Dayton Audio SPA250 Subwoofer Plate Amplifier

The Dayton Audio SPA250 Subwoofer Plate Amplifier is a compact yet powerful solution for adding deep, controlled bass to your home audio system. Designed to integrate seamlessly into custom subwoofer enclosures, this amplifier delivers a single-channel output with a minimum load of 4 ohms, ensuring robust and precise low-frequency performance. Ideal for DIY enthusiasts and audio professionals alike, the SPA250 is perfect for upgrading existing subwoofers or building new ones from scratch, bringing cinema-quality bass to music, movies, and gaming setups. Its automatic standby function, with a sensitivity of ≥10 mV, conserves energy by activating only when an audio signal is detected, while consuming just 0.29 W in standby mode at 115 VAC. Technical features include a phase control switch (0° or 180°) for seamless integration with your main speakers, RCA input and output for flexible connectivity, and an IEC C18 power connector compatible with 115/230 VAC mains voltage. The amplifier’s cut-out dimensions of 216 mm × 216 mm and overall size of 249 x 249 x 127 mm make it a straightforward fit for most enclosures. With its combination of efficiency, power, and user-friendly controls, the SPA250 is an excellent choice for enhancing your audio experience.