• Class D (PWM modulation) design for high-efficiency audio amplification
• Chip: OEP30Wx2 for superior sound quality
• Single channel for mono audio output
• Adjustable amplifier gain: 36dB (can be adjusted to 26dB)

• Bluetooth 4.0 + EDR with a range of up to 10 meters
• Rated power output of 50W × 2 for high-quality audio performance
• Multiple input interfaces: Bluetooth, USB sound card, and AUX
• Voice prompts in English (female voice)

Enhance your audio experience with the SANWU® YDA138 Bluetooth Digital Audio Amplifier Board. This Class D stereo amplifier offers high-quality sound and efficient performance, making it perfect for various audio applications.

• Amplifier Chip: YDA138
• Operating Voltage: 8.5~14VDC (polarity protection included)
• Recommended Power Supply: 12V DC, 2A current
• Output Power: 2x10W (8 ohms), 15W+15W (4 ohms)
• Output Impedance: 4~10 Ohm
• Model: SW-HF187
• Size: 38x60mm

The PT2313 Digital Tone Board Pre-Amplifier features the latest PT2313 chip and MCU design for superior audio performance. Ideal for enthusiasts and professionals. Key features include:

• Power supply: DC 9V-24V single power supply
• 3 audio input groups, 2 audio output groups
• Full remote control
• LCD display

• Schmitt trigger-limiter enabled power circuit for improved performance
• Hex-mode connection, stereo bridgeable for versatile configurations
• Higher efficiency with new RF MOSFET technology
• Continuously variable active crossovers for fine-tuned sound control

• Audio Modes:
  • U Disk / TF Card Decoding Playback: Supports FLAC, WAV, MP3, WMA format decoding.
  • Bluetooth Receiving Playback: Connect and play wirelessly.
  • FM Radio Function: Use remote control for FM station control (infrared).
• Amplifier Chip: TPA3116 digital amplifier ch

• Powerful 4x50W Output: Delivers 4 channels of 50W output power, providing high-quality sound.
• Noise Reduction with BA3121: Includes the BA3121 noise reduction chip for a cleaner audio experience.
• Wide Compatibility: 4-8 ohm speaker compatibility for flexible speaker selection.
• Compact Design: Measures 65 x 52 x 30mm, making it easy to fit into various audio setups.

TPA3116D2 50Wx2 Dual Channel Class D Amplifier Board

Boost your audio projects with the TPA3116D2 Dual Channel Digital Stereo Amplifier Board. This high-efficiency Class D amplifier provides 50W per channel, offering exceptional sound quality and powerful performance.

• Power supply voltage: DC 4.5V-26V (24V recommended)
• Dual channel: 2 x 50W
• Noise ratio: 102dB
• Switching frequency: 1.2MHz
• Input reverse connection protection
• Overvoltage/low pressure protection
• Dimensions: 78 x 51.5 x 22.5 mm

Package Includes: 1x TPA3116D2 50Wx2 Dual Channel Digital Stereo DC 4.5-27V Class D Amplifier Board

• Dual 15W output for superior audio performance
• Bluetooth 4.2 for seamless wireless audio streaming
• Works with 12V-24V input voltage for versatile power options
• Compact design for easy integration into various audio projects

• High-power Class D digital amplifier with dual-channel output.
• Requires an 8-ohm speaker, delivering 100W+100W output at 34V DC.
• Operating voltage of 15 - 34V DC (Recommended voltage: 24V).
• Efficiency of 90% for better performance and less power consumption.

• Bluetooth V4.0 with CSR8635 chip for seamless wireless connectivity
• Supports a wide range of speaker impedances: 4, 6, 8, and 16 ohms
• Dual-channel output with a maximum power of 50W per channel
• Works with DC 8-24V power supply for versatility

• Bluetooth Connectivity: Bluetooth 4.1 support with a password protection (default: 1688) to prevent unauthorized connections
• Compact Size: Small form factor (3.3x3.5x1.1 cm) for easy embedding in modified products
• Stereo Output: Two-channel stereo output for compatibility with most power amplifiers, home audio systems, and car audio
• Power Supply Options: MICRO USB port or 2.54mil pin for flexible power supply choices

• Differential input voltage of ±40mV (Full-scale differential input)
• High data accuracy with a 24-bit A/D converter chip
• 80 Hz refresh frequency for quick data updates
• Low operating current (<10 mA)

• Bluetooth 4.0 for wireless audio streaming
• 2.1 channels for high-quality audio output
• Aux in/Line in auto detection for seamless connectivity
• Over/under voltage, over current, and over temperature protection for safe operation

The Amplifier Board TPA3116D2 offers powerful audio performance with 50Wx2 for left and right channels and 100W for the subwoofer. It operates on a DC supply voltage range of 12-24V and features dual TPA3116 chips. This 2.1 channel digital subwoofer amplifier board is designed for high-quality sound output, supporting 4-8 ohm speakers and delivering excellent signal-to-noise ratio (SNR) of 100dB. Its compact PCB board size of 100 * 70 * 30mm makes it an ideal choice for various audio projects.

Key Features:

• Supply Voltage: DC 12-24V
• Chip: TPA3116*2
• Channel Type: 3 Channels (Left, Right, Subwoofer)
• Output Power: 50W*2 + 100W
• Output Match: 4-8 ohm
• Audio Output: Terminals
• Frequency Response Range: 14-100KHz
• SNR: 100dB
• Switching Frequency: 1.2MHz
• PCB Board Size: 100 * 70 * 30mm

Enhance your audio projects with our Stereo Tone Board featuring a built-in echo effect. This tone board is perfect for adding depth and dimension to your sound, making it ideal for various audio applications. Experience high-quality sound and easy integration with your existing setup.

Key Features:

• Stereo tone board design
• Built-in echo effect
• Easy integration with audio systems
• High-quality sound enhancement

• Class D (PWM modulation) design for high-efficiency audio amplification
• Chip: OEP30Wx2 for superior sound quality
• Single channel for mono audio output
• Adjustable amplifier gain: 36dB (can be adjusted to 26dB)

• Bluetooth 4.0 + EDR with a range of up to 10 meters
• Rated power output of 50W × 2 for high-quality audio performance
• Multiple input interfaces: Bluetooth, USB sound card, and AUX
• Voice prompts in English (female voice)

Enhance your audio experience with the SANWU® YDA138 Bluetooth Digital Audio Amplifier Board. This Class D stereo amplifier offers high-quality sound and efficient performance, making it perfect for various audio applications.

• Amplifier Chip: YDA138
• Operating Voltage: 8.5~14VDC (polarity protection included)
• Recommended Power Supply: 12V DC, 2A current
• Output Power: 2x10W (8 ohms), 15W+15W (4 ohms)
• Output Impedance: 4~10 Ohm
• Model: SW-HF187
• Size: 38x60mm

The PT2313 Digital Tone Board Pre-Amplifier features the latest PT2313 chip and MCU design for superior audio performance. Ideal for enthusiasts and professionals. Key features include:

• Power supply: DC 9V-24V single power supply
• 3 audio input groups, 2 audio output groups
• Full remote control
• LCD display

• Schmitt trigger-limiter enabled power circuit for improved performance
• Hex-mode connection, stereo bridgeable for versatile configurations
• Higher efficiency with new RF MOSFET technology
• Continuously variable active crossovers for fine-tuned sound control