Amplificateur audio portable K4-1700 DSP à haute efficacité classe D Pa
Channel: 4 channel power amplifier
Feature: 1U/Digital Amp/4CH/Class D/DSP Function
Output Power:
8Ω Stereo Power (RMS): 1700WX4CH
4Ω Stereo Power (RMS): 2800WX4CH
Certificate: CE, ROHS
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ATTENTION:
Normally rating power should be Amp-power x 1.5 times compared to the power of the top speaker and Amp-power x 2 times for the subwoofer. To protect and extend your amplifier's working life, please don't use this amplifier under 2 ohms. K series amplifiers are suited for Middle and High speaker, but not good for Subwoofer. |
| K4-1700 DSP Compact Power Amplifier K4-1700 1U 4-channel power amplifier, small size, light weight, easy to install. The circuit uses a Class D power amplifier module, a reliable and efficient R-SMPS stabilized power supply system, which has extremely high efficiency and controllability, and also has extremely high power density, which can adjust the current waveform according to the AC voltage waveform. Wide voltage operation, adapt to the global scope, can carry higher power. |
| Class D Amplifier K4-1700 Feature: 1. Use Class D power amplifier module. Unique peak clipping limiter and ripple reduction. 2. The perfect protection system effectively reduces the losses caused by improper use. 3. The perfect circuit design makes the bass strong and powerful, and the mid and high frequencies are transparent and clear. 4. 1U design, its light weight and very small space occupation rate. 5. It is widely used in large and medium-sized bars, banquet halls, and outdoor performances. |
K Series DSP Module Function:
►48kHz sampling frequency DSP processor, 24 bit A/D and D/A conversion; 4 in and 4 out DSP modules.
► The display screen monitors the temperature of the amplifier output channel at any time
►The PRO indicator light remains on when the power amplifier is under protection.
►The quick copy function can copy the adjusted parameters to other channels.
►Configure USB devices and RJ45 network port holders for a more convenient connection to PC software.
► Observe the 2-inch LED screen and directly adjust the parameters or connect to the computer to control through software.
► The operation panel can store 30 types of user programs for quick calling.
►The device can be locked to prevent misoperation.
► All 4 inputs have 9 independent parameter equalization segments
① Adjustment range -12dB~+12dB,
② The equalizer mode can be selected from PEQ, LF, HP;
③ Input configuration noise gate, phase, High-Low Pass, input integrated test, channel parameter copying, mute, and other functions.
► All 4 outputs have 9 independent parameter equalization segments,
① Adjust the gain range to -12dB~12dB,
② The equalizer mode can be selected from PEQ, LF, HF
③ Output configuration voltage limiter, delay, phase, High-Low Pass, output integrated test, channel parameters, mute, FIR, and other functions
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Audio parameters
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Analog input
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4 x XLR balanced
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Analog output
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4 x XLR balanced
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Signal-to-noise ratio (A-weighted)
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>108dB
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Maximum input level
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+21 dBu
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Maximum output level
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+21 dBu
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Frequency response
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20Hz – 20kHz; -0.5dBu at 20Hz and 20kHz
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THD+N distortion
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≤ 0.004 @ 1kHz 20dBu
≤ 0.003 @ 1kHz 0dBu |
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DSP processing 1 xAKM7735 DSP
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Parametric EQ
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Input with 7-segment parameter equalization
Output with 7-segment parameter equalization |
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Equalizer type
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All equalization filters can be set to LOW PASS Filter; High Pass Filter; PEQ;
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Equalizer gain
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Range: -12dB~+12dB, step accuracy: 0.1dB
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center frequency
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Adjustable step accuracy of 1Hz within the 20Hz~20kHz frequency band range
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Q value/broadband:
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Q value range: 0.3~15, with steps of 0.1
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Input&Output Gain
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Range: -0dB~+10dB, step accuracy: 0.1dB
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High and low pass filtering of IIR frequency division part
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Butterworth slope 12/24 dB optional
Bessel slope 12/24 dB optional Linquez Riley slope 12/24 dB optional |
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Output COMP voltage limiter
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Selectable ratio range: 1.00:1~INF: 1; Inflection point: 0-100%
Mode type: hard pressing; Moderate; Soft compression Supply range: -12dBu~+12dBu Start control time: 0.1ms~500ms; Release time: 0.001ms~2000ms |
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ground noise
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-90 dBu
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| K4-1700 | D4-2000 | D4-3000 | D4-2000 DSP | D4-3000 DSP |
