2.1 amplifier circuit using LA4630N: This is a 2.1 amplifier circuit using LA4630N. This diagram for 3 audio inputs and 3 outputs. We can make 2.1 using this diagram. making 2 for the left and right speakers, and another for the Bass. Stereo section 9V/3Ω 3W×3, 12V/3Ω 5W×3. Super bus …

Amplifier circuit board using STK403-090: This is an amplifier circuit board using STK403-090. It’s a stereo audio circuit diagram. We can get a maximum of 80+80 watts using a 45-0-45 voltage. needs dual voltage, positive, negative, and ground voltage. 80 watts 6 ohms integrated circuit.  The diagram of this circuit …

4-transistor amplifier board: This is a 4-transistor amplifier board. It’s a stereo transistor audio circuit diagram. This circuit can make 150+150 watts using 35-0-35 volts. Here, 2sc5200 and 2sa1943 transistors are used. This pair of transistors can make 150 watts. 2sc5200 is a positive NPN transistor, and 2sa1943 is a …

DC power supply Adjustable: This is a DC power supply adjustable. We can adjust the minimum 1.2 volts to a maximum of 35 volts and 1.5 amperes. Here, use one LM317T. It’s LM317T STMicroelectronics Linear Voltage Regulators. This IC needs a good-quality heatsink. One 100k adjustable variable. and a 1k …

Sound booster pre-amplifier circuit diagram: This is the Sound booster pre-amplifier circuit diagram. This board is for boosting the sound. This board works as a pre-amplifier. This circuit runs with 12-0-12 voltage to 15-0-15 voltage. Every amplifier needs this type of circuit. Normally, it’s included with the bass tone circuit. …

Amplifier circuit using STK403- 450: This is the amplifier circuit using STK403-450. This circuit is for the STK403-000 series. These 3 ICs can be used in this diagram. STK403-430, STK403-440 and STK403-450. STK403- 430 can make 6X20 watts using 30-0-30 voltage. STK403- 440 can make 6X30 watts using 35-0-35 voltage. …

Amplifier circuit using STK403- 430: This is an amplifier circuit using stk403-430 IC. STK403-400 series products are audio power amplifier hybrid IC. 6-channel class AB amplifier. This diagram has 6 audio inputs and 6 audio outputs. Each channel got 20 watts. 6X20 watts. 35-0-35 voltage.  DIY transistor amplifier driver circuit: …

low pass filter for subwoofer amplifier:  This is the low-pass filter for the subwoofer amplifier. This circuit needs to make a bass amplifier. We also need to make a 2.1,5.1 audio sound system. This board makes only bass. makes only the low part. It has no mid-range or high part. …

DIY transistor amplifier driver circuit: Here DIY transistor amplifier driver circuit board. This is the driver board for the transistor board. We can use 2 transistors to 60 transistors. per pair of transistors can make a maximum of 150 watts. Here, use 2 driver transistors, 2SC5200 and 2SA1943. 2sc5200 is …

How to make an amplifier circuit: How to make an amplifier circuit? This is a mini audio amplifier circuit diagram. It can make 30 watts in bridge mode using 15 volts. This diagram needs a single voltage, positive and negative. It’s a mono diagram. To make a stereo need a …