Best 1 Ohm Stable Amplifiers (2022 Reviews & FAQs)

1-ohm stable amp is an amplifier that can be used to power the subwoofer. They are designed for high-power, high-current applications and they can handle up to 1 ohms of impedance. These amps are usually used with car audio systems because they provide a powerful bass sound.

You can get a 2-channel amp or a 4-channel amp for your front and rear speakers. But what if you want to power all four speakers in your vehicle? A 1-ohm stable amp is perfect for this job.

Well, here we provide you with our list of top 9 best 1-ohm stable amps. This list is based on various factors including power rating, distortion level, bass response, channel count, price range, etc.

Quick List:

  1. Kicker 46CXA8001
  2. Skar Audio SKv2-1500.1D
  3. Planet Audio AC4000.1D
  4. BOSS Audio Systems AR3000D
  5. Rockford Fosgate Punch P1000X1BD
  6. Skar Audio RP-2000.1D
  7. Rockford Fosgate R2-750X1
  8. Sound Storm EV4000D Evolution
  9. Taramps Bass 3K

Best 1 Ohm Stable Amp Reviews

1. Kicker 46CXA8001 Car Audio Class D Amp

The 46CXA8001 is a high-quality amplifier that delivers excellent sound quality for your car. It’s a Class D amp with a 24dB subsonic filter, which removes unwanted frequencies and protects the amplifier from damage. It’s a very efficient amplifier, so it won’t drain the battery in your car too quickly, and it’ll even help reduce the noise pollution from your car.

Variable crossovers allow you to dial in the perfect sound for your car, and they offer 6dB of boost for the bass. This means you can get the best out of your speakers and enjoy the extra low frequencies, without them being distorted.

They also have a KickEQ function that will automatically boost the bass in certain situations. So if you’re listening to your favorite songs at a louder volume, or you’re driving on a highway, KickEQ will automatically boost the bass so that you don’t hear any distortion.

The 46CXA8001 from Kicker is the best 1-ohm stable amplifier for your car audio system. You’ll definitely be impressed with the sound quality it delivers, and it’s going to help you enjoy your car audio experience even more.

2. Skar Audio SKv2-1500.1D Class D Monoblock Amplifier

There are some good things about this amplifier. First, it’s stable at 1 Ohm, which means you won’t have any problems running the amplifier into a load like a subwoofer or other amplifier. Second, it’s very well built. The heatsink is heavy duty and made from high-quality materials that will last for years on your vehicle. It also features a heavy duty connector that won’t break easily.

It has 4-way protection circuitry to prevent any damage to the amplifier if there’s a short or over-current. The input terminals are 1/0 gauge, which is perfect for use with any source.

So if you’re looking for an amplifier that will bring you all kinds of audio performance, then buy the Skar Audio SKv2-1500.1D Class D Monoblock.

3. Planet Audio AC4000.1D Class D 1-fac4Ohm Stable Amp

This is a cheap amplifier that can provide you with the best sound quality at the lowest cost. It’s designed to deliver more power and output than the competition.

This amplifier is based on the class D technology, which offers high efficiency, high power density, and low distortion. Class D amplifiers are very efficient, with 80%+ power efficiency.

It has a variable bass boost, which can deliver more or less bass depending on the situation. This will give you better performance at low speeds and less at higher ones. 

It features a variable low-pass crossover, which can provide you with a wide range of frequencies. This will let you get the best sound possible for your music.

In addition, Planet Audio AC4000.1D comes with variable subsonic filter, which lets you control the level of the subsonic frequencies. This will help you get the best sound possible, especially for your bass frequencies.

4. BOSS Audio Systems AR3000D Class D Car Amplifier

The AR3000D is equipped with a high-quality, compact digital power amplifier that is capable of delivering 3000 watts into a single 1-ohm load. With the AR3000D you are able to enjoy high quality music without having to worry about wasting energy.

The variable low-pass crossover allows you to adjust the low-frequency limit of the amplifier and prevent your subwoofers from bottoming out. The adjustable crossover also allows you to increase or decrease the bass response of your entire system while keeping the mids and highs unchanged.

The variable subsonic filter is designed to prevent your subwoofers from bottoming out and will allow the driver to reach a maximum safe excursion. The variable subsonic filter also helps to prevent the driver from damaging itself by allowing the driver to move back and forth without being clipped at any point.

5. Rockford Fosgate Punch P1000X1BD Class-BD 1-Ohm Stable Amplifier

The Rockford Fosgate Punch P1000X1bd is an efficient, yet powerful mono amplifier for subwoofers only.

You’ll get 1,000 Watts into a 1-Ohm load, so it can deliver a lot of bass into your car’s subwoofer. While most amps are limited to 300 Watts x 1 @ 4-Ohm or 500 Watts x 1 @ 2-Ohm, the Rockford Fosgate Punch P1000X1bd is able to pump out more than twice that amount. That’s why it’s one of the best mono amplifiers for subwoofers.

You can listen to your favorite music through its RCA inputs, which can accept both Hi and Low level audio signals without the need of a signal converter. Its variable 12 dB/Oct Butterworth crossover and C.L.E.A.N. set-up ensure you get the best sound possible. The Punch P1000X1bd also comes with on-board Punch EQ with +18dB boost @ 45Hz.

6. Skar Audio RP-2000.1D Monoblock Class D MOSFET Amplifier

This is a good 1-Ohm stable amplifier that you can use to run an external subwoofer. The RP-2000.1D is a 4-way protected Class D MOSFET monoblock power amplifier, that can deliver 2,800 watts at 1 ohm.

It’s made by Skar Audio, a company that makes high-quality audio products. They claim that this product is designed to be stable at 1 ohm. They’ve also designed it so that it has a fairly good sound quality for the price.

The RP-2000.1D has 4-way protection circuitry, which protects against short circuits, overloads, overvoltages, and even high-impedance shorts.

The amplifier features a 1/0 AWG power & ground input terminals, which are rated at 25A, which is enough to handle most of your subwoofers. It has an internal heatsink, which helps with efficiency, and the power supply is isolated from the circuit board, which means it won’t damage it if there’s a short circuit.

It has a remote level control, which allows you to adjust the subwoofer level without having to get out of the car. You can use the remote to change the bass level, and you can also connect a microphone.

7. Rockford Fosgate R2-750X1 1 Ohm Stable Amplifier

The Rockford Fosgate R2-750X1 is one of the 1 Ohm stable amps we’ve tested. It’s got a great design, and is very versatile.

It’s a fully digital class-D amplifier that’s built with a 750-watt RMS power rating, so it’s capable of handling most speakers. It also has integrated punch EQ that lets you adjust the bass, mids, and highs, as well as an integrated speaker level control.

It’s built with C.L.E.A.N. (Carrier Level Equalization And Noise) circuitry, which helps to correct for acoustic deficiencies while delivering up to 3X the bass. This makes sure that your music sounds accurate and detailed, while delivering more power.

This amplifier is designed for subwoofers, so it has a variable infrasonic filter and remote level control that let you fine-tune the bass for the desired level for the music. The remote controls also include a low-pass filter for the remote control.

8. Sound Storm EV4000D Evolution 1 Ohm Stable Class D Monoblock Car Amplifier

The Sound Storm EV4000D uses a MOSFET power supply that allows it to deliver an impressive amount of power and run cooler than other amplifiers. It has a high-efficiency MOSFET that can deliver 4000 watts at 1 ohm, and 3000 watts RMS at 1 ohm. That means you can power a subwoofer without blowing your head off!

The EV4000D comes with a variable low pass crossover that allows you to control the low-pass frequency. This lets you decide what sounds you want to hear, and what sounds you don’t want to hear. For example, you may want to keep the bass frequencies low, or you may want to boost them up, but the EV4000D can do both.

The Sound Storm EV4000D also has a subsonic filter, which lets you hear more of the lower frequencies, and a remote control so you can adjust the output level from a distance. You can even strap the EV4000D to a roof rack to take it along with you when you travel.

9. Taramps Bass 3K 3000 Watts Rms Car Audio Amplifier

If you’re looking for an affordable amplifier that offers decent performance, this one from Taramps is a great choice.

The Bass 3K is a full-featured amplifier with all the bells and whistles that you’d expect from a good quality audio amp with a maximum power of 3000 watts at 14.4 volts DC 1 ohm, and 1920 watts at 2 ohms. This means it can handle a wide variety of music genres, and won’t fail to satisfy even the most demanding audiophile.

Taramps Bass 3K has a frequency response of 8Hz to 250Hz, so it can provide deep, rich bass for you. It also features a crossover high-pass filter of 8Hz, which will keep those low frequencies from interfering with the higher frequencies of your music.

It has a signal to noise ratio of greater than 95dB and a maximum input sensitivity of 220Mhz. This means that you won’t be having issues with low-frequency audio signals when you play your music through this amplifier.

How to Choose the Best 1 Ohm Stable Amp

Here are some factors that may help you decide what you need and how to buy the right 1 Ohm stable amp.


The first thing you’ll want to look at is how powerful a 1 Ohm stable car amp is. The higher the wattage, the more power it has. Many people who want to use their 1 Ohm stable car amp as a portable audio source will be looking for around 100 watts of power. This will allow them to play music or podcasts at a reasonable volume level without having to crank it up.

Frequency response

The most important part of the frequency response is how much bass you can get, and how well the low frequencies are handled.

A good frequency response will enable you to enjoy your music at low volumes without any distortion or buzz. A poor frequency response means that there is a lot of noise and distortion in the audio output.


The next thing to think about is what features the 1 Ohm stable car amp has. Some models come with a Bluetooth wireless connection, allowing you to stream audio from your phone or tablet directly to your 1 Ohm stable car amp. This will save you from having to plug in an auxiliary cord, which may be difficult to find in your vehicle or in some cases be too bulky to store in your vehicle.

Another feature you’ll want to look for is a USB port, so you can plug in your USB-powered phone or MP3 player and listen to music directly from your portable audio source. Some of these types of amps also have a built-in FM radio, so you can listen to your favorite podcasts while on the go.

Protection mechanisms

When choosing a 1 Ohm stable amplifier, it’s important to ensure that it has a thermal protection feature. The short circuit, overload and voltage protection safeguards will allow you to use the amplifier with peace of mind.


The next thing to think about is how portable a 1 Ohm stable car amp is. There are two primary types of portable amps – those that sit in your vehicle and those that attach to your vehicle’s dashboard. If you have a small vehicle that doesn’t have a lot of space for an amp, then you’ll want to look for one that attaches to the dashboard, since it can then be stored out of the way when you’re not using it.

On the other hand, if you have a larger vehicle with a lot of space, then you may want to look for an amp that sits in your vehicle. This will allow you to use it while you’re moving and will help keep your music at a reasonable volume level.


The last thing to think about when buying a 1 Ohm stable car amp is how much it costs. You’ll want to do some research online to see if there are any models that offer discounts or free shipping. If not, then you may want to look for one that’s affordable.

However, if you’re looking for something more powerful and portable than the models that are available at a reasonable price, then you may want to consider spending a bit more on a model that comes with more features.


What is the meaning of 1 ohm stable?

1 ohm stable means that the power supply is able to deliver a steady current of 1 ampere to the load without any fluctuations. This ensures a constant flow of energy from the power supply to the circuit.

Is a 1 ohm amp better than a 2 ohm amp?

A 1 ohm amp will be more suitable for your needs, since it will provide a lower volume output. Car amplifiers are generally more powerful, and are capable of handling higher volumes. In such cases, you should consider getting a 2 ohm amplifier instead, which will be more efficient and cost-effective in the long run.

How do I know if my amp is 1 ohm stable?

The best way to know if your amplifier is 1 ohm stable is to check its specifications. Some manufacturers might give you this information in their manuals, while others might not. 


We hope that this article will help you find the best 1 Ohm Stable Amp for your car. The main thing that you need to look for when buying an amplifier is to get the right sound for your needs. A great way to find out what kind of sound you want is by going to a local music store and trying out different amplifiers. This will help you determine which one gives you the best sound and feel.

Audio Loli