Manuals & Resources

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.
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Regular Price$365.80
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List Price:$19.99
Part # 300-809
  • 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

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
    (17 Reviews)
  • Weight22.65 lbs.
  • 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 4.5882 out of 5 by 17.
Rated 4 out of 5 by from Fantastic Performer!I purchased this amp to install in my new sub kit from PE. The plate amp fit nicely in the back of my PE 18" Ultimax sub kit. The adjustability is adequate and easy to use. The amp is driving the 18" UM driver without a hint of an issue. To be fair I haven't cranked up the sub yet as it's new still. I fear what this amp can do.My only complaint, and why it got a 4 is the short leads. At ~20" in length they were barley able to reach the connections on the DVC driver. It would be nice to have a little longer leads, especially since this amp is promoted specifically for use with the 18" UM kit from PE. I know I can add wire easily but still.......Overall I'm very pleased with this amp and would highly recommend this to anyone looking for lots of power.
Date published: 2015-03-23
Rated 5 out of 5 by from Bass complexAfter my Yung plate amp died while not being used (powered up, and off, on its own) , days after the warrantee expired,I found out PE will fix their house brands even past their warrantee.Tried out this one, for a pro audio 18", 1200 watt driver in a sloped H frame, previously Yung powered.The SPA 1000 is superior in every way.No strain, effortless, pitch perfect bass lines.The variable parametric eq is far superior to a fixed 6 db boost, and the gain control has far better low level adjustability than the previous amp.This isn't a thumper, unless that's what's called for. This amp plays music.
Date published: 2014-12-18
Rated 4 out of 5 by from A lot of powerIt has a lot of power, but there are two things that really bugging me, when I turned it on, it sent a surge of power to the driver, making that thumping noise, that very bad for the driver, and the standby mode led glowing green, I thought the amp was on all the time, when it turned on led glowing yellow, should it be the other way around ?
Date published: 2014-11-27
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
  • 2015-08-30T07:07CST
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Product Q&A

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Dayton Audio SPA1000 1000W Subwoofer Plate Amplifier

So if this is 1000W @ 4Ohms, @ 1/3rd duty cycle does that mean its really only 333.3 Watts RMS , with a peak of 1000W? 

Asked by: RogerC

I have an old (1981)Pioneer SX 3700 receiver. Would like to run 4 non powered in wall home subs. Do you have something that would work?

Asked by: Q5charger
Please contact our tech support for more help with this question, or 800-338-0531 x1.
Answered by: MattP
Date published: 2015-07-27

What would the output of this amplifier be at 6ohms? Thinking about getting 2 JBL GTI series 12's and wiring them in series/ parallel to a 6ohm load and building my own enclosure to match the rest of my JBL Home audio.

Asked by: Tcwillis9
The output at 6 ohms will be around 700-750 watts RMS.
Answered by: MattP
Date published: 2015-08-13

What is the depth dimension of Dayton Audio SPA1000 into the enclosure? Can you provide a drawing? I have 3.5" depth clearance inside my existing B & W ASW750's & would like to use these to replace the failed B & W amp plates.

Asked by: Jim Clapp
Dimensions: 11-15/16" W x 11-15/16" H x 5-1/4" D; Cutout dimensions: 10" W x 10" H.The manual can be found on the product page at #300-809
Answered by: TomI
Date published: 2015-04-20

Need to replace a Keiga 52100A Class D 1000 watt plate amp on my sub - has the same 12" x 12" dimensions as the Dayton amp. My sub has a 15" Tumult driver with two 18" passive radiators. Do you think the SPA1000 will be a good replacement - thanks

Asked by: Scowes
Please contact our tech support for more help with this question, or 800-338-0531 x1.
Answered by: MattP
Date published: 2015-04-14

Need a 4m  power cable to reach my power conditioner.   Any issue with this length with this amp?

Asked by: kerryd
As long as the cord is at least 18 awg but preferably 16 gauge or larger you will be ok. This amp can draw up to 8 amps and an 18 gauge power cord is rated at 10 amps max.
Answered by: TomI
Date published: 2015-03-23
  • 2015-08-30T08:15CST
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