Hi-End Balanced Audio Pre-Amplifier

Simple tiny high quality low noise Balance Preamplifier/buffer designed around op-amp.  This project can be use as balance to unbalance converter with audio level adjust on board.  Work with +/-15V dual DC supply @ 100 mA also provided screw terminal for Euro balance audio input connector.   Onboard two LED for supply indication.  RFI filter (Inductor) in input.  Project also can

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20W Mono Audio Amplifier Using LM1875

20W Audio Amplifier project is based on LM1875 IC.  Power supply input upto 48 VDC  Output 20 W, 4 Ω  Very low distortion (THD  0.015%), good channel separation and ripple rejection  IC built-in thermal, short circuit protections  Internal output protection diodes  Terminal pins for connecting input  Screw terminal connector for easy power supply input and speaker connection  Power-On LED indicator

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6W Stereo Audio Amplifier Using LA4440 IC

6W + 6W Stereo Audio Amplifier project  is based on LA4440 IC from SANYO.  Power supply – 12 VDC  Output – 2 X 6 W, 4 Ω  Input resistance – 30 KΩ  Low distortion (THD – 0.1%), Good channel separation and ripple rejection  IC built-in thermal, overvoltage, pin-to-pin short protector  Terminal pins for connecting inputs  Power Battery Terminal (PBT) for

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5W Stereo Audio Amplifier Using BA5406 IC

5W Stereo Audio Amplifier project based on BA5406 IC is suitable for application like stereo radio cassette player, stereo components systems etc. Download Data Sheet BA5406   Power supply 12 VDC  Output 5 W + 5W, 3 Ω  Input resistance 100 KΩ  Good distortion (THD – 0.3%), Good channel balance  Berg pins for connecting of inputs  Screw terminal connector for

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6W Mono Audio Amplifier Using TDA2003

6W Mono Audio Amplifier  project using  TDA2003 IC. Power supply input 14 VDC Output 6 W, 4 Ω Input resistance 150 KΩ Very low harmonic and cross-over distortion IC built in short circuit, thermal over- range, load dump voltage surge protected Onboard preset to adjust volume Terminal pins for connecting audio input Screw terminal connector for easy power supply input

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1.2W Audio Amplifier Using TBA820

1.2W Audio Amplifier Project can be used as a low frequency class B power amplifier with wide range of supply. Power supply – 3 – 12 VDC  Output – 1.6 W, 4 Ω  / 1.2 W, 8 Ω  Input resistance – 5 MΩ  Low quiescent current, good ripple rejection and no cross-over distortion  Onboard presets to adjust volume  Terminal pins

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