HQM HQM2040R/S 40W PA Amplifier

The HQM HQM2040R/S is a professional 40W PA amplifier designed for public address systems in commercial and institutional environments. It delivers reliable audio amplification with multiple input options and built-in protection circuits.

Advantages

Versatile connectivity with 3 microphone inputs (balanced/unbalanced 6.3mm jack), 2 auxiliary stereo RCA inputs, and a dedicated phono input. Switchable phantom power for condenser microphones. Priority function on Mic 1 and emergency input ensures critical announcements are heard. Fan-cooled design for stable operation. Rack-mountable 2U form factor saves space.

Suitable for

• Public address systems in schools, offices, retail stores
• Background music and announcements in restaurants, bars, and hotels
• Small to medium-sized venues requiring reliable audio amplification

Key specifications

• Output Power (RMS): 40 W
• Speaker Outputs: 100V, 70V, 4 Ohm
• Microphone Inputs: 3 x 6.3mm Jack (balanced/unbalanced)
• Phantom Power: Switchable for Mic 1-3
• Auxiliary Inputs: 2 x Stereo RCA (summed to mono)
• Phono Input: 1 x Stereo RCA (summed to mono)
• Emergency Input: 1 x Terminal Block (priority)
• Frequency Response: 80-15,000 Hz
• Signal-to-Noise Ratio (Mic): >75 dB
• Signal-to-Noise Ratio (Aux/Phono): >85 dB
• Total Harmonic Distortion (THD): <1%
• Tone Controls: Bass, Treble
• Record Output: 1 x Stereo RCA
• Pre-Amp Output: 1 x Stereo RCA
• Power Supply: 230 V AC, 50 Hz
• Rack Mountable: Yes (2U)
• Cooling: Fan-cooled
• Protection Circuits: Overload, short circuit, overheating

Recommendations

For optimal performance, use with 100V or 70V speaker systems. Ensure proper ventilation for fan-cooled operation. Ideal for fixed installations where reliable audio distribution is required.