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The Best Plate Amp

What is the best Plate Amp to choose from in 2021?

Looking for a new Plate Amp but don’t know how to choose the best one that suits your needs? In this article, we will introduce some of the best Plate Amps available on the market.

For some who do not know about Plate Amp yet, it is a type of power amplifier usually put inside an audio speaker. It is built on a plate face or a flat surface with many components on it. It is mostly used for subwoofers to amplify their power using line signals. The reason is that Plate Amp has a lower frequency response compared to other kinds of amplifiers, at around 200 hertz only, and it will be more beneficial to use on subwoofers rather than other types of speakers. To drive such a kind of speaker, Plate Amp usually has a high power specification, from 80 to 500 watts. The power level and the types of components, output, or input on the Plate Amp’s board are commonly the differences among various products that you can find on the market. Therefore, to give you some insights on this and help you decide which one to choose more easily, we will go through 4 of the best items today.

The Best Plate Amp of October 2021 – Reviews and Top Rated

Rank No. #1
2 Pack Round Metal Speaker Jack Plates for Amplifier Cabinets 1/4 inch Black Finish 2 inch Diameter
  • 2 Pack jackplates for speaker cabs
  • 2" outside diameter
  • For 1/4" US spec or 6.3mm Metric jacks
  • Requires a 1-1/16" to 1-1/4" mounting hole
  • black finish - sturdy metal
Rank No. #2
Sound Town Class-D Plate Amplifier for PA DJ Subwoofer Cabinets, w/Speaker Outputs, LPF (STPA21-710)
  • 500W RMS plate power amplifier
  • Two speaker outputs with 125W RMS output each channel
  • 2 XLR-1/4” combo inputs, 2 XLR (through) outputs
  • Over current and short circuit protection
  • Sturdy and reliable
Rank No. #3
AOSHIKE 8-25V 100W TPA3116 Subwoofer Digital Power Amplifier Board TPA3116D2 Amplifiers NE5532 subwoofer Plate Amplifier
  • Power Range: 8-25V;Power connector is a standard 5.5MM power jack,you can use your laptop power, Other input is Aux input,it is 3.5mm port
  • Maximum output power: 50W (left channel) + 50W (Right channel), dual- channel output, efficiency up to 90 percent
  • Adopt Tpa3116 high-performance amplifier chip as the core, DC single power supply, wide operating Voltage range 8-25V.
  • PCB size: 75X60MM (Any problem with it,pls contact us:https://www.amazon.com/sp?seller=A3BG62S1F23IH5)
Rank No. #4
iBOLT 4 Hole AMPS Pattern Metal Backing Plate with Screws- Great for All AMPS Pattern Drill Base mounts
  • The iBOLT 4 Hole AMPS Backer plate provides a more solid surface when installing a heavy-duty mount to a soft or porous surface
  • METAL- backer plate features pre-drilled holes in a 4-Hole AMPS pattern. The backer plate is 2.6 inches by 2.6 inches in a square shape.
  • COMPATIBLE- with All AMPs plate drill base patterns
  • INCLUDES- Screws and washers
Rank No. #5
iBOLT AMPS Adapter Plate
  • 17 mm ball joint - fits all iBOLT car-docks
  • 32x38 mm industry standard hole pattern (=AMPS)
  • Use as alternative to suction mount
  • Perfect for KUDA, Arkon, Garmin or any Pedestal type Mount
  • Double sided tape included and 4 screws
Rank No. #6
Seismic Audio - SA-APP008-120 Watt Class AB Plate Amplifier for Full Range Loudspeaker Cabinets - Class AB Replacement Amplifier
  • Model: SA-APP008
  • Contents: 60 Watt Plate Amplifier for Loudspeakers
  • Amplifier Type: Class AB
  • Power Rating: LF: 60 Watts RMS; 120 Watts Peak
  • Controls: Treble, Bass, & Master Volume
Rank No. #7
Buybits Ultimate Addons Adaptor Plate Amps 4 Hole Layout to 1" Ball
  • Ultimate Addons Adaptor Plate Amps 4 Hole Layout to 1" Ball Compatible with many motorcycle mount manufactures including RAM & SW-Motech that use the 1" ball system.
  • The standard 4 hole amps layout can be used directly with the TomTom Rider 2, Rider Pro, Urban Rider and the Garmin Zumo 220, 400, 500, 550 & 660. (Not suitable for the TomTom Rider 1).
  • Allows your Motorcycle GPS SatNav to to attached directly to bike mounting options using the 1" ball such as the RAM fork stem mount RAM-B-342 & the handlebar base RAM-B-231Z without having to use an arm.
  • Adaptor plate only - NOT a complete mount
Rank No. #8
Lepai LP210PA 2x30W + 60W 2.1 Channel Mini Plate Amplifier TPA3118
  • Compact size (4.5" x 5" x 1") for installation into the smallest subwoofer enclosures
  • Satellite outout includes 6 dB per octave high pass at 100 Hz
  • Perfect for use in office, bedroom, or even portable speaker systems
  • Defeatable full range output for use as just a subwoofer amplifier
  • The full range speaker output uses high quality binding posts for easy connection
Rank No. #9
Dayton Audio SPA250DSP 250W Subwoofer Plate Amplifier with DSP
  • DSP functions include: 7 PEQ bands, LPF, phase, subsonic filter, limiter, mains delay, and HPF
  • Single-knob control panel with high-contrast LCD display and status LEDs
  • Fast, intuitive PC-based GUI software enables full access to the DSP functions
  • Efficient Class D output topology ensures high-impact low frequency performance
  • Includes both balanced and unbalance line level inputs and outputs
Rank No. #10
Round Metal Speaker Jack Plate For Amplifier Cabinets 1/4 inch Black Finish 2 inch Diameter
  • Jackplate for speaker cabs - Retail Packaged
  • 2" outside diameter
  • For 1/4" US spec or 6.3mm Metric jacks
  • Requires a 1-1/16" to 1-1/4" mounting hole
  • black finish - sturdy metal

Last update on 2021-07-28 / Affiliate links / Images from Amazon Product Advertising API

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Dayton Audio SPA250 250 Watt Subwoofer Plate Amplifier

The first Plate Amp that we will introduce today is the SPA250 250W Plate Amplifier from Dayton Audio. It is the most powerful Plate Amp from this manufacturer. It has a changeable 6dB, 35Hz bass buff. There are two power outputs: with 8 ohms at 0.1% THD, the power rating is 156W, 252W with 4 ohms at lower than 1% THD. The output is made strong and clear with the mono-class AB output stage. There are three inputs: low level, high level, and LFE so that the product can be compatible with any connection. This Plate Amp can also support any automatic sound system with the auto power switch on/off modes. The product may look a little big in the picture. Still, it can be optimized for space easily with variable gain, traverse spots, and changeable phase controls, so don’t worry about adjusting the components much when installing this amplifier. The audio performance is designed to suit the home theatre system best. Therefore, if you have a home theatre or are just into building audio speakers, this is a perfect choice.

Pros:

  • A powerful amplifier that suits home theatre subwoofer
  • Easy to install and use

Cons:

  • None

Dayton Audio SA100 100W Subwoofer Plate Amplifier

If you are not into the 250W Plate Amp, or don’t need that much power, consider the SA100 100W Plate Amplifier from Dayton Audio. This product can offer you 75W of power when using 8 ohms, or 100W with just 4 ohms. It can provide a low distortion sound when operating and, according to Dayton, “audiophile” as well. It somewhat says that the manufacturer has high confidence in the audio quality that this amplifier will put out, which will satisfy any music lovers. Like the 250W model, the SA100 also possesses high and low-level inputs and outputs and an auto power switch to adapt with any automatic system. With this amplifier, you can recover a subwoofer with a dead amp (which will cost a lot less compared to having to buy a whole new one) and turn a passive subwoofer into an active one. This product works best with speakers with 4 ohms or 8 ohms, so keep this in mind before purchasing.

Pros:

  • Can offer the best experience for music lovers with high quality and low distortion sound
  • Many types of inputs and outputs with auto powering feature to fit any audio systems

Cons:

  • None

Dayton Audio 70W Plate Amp

Another option from Dayton Audio, if the two above did not suit your demands, is the SA70 70W Plate Amplifier. The product can perform between 40Hz and 180Hz, thanks to the low-pass crossover. The Plate Amp is built with line level and speaker level inputs to be compatible with any audio structure. There is also auto power on the circuit so that whenever you need this amplifier, it will be powered on. It will enhance your subwoofer’s audio quality by a lot, which will be suitable for the home theatre experience. The product can also be used as a replacement for failed amplifiers. Some users described this process as “give the speakers a second life,” which is quite interesting to hear. Some customers also report that this amplifier heats a lot when operating. Don’t worry, as this is normal, and all speaker amplifiers give off heat, as there is an electric current running through this part of the speakers. However, if it gets too hot, you should consider moving your speaker to somewhere cooler since the environment could also affect the amplifier’s temperature.

Pros:

  • Compatible with many audio systems
  • Auto-on circuit for convenient use

Cons:

  • None

Seismic Audio – SA-APSM01 Plate Amplifier

The final product for today is the SA-APSM01 Plate Amplifier from Seismic Audio. It is a class AB speaker amplifier made for professional audio systems and DJ. It has the highest power rating of all the Plate Amp that we are introducing today: 250W to 500W for LF and 75W to 150W for HF with the Bi-Amp structure. This Plate Amp will enable its users to control the treble and bass volume with a two-band equalizer. The line inputs include XLR, ¼ Combo Jack, and TRS. There is also a Mic/line switch to serve the music producers better. With such a powerful amp, the manufacturer carefully equipped it with a safe use system, including a DC fan for heat-dissipating, anti overload, and overcurrent system, anti-short circuit system. The sound it creates will be loud and clean. So if you want to pass all the household speaker amplifiers and look for a product made for professionals, this will be the right choice. There is also a one-year warranty from Seismic Audio when purchasing this product.

Pros:

  • Made for professional uses: high-quality sound, various inputs with Mic/line switch
  • Safe for use with anti risks built-in
  • Powerful ratings

Cons:

  • None

That is all of our introduction on Plate Amp for today. We hope that you can find the best one that suits your demands after this article, as this is an economical choice for your speakers with a failure amp. Thank you for reading!

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Fabian Walker

Data Scientist, Lab Researcher, Founder of RelinkLabs.com