• 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)

• 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

Upgrade your audio system with the TPA3116D2 100W Subwoofer Amplifier Board with NE5532 OPAMP. This amplifier module offers high-quality sound performance and versatile power options, perfect for enhancing your subwoofer audio experience.

Key Features:

• High-performance TPA3116D2 digital amplifier chip
• Includes NE5532 operational amplifier
• Power range: 8V - 25V
• Single channel output: 100W
• Dual channel output: 50W (left channel) + 50W (right channel)
• Compact PCB size: 78mm x 60mm
• 5.5mm power jack interface

• 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

Enhance your audio projects with the TDA8954TH 420W Mono Channel Digital Amplifier Board HW-717. This high-power amplifier is designed for optimal performance in mono channel applications, delivering clear and powerful sound.

Key Features:

• High power output: 420W
• Kernel chip: TDA8954TH
• Input voltage: recommended double 24V (range double 12-28V)
• Output impedance: 4-8Ω
• Compact size: 80mm x 75mm x 33mm
• Mono channel design

The TDA7492P 2x50W Bluetooth V4.0 Audio Receiver Power Amplifier Board is designed to deliver high-quality audio with ease. It supports a power supply of 8-24V DC and can drive impedance of 4, 6, 8, or 16 ohms, with 8 ohms being optimal. Featuring Bluetooth version 4.0, this amplifier ensures seamless wireless connectivity. It has audio output terminals and an additional Pre-5532 output foot for enhanced performance. The board measures approximately 8.2 x 5cm, making it compact and easy to integrate into your projects.

Key Features:

• Power Supply: 2.1 interface 8-24V DC
• Output Impedance: 4, 6, 8, 16 ohms (8 ohms optimal)
• Bluetooth Version: 4.0
• Audio Output: Terminals
• Output Power: Add Pre-5532 Output Foot
• Size: Approximately 8.2 x 5cm

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

• 2x5W output power for high-quality audio
• Built-in Bluetooth 4.2 for wireless audio streaming
• Supports multiple audio file types (WAV/WMA/FLAC/APE/MP3)
• Compact design with easy integration into projects

Presenting our Mono Amplifier Board featuring 16 transistors. This amplifier board uses two 5200 and two 1943 transistors (not included), delivering powerful performance. It operates on a supply voltage ranging from DC 12V to 35V, making it ideal for various audio setups.

Key Features:

• 16 high-quality transistors
• Uses 5200 and 1943 transistors
• Mono amplifier design
• Wide supply voltage range: DC 12V to 35V

• Operates with AC 12-15V voltage (requires a separate power supply)
• Equipped with UPC1237 integrated circuit for reliable speaker protection
• Includes delay-on functionality to protect speakers from DC signals
• Heat sink on the relay power supply IC for efficient heat dissipation

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

• High Power Output: Delivers up to 60W peak power for crisp and clear audio
• Compact Design: 13 x 10 x 4 cm size makes it perfect for DIY audio projects
• Versatile Application: Suitable for car audio systems, home audio setups, and custom sound projects

The TPA3110D2 Stereo Audio Amplifier Module delivers high-quality stereo sound with an output power of 15W per channel. Ideal for various audio projects. Key features include:

• Chip: TPA3110D2
• Input voltage: 8-24V
• Output Power: 15W * 2
• Two-channel stereo
• Size: 40.2 * 30mm

Enhance your audio experience with our Stereo Tone Board. This high-quality tone board operates on a 12V DC input, delivering exceptional sound performance for various audio applications. Perfect for both personal and professional use.

Key Features:

• Stereo tone board design
• High-quality sound performance
• 12V DC input voltage
• Ideal for personal and professional use

• High output power: 75W*2 for the left and right channels, plus 150W for the subwoofer
• HiFi quality sound with less than 1% Total Harmonic Distortion (THD+N)
• Signal-to-Noise Ratio (SNR) greater than 100dB for superior audio clarity
• Bluetooth 4.0 support for wireless audio streaming

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.