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Monday to Friday: 7AM - 7PM
Weekend: 10AM - 5PM
HK-230A Audio Power Amplifier
Integrated Functionality: Combines professional preamplification, audio signal processing, and a high-fidelity, low-power amplifier system with dual-channel fully discrete full-bandwidth amplification.
Input/Output: Four microphone inputs (1 front, 3 rear, including USB digital wireless microphones), three line inputs supporting constant-voltage broadcast override and line priority input; equipped with line/recording output and A+B group power outputs (Capable of driving 4 x 8Ω speakers).
Core Advantages: Microphone support for 48V/6V phantom power; constant-voltage/digital broadcast override; integration with online classroom software; RS232/485 central control functionality; independent volume adjustment + treble/bass equalization; feedback and reverb adjustment.
Safety & Design: Multiple protections including overcurrent/overload; rack-mount design with recessed keys to prevent accidental activation; high-fidelity clarity and stable performance; suitable for voice amplification in diverse settings like schools and conference rooms.
Key Features:
1. Professional all-in-one multi-function power amplifier integrating a professional preamp system, audio signal processing system, and high-fidelity low-power consumption amplifier system;
2. Integrated power amplifier employs dual-channel high-fidelity fully discrete components and full-bandwidth power amplification system;
3. Four microphone inputs (front-left, front-right, rear-left, rear-right) with balanced and unbalanced connections, plus one USB digital wireless microphone input;
4. Microphone inputs utilize standard XLR+TRS 1/4″ jacks with 48V phantom power and 6V polarity reversal power supply, plus dedicated digital wireless microphone interface;
5. Three line inputs, one constant-voltage broadcast signal priority input, one line signal priority input;
6. One line output, one recording output, A+B group power outputs capable of driving four 8-ohm speakers;
7. Built-in feedback and reverb adjustment functions; independent volume control for microphone and line inputs with 2-band EQ (high/low); separate high/low EQ for Mic 1/3 and Mic 2/wireless microphone;
8. Constant-voltage broadcast and digital broadcast line signal priority override function;
9. Line priority input, compatible with interactive recording/broadcasting or online classroom software like Tencent Meeting;
10. RS232/485 central control adjustment for computer connectivity or central control operation;
11. Protective functions: Overcurrent, overload, overtemperature, DC protection, etc.;
12. Rack-mount chassis with recessed key design to prevent accidental operation and extend system lifespan;
13. Features high fidelity, clarity, and stable performance, suitable for voice amplification in schools, factories, halls, and small-to-medium conference rooms.
Technical Specifications
Rated Power: 2×100W/8Ω
Input Sensitivity: Line 300mV ±30mV; Microphone 15mV ±2mV Constant-voltage Broadcast Input 70-100V, Line Priority Input 0.775V
Tone Control: Treble: 10kHz ±12dB Bass: 100Hz ±12dB
Frequency Response: 20Hz–20kHz ±1dB
Phantom Power: +48V
Polarity Power: +6V
Power Supply: AC 220V ±10% / 50Hz
