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Dayton Audio SPA250 250 Watt Subwoofer Plate AmplifierEngineered to provide flexibility, ample power, and reliabilityThe 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. 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 SPA250 can accept a stereo input signal and combine it into mono, which is preferred for sub bass reproduction. 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.
Key Specs:Channels: 1Power Output @ 4 ohms (RMS): 250 WattsPower Output @ 4 ohms (MAX): 500 Watts Frequency Response: 20Hz - 180HzInputs: 2x RCA Inputs, 2X High-level inputsOutputs: 1x Powered Output, 2x RCA Outputs, 2x High-level PassthroughWe Got Your Back
We stand behind our products and our warranty is a demonstration of our commitment to quality and reliability.
Phase SwitchCorrect misalignment between your speakers and your subwoofer with a phase inversion switch
Variable CrossoverMaintain a smooth transition from your full-range speakers with a variable low-pass filter.
High-Level In/OutHigh-Level inputs and outputs let you use any amplifier to feed the SPA250 and send it out to the full range outputs. Perfect for systems with no subwoofer output
Auto-OnWhen no signal is present, the SPA250 can shut itself off until you need it most!
Class-AB Reliability The classic AB topology keeps distortion to a minimum while providing a peak wattage of 500W to your driver. the SPA250 is perfect for subwoofer duty due to its low noise and reliable performance and protection features.
This product is sold brand new. A manufacturer warranty applies only when the manufacturer provides one for this item.
Return requests must be submitted within 14 days of delivery and approved by our RMA department before the item is shipped back. Non-defective returns may be subject to a minimum 25% restocking fee and return shipping charges. Unauthorized returns are not eligible for credit or refund. Read the full return policy.
A-Class FeaturesOn the SPA250, the input and output connections are through your choice of either line level RCA connectors, or high-level inputs for maximum compatibility. A stereo input signal is summed to mono and sent to the internal low pass crossover, which is selectable from 40 to 180 Hz; the input gain sensitivity is fully adjustable as well. Also included is a phase reverse switch, which helps you to achieve the best acoustical match with the rest of your speakers.
A large surface area heat sink is combined with internal overload, thermal, and short circuit protection so that you can expect years of reliable operation.
Front:1. Low-Level Inputs (Left/Right) - RCA Style jacks that will accept standard line level inputs from a pre-amp level source.
Low-Level Outputs (Left/Right) - RCA Style jacks that will pass the line level inputs through
High-Level Inputs - Accepts speaker level inputs for connection to amplifiers with no pre-amplified subwoofer output.
High-Level Passthrough - allows the speaker level input signal to be passed through to their intended speakers.
Power Input - Built-in power cord for connection to 120VAC mains.
Volume (Gain) - This control will match the amplifier's input sensitivity to the output of the pre-amp source
Frequency (Low-pass crossover) - This sets the highest frequency the subwoofer will reproduce and has a range between 40-180Hz with a slope of 24dB/Oct.
Power LED - When the power switch is moved to the “on” position, the LED will illuminate green, and the amp will be in “On” mode. If the protection circuit detects a short circuit or thermal overload the unit will shut down and the LED will turn red
Power Switch - On, Off and Auto mode. When the “Auto” position is selected, the amp is in “stand by” mode until an input signal of about 10 millivolts or greater is detected. The amp will go back to standby mode 10-15 minutes after the input signal stops
Phase - This two-position (NOR = 0° phase and REV = 180° phase) switch helps to compensate for differences in the acoustical and electrical characteristics between the subwoofer and the main system speakers.
Voltage Selection - Selects 115V or 230V Functionality
Amplified Signal Output - Solderless disconnect terminals for driver connection: Red = 0.25" / Black = 0.205".
Shop More Plate AmpsBuild 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.
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Specifications:Channels: 1Power Handling (RMS): 250 Watts @ 4 ohmsPower Handling (MAX): 500 Watts @ 4 ohmsFrequency Response: 20 - 180HzSNR, A-Weighted: 90 dBTotal Harmonic Distortion: Inputs: 2x RCA Inputs, 2x High-Level InputsDriver Connection: Red = 0.25" / Black = 0.205"Power Requirements: 115 - 230 VACDimensions: 9-13/16" W x 9-13/16" H x 5" DCutout dimensions: 8-1/2"H x 8-1/2" WWeight: 13.4 lbs.
This product is sold brand new. A manufacturer warranty applies only when the manufacturer provides one for this item.
Return requests must be submitted within 14 days of delivery and approved by our RMA department before the item is shipped back. Non-defective returns may be subject to a minimum 25% restocking fee and return shipping charges. Unauthorized returns are not eligible for credit or refund. Read the full return policy.