Speaker Powered board
Active Power Amplifier Powered board for speaker
punkt nr.: Powered board
beschreibung
FEATURE
The working principle of the active speaker amplifier board can be summarized as the following steps: audio signal input, control and amplification, sound generation, and sound output. The audio signal is transmitted from the external audio source device to the control circuit of the speaker through the input interface. The control circuit adjusts and processes the audio signal, such as volume control, equalization adjustment, etc. The signal is then amplified by a power amplifier, which increases the current and power of the signal to drive the speaker unit. The amplified signal is transmitted to the speaker unit through current, and the speaker unit produces corresponding sound according to the frequency and amplitude of the signal.
Integrated design
Built-in amplifier and speakers, easy to carry and use.
Simplify connections
Just connect the audio source device directly to the input interface of the active speaker, no additional amplifier is required.
Easy to operate
Usually equipped with a simple control panel, making volume and sound quality adjustments more convenient.
The working principle of the active speaker amplifier board can be summarized as the following steps: audio signal input, control and amplification, sound generation, and sound output. The audio signal is transmitted from the external audio source device to the control circuit of the speaker through the input interface. The control circuit adjusts and processes the audio signal, such as volume control, equalization adjustment, etc. The signal is then amplified by a power amplifier, which increases the current and power of the signal to drive the speaker unit. The amplified signal is transmitted to the speaker unit through current, and the speaker unit produces corresponding sound according to the frequency and amplitude of the signal.
Integrated design
Built-in amplifier and speakers, easy to carry and use.
Simplify connections
Just connect the audio source device directly to the input interface of the active speaker, no additional amplifier is required.
Easy to operate
Usually equipped with a simple control panel, making volume and sound quality adjustments more convenient.
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Model No.
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DM9.5
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DM10.5
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DM12.5
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DM15.5
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DM20
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DM24
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DM30
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Output
power 1 KHZ/EIA |
Stereo 8 Ω
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900W+500W
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1000W+500W
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1200W+500W
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1500W+500W
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1000W+1000W
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1200W+1200W
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1500W+1500W
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Stereo 4 Ω
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1550W+850W
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1800W+900W
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2150W+900W
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2700W+900W
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2000W
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2400W
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3000W
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Frequency response (BYPASS-ON)
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20 Hz - 20 kHz ± 0.5dB
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Input sensitivity
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1.1V
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1.2V
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1.3V
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1.1V
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1.2V
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1.3V
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1.3V
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THD%: 1/8 RMS, 1KHZ
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<0.05%
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<0.05%
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<0.05%
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<0.05%
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<0.05%
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<0.05%
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<0.05%
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Slew rate(RMS,1KHZ)
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>20V/µs
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>20V/µs
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>20V/µs
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>20V/µs
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>20V/µs
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>20V/µs
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>20V/µs
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damping Factor(RMS,1KHZ)
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>200
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>200
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>200
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>200
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>200
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>200
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>200
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Dynamic Range
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≥95dB
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≥95dB
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≥95dB
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≥95dB
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≥95dB
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≥95dB
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≥95dB
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S/N ratio (A-weighted, RMS)
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≥95dB
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≥95dB
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≥95dB
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≥95dB
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≥95dB
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≥95dB
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≥95dB
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Voltage gain
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34dB
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34dB
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34dB
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34dB
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34dB
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34dB
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34dB
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| Damping Factor(RMS,1KHZ) | >200 | >200 | >200 | >200 | >200 | >200 | >200 | |
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Input impedance
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Balance:20K Ω, unbalanced:10K Ω
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Output circuit design
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SMPS+CLASS D
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Cooling system
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Low-noise , Variable speed fans; air flow from front to the rear
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Power supply(PFC)
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AC110V~AC250V~50/60Hz
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Dimensions (W×D×H)
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142mm x 332mm x89mm
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Weight
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2Kg
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2Kg
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2Kg
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2Kg
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2Kg
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2 Kg
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2 Kg
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