NSXS 229 is an Integrated Amplifier or Audio system made by AIWA at end of 90s. Its has an audio amplifier that using symetrical 35VDC which is can deliver audio Output up to 75 Watts.
The amplifier using a Darlington Transistor pairs , which is 2SD1933 and 2SB1342 ( DATASHEETS ).
The schematic diagram is looks so simple with 3 stage inside the circuit. The stage is Preamp, Voltage amplifier and Power Amplifier.
I visited multiple websites but the audio feature for audio songs present at this website is truly
superb.