1pair L12-2 Completed Board Dual Power Amplifier Board Low Distortion Class AB AMP

Description

• Power = 120W /8R + -50V voltage
• 200W 4R + -50V voltage
• THD<0.0005% 1K HZ 10W
• Input sensitivity=1.6V output 120W 8R
• Frequency response range = 15HZ-50K HZ (-3DB)

We will not provide the schematics.Thank you for your understanding.

Parameters
Power = 120W /8R + -50V voltage
200W 4R + -50V voltage
THD200, 8ohm load
Input sensitivity=1.6V output 120W 8R
Frequency response range = 15HZ-50K HZ (-3DB)
20HZ* 20K HZ =-0.02 DB
Quiescent current = 80MA
Voltage use range = DC positive and negative dual voltage + -12V to + -55V
Voltage magnification = 31 times

Improvement compared to VER4 version in VER5 version:

1. Replace low-power transistors B649 and D669 with medium power transistors A1837 and C4793,
2. Increase the static current of the driving power transistor from 6MA to 18MA.
3. Add a radiator to the medium power tube.
4. Increase the static current adjustment function of the output power transistor, so that the static current of the left and right channel circuit boards can be the same.
5. Use electronic filters to replace the previous RC passive filters and reduce input stage interference.
6. Change the input stage mode to increase the input impedance. Low frequency performance improvement.

Package
1pair LJM L12-2 Dual Power Amplifier Board Low Distortion AMP

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