4 Channel Preamplifier Board Audio Amplification Module DC 12V - 15V Dual Power Supply NE5532 Operational Amplifier with 4.7 Times Magnification and 0.01 Percent Distortion for

Item Type: Preamplifier BoardMaterial: PCBModel: NE5532Channel: 4 ChannelWorking Voltage: Dual 12V-15V DCRecommended Voltage: Dual 15V DCTransformer Power: More than 5WPackage List：1 x Preamplifier BoardNote:Do not overload to use.

• Adjustable Signal Amplification: Provides 4.7 times magnification with the option to modify the 47K resistor near the operational amplifier to adjust the magnification level as needed.
• High Precision Resistor Components: Features SMD resistors and 5 ring metal film resistors with plus or minus 1 percent accuracy to maintain a stable signal to noise ratio.
• Multi Channel Power Supply: Operates on a DC 12V - 15V dual power supply and requires a transformer with a power rating of more than 5W for 4 channel operation.
• Direct Coupling Design: Utilizes a direct coupling type amplification circuit with no coupling capacitance to minimize distortion to 0.01 percent for audio signal integrity.
• Audio Equipment Applications: Suitable for integration with audio devices such as speakers, offering 4 channel preamplification utilizing the NE5532 operational amplifier.