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SPA1200DSP 1200W Subwoofer Amplifier with DSP

Quick Overview

Thanks to the Dayton Audio SPA1200DSP digitally processed plate amplifier, its possible to experience professional-level control over your subwoofer. Fine tune your systems low frequency performance, with groundbreaking power and finesse!

Product Highlights

  • Make adjustments from the comfort of your favorite listening chair!
  • DSP processing functions include PEQs, HPF, LPF, Phase, Sub Tuning, Mains Delay
  • Built-in Auto Room EQ function and microphone for room calibration
  • 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
  • iPhone Wi-Fi remote control app for convenient control via smart device
  • Super-efficient Class D output topology ensures tight, high-impact low frequency performance

Product Manuals / Spec Sheets / Downloads

Dayton Audio SPA1200DSP User Manual
Dayton Audio SPA DSP Plate Amplifier PC Software and GUI

Dayton Audios SPA1200DSP true 1,200 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, our innovative single-knob LCD control panel, or an iPhone feature management app.

Feature Control Panel Key

Dayton Audio SPA1200DSP 1200W Subwoofer Amplifier with DSP

Power ON LED: Green LED when amp is operating normally
Standby (STB) LED: Red when amp is in energy saving "stand by" state
Limit LED (Yellow): Lit when Limiter is active
Feature Setup: Single knob digital actuator with single/double-click enabled with rotary scrolling to navigate the amps extensive feature menu.
Feature controller display (128 x 64 pixel): Liquid Crystal Matrix (LCM) displays all of the feature menu and status.

Amp System Block Diagram

Dayton Audio SPA1200DSP 1200W Subwoofer Amplifier with DSP Dayton Audio SPA1200DSP 1200W Subwoofer Amplifier with DSP

DSP Processing Block Diagram

Dayton Audio SPA1200DSP 1200W Subwoofer Amplifier with DSP

Controlling your subwoofer via PC GUI

Dayton Audio SPA1200DSP 1200W Subwoofer Amplifier with DSP

Read Setting Read all the settings from amp
Save Settings to File Save current settings to PC
Load Settings from File Load previous saved setting to AMP
Reset to Default Setting Reset the AMP to factory default


Dayton Audio SPA1200DSP 1200W Subwoofer Amplifier with DSP

USB Link Indicator: When communication via USB with amp is successful, the GUIs "LED" indicator will light blue. Otherwise, the "LED" stays dark.
Processing Selection: Selecting any icon can effect change in near-real time (NRT) to the amps audio outputs.
Main Control Screen: Control each DSP processing parameters: Threshold Power, Attack Time, Release, along with 5 digital PEQ bands.
Sub In-Out Monitor: Monitor the input signal and sub output signal levels.
Tools Drop Down Menu: Utilities for amp DSP management, plus Wi-Fi settings.
NOTE: The GUIs graphical trace is NRT editable. Bands can be shaped by cursor or direct input and/or sliders.

Detailed tool tips (shown a-d above):

5 Band Digital PEQ
a) Band On/Off: Bypass or enable by clicking the colorized 1 ~ 5 buttons.
b) Center Frequency (CF): Adjust Center Frequency of each EQ band, 20 ~ 200Hz. Steps: 1Hz.
c) Gain: Adjust the EQ gain (apparent volume), -12 ~ +6dB. Steps: 1dB.
d) Q (EQ Width): Adjust the "Q" value, 0.4 ~ 11. Steps: 0.1Q.

Limiter: Adjust, optimize, save, recall.
a) Threshold: Adjust the limiter "threshold power", 0 ~ -12dB. Steps: 0.1dB
b) Attack: Adjust limiter "attack time". This controls the allowed amount of time signals may be over threshold power. Range of adjustment is 0.1 ~ 100ms (milliseconds). Steps: 0.1ms
c) Release: Adjust limiters "release time". When limiter is triggered, this control adjusts the time allowed to restore full power. Adjustable range 100 ~ 5000ms. Steps: 0.1ms.

Custom algorithms apply intelligent multi-band room equalization (iEQ™)

Dayton Audio SPA1200DSP 1200W Subwoofer Amplifier with DSP

The included 20Hz-capable iEQ microphone allows estimation of your rooms natural frequency response characteristics and precisely applies PEQ filters to compensate for inevitable response anomalies. Plug the microphones 3.5mm "male" fitting into the amp panels "female" jack labeled "Mic In" for this procedure.

Measurement of room acoustics requires moving your EQ mic through the rooms listening and/or viewing "sweet spots", typically affixed to a photo tri-pod for best acoustical results. Only three different positions are required, as testing actually captures 12 measurements per location (automatically averaging each result).

Starting iEQ: Selecting the GUIs button starts custom calibration test tones. After moving your mic to three different listening locations and estimations are finished, the system screen will display the final measured and calculated post-equalized frequency response results.

Controlling the Subwoofer via the Control Panel

Dayton Audio SPA1200DSP 1200W Subwoofer Amplifier with DSP

Dayton Audio SPA1200DSP 1200W Subwoofer Amplifier with DSP

Volume, Phase, Low-Pass Filter and all other controls are also accessible via the included rotary control.
Volume (shown above) is selected by a single click, upon which simple rotation allows 1dB adjustment.

A "double-click" brings you back to the main menu. Subsequent rotation of the controller from the main menu navigates you through a series of setup menus.

Each of the "Function frames" at left correspond to the major feature controls on the amp. Each feature control uses the same single/double-click navigation.

Note all detailed sub-features on the next page.

Scroll around your amp and get familiar with its simple click and double click feature rotation.


Sub Remote Control iPhone App now available:

Specifications: • Power output: 1,200 watts RMS into 4 ohms, THD+N <0.1% • Signal to noise ratio: 102 dB (A-weighted) • Power requirements: 110~120/220~240 VAC selectable, 50/60 Hz • Amplifier dimensions: 10.75" H x 9.5" W x 2.875" D; Amplifier cutout: 9.5" H x 8.25" W • Control panel dimensions: 3.5" H x 5.75" W x 1.25"; Control panel cutout: 2.5" H x 4.75" W.

Model NumberSPA1200DSP
List Price $799.99
Unit of MeasureEach
Warranty - Parts5 Years
Warranty - Labor5 Years
Product Shipping Weight (lbs.)7.55
Product Weight--
Product Height 10.75"
Product Width9.5"
Product Length--
Product Depth2.875"