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

Explore our Mono Amplifier Board featuring 8 high-quality transistors. This amplifier board utilizes two 5200 and two 1943 transistors (not included), delivering reliable performance. It operates on a supply voltage ranging from DC 12V to 35V, suitable for various audio applications.

Key Features:

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

• 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

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

NE5532 Stereo Pre-Amplifier Volume Control Board

Upgrade your audio experience with the NE5532 Stereo Pre-Amplifier Volume Control Board. This board allows for precise control over treble, midrange, and bass, ensuring high-quality sound output for your projects.

• Color: Blue
• Material: Resin
• Size: 11.2cm x 7cm x 2.3cm
• Supply voltage: AC 12V

Package Includes: 1x NE5532 Stereo Pre-Amplifier Volume Control Board Treble Midrange Bass Tone Controls

• 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

• Bluetooth Version: 5.0
• Operating Voltage: 3.7V ~ 24V DC
• Transmission Distance: Up to 15 meters (visible and unobstructed)
• Signal to Noise Ratio: ≥90dB

• High Output Power: Provides up to 30W per channel at 24V with an 8Ω load.
• Adjustable Volume Potentiometer: Allows for easy volume control and customization.
• Class D Amplification: Uses PWM modulation for efficient power use.
• Dual Channel Stereo: Supports two channels for a rich stereo sound experience.

• 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

• Bluetooth 4.1 technology for stable wireless audio streaming
• Supports multiple profiles: A2DP, AVCTP, AVDTP, AVRCP, HFP
• High-quality sound with SNR of 90dB, THD+N of -70dB, and DNR of 91dB
• Crosstalk reduction with -86dB for clearer audio

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

• 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

• High Output Power: 15W x 2 output for clear and powerful audio.
• Wide Voltage Range: Operates within a DC 8-18V input voltage range.
• Low Static Current: 8mA static state for energy-efficient operation.
• High Efficiency: ≥90% efficiency for better performance.

The TDA7293 100W Digital Audio Amplifier is a high-power, single-channel amplifier designed to deliver exceptional sound quality. Ideal for home audio systems and DIY audio projects, this amplifier provides reliable performance and robust output power.

Key Features:

• Chip: TDA7293
• Power Supply: AC 12V-32V
• Channel Type: Single Channel
• Output Power: 100W
• Load Type: 4-8 Ohm Speaker
• Input Impedance: 100K Ohm
• Frequency Range: 20Hz-20KHz
• Size: 60mm x 45mm x 35mm

• 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)

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