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DST-4400 DST-4300 DST-4200 4-Channel Amplifiers with DSP Processor


4-Channel Amplifiers with DSP Processor

DST-4400 DST-4300 DST-4200


The DST-4400 is 4-channel flexible amplifiers with DSP processor for high performance installation sound system. The 4-channel power amplifiers with DSP processor are rated power output at 4 x 200W to 4 x 400W@ 8 Ohm which provide an enormous flexibility for different size sound system applications. The DSP processor in combination with remote management software gives user friendly experience with intuitive functions overview for easy configuration. Acoustics can be optimized using noise gate, matrix mixer, PEQ, crossover, delay, compressor, Butterworth, Bessel, Linkwitz6~24. These settings can be custom configured using the English remote software by mini USB port on front panel. Loudspeaker protection is provided by an output power limiter whereby the maximum output power for every channel (in Watt) can be configured. Configuration is made simple with loudspeaker presets and full system configurations which can be selected from a library and uploaded to the amplifier. This ensures the best acoustical performance with a bullet-proof loudspeaker protection. The amplifier built-in 4 Input 4 Outputs high performance DSP processor, which can ensure each input and output could be managed respectively. One mini USB on front panel for DSP configure. There are four balanced line inputs by XLR. The amplifiers support 100V & 8 Ohm both commercial audio & professional audio applications, where an output selector could enable this function for dedicated sound system. The installation of this 4-channel amplifier with DSP allows receiving and sending of low latency, high quality audio with multiple Presets. Dante (DT44) or AES67 (AES674) enabled network module are optional to add.


4-channel amplifier with DSP processor

Rated power output at 4 x 200W to 4 x 400W@ 8 Ohm

Support 4Ω, 8Ω & 100V, mono, free matrix, stereo & bridge modes

Built-in DSP with EQ, gain control, crossover, delay, limiter, high-pass filter & low-cut filter

31 bands of input PEQ and 10 bands of output PEQ

30 presets of DSP (Digital Signal Processor)

4 In 4 Out matrix DSP processor

One mini USB port on front panel for DSP configure

0dBu/6dBu sensitivity adjustment for each input

Remote GPIO of RS232 & RS485

1U height 19” rack mount type power amplifier

Balanced line input by XLR for four channels

Complete short circuit, overload, high temp, clip and DC protection

Dante (DT44) or AES67 (AES674) enabled network module are optional to add







4-Channel Amplifier with DSP Processor

Rated Power Output 8 Ohm

4 x 400W

4 x 300W

4 x 200W

Rated Power Output 4 Ohm

4 x 800W

4 x 600W

4 x 400W

Rated Power Output 100V

2 x 400W

2 x 300W

2 x 200W

Bridge Output 8 Ohm




Speaker Output

4Ω, 8Ω & 100V, mono, free matrix, stereo, bridge


EQ, gain control, crossover, delay, limiter, high-pass filter & low-cut filter, Butterworth, Bessel, Linkwitz6~24

Mini USB for configure, monitoring & control via fully manageable remote PC software

Frequency Response

L/H Cut OFF 20Hz-20KHz (+1/-2dB)

L/H Cut ON 70Hz-10KHz (+1/-3dB)


6dBu, Max. 16dBu (4.9V), balanced XLR by four channels


<0.1% (1KHz/-3dBv, 300W)

S/N Ratio

6dBu: 94dB, 0dBu: 94dB



Gain Control

6dBu: 30dB29.5 times, 0dBu: 36dB31.1 times


DSP limiter, High temperature, DC, high frequency, short circuit, back EMF, peak current limiter, Back EMF, Surge current limiter, startup delay, power circuit breaker protection, power over voltage , under voltage protection


240x240 pixel, IPS LCD colorful English Display

Power Consumption




Power Supply

AC input switchable between 180~260V, 50-60Hz


484x300x44 mm



DSP (4 IN 4 OUT)Specifications

Input PEQ


Output PEQ



Butterworth, Bessel, Linkwitz6~24

Output Delay

Input Delay: 2 x 80ms / Output Delay: 4 x 20ms

Output Compressor

Knee, Threshold, Attack, Ratio, Release

Output Limiter

Threshold-90dBu~21dBu, release 1~2895ms

DSP Presets

30 (one for factory preset)

Control port

USB, RS485, RS232, GPIO

DSP Channel

4 Inputs & 4 Outputs