Hikvision-C Professional Amplifier 250W 2-Channel | DS-QAPAR25-2
Hikvision-C Professional Amplifier 250W 2-Channel | DS-QAPAR25-2
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Hikvision Professional Amplifier 250W 2-Channel | DS-QAPAR25-2
The Hikvision DS-QAPAR25-2 is a 2-channel Class D professional power amplifier in a 1U rack chassis. It delivers 2 × 250 W into 8 Ω in stereo mode, or 1 × 850 W into 8 Ω in bridge mode, takes balanced XLR line inputs and drives passive loudspeakers through SPEAKON outputs.
Key Features:
Efficient Class D Design: A Class D digital amplifier with power efficiency of up to 90%. Less power is wasted as heat, which keeps the unit compact and cooler in a rack.
Stereo or Bridge Mode: Run the two channels independently in stereo (2 × 250 W at 8 Ω, 2 × 425 W at 4 Ω) or bridge them into one higher-power output (1 × 850 W at 8 Ω). Front-panel controls set each channel's level, and rear switches select mode, gain and the limiter.
Wide-Range PFC Power Supply: The PFC switching power supply accepts 90 to 260 VAC at 50/60 Hz, so the amplifier keeps working through wide mains voltage variation.
Low Noise and Distortion: Signal-to-noise ratio of 100 dB or more (A-weighted) and typical THD of 0.01%, with a frequency response of 20 Hz to 20 kHz (+0/-0.5 dB).
Built-in Protection: Protection circuits cover over-temperature, DC, short circuit, signal overload, soft start and power-supply over-current, helping protect both the amplifier and the connected speakers.
Quiet Variable-Speed Cooling: The low-noise variable-speed fan stays silent at low temperatures, which reduces noise in the equipment room.
Who it's for / Works with: Sound reinforcement for stages, performance venues and bars that need to drive high-power passive loudspeakers.
Good to know: This is a power amplifier only. It needs a line-level source such as a mixing console or audio processor (maximum input level 14 V) and passive loudspeakers connected by SPEAKON cable; the source, speakers and cables are sold separately.
Technical Specifications:
| Model | DS-QAPAR25-2 |
| Amplifier type | Class D digital power amplifier, 2 channels |
| Rated power (stereo) | 8 Ω: 2 × 250 W; 4 Ω: 2 × 425 W; 2 Ω: 2 × 723 W |
| Rated power (bridge) | 16 Ω: 1 × 500 W; 8 Ω: 1 × 850 W; 4 Ω: 1 × 1445 W |
| Frequency response | 20 Hz to 20 kHz, +0 dB / -0.5 dB (typical, 10% rated output power, 8 Ω) |
| THD | 0.01% typical (10% rated output power, 1 kHz, 8 Ω) |
| SNR | ≥ 100 dB (A-weighted, 20 Hz to 20 kHz, 8 Ω) |
| Input impedance | 20 kΩ balanced, 10 kΩ unbalanced |
| Maximum input level | 14 V |
| Input range (sensitivity / gain) | 0.80 V / 35 dB; 1.12 V / 32 dB; 1.59 V / 29 dB; 2.24 V / 26 dB |
| Function switches | Bridge mode, Connect mode, Stereo mode, gain selection, limiter |
| Audio interface | XLR inputs, SPEAKON outputs |
| Power supply | 90 to 260 VAC, 50/60 Hz |
| Form factor | 1U rack |
| Dimensions | 483 × 44 × 370 mm (19 × 1.73 × 14.56 in) |
| Weight | Approx. 9 kg (19.84 lb) |
📄 Datasheet: Download the official Hikvision DS-QAPAR25-2 datasheet (PDF)