even under continuous full-power operation with a 2Ω load.
- XLR input socket, SpeakON NL4 output socket.
- High-sensitivity CMRR balanced input enhances noise suppression.
- The rear panel features an input sensitivity selection.
- The back panel offers three connection modes for setting (stereo/bridge/parallel).
- The back panel has a pressure limit switch.
- High-end applications such as medium-to-large bars, large stadiums, cinemas, and theaters.
- Professional applications such as large-scale performances and line array system sound reinforcement.
| Model | PQM8 | PQM13 |
| Power (AC 220V / 50Hz. ±10%, all channels under load test simultaneously with THD+N=1%) | ||
| 8Ω stereo power | 800Wx4* | 1300Wx4* |
| 4Ω stereo power | 1400Wx4** | 2100Wx4** |
| 2Ω stereo power | 1600Wx4** | 2500Wx4** |
| 8Ω bridge power | 2800x2** | 4200x2** |
| 4Ω bridge power | 3200x2** | 5000x2** |
| Other parameters | ||
| Frequency response | 20Hz-20kHz (+0/-1.5dB) | 20Hz-20kHz (+0/-1.5dB) |
| Total harmonic distortion | ≤ 0.05% | ≤ 0.05% |
| Signal-to-noise ratio (A) | ≥ 80dB | ≥ 80dB |
| Input sensitivity | 0.775V/1V/1.4V/38dB/32dB/26dB | 0.775V/1V/1.4V/38dB/32dB/26dB |
| Input impedance | 20kΩ / 10kΩ (balanced/unbalanced) | 20kΩ / 10kΩ (balanced/unbalanced) |
| Voltage gain | 40.3dB | 42.3dB |
| Output category | Class I™ | Class I™ |
| Cooling | Ventilation from front to back | Ventilation from front to back |
| Connection | ||
| Input section | Balanced input XLR female socket / Balanced parallel XLR male socket | |
| Output section | Two red and black terminal studs (PCM20)/SPEAKON speaker screw mount | |
| Function | ||
| Front panel | Power supply/signal/input level/peak clipping/protection/overtemperature protection; signal distortion/mute/high frequency | |
| Rear panel | Stereo/Parallel/Bridge selection switch, sensitivity selection switch; limiter switch | |
| Dimensions/Weight (The dimensions of the inner and outer packaging, net weight, and gross weight provided in the information are for reference only. The accurate values are subject to the markings on the actual batch of products.) | ||
| Product dimensions (mm) | 483 x 448 x 89 | 483 x 448 x 89 |
| Outer packaging size (mm) | 595 x 565 x 170 | 595 x 565 x 170 |