Looking for superior sound quality in a compact form? The ZK-502C Class D digital amplifier board delivers powerful, clear, and round sound with a THD as low as 0.1%, even during long periods of high output. Supporting both Bluetooth 5.0 and 3.5mm AUX input, this dual-channel bluetooth amplifier board is perfect for driving 48 passive speakers in your DIY audio projects. This digital audio amplifier ensures a premium listening experience for any mini hifi amplifier setup.

Key Features

• Bluetooth 5.0 and 3.5mm AUX input for flexible audio sources in your bluetooth amplifier board

• 50W x 2 high-power stereo output (supports 30W200W speakers) for a digital audio amplifier

• Wide input voltage: DC 5V27V (5.52.1mm jack) compatible with your mini hifi amplifier

• Onboard power switch and volume control with LED indicator for the stereo receiver

• Built-in protection: overvoltage, undervoltage, overheating, short circuit, and DC detection in this digital audio amplifier

• HIFI sound quality with low distortion, even at high volume on this bluetooth amplifier board

Input & Output Ports

• Input: Bluetooth 5.0 / 3.5mm AUX jack for the digital audio amplifier

• Output: Left and Right Speaker Terminals (R+, R, L+, L) on the mini hifi amplifier

• Power Input: DC 527V (center-positive plug) for your stereo receiver project

Technical Specifications

Example Power Output at Various Voltages:

• 12V: 4/20W2, 8/12W2 digital audio amplifier

• 15V: 4/>30W2, 8/18W2 stereo receiver power

• 19V: 4/>45W2, 8/32W2 mini hifi amplifier use

• 24V: 4/>55W2, 8/38W2 bluetooth amplifier board

Package Includes:

• 1 ZK-502C Bluetooth Amplifier Board

• 2 Acrylic Protective Panels for your digital audio amplifier

• 1 Screwdriver for mini hifi amplifier assembly

• 1 Heat Sink for the stereo receiver

• 1 20cm Power Wire for the digital audio amplifier

• 1 Volume Knob for the bluetooth amplifier board

• 1 Accessory Kit for mini hifi amplifier

Ideal For:

• Raspberry Pi audio projects with a bluetooth amplifier board

• DIY Bluetooth speaker systems using a digital audio amplifier

• Home stereo upgrades with a mini hifi amplifier

• Compact wireless audio setups with this stereo receiver