SPA300-D 300 Watt Class-D Subwoofer Plate Amplifier

Quick Overview

The Dayton Audio SPA300-D high-efficiency subwoofer plate amp packs big-amp features into a compact chassis that is ideal for installation into cabinets that can't accommodate bulky old-style amps.

Product Highlights

  • 300W RMS Output @ 4 ohms
  • Switchable 6 dB @ 30 Hz bass boost
  • Class-D output stage for highly efficient, well defined output
  • Manual and Auto 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

Product Manuals / Spec Sheets / Downloads

Dayton Audio SPA300-D User Manual

Dayton Audio SPA300-D 300 Watt Class-D Subwoofer Plate Amplifier

The plate amplifier that packs a punch!

The Dayton Audio SPA300-D high-efficiency subwoofer plate amp packs big-amp features into a compact chassis that is ideal for installation into cabinets that can't accommodate bulky old-style amps. A Class-D topology makes it small, but with the same output capability as a traditional amplifier topology. We've included everything that you need to connect the amp to your system and get maximum performance!


    Key Specs:

     
  • Channels: 1
  • Power Handling @ 4 ohms (RMS): 300 Watts
  • Power Handling @ 4 ohms (MAX): 600 Watts
  • Frequency Response: 40Hz - 200Hz
  • Inputs: 2x RCA Inputs
  • Outputs: 1x Powered Output
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USB Power Out

Attach a Dayton Audio WLS System to the USB output and enjoy a wireless connection from your stereo system

Variable Crossover

Maintain a smooth transition from your full-range speakers with a variable low-pass filter.

Bass Boost

Get maximum performance from smaller drivers and enclosures with a switchable 6dB boost at 30Hz.

Auto-On

When no signal is present, the SPA300-D will shut itself off until you need it most!


Class-D Excellence

 

The efficient class-D design keeps size and weight to a minimum while providing maximum power to your driver. SPA-D Amplifiers are perfect for subwoofer duty due to their high efficiency and low noise volume at lower frequencies making amplification selection easier than ever.


Connectivity

 
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Front:

1. USB Power Supply - 5V 500mA USB power supply. This output will supply power when the amplifier is on or in stand-by mode.

2. Low-Level Inputs (Left/Right) - RCA Style jacks that will accept standard line level inputs from a pre-amp level source.

3. Output Lead for Subwoofer Driver - This rear mounted output lead connects the amplifier to the subwoofer driver

4. Power Input - This unit features an IEC Type power jack.

5. Power/Clipping LED - This LED indicator will display the current status of the amplifier.

6. Volume (Gain) - This control will match the amplifier's input sensitivity to the output of the pre-amp source.

7. Frequency (Low-pass crossover) - This sets the highest frequency the subwoofer will reproduce and has a range between 40-200Hz with a slope of 18dB/Oct.

8. Phase - This two-position switch helps to compensate for differences between the acoustical and electrical characteristics between the subwoofer and main speakers.

9. Auto Turn On/Off - When the "auto" position is selected the amp is in standby mode until an input signal is detected.

10. Bass Boost - This allows the user to add a 6dB boost to the response centered at 30Hz.

11. Voltage Selector Switch - This switch allows the user to select 115/120VAC or 230/240VAC operation.

12. Main Power Switch - Main power disconnect.

 

Specifications:

  • Channels: 1
  • Power Handling (RMS): 300 Watts
  • Power Handling (MAX): 600 Watts
  • Frequency Response: 20 - 200Hz
  • Input Sensitivity: 200 mV
  • SNR, A-Weighted: 101 dB
  • Total Harmonic Distortion: <1.5%
  • Inputs: 1
  • Power Requirements: 115 - 230 VAC
  • Power Consumption: 300 Watts
  • Dimensions: 7-1/6" W x 2-1/8" D x 8-1/16" H
  • Weight: 2.2 lbs.

Model Number SPA300-D
Color Black
Unit of Measure Each
UPC 848791008221
Warranty - Parts 5 Years
Warranty - Labor 5 Years
Product Shipping Weight (lbs.) 4
Product Weight --
Product Height 8-1/16"
Product Width 7-1/6"
Product Length --
Product Depth 2-1/8"
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