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

Read 86 Reviews | 52 Questions, 264 Answers or

Part #300-806

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

Part #300-806

Read 86 Reviews | 52 Questions, 264 Answers or

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.

Key Features

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
With a Dayton Audio 5 year warranty, it’s more than a guarantee, it’s a promise. We stand behind our products and our warranty is a demonstration of our commitment to quality and reliability.

Overview

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

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 Output @ 4 ohms (RMS): 300 Watts
Power Output @ 4 ohms (MAX): 600 Watts
Frequency Response: 20Hz - 200Hz
Inputs: 2x RCA Inputs
Outputs: 1x Powered Output

We Got Your Back

We stand behind our products and our warranty is a demonstration of our commitment to quality and reliability.

FULL SPECIFICATIONSManual

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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

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.

Shop More Plate Amps

Build your own high-quality integrated powered subwoofer speaker system, or upgrade an existing setup. The performance, features, and warranty of the amplifier solutions found at Parts Express far exceed those of many similar products. These amps are designed to "do it all" when matched with the appropriate subwoofer enclosure and loudspeaker driver.

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: 8-1/16" H x 7-1/16" W x 2-1/8" D
Cutout Dimensions: 7" H x 6" W
Weight: 2.2 lbs.

Additional Resources

We pride ourselves on being an authority in the speaker building and DIY community. With over 60 years of combined engineering experience, our team of engineers is here to help with your build. Below are some useful tools to get you started.

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Product Details
Brand	Dayton Audio
Model	SPA300-D
Part Number	300-806
UPC	848791008221
Unit of Measure	Each
Weight	3.1

Quantity:Qty: 1-3	$148.98/ea
Quantity:Qty: 4+	$141.53/ea

Product Categories

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

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

Overview

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

The plate amplifier that packs a punch!

Key Specs:

We Got Your Back

USB Power Out

Variable Crossover

Bass Boost

Auto-On

Class-D Excellence

Connectivity

Front:

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