Power supply voltage DC+ - 15V to DC + - 40V.
Output power = RMS 80W 8R (DC + - 40V)
Quiescent Current Recommended: Voltage at both ends of the cement resistor = 1.5 MV-3MV
The current is about 10-20 MA.
THD + N = 0.001% -0.03% (20HZ-20KHZ 5W-30W 8OHM Audio Precision 2 TEST.
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Note: It is DIY KITS ,not finished board !
NAP250 MOD version of the MINI circuit board design, reducd the length of the PCB wiring, but also reduced the effect of PCB wiring resistance.
the shorter of PCB copper wire, the smaller of resistance, the performance will be improved.
In addition, NAP250 MOD version of the original modified some of the BUG, the temperature compensation tube and high-power tube installed in the same radiator.
So that NAP250 MOD can work in the CLASS AB, to avoid the cross-distortion and several other obvious BUG.
So NAP250 MOD effect is better than the original copy version, cost-effective program.