HD-840  power amplifier

HD-840 power amplifier

  • Introduction
  • Parameter

product introduction

shadowKA series of professional theater power amplifiers are designed by engineers based on the actual experience of on-site sound reinforcement.Designed for international needs and using high-quality components It is assembled and subjected to strict aging tests to ensure that each power amplifier has extremely high technical specifications and extremely high reliability. 

product features

SONIC PRO®soundHDSeries power amplifiers are highly reliable power amplifiers for channel theater surround sound reinforcement,HDSeries power amplifier amplifier circuits are developed in advanced and matureABComprehensive optimization and line adjustment have been made based on the class circuit, and multiple circuits have been used inside the equipment.HIFIClass A capacitor, the amplification part uses top ON SM power amplifier tubes to ensure the softness and resolution of the sound, further optimize the sound, and continue to provide surging driving force; the bass channel uses Sanken power amplifier tubes to ensure the surging power of the bass and low frequencies. Downward extensibility, the panel is made of aluminum alloy material without knob design, black and white, and the meticulous sandblasting process is more calm and high-end, more in line with modern people's aesthetics;HDSeries power amplifiers provide5.1、7.1Users can choose from multiple solutions such as panoramic sound, andSONIC PRO®Any series of slightly combinations can provide high-quality sound and surging driving force.

power output stereo (8Ω):800W×4
power output stereo (4Ω):1200W×4
Signal to noise ratio:105dB
Input sensitivity:1V、1.4V
Output circuit:ABclass
Conversion rate:60V/us
Total harmonic distortion (1KHz PO=1W):0.05%
Channel resolution (1KHz 8Ω):-75dB
Frequency response:20-20KHz,±0.3dB
Damping coefficient:(1KHz 8Ω) :550
Input impedance: balanced20KΩ
Input connection method (each channel): Mother Cannon
Output connection method (each channel): banana plug terminal
Protection functions: short circuit, amplitude limiting, DC, overheating, overload, soft start
LEDIndication: Power indicator light
Cooling: Temperature controlled variable speed fan passes through the heat sink for ventilation from side to rear
size:483mm×430mm×88mm
Net weight:15kg

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