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CA-3166B 100W+2*50W BT Digital Audio Power Amplifier Board TPA3116D2 for Receivers & Amplifiers

Specification	Details
Amplifier Chip	Dual TPA3116D2
Output Power	50W x 2 (Stereo) + 100W (Subwoofer)
Bluetooth Version	5.0 (High-Fidelity)
Input Voltage	DC 12V to 24V (5A+ Recommended)
Input Methods	Bluetooth + 3.5mm AUX
Efficiency	> 90%
SNR	100 dB

Price

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₹ 847.46

(Tax included)

बारकोड: 1452

Product Description

The CA-3166B is engineered for precision and durability. It features a high-density PCB with large aluminum heatsinks to ensure stable performance under continuous high-load operation. The board is equipped with Bluetooth 5.0, offering a wireless range of up to 10-15 meters with minimal latency. It also supports 3.5mm AUX input for wired sources. With five onboard potentiometers, users can independently adjust Master Volume, Subwoofer Volume, Subwoofer Frequency, Stereo Treble, and Stereo Bass to perfectly match their speaker setup and room acoustics.

Key Features

Dual TPA3116D2 Architecture: Delivers highly efficient digital amplification with low heat generation and audiophile-grade sound reproduction.
Precision Audio Tuning: Five dedicated control knobs allow for granular control over the subwoofer crossover frequency and individual channel tones.
Robust Connectivity: Seamlessly pairs with smartphones, tablets, and smart TVs via Bluetooth, or connects to PCs via the AUX port.
Integrated Safety: Features built-in protection against over-voltage, under-voltage, overheating, DC detection, and short-circuits.
Flexible Powering: Compatible with standard 12V to 24V DC sources, including common laptop power adapters.

Technical Details

Board Dimensions: Approx. 116mm x 45mm x 30mm.
Subwoofer Frequency Range: 20Hz – 200Hz.
Switching Frequency: 1.2 MHz.

Prototyping and Engineering Tips from Robogears

Power Supply Selection: To unlock the full 200W output, use a 24V 10A DC power supply. A 12V supply will work but will result in significantly lower volume and less "punchy" bass performance.
Speaker Pairing: This board is optimized for 4-Ω to 8-Ω speakers. Ensure your subwoofer is rated for at least 100W to avoid damaging the speaker at high volumes.
Minimizing Interference: If you hear noise or a "hum," use high-quality shielded audio cables for the AUX input and ensure the power supply is properly filtered and distanced from the audio circuitry.
Thermal Management: While the board has a heatsink, if you are mounting it inside a tight enclosure, we recommend adding a small 40mm cooling fan to maintain optimal temperatures during extended use.

Package Includes

1 x CA-3166B 2.1 Channel Bluetooth 5.0 Amplifier Board

Disclaimer

Always verify DC polarity before connecting power to prevent permanent damage to the ICs. High-power output can cause hearing damage; start with the volume at the minimum setting when testing.

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