Dayton Audio KABD-4100 | BT 5.0 | DSP | Amplifier module

The Dayton Audio KABD-4100 is a compact all-in-one amplifier board designed to deliver high-quality multi-room audio throughout your home. This versatile booster module provides four channels of amplification, making it an ideal solution for whole-house audio systems, custom installations, or upgrading existing speaker setups with modern wireless capabilities.

Perfect for DIY enthusiasts and professional integrators alike, the KABD-4100 excels in distributed audio applications where multiple speakers need independent power. Use it to drive ceiling speakers in different rooms, create a wireless multi-zone system, or power a passive subwoofer alongside satellite speakers. Its compact footprint allows for easy integration into cabinets, media consoles, or dedicated equipment racks.

Technically, this amplifier board delivers 4 x 100W of nominal power with a minimum load of 4 ohms, ensuring robust performance for most home speakers. The integrated Bluetooth 5 module enables seamless wireless streaming from smartphones, tablets, or computers with low latency and stable connectivity. Signal-to-noise ratio measures an impressive 97 dB (A-weighted) at 2 x 50W into 8 ohms, while total harmonic distortion remains below 0.07% at 10W into 6 ohms. Frequency response spans 20 Hz to 20 kHz (±3 dB), and the board features a gain of 26 dB. Physical dimensions are 122 mm x 92 mm x 127 mm, with mounting holes spaced 111.76 mm x 81.28 mm apart and a diameter of 3.8 mm.

This all-in-one solution combines power, wireless convenience, and compact design, making it an excellent choice for modern audio installations.