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DA504 / DA904 / DA1304 / DA1804    4 Channel Amplifier

DESCRIPTION

The DA series professional amplifier is a class D digital amplfier with switching power supply,  using a special circuit design techniques, focusing on the stability of the products in the long-term continuous full power conditions,improving the protection function to avoid damages caused by operation mistakes and embarrassments caused by error protection. The main components of the PCB board using SMT technology manufacturing and  through computer simulation aided design circuit layout, so that the amplifier has a high signal to noise ratio and anti-jamming capability. The DA series products have a higher damping and perfect filtering system, so that the high frequency is more delicate and soft,  low-frequency is more powerful. And small size with light weight is more convenient to use.




SPECIFICATIONS

 MODEL DA504 DA904 DA1304 DA1804
(EIA 1KHZ 1% THD) STEREO POWER  8 ohms 4×500W   4×900W 4×1300W 4×1800W
STEREO POWER  4 ohms 4×750W 4×1350W 4×1950W 4×2700W
BRIDGE POWER 8 ohms 2×1500W 2×2700W 2×3900W 2×5400W
FREQUENCY RESPONSE  20Hz-20kHz,±1.5dB   20Hz-20kHz,±1.5dB   20Hz-20kHz,±1.5dB   20Hz-20kHz,±1.5dB 
INPUT SENSITIVITY  0.77V/1V/1.4V    0.77V/1V/1.4V    23dB-44dB  23dB-44dB
SIGNAL TO NOISE  ≥98dB    ≥98dB    ≥100dB  ≥100dB
THD ?。?.15% ?。?.15% ?。?.15% ?。?.15%
CROSSTALK (8 ohm 1KHz)   ≥62dB       ≥62dB       ≥62dB       ≥62dB     
INPUT IMPEDANCE 20KΩ(BALANCED )10KΩ(UNBALANCED)
DAMPING FACTOR    ≥230       ≥230       ≥230       ≥230   
SLEW RATE    25V/μs    25V/μs    25V/μs    25V/μs
PROTECTION FUNCTION SOFT START  / OVERHEATING / OVERCURRENT / DIRECT CURRENT / RADIO FREQUENCY 
MAIN POWER SUPPLY    AC:220-230V  50Hz    AC:220-230V  50Hz    AC:220-230V  50Hz    AC:220-230V  50Hz
DIMENSIONS  482×235×88  482×235×88  482×433.5×88  482×235×88
NET WEIGHT  7.4Kg    7.5Kg   12.1Kg  12.4Kg


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