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BOSS Audio Systems PF1800 4 Channel Car Amplifier - 1800 Watts, Full Range, Class A-B, 2-4 Ohm Stable, Mosfet Power Supply, Bridgeable

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Availability: In Stock.
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Arrives Monday, Jul 20
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Style: 1800 Watt 4 Channel


Features

  • Power - 450 Watts Max x 4 @2-Ohms, 225 Watts Max x 4 @4-Ohms, 900 Watts Max x 2 Bridged @4 Ohms
  • Class A/B Topology - Class A amplifiers have enormous amount of current flowing through its output transistors with no audio signal. Class B amplifiers have no current flowing through its outputs with no audio signal
  • Full Range - With a Full Range amplifier you not only have the option to run your speakers, but also your subwoofers
  • Mosfet Power Supply - A MOSFET is basically an electrical switch that allows the flow of electrical current. It controls the output voltage & current precisely by removing the output current sensing loss & eliminating all secondary feedback circuitry
  • Variable Gain Control - The gain control is not for adjusting volume. It simply adjusts the amount of signal that is coming from your receiver and going to your amplifier
  • Variable BASS Boost - With Variable Bass Boost you have the control of exactly how much BASS you want to pump out to your subwoofer(s)
  • Bridgeable - Dramatically increase the power output to you speakers and subwoofers by connecting two amplifier channels
  • Specs - Dimensions: 13.5 x 10.31 x 2.25, Weight: 12 lbs.

Description

Shift your music into gear with the Boss Audio Phantom PF1800 4-Channel Class A/B Full Range Amplifier. This powerful 2-Ohm stable amplifier features 1800 Watts Max Power with a MOSFET power supply for better performance to get your vehicle rocking. Customize the sound with Low and High Pass Crossover, Bass Boost and Remote Subwoofer Control. Bridge channels for more power and flexibility. The Phantom Series are full-featured amplifiers that offer eye- catching Multi LED Backlit Illumination and customization for high quality sound and performance. Rock out with the Boss Audio PF1800. For more product details, please scroll down.

Item dimensions L x W x H: 13.5 x 10.31 x 2.25 inches


Manufacturer: BOSS Audio Systems


Mounting Type: Surface Mount


Brand: BOSS Audio Systems


Number of Channels: 4


Mounting Type: Surface Mount


Number of Channels: 4


Output Power: 1800 Watts


Package Type Name: amplifier


Maximum Output Power: 900 Watts


Item Dimensions: 13.5 x 10.31 x 2.25 inches


Material Type: Plastic and/or Metal


Specification Met: Mosfet Power Supply


Manufacturer: BOSS Audio Systems


Model: PF1800


Brand Name: BOSS Audio Systems


Global Trade Identification Number: 64


UPC: 809198916960 791489122764


Part Number: PF1800


Item Type Name: BOSS Audio Systems PF1800 4 Channel Car Amplifier - 1800 Watts, Full Range, Class A-B, 2-4 Ohm Stable, Mosfet Power Supply, Bridgeable


Item Weight: 10.1 Pounds


Included Components: BOSS amplifier


Unit Count: 1.0 Count


Frequently asked questions

If you place your order now, the estimated arrival date for this product is: Monday, Jul 20

Yes, absolutely! You may return this product for a full refund within 30 days of receiving it.

To initiate a return, please visit our Returns Center.

View our full returns policy here.

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Leasing options through Acima may also be available during checkout.

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Top Amazon Reviews


  • Outstanding !
Style: 1800 Watt 4 Channel
In my honest opinion, Boss Audio products are excellent and I have NEVER had an issue with ANY Boss Audio component that I've purchased. If you're looking to upgrade a factory stereo or if you're wanting to disturb your neighbors (lol) then Boss can do it, and at a price that's very reasonable. I have just installed a new system in my Silverado. It starts with the Boss Head Unit- 508UAB , then the Boss 7 band Equalizer -AVA1210. The Boss PF1800 Amp powers my Boss NX654 door speakers and my Boss P69.4C rear speakers. I have the Boss PT1000 Amp driving my 2 Boss SLR8 Dual voice coil subs. This system sounds PHENOMENAL in my truck !!! It's crystal clear at ANY volume and it puts me in the " Front Row of the concert " so to speak ! My advise is this : Regardless of what Boss System you might purchase, always use the thickest gauge wire possible for the entire system, make sure you have a VERY GOOD GROUND and follow the wiring diagrams provided with your components. I have ZERO engine noise and a system that is nothing short of AWESOME ! I highly recommend any and all Boss Audio products to everyone. From a basic system to a competition system you're going to love it and it won't cost you a fortune ! ... show more
Reviewed in the United States on May 10, 2017 by mike anspach

  • BOSS best of the best
Style: 1800 Watt 4 Channel
This amplifier alone drives four 350-watt Orion 6x9s and four 300-watt Alphasoniks simultaneously; the sound is better than I expected—pure Puerto Rican-style loud, clear audio. After several months—and drives lasting over an hour—it hasn't gone into protection mode or suffered any drop in sound quality. A video is coming next. BOSS definitely didn't let me down. Of course, it’s properly installed with everything it needs. ... show more
Reviewed in the United States on June 13, 2026 by Edwin Delgado

  • Good amp
Style: 1800 Watt 4 Channel
So far so good. Ordered the 5 ch 3700w version as well to power 2 8in and 2 12in Polk db+ subs . Well see what it sounds like when everything is installed.
Reviewed in the United States on December 22, 2025 by Amazon Customer

  • Good value
Style: 1800 Watt 4 Channel
Works great
Reviewed in the United States on April 13, 2026 by Rick

  • Harleyboi
Style: 1800 Watt 4 Channel
Good product
Reviewed in the United States on December 31, 2024 by Cecil T. Chapman

  • good
Style: 1800 Watt 4 Channel
this amp does what its supposed to do. worth the money
Reviewed in the United States on July 23, 2025 by Michael Robert Jensen

  • Defective product
Style: 1800 Watt 4 Channel
I wanted to really like this. And I wanted to run 4 speakers in my Ram 1500! But after my install, with channel 1, the front speaker was filled with static. I swapped speaker terminals and still had static in a front speaker. I tried other speakers and got the same results with channel 1. So I’m Returning this amp. I picked up a kicker amp and I have no issues with the amp so far. All 4 speakers sound perfect with plenty of punch behind them! ... show more
Reviewed in the United States on July 21, 2019 by John

  • Works great and sounds ds great for the money.
Style: 1800 Watt 4 Channel
Easy to install and sounds great. Better then the one I had. Once installed it did not get hot or over heat.
Reviewed in the United States on April 20, 2022 by Herb

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