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Digital Amplifier
Near-computer 4-channel amplifier with USB input.
Based on Analog Devices 2x SSM3582 Filterless Stereo Class D Audio Amplifier
Can be used as:
Dual 2-Channel Stereo Amplifier
Powerful 2-Channel Stereo Amplifier (each channel is paralleled amplifiers)
3-Channel Triphonic Amplifier (2 stereo channels and one channel with paralleled amplifiers)
4-Channel Amplifier
Power Management Circuit used to switch amplifier;s power between 5V USB and external 12-16VDC source.
Small second board have volume potenciometer with On/Off switch and indication LEDs:
ON
Play
OT (Over Temperature)
LB (Low Battery) - this LED is on continuously whet there is no external power and only USB used, and flash if external power exists but is low.
The kit consists of:
main board with USB controller (XMOS), 4-channel amplifier, power management circuit
control board
front and rear panels
Optional - 4-terminal blocks for speakers connection.
Usage example:
board is mounded in aluminum case (145x150x54mm from Aliexpress) with Li-Ion 14V battery.
See prices on the "Shop" page.
See prices on the "Shop" page.
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