High power amplifier are usually quite costly and usually beyond the easy reach of most audio enthusiastic (and Hi-Fi buffs) who then have to remain satisfied with those small 6 watt amplifiers. Well, with this introduction to us and to electronics, things should change. Well this low cost Hi-Fi amplifier that delivers ear chatting and thundering output of an unbelievable forty watts. The unique features of this circuit are.
- Low cost Γ’β¬" The basic criteria
- Compact size
- Very low transient noise on Γ’β¬Ε“power onΓ’β¬Â and low THO
- Effective Bass and treble controls
- Automatic thermal shut down system it switches off the amplifier in case of overheating
- Load damp protection in built.
The circuit uses a high power amplifier chip viz the LA 4440. the circuit is quite self explanatory. The input is coupled by a small value capacitor. The output is taken through a block terminal and fed to the speaker.
