MX40 amplifier board designed by the LJM
MX40 stereo finished board. Two board
Supply voltage range
DC Min> = + -12V.
DC Max <= + -35V
Transformer Voltage can not exceed AC24-0-24V
Power Output: 50W 8R.
100W 4R.
Distortion thd <0.02% 20w 8r 20hz-20khz
SNR> 99DB
gain Gain = 34
Input sensitivity 1V. Output power 50W 8R
PCB Size: 52 * 60 MM does not include the power transistor size into account.
MX40 is a MINI amplifier, has good flavor. It can replace the same type of LM3886 series amplifiers.
And better results. Finished board comprising an insulating sheet.
20K square wave test:
Noise value no-load: <20mv
Signal to noise ratio:> 99 DB
Audio Precision 2 test
Distortion plus noise value: THD + N =
0.001-0.004% 20HZ- 20K HZ 10W RMS
Measurements: AUDIO PRECISION 2 SYS
Frequency response =
20HZ -0.05DB
10 HZ -0.15DB
20K HZ -0.06DB
FFT Distortion Map Reference: Actual Measurement: Input signal value 225MV RMS, 315 MVP value