Dayton Audio SPA1000 1000W Subwoofer Plate Amplifier

Brand:| Model: SPA1000
Recently updated design! 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.
  • 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.  
List Price$499.99
You Save32%
Your Price
Part # 300-809
Qty:  EA
Available Payment Methods

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
    (13 Reviews)
  • Weight22.65 lbs.
  • Case Qty2
  • California Prop 65

    Warning: California residents only. Please note per Proposition 65 that this product contains 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 4.6154 out of 5 by 13.
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
Rated 5 out of 5 by from Works GreatI did have major hum at first, but once I isolated the ground the hum is one hundred percent gone. Incredible true power!
Date published: 2013-08-04

Product Q&A

Get your questions answered from other customers
who own this product or have experience with it.
If your question requires design or troubleshooting information,
please email tech@parts-expresss.com  for a prompt reply.
Dayton Audio SPA1000 1000W Subwoofer Plate Amplifier

Stand by mode How long does it usually take to switch to stand-by mode ?  I left it on for 3 hours the led still showing green.  I tried it with and without the lfe connected.  Should I send it in for service ?  Thanks

Asked by: Thuctrangviai
Typical times are 10-15 minutes for these amplifiers. Please contact our tech support for more help with this question, tech@parts-express.com or 800-338-0531 x1.
Answered by: MattP
Date published: 2014-08-18

Infinite-baffle subwoofer system using two Dayton Audio IB385-8 wired for 4 ohms. 500-watt amp, or this 1kW unit for extra headroom? Would I be wasting the cost difference, or would there be a significant benefit? I'm not trying to shake the house down.

Asked by: tomb
I'm a huge supporter of subwoofer headroom, but the 500 watt amp will still be able to drive a pair of these subwoofers to their mechanical limits pretty easily. I would not personally be able to justify spending the extra for the 1000 watt model.
Answered by: MattP
Date published: 2014-08-01

What are the dimensions of this amp?

Asked by: MDavidH
Dimensions: 11-15/16" W x 11-15/16" H x 5-1/4" D; Cutout dimensions: 10" W x 10" H.
Answered by: MattP
Date published: 2014-07-29

I had an Mission e8as2 but my internal AMP was burn, may I know which amp is better to match?

Asked by: andyma
It looks like the original amp was 500 watts, so the SPA500 would be a better choice assuming the speaker load is 4 ohms.
Answered by: MattP
Date published: 2014-07-11

what is the rms power rating of this amplifier?

Asked by: adam9716
This amplifier produces 950 watts RMS into a 4 ohm load.
Answered by: MattP
Date published: 2014-07-11

I was wondering if this amp would work with the polk sr 104 10" 4 ohm dvc subs 700watss rms?

Asked by: adam9716
If you are only powering one sub you will have to wire the coils in series for an 8 ohm load. This amp will work although it will only produce ~500 watts into an 8 ohm load. If you are powering a pair of woofers you can wire them in series/parallel in order to get the full output from the amplifier.
Answered by: MattP
Date published: 2014-07-11

Customer Projects

Customer projects that include: Dayton Audio SPA1000 1000W Subwoofer Plate Amplifier

If you built a project using this product, post it in the Parts Express Project Gallery.

Customer Discussions

If you would like to start a discussion about this product, post a thread in the TechTalk Customer Forum.
Get Deals
emailed to you every week.

Be the first to hear about new and exciting products,special pricing and incredible deals!

See This Week's "GET DEALS" Email
Parts Express
725 Pleasant Valley Dr.Springboro,OH45066USA

© 1996-2014 Parts Express, All Rights Reserved