Dayton Audio KAB-215v2 2 x 15W Bluetooth Amplifier Board - Efficient

In this review the Dayton Audio KAB-215v2 is examined as a compact, efficient amplifier board for DIY audio projects and small powered speaker systems. The bottom line: this board is for builders who want reliable, hi-fi sound with an integrated Bluetooth 5.0 receiver and minimal fuss. The key selling point is the highly efficient AD82110 Class D amplifier chip that delivers two channels of 15 watts while running cool enough to avoid a heat sink, making it especially useful for battery-powered or space-constrained designs.

Key Features

• Integrated Bluetooth 5.0: Built-in wireless connectivity removes the need for a separate module and simplifies sourcing for a compact build.
• High efficiency Class D amp: The AD82110 chip runs at about 90% efficiency, reducing power draw and heat for longer battery playtime and smaller enclosures.
• 2 x 15W output: Provides enough power for bookshelf speakers or desktop systems while keeping distortion low for clear sound.
• Ready-to-install wiring: Included power and speaker output cables and wire harnesses enable quick installation with no soldering required.
• Flexible power options: Separate ports for battery power or direct DC input let builders choose portable or mains-powered setups without modifications.

Who It's For

The KAB-215v2 suits hobbyists building small stereo speakers, desktop audio rigs, or portable systems who value simple setup and integrated Bluetooth. Its efficient Class D design is particularly attractive for battery-powered projects and installations where space and heat dissipation are limited.

Less suitable are users needing very high power for large floor-standing speakers, or those who need a full-featured preamp with multiple analog inputs and tone controls. If a built-in DAC with digital inputs is required, a different board would be a better fit.

Pros & Cons

Pros

• Integrated Bluetooth 5.0 eliminates the need for extra wireless parts and reduces build complexity.
• High efficiency AD82110 Class D amp keeps the board cool and extends battery run time.
• Included cables and wire harnesses make installation quick and solder-free for rapid prototyping.
• Separate power ports provide flexible powering options for both portable and stationary use.

Cons

• Limited to 2 x 15W output, so it is not suitable for driving large, power-hungry speaker systems.

Specifications

Brand	Dayton Audio
Amplifier chip	AD82110 Class D
Output power	2 x 15W
Wireless	Bluetooth 5.0 built in
Installation	Includes power and speaker cables, wire harnesses, no soldering required
Power options	Separate battery and direct DC input ports

Our Verdict

The Dayton Audio KAB-215v2 is a strong choice for DIYers and small-system builders who want reliable stereo power with integrated Bluetooth and minimal setup work. Its efficient AD82110 Class D design and included harnesses deliver good sound and simple installation, making it good value for compact or battery-powered projects.

Frequently Asked Questions

Does this board include Bluetooth or require a separate module?
The board includes a built-in Bluetooth 5.0 module, so no separate wireless module is needed.

Can it be powered from batteries?
Yes, the board has a separate port for battery powering as well as a direct DC input for adapter use.

Will it run hot under normal use?
Thanks to the high efficiency of the AD82110 Class D chip, the board runs cool and does not require a heat sink for typical small-system use.