TPA3116D2 100W Mono Subwoofer Amplifier Board DC 9-24V

$39.11 USD $43.88 USD

TPA3116D2 100W Mono Subwoofer Power Amplifier Board – DC 9–24V

Upgrade your audio setup with this high-performance TPA3116D2-based mono subwoofer amplifier board. Built around a premium digital power amplifier chip in a parallel bridge configuration, this ready-to-use board delivers up to 100W of clean bass channel output — perfect for DIY speaker builds, home audio systems, and car audio projects.

With a wide DC 9–24V operating voltage range, it works seamlessly with switching power supplies, laptop adapters, rechargeable battery packs, or car power supplies, giving you maximum flexibility. The board's energy-efficient design achieves over 90% efficiency, so you get powerful sound without wasting energy.

Made in Mainland China.

Key Features

TPA3116D2 Digital Amplifier Chip – industry-trusted for high-fidelity bass amplification
100W Mono Bass Output – parallel bridge connection for maximum subwoofer performance
Wide Voltage Range – operates on DC 9V to 24V from a variety of power sources
Built-in Pre-amplification & Bass Crossover – integrated signal processing for deep, rich bass tones
2 Adjustment Potentiometers – independently control bass volume, bass frequency, and master volume
Over 90% Power Efficiency – energy-saving design keeps heat low and performance high
Ready-to-Use Finished Board – fully welded and tested; simply connect your speaker, power supply, and audio source
External Audio Source Input – compatible with most standard audio input devices
Durable Construction – PCB, electronic components, and metal build in classic black

Specifications

Core Chip: TPA3116D2 High-Performance Digital Power Amplifier
Output Power: 100W (bass channel, mono)
Operating Voltage: DC 9V – 24V
Efficiency: >90%
Channel Configuration: Mono (Parallel Bridge)
Material: PCB + Electronic Components + Metal
Color: Black

What's in the Box

1 × TPA3116D2 Power Amplifier Board (fully assembled & tested)
1 × Accessory Set (color random, cannot be specified)

Note: Due to component batching, electronic parts on the board may vary slightly from product images, but functionality remains identical. Color may appear slightly different due to display settings. Measurement tolerance: ±1–3 cm.

Frequently Asked Questions

Q: What power supply can I use with this TPA3116 subwoofer amplifier board?

A: This amplifier board accepts any DC power supply between 9V and 24V. Compatible options include switching power supplies, laptop power adapters, rechargeable battery packs (charging bottles), and car power supplies. Higher voltage within the supported range generally yields more output power.

Q: Is this amplifier board ready to use out of the box?

A: Yes! The board is fully welded and factory-tested. Simply connect your subwoofer speaker box following the included wiring diagram, attach an appropriate DC 9–24V power supply, and plug in your audio source — it's ready to go with no additional soldering required.

Q: What audio sources are compatible with this amplifier board?

A: The board features an external audio source input interface that is compatible with most standard audio sources, including smartphones, media players, computers, and other devices with a standard line-level output. The onboard pre-amplification and bass crossover circuitry process the signal internally before amplification.

Q: How do I adjust the bass and volume on this board?

A: The board includes 2 onboard adjustment potentiometers that let you independently control the bass volume, bass crossover frequency, and master volume — giving you fine-tuned control over your subwoofer's sound characteristics without any additional hardware.

Production & Packaging Notice

To maintain high stock availability and fast shipping times, our items are sourced from multiple verified manufacturing facilities. While the core quality, materials, and product specifications remain identical, you may notice slight variations in the packaging design, manufacturing origin, or the wording of the printed instructions.