HP-1500B ( digital subwoofer power amplifier with DSP )

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I. Introduction

    HP-1500B is 500W digital subwoofer power amplifier. It is for high-end active subwoofer system. Due to digital amplifier and switching power supply design, it's high efficiency and weight becomes lighter than traditional analog amplifier & liner transformer design.

II. Features :

     1. Digitalize amplifier with high current output device.
     2. Left and right channels female XLR jack input.
     3. Line level RCA jack stereo input.
     4. Line level RCA jack stereo output.
     5. Crossover frequency controls (40Hz~180Hz / 24dB/ Oct.)
     6. Subwoofer volume control.
     7. Output short / thermal / DC offset protect circuit.
     8. Green color LED for power on indicator.
     9. Red color LED for Stand-by indicator.
   10. AC inlet with fuse holder.
   11. Music auto Detect Control.
   12. Phase control 0˚----180°

III. Specification

     1. Power output @ 1% THD ……………………………… 500W/4Ω MONO or 250W/8Ω X 2 channels
     2. THD @ -3dB rated power ……………………………………………………………… < 0.2%
     3. S/N Ratio @ rated power A-wei…………………………………… > 95dB
     4. Input sensitivity …………………………………………… 250mv@100Hz
     5. Input Impedance ……………………………………………… 22KΩ
     6. Variable low pass freq (24dB/OCT) ……………………… 40Hz - 180Hz