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Dayton Audio SPA1000 1000W Subwoofer Plate Amplifier

Brand:| Model: SPA1000
The Dayton Audio SPA1000 subwoofer amplifier provides nearly a kilowatt of clean, reliable audio power—just what you need to get big sound out of large, low-efficiency subwoofer speaker systems.
A restocked/refurbished, or Open Box unit of the product is available -- see it now
  • High power Class-AB output stage for clean, controlled output
  • Patented tracking downconverter power supply for high efficiency
  • Toroidal power supply transformer
  • Low frequency parametric EQ allows you to boost or cut for custom-tailored sound
  • Advanced soft clip circuitry improves headroom and protects woofers
  • OTC™ (Optimized Thermal Circuit) protects your plate amplifier from potential heat damage
  • Hercules heat sinks dissipate and control heat for extreme reliability
Part # 
Weight: 22.65 lbs.  
Regular Price$338.80
Sale Price
Dayton Audio Baseball Cap
Qty: 1Part # 520-308
List Price:$19.99
Part # 300-809
Qty:  EA
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Product Details

Dayton Audio SPA1000 1000W Subwoofer Plate Amplifier

The Dayton Audio SPA1000 is one of the most technologically advanced subwoofer amplifiers on the market today! The Dayton Audio SPA1000 subwoofer amplifier is based on a state-of-the-art Class-G circuit topology that combines the proven high power, high fidelity characteristics of a Class-AB amplifier with a patented tracking down converter power supply to achieve an operating efficiency up to 86%. You get the efficiency of a Class-D amplifier without compromising audio quality and reliability. The Class-AB output stage provides the clean and low-distortion sound that audiophiles demand, without any of the instability problems that plague other high-efficiency amplifier designs.

This American-designed and engineered amplifier uses patented circuitry that continuously tracks the input signal to modulate or control the voltage available to the output stage. This "tracking" capability delivers the exact amount of power based on demand instead of constantly keeping it in reserve, so the output stage only draws the amount of power that is required at any given time. Less energy is wasted as heat, and more power is available for the subwoofer driver. With its enhanced thermal management, the SPA1000 is an upgrade over previous models—making it a nearly bulletproof amplifier choice for today's demanding HT audio and music playback applications.

Specifications: • Rated power output: 497 watts into 8 ohms, 950 watts into 4 ohms with 0.92% THD (based on one-third power duty cycle) • S/N ratio: 98 dB (A-weighted) • Low-pass crossover: 30 ~ 200 Hz, 24 dB/octave • Parametric EQ: Frequency: 18 ~ 80 Hz; Bandwidth: 0.1 ~ 1 Q; Level: -14.5 dB to +6 dB • Phase Adjustment: 0° (NOR) or 180° (REV) • Input impedance: 12K ohms • Input voltage: User switchable 115V/230V (Euro cord available) • Stand-by power rating: 115V 24W; 230V 18.4W • Efficiency: 86% • Net weight: 17 lbs. • Dimensions: 11-15/16" W x 11-15/16" H x 5-1/4" D; Cutout dimensions: 10" W x 10" H.

Dayton Audio SPA1000 1000W Subwoofer Plate Amplifier
  • BrandDayton Audio
  • ModelSPA1000
  • Part Number300-809
  • UPC844632081668
  • Product CategorySubwoofer Plate Amplifiers
  • Unit of MeasureEA
  • Product Rating
    (14 Reviews)
  • Weight22.65 lbs.
  • Case Qty2
  • California Prop 65

    Warning: California residents only. Please note per Proposition 65 that this product may contain chemicals known to the State of California to cause cancer and birth defects or other reproductive harm.

View similar products to the Dayton Audio SPA1000 1000W Subwoofer Plate Amplifier
in the Subwoofer Plate Amplifiers product category.


Dayton Audio SPA1000 1000W Subwoofer Plate Amplifier
Dayton Audio SPA1000 1000W Subwoofer Plate Amplifier is rated 4.6429 out of 5 by 14.
Rated 5 out of 5 by from Powerful sub amp!Sounds great. Easy to setup in my cabinet. Really drives low end.
Date published: 2014-11-03
Rated 3 out of 5 by from Has some powerHad a 500 watt subwoofer from an Iowa manufacturer that no longer exists fail. The speaker was capable of handling more that 500 watts so I got the SPA1000. I had to cut the cabinet to make it fit but I was expecting that. After spending some time getting the amp to fit I was very disappointed. The amp rattled horribly. I ended up having to remove the amp and pull the cove to find that pretty much every screw on it was loose. After tightening them all up and putting it back together it works great. More than enough power for movie watching.
Date published: 2014-08-09
Rated 5 out of 5 by from Fantastic BaseFills the room with base when combined wity the 15" titanic Mark IV. External heat sinks for prolonged life. It truely rattles the windows in the house.
Date published: 2014-06-22
Rated 4 out of 5 by from Good valueI have a Niles Stage Front 15" subwoofer. The amp failed after three years. Niles discontinued this model and would not repair the failed unit. I contemplated replacing the entire subwoofer but this was cost prohibited at the time. I did not realize I could replace the amp until I found this Plate amp from Dayton Audio. It matched the power of the original amp and fit the original enclosure with some very slight modifications. I like the EQ adjustments on the amp and still need to tweak these a bit to reduce the boom but overall this is a great amp at a great value. Thanks Parts Express
Date published: 2014-02-27
Rated 5 out of 5 by from Great ampI used this amp in a 4cf sealed DIY subwoofer enclosure with the Dayton Audio 18" Reference drive and I could not be any happier. This amp has plenty of power. The parametric EQ makes it easy to blend with my front mains or if I just want to have ridiculous thumping bass.
Date published: 2014-02-04
Rated 5 out of 5 by from Great amp, massive power and no dirty bass.I used this amp for a custom subwoofer build and I am very happy. This amp has tons of (potential) power. It can be tuned to blend and harmonize with your other speakers, or you can really punch it and get the earth shaking bass for movies or music. This is a great amp and I am very happy with this product.* Project note:Yes, these are car audio drivers. I specifically chose them for their power handling and performance;•12" subwoofer with dual 4-ohm voice coils•polypropylene woofer cone with large-roll rubber surround•progressive spider design for excellent cone control•frequency response: 23-400 Hz•power range: 100-300 watts RMS (1,200 watts peak power)•sensitivity: 93 dB•top-mount depth: 6-3/8"•sealed box volume: 1.25 cu. ft.I also selected this driver because its cost is signifigantly lower than comparable theatre style subs with similar specs (plus they look much better than regular flat black paper cones on theatre style subs)I have these wired to 4ohms, and they have great response in the sealed box.*** I would love to post this in the "Gallery" but that page says "Coming Soon" when you try to add your own project.
Date published: 2014-01-27

Product Q&A

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Dayton Audio SPA1000 1000W Subwoofer Plate Amplifier

it works with 3Ohm JBL W12GTI Sub? ( Thanks

Asked by: QuinT
We do not recommend using this on any load that is less than 4 ohms.
Answered by: MattP
Date published: 2014-11-26

I have this amp on a power switch to save standby energy. I have 2 issues: 1) Turn-on/turn-off thump, can this be minimized? 2) During movies or music it goes into standby when LFE is low for a few minutes. Then it comes on with a noticeable thump. ??

Asked by: one51
Please contact our tech support for more help with this question, or 800-338-0531 x1.
Answered by: MattP
Date published: 2014-11-20

Hi I have  an 18 inch sub - woofer that is not active and I would like very much to make it active it can handle 900 watts easy I was wondering what plate would you suggest to make it active for my hometheater. Thanks

Asked by: Tyheem
Please contact our tech support for more help with this question, or 800-338-0531 x1.
Answered by: MattP
Date published: 2014-11-07

hello, I has two subwoofer 600w rms Boschman 2x 4 ohms homs Could you tell me if your daytona audio SPA1000 will work with these two subwoofer because I do not know if your amp is 1000Wrms 4 homs I'd like to make a band pass box . Thank you in advanc

Asked by: sauvignon
Please contact our tech support for more help with this question, or 800-338-0531 x1.
Answered by: MattP
Date published: 2014-11-05

what shipped weight has this Dayton Audio SPA1000 1000W Subwoofer Plate Amplifier?

Asked by: denmak55
The shipping weight is 22.65 pounds
Answered by: Chrisf
Date published: 2014-10-03

Upon purchase of the Dation spa 1000, I noticed "not for pro sound use" such as DJing and pro sound use & a 30%duty rating. Is this because of a small heat sink? Would increasing size of heat sink area increase the duty cycle and offer more of pro use? 

Asked by: spoodoc
Home audio subamps in general are not rated for a high power, continuous audio output as they will rapidly overheat. They are for the low frequency sound effects in movie soundtracks, which come and go. You can get move continuous power output by putting a fan on the heatsink, but I would suggest monitoring the amp until you have a feel for what it can take before getting scary hot. For DJs and bands, an amplifier intended for the application would be a better choice.
Answered by: Eric Chandler
Date published: 2014-10-03

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