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The Dayton Audio SPA250DSP digitally processed plate amplifier offers an elite level of control over your entire system (i.e. subwoofer and mains). This unique amplifier allows you to fine tune your system's low frequency performance, and at the same time high pass to your mains (or satellites) protecting them from damage due to over excursion.
Single-knob control panel with high-contrast LCD display and status LEDs
Fast, intuitive PC-based GUI software enables full access to the DSP functions
Efficient Class D output topology ensures high-impact low frequency performance
Includes both balanced and unbalance line level inputs and outputs
Dayton Audio SPA250DSP 250W Subwoofer Plate Amplifier with DSP
Dayton Audio's SPA250DSP true 250 watt digital switching plate amplifier features advanced signal processing control that every audio enthusiast wants. This power and flexibility is accessible via PC-GUI software and our innovative single-knob LCD control panel.
DSP Plate Amplifier Features
1.Power Mode: Select the either energy-saving or “always-on” power mode
Auto: Amp goes into standby after no detected signal input for 20 minutes*
On: Amp is always on, regardless of input signal status.
* Amp will automatically turn on typically in one second or less once audio signals are resumed.
2. Analog input attenuation: Affects analog balanced and unbalanced inputs only.
Normal: No attenuation.
Hi: Attenuates input signal by -6dB.
3. USB Control: Used for PC-GUI communication with custom PC software included with your amp.
4. Feature Control: Single knob digital actuator with single/double-click enabled with rotary scrolling to navigate the amp’s extensive feature menu.
5. Limiter LED: Lit when Limiter is active (Red).
6. Standby/On LED:
Red when amp is in energy saving “stand by” state.
Green when amp is operating normally.
DSP Processing Block Diagram
Controlling your Subwoofer via PC GUI
USB link indicator: When the communication via USB with amp is successful, the GUI’s LED indicator will light green. Otherwise, LED stays red.
Processing Selection: Navigate across the DSP menu to adjust various DSP parameters.
Sub in/out monitor: Monitor the input signal and sub output signal levels.
Tools Drop Down Menu: Utilities for amp DSP management.
Volume: Adjust the level (gain) of the subwoofer output.
Phase: Continuously adjustable phase from 0° to 180°.
Low Pass and Subsonic Filters
Filter ON/OFF Button: Enable or disable the selected filter.
Slope: Select roll-off gradient of the selected filter: -12dB/-24dB per octave.
Frequency (Hz): Adjust cut-off frequency of the selected filter
5-Band Parametric Equalizer
PEQ Window: Graphical trace is NRT editable. Bands can be shaped by cursor or direct input and/or sliders
5 Band-digital PEQ adjustments:
Band On/Off: Bypass or enable by clicking the colorized 1~5 buttons
Center Frequency (CF): Adjust Center Frequency of each EQ band, 10~200Hz, steps: 1Hz.
Gain: Adjust the EQ gain (apparent volume), -12 ~ +6dB, steps: 0.1dB
Great little amp! I've not got to grips with all the dsp features yet, but easy to set up to start and to fine tune. I've used the LFE from an amp and level is a little low for it, however playing around with the enclosure can get more out of it. Still big sound from a 12" 300W sub!
By Craig R. on 5 February 2019
4 of 5
By Michel K. on 24 September 2018
4 of 5
Works well, only small problem with too long USB cable. The computer does not recognises the amp when using a 3 mtr USB cable.
By Lukro B. on 19 September 2018
4 of 5
Geweldige mogenlijkheden. heel goed af te stemmen op de gebruikte subwoofer, en de invloed van de huiskamer.
Het Subsonic filter zou een ietsje lager kantelpunt kunnen hebben.
nog niet zo lang in gebruik, maar nu eigenlijk al tevreden.
By A v. on 2 July 2018
5 of 5
Great Amplifier! Works great!
By iMarc on 16 May 2018
5 of 5
Great, it works perfekt together with my monitor speaker Neumann KH120A.