1DIFFQC 220 Watts Class AB Amplifier
Product Overview
Class A/B amplifiers provide the warmest fullest bass. 1DIFFQC produces tight, fast and deep bass. Pleasant crisp treble without glassiness or excess sheen. THD 0.05%. This is a very unique and exceptional amplifier. It's like a tank and won't disappoint. Kindly consider purchasing our or any other speaker delay and protection circuit.
Dimensions
The PCB is very compact providing a very high power density in just 114.53mm * 114.55mm . Allowing for creation of a multichannel amplifier and or active speaker system.
Power Source
Unregulated +/-40VDC, checkout our power supply module.
Mounting
You will need a suitable heatsink with at least 0.6 C/W dissipation and mounting kit. The module has holes for mounting. M3 screws and standoffs would be suitable for attachment.
Details
The amplifier should reach full power at line level voltages. You may use a preamplifier of your choice.
R24 is a 25 turn pot, center it at 12 turns, then start your adjustments from there. Measure the voltage across R11 with a multimeter and adjust R24 until the voltage across R11 reads between 10mV to 20mV. Bias the output devices at 100mA (20mV) for better performance THD will be around 0.05%
Have fun and let us know what you think
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