Dayton Audio SPA250 250 Watt Subwoofer Plate Amplifier

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  • Article code: SPA250
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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.

€ 199,95 Incl. 21% VAT

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Product description

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.



  • 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



Specifications for: SPA250 250 Watt Subwoofer Plate Amplifier

  • Rated power output (RMS) The electrical power measured in watts (W) that an amplifier can output per channel, without damaging the amplifier or the output signal is çlipped'. RMS = Root Mean Square.

    1 x 252 watts at 4 ohms
    1 x 156 watts at 8 ohms

  • Bridged rated power output (RMS) SPEC Bridged rated power output (RMS) -
  • Minimum load Shows the minimum load that an amplifier can control in ohms. A lower impedance of a speaker is not recommended if it is lower than the minimum impedance of an amplifier. An amplifier works best when the impedance of the speaker falss within the impedance range that the amplifier prescribes (for example, 4 to 8 ohms). 4 ohms
  • Signal-to-noise ratio (SNR) Shows the strength level of signal power compares to a level of noise power. Generally, higher values ​​means better specification. 90 db
  • Distortion Measured in Total Harmonic Distortion + Noise (THD+N). The lower this figure, the closer the output of the amplifier will sound to the original recording. -
  • View all specifications
  • Distortion bridged -
  • Amplifier classification Class AB
  • Circuit topology -
  • Efficiency -
  • Frequency response -
  • Input impedance 10.4k ohms
  • Input sensitivity -
  • Auto turn-on sensitivity ≥10 mV
  • DSP -
  • DAC -
  • Maximum sampling rate -
  • Speaker output channels 1 (+2 high level pass through channels)
  • Analog in/out 2/2
  • S/PDIF in/out -/-
  • AES/EBU in/out -/-
  • Coaxial in/out -/-
  • RCA in/out 1/1
  • XLR in/out -/-
  • Jack in/out -/-
  • USB connection -
  • Network connection -
  • Bluetooth -
  • Subwoofer pre-out -
  • Auto on/off
  • Remote control -
  • App control -
  • Equalizer (EQ) adjustment -
  • Equalizer (EQ) profiles -
  • Phase control (0° or 180°)
  • Crossover frequency adjustment
  • Presets -
  • Control software -
  • Windows/Mac compatible -/-
  • Power requirements 115/230 VAC
  • Power inlet connector IEC C18
  • Standby power consumption 0.29 watts (at 115 VAC)
  • Current limit -
  • Under/over voltage protection -
  • Dimensions (H x W x D) 249 x 249 x 127 mm
  • Cutout dimensions 216 x 216 mm



User reviews 5 / 5 Reviews: (1)

  • AE By Antony E. on 26-03-2019 19:53

    5 / 5

    very good quality. not fitted yet though

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SPA250 250 Watt Subwoofer Plate Amplifier

SPA250 250 Watt Subwoofer Plate Amplifier

€ 199,95

SoundImports 9,6 / 10 - 2.351 Reviews @ Kiyoh
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