Dayton Audio SPA250 - 250 Watt Subwoofer Plate Amplifier

Manual

Dayton Audio SPA250 250 Watt Subwoofer Plate Amplifier

Engineered to provide flexibility, ample power, and reliability, the Dayton Audio SPA250 delivers high fidelity subwoofer amplification and is tailored for home audio and home theater audio systems.

Highlights

Switchable 6 dB @ 35 Hz bass boost

Mono Class AB output stage for solid, well defined output

Low-level and high-level inputs connect to any system

Manual, auto, or triggered on/off modes for compatibility with any automated system

Variable gain, crossover point and switchable phase controls optimize room integration

Switchable 120/240V input voltage

Energy efficient—draws less than 1 watt in stand-by mode

Product Details

Dayton Audio SPA250 250 Watt Subwoofer Plate Amplifier

Bass boost or flat…you choose and the SPA250 delivers!

The Dayton Audio SPA250 subwoofer amplifier produces 250 watts of clean power output, and combines with a host of flexible user options to make it an unbeatable choice. A user-configurable bass boost circuit creates a 6 dB peak at 35 Hz, which allows sealed subwoofer designs and certain ported enclosures to achieve their optimum bass extension and maximum "flat" output.

Connects to almost any home audio system, and does it with ease

The SPA250 features RCA line level and banana jack speaker level inputs and outputs, automatic power-on that is triggered by any audio input signal, and a phase reverse switch to match the subwoofer to your room and your other speakers. A single amp can accept a stereo input signal and combine it into mono, which is preferred for sub bass reproduction. A preamp or receiver's LFE output may be connected to the SPA250's Left (mono) input. The internal low pass crossover is fully adjustable between 40 and 180 Hz, and of course the amp has built-in protection against internal and external faults.

We haven't run out of great features to talk about:

Variable low-pass filter at 24 dB/octave attenuation from 40 Hz ~ 180 Hz

Switchable phase 0° (NOR) or 180° (REV)

Variable gain MIN/MAX input voltage dependent

Speaker level high-pass outputs 6 dB/octave at approximately 180 Hz @ 4 ohms, 90 Hz @ 8 ohms (i.e. 220 uF electrolytic capacitor)

Line-level full bandwidth (10 Hz- 20 kHz) outputs/throughputs for adding or "daisy chaining" additional amplifiers

Subsonic filter 12 dB/octave high-pass filter centered at 20 Hz

Damping factor at rated power: 114 @ 100 Hz