• 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.

• High-fidelity (Hi-Fi) sound output
• Dual-channel stereo for balanced audio performance
• 50W x 2 output power with adjustable voltage and resistance
• Compact and lightweight (only 62g) design

CT14 Micro 4.2 Bluetooth Stereo Amplifier Module

This high-quality CT14 Micro 4.2 Bluetooth Stereo Amplifier Module is designed for those who demand the best in audio performance. Ideal for a variety of DIY audio projects, this compact module delivers powerful sound in a small package.

• Material: Electrical components
• Operating voltage: 3.7-5V DC
• Size: 40 x 20mm
• Power: 3W

Package Includes: 1x CT14 Micro 4.2 Bluetooth Stereo Amplifier Module

• Bluetooth Version: 4.2 for stable and high-quality audio transmission.
• Lossless Audio Decoder: Ensures high-fidelity MP3 audio playback.
• Compact Design: Small and lightweight, ideal for DIY audio projects.
• Long Transmission Range: Up to 20 meters in open spaces or low interference environments.

Enhance your subwoofer's performance with the Low Pass Filter Board Active for Subwoofer Bass NE5532. This filter board, model GV-SUB01, operates with an AC double power supply ranging from 9V to 15V, and features a blue LED indicator. Its frequency tuning range of 22Hz to 210Hz ensures excellent bass performance without vocals.

• Model: GV-SUB01
• Power Supply: AC double 9V - 15V
• Blue LED Indicator Light
• Frequency Tuning Range: 22Hz - 210Hz (No vocals)

Package Includes: 1 x Low Pass Filter Board Active For Subwoofer Bass NE5532

Enhance your audio projects with the Microphone Amplifier Board XH-M273 PT2399 NE5532. Key features include:

• Product Name: Karaoke Reverb Board
• Product Model: XR-M273
• Input Voltage: DC12-24V
• Reverberation Chip: PT23999
• Microphone Input: 2
• Knob Spacing: 24MM
• Microphone Spacing: 17.6MM
• Output Channel: 2 channels
• Frequency Response Range: 25HZ-17KHZ
• Compact Size: 117 x 53MM
• Weight: 75 grams

Perfect for karaoke systems and audio enhancement projects, providing clear and powerful sound quality.

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

• Bluetooth 5.0 support for wireless audio streaming
• High power output of 50W + 50W for superior sound quality
• Supports TF card for direct playback of audio files
• Compact and efficient design with a size of 96 x 86 x 20mm

• 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)

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 Mono Amplifier Board features 4 transistors, utilizing two 5200 and two 1943 (not included), providing a powerful and reliable amplification solution. Compatible with DC supply voltage from 12V to 35V.

• Onboard 2W Mono Amplifier (5V power supply, up to 3W) for direct connection to speakers (recommended with 4Ω, 3W speakers)
• 3.5mm gold-plated socket for connecting headsets or external sound devices
• MicroUSB power supply interface allows use of mobile phone cable, USB charger, or 3.7V lithium battery
• Supports TF card and U disk playback for music storage and playback

• Chip: TPA3116D2 for high-quality sound output.
• Bluetooth 4.0 transmission, with a range of up to 20M.
• Voltage Range: DC 12V-24V for versatile power options.
• Power Output: 50W + 50W, ideal for medium-sized speakers.

Boost your audio projects with the DC 12V-24V TPA3118 60W Mono Digital Audio Power Amplifier Board. This amplifier board features the TPA3118 chip, providing a powerful 60W output for mono audio applications. It operates within a voltage range of 12V to 24V, ensuring reliable and efficient performance. The compact design makes it easy to integrate into various audio projects, offering high-quality sound amplification for your needs.

• TPA3118 chip for high-quality audio amplification
• 60W mono output power
• Operating voltage range: 12V to 24V
• Compact and easy to integrate design
• Suitable for various audio projects

• Professional-grade crossover for high-performance audio systems
• 700W power handling capability
• Three units for versatile audio management
• Designed for professional audio equipment

• High-quality TDA7379 power amplifier chip for clear stereo sound
• Dual-channel output with 38W+38W power for balanced audio
• Compact board size, ideal for DIY audio projects
• Wide power supply range: DC 9-17.5V for flexible use

• 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.

• High-fidelity (Hi-Fi) sound output
• Dual-channel stereo for balanced audio performance
• 50W x 2 output power with adjustable voltage and resistance
• Compact and lightweight (only 62g) design

CT14 Micro 4.2 Bluetooth Stereo Amplifier Module

This high-quality CT14 Micro 4.2 Bluetooth Stereo Amplifier Module is designed for those who demand the best in audio performance. Ideal for a variety of DIY audio projects, this compact module delivers powerful sound in a small package.

• Material: Electrical components
• Operating voltage: 3.7-5V DC
• Size: 40 x 20mm
• Power: 3W

Package Includes: 1x CT14 Micro 4.2 Bluetooth Stereo Amplifier Module

• Bluetooth Version: 4.2 for stable and high-quality audio transmission.
• Lossless Audio Decoder: Ensures high-fidelity MP3 audio playback.
• Compact Design: Small and lightweight, ideal for DIY audio projects.
• Long Transmission Range: Up to 20 meters in open spaces or low interference environments.

Enhance your subwoofer's performance with the Low Pass Filter Board Active for Subwoofer Bass NE5532. This filter board, model GV-SUB01, operates with an AC double power supply ranging from 9V to 15V, and features a blue LED indicator. Its frequency tuning range of 22Hz to 210Hz ensures excellent bass performance without vocals.

• Model: GV-SUB01
• Power Supply: AC double 9V - 15V
• Blue LED Indicator Light
• Frequency Tuning Range: 22Hz - 210Hz (No vocals)

Package Includes: 1 x Low Pass Filter Board Active For Subwoofer Bass NE5532