NAIM NAP250 MOD

It is a replica of NAP250 by LJM and an improved version.

Compared to NAIM NAP140 200, it has better performance and lower price.

LJM does not provide circuit diagrams for all products, do not buy if you mind

The NAP250 MOD version adopts MINI's circuit board design scheme, reducing the length of PCB wiring.

At the same time, it also reduces the resistance impact of PCB wiring.

The shorter the PCB copper wire, the lower the resistance and the improved performance.

In addition, the NAP250 MOD version has modified some of the factory's bugs. Enable the temperature compensation tube to be installed on the same heat sink as the high-power tube.

In this way, NAP250 MOD can work in class AB.

Avoiding intersection distortion.

And several other obvious factory bugs.

So NAP250 MOD is a better and more cost-effective solution than the original factory replicated version.

The high-power transistor adopts four original imported ST semiconductor 2SC5200

230V15A 150W power transistor

The weight of two dual channel boards is 100 grams, not including the weight of the packaging.

Working parameters:

The power supply voltage ranges from DC+-15V to DC+-40V.

Output power=RMS 80W 8R (DC+-40V)

Recommended value for static current: voltage at both ends of cement resistor=1.5 MV-3MV

The current is approximately 10-20 mA.

THD+N=0.001% -0.03% (20HZ-20KHZ 5W-30W 8OHM Audio Precision 2 TEST)