Search  for anything...

Planet Audio MB300.4D 4 Channel Class D Car Amplifier - 1200 Watts, 2 Ohm Stable, Digital, Full Range, Mosfet Power Supply, Great for Speakers and Subwoofers

  • Based on 300 reviews
Condition: New
Checking for product changes
$164.01 Why this price?

Buy Now, Pay Later


As low as $27.34 / mo
  • – 6-month term
  • – No impact on credit
  • – Instant approval decision
  • – Secure and straightforward checkout

Ready to go? Add this product to your cart and select a plan during checkout. Payment plans are offered through our trusted finance partners Klarna, PayTomorrow, Affirm, Apple Pay, and PayPal. No-credit-needed leasing options through Acima may also be available at checkout.

Learn more about financing & leasing here.

Selected Option

Free shipping on this product

This item is eligible for return within 30 days of receipt

To qualify for a full refund, items must be returned in their original, unused condition. If an item is returned in a used, damaged, or materially different state, you may be granted a partial refund.

To initiate a return, please visit our Returns Center.

View our full returns policy here.


Availability: Only 2 left in stock, order soon!
Fulfilled by Tucky's Automotive

Arrives May 24 – May 25
Order within 16 hours and 49 minutes
Available payment plans shown during checkout

Style: 1200W 4 Channel


Features

  • Power - 300 Watts Max x 4 @2-Ohms 150 Watts Max x 4 @4-Ohms 600 Watts Max Bridged x 2 @4-Ohm
  • Class D - Power loss is significantly reduced making the amplifier highly efficient Excess energy is stored until its needed instead of being converted into heat Reduction in size/weight reduced power waste smaller heat sink compact circuitry
  • Bridgeable - Dramatically increase the power output to you speakers and subwoofers by connecting two amplifier channels
  • Mosfet Power Supply - A MOSFET is 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 Bass Boost - Bass Boost allows you to adjust the low bass within the boost range to just the way you like it
  • Variable High-Pass Crossover - Speakers reproduce sound based on high low or mid-range frequencies A variable high pass crossover gears specifically towards highs such as all size speakers including mid ranges and tweeters
  • Variable Low Pass Crossover - Subwoofers reproduce sound based on a number of different low-range frequencies You can set exact sound specifications for the bass frequency reproduction
  • Specs - Dimensions 9 5 x 5 12 x 1 7 Weight 3 6 lbs

Description

Planet Audio MB300 4D 4 Channel Class D Car Amplifier - 1200 Watts 2 Ohm Stable Digital Full Range Mosfet Power Supply Great for Speakers and Subwoofers

Item Dimensions LxWxH: 9.5 x 5.12 x 1.7 inches


Manufacturer: Planet Audio


Brand: Planet Audio


Number of Channels: 4


Product Dimensions: 9.5 x 5.12 x 1.7 inches


Item Weight: 3.9 pounds


Item model number: MB300.4D


Connectivity technologies: RCA


Special features: Class D, 4 Channel


Other display features: Wireless


Whats in the box: Remote subwoofer control, Users manual


Manufacturer: Planet Audio


Date First Available: March 11, 2020


Frequently asked questions

If you place your order now, the estimated arrival date for this product is: May 24 – May 25

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.

  • Klarna Financing
  • Affirm Pay in 4
  • Affirm Financing
  • PayTomorrow Financing
  • Apple Pay Later
Leasing options through Acima may also be available during checkout.

Learn more about financing & leasing here.

Top Amazon Reviews


  • Excellent value
Style: 600W 2 Channel
I bought this to power an aftermarket subwoofer with dual voice coils in my car. It has a lot of features, puts out a ton of power, and sounds good in the bass region at least. it does get a little warm when running for more than 30 minutes, but so far no problems. i would buy it again.
Reviewed in the United States on December 16, 2020 by CA_Dan

  • Works Good
Style: 2200W 5 Channel
I bought the 2200W, 5 channel amp. Iv read the reviews regarding false power claims. I know MOSFET power switching is way more efficient then old bulky amplifiers (less power being wasted as heat), so I decided to give it a try. I don’t have any verifying power readings, but I have the amp powering 4 upgraded door speakers (rated around 300W each) using the first four amplifier channels, and it sounds great. Loud, clean sound. So in theory, I should be able to power a sub on channel 5 with no problems based on the power rating of the amp, but Iv yet to get that far. I have a secondary amp in case this one can’t handle it. I also like that all the connectors simply plug into the amp. Iv had to remove and reinstall the amp a couple times during initial install and wiring, so the plug and play was very handy. Conclusion, amp works great for door speakers at very least and doesn’t get very hot. ... show more
Reviewed in the United States on March 12, 2022 by Kevin Henderson

  • Just dont do it
Style: 1200W Monoblock
This is 1000% misleading. There is NO WAY that this will go to 1200W max. #1 the power connections are WAY TOO SMALL. They will not even accept a 4 gauge wire to power it up #2 the speaker out are WAY too small to run any real sub efficiently If If this amp even had the ability to get to 500W, the speaker wires would be melting as they are 18 or 16 gauge Way too small to deliver enough power to a real Sub The fact that this has 2 20watt fuses on it says that this can not get past 400W as those fuses would blow. On the bench this thing was only able to get 372W @1 ohm (Un-Certified.) not the 1200W that is advertised as a max If you are looking for real power, and really want your car to thump, this is not it. This is a fire trap waiting to happen. Small wires=small sound. Just stay away from this thing. ... show more
Reviewed in the United States on June 17, 2020 by D. Pace

  • Just enough for inside the vehicle
Style: 2200W 5 Channel
I wanted a class d amp. Because I didn't want to text my electrical system too much. The planet audio amplifier met my requirements. It's not going to blast the whole neighborhood but inside the car it's not bad. Not as dynamic as a class baby but I was looking to not over text my electrical system
Reviewed in the United States on May 17, 2023 by 😄clone

  • Grate amp, surprisingly powerful for its size.
Style: 2200W 5 Channel
This particular amp is a shocker. The quality is so surprising good that I couldn't wrap my head around how much sound came from this unit. It's size is what caught me off guard. When I opened the box I said hellnothis is a joke. The joke was on me. This amp is the real deal, and all the stuff that come with the amp, oh by the way be careful I almost return the amp because I didn't realize that bass knob was in the Styrofoam. Any way grate amp for the price definitivamente worth it. Will recommend 👌 ... show more
Reviewed in the United States on April 4, 2021 by Amazon Customer

  • A deal at twice the price. I read the other reviews and I have no idea what they are talking about.
Style: 1200W Monoblock
I bough this amp for my wife and her dual 12" MTX Thunder speaker she has. They are 2 ohm. It sounded pretty good( I mean those aren't very high quality bass dropping speakers). I have my own stereo system. I have 2 12" Fosgate P3's in a slotted box. I was running a Pioneer champion series 9601D 2400 watts @ 1 ohm. I fried it, twice actually in just a few years. So I borrowed my wife's amp. I was absolutely floored. This little mini bang clowns.. It doesn't claim to put out 1200 at 1 ohm it says 900 @ 1 ohm. I will have to upload a video of how hard it makes my 12's flex. I would go out and do it right now, but I am at work and it would cause to much a scene. Seriously I have read the other reviews and I think the other people are having issues because they have 2 ohms speakers and then the amp only puts out 450 watts. I did an 8 hour road trip with the music cranked and it never got remotely hot. I'm so freaking impressed with this Planet Audio Amp I think I am going to buy a bigger one! ... show more
Reviewed in the United States on December 2, 2020 by the pilgrim chapter 33

  • Buy something else with your money.
Style: 1200W Monoblock
No way this is 1200 watts. At 1 ohm it sounds like it's pushing 500-800 watts.
Reviewed in the United States on April 22, 2021 by joe berryhill

  • Powerful little amp
Style: 1200W Monoblock
Great budget amp…1 ohm or 2 ohm stable surprisingly powerful
Reviewed in the United States on April 18, 2022 by R.Suazo

Can't find a product?

Find it on Amazon first, then paste the link below.