Best Amp for 15-inch Subwoofer

Best Amp for 15-inch Subwoofer
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The options are numerous options to mention, however finding the best is usually the goal. This is why we are out here looking for the best amp for 15-inch subwoofer. Out of the many options in this category, the number one remains the Fosi Audio BT30D Bluetooth 5.0 Stereo Audio Receiver Amplifier.

Comparison Table for the Best Amp for 15-inch Subwoofer

Click on the images to get your Best Amp for 15-inch Subwoofer on Amazon

1Fosi Audio BT30D Bluetooth 5.0 Stereo Audio Receiver AmplifierBLUETOOTH yes
2Skar Audio RP-4500.1D Monoblock Class D MOSFET Amplifier with Remote Subwoofer Level ControlBLUETOOTH no
3Kicker CX1800.1 Car Audio 1800-Watt Mono AmplifierBLUETOOTH no
4Fosi Audio M03 Subwoofer Amplifier 200-Watt Mini Mono Audio AmpBLUETOOTH no
5Nobsound G2 PRO Hi-Fi 300W Subwoofer Audio Mono Channel Class D Power AmplifierBLUETOOTH no
6Fosi Audio TP-02 Subwoofer Amplifier TDA7498E Mini Sub Bass Amp Digital Class DBLUETOOTH no
7Nobsound NS-03G Subwoofer Amplifier 100W Mini Sub Power AmpBLUETOOTH no

Compare The Top 7 On One Page

Best Amp for 15-inch Subwoofer

Even the best subwoofer is useless if it is not paired with an amplifier to help power it.

It is not just subwoofers, when you have a passive speaker, an amplifier will always be needed.

Active speakers and subwoofers can power themselves but sometimes using the powered option makes everything better.

That being said, the options to pick from are too numerous to mention and this makes finding the best hard.

How to Identify the Best Amp for 15-inch Subwoofer

Although it is a hard task, it is not difficult to do as the best will usually be visible when you look closely.

Some of the features to consider include;

  • The class/type of amp in use
  • What the channel configuration of the amplifier is
  • The number of technological advancements available
  • Connectivity options that come with the amplifier
  • Presence of remote control to make things easier

1.BT30D Fosi Audio Bluetooth Stereo Audio-Receiver Amplifier is the No 1 choice for the Best Amp for 15-inch Subwoofer

It is no surprise that we are starting from the Fosi Audio store as what we need is a good amplifier.

This is one of the best stores to look at when you want amplifiers that come with exceptional quality.

The category will not even be a factor as they come with the best regardless of the type of amplifier you want.

For example, for the best 15” subwoofers, they put their best foot forward with the amazing BT30D stereo amplifier.

Amazing features can be found everywhere and this is why we pick them as the best in this category.

One of the first things you notice is the channel configuration of the amplifier which is set at 2.1.

What this means for you is that you can connect a subwoofer as well as two stereo speakers of any kind to this amplifier.

Safety and efficiency are key when you are using this amplifier and there are features put in place to guarantee this.

One is the power protection circuit which is on hand to allow usage of this amplifier without any electronic damage.

This way both your amplifier and the connected speakers are safe from electronic hazards like sparks and short-circuiting.

Also, the power used is supplied by a 24 volts/4.5 amps adaptor which makes this Fosi Audio amp stable and efficient.

This amazing receiver/amplifier weighs around 2.05 pounds and has a dimension that is measured as 10.28” X 7.28” X 2.32”.

When connecting to devices to receive audio input, this amplifier supports both the wired method and the wireless method.

Because of the advantages, most users would prefer to use the wireless connection method rather than use wires.


  • Amazing signal to noise ratio and frequency response
  • A compact and portable option
  • Comes with both wired and wireless connection options


  • No remote control included

Purchase the Fosi Audio BT30D from Amazon by clicking on the image link above

2. Skar Audio RP-4500.1D Monoblock Class D MOSFET Amplifier with Remote Subwoofer Level Control

Anyone who talks frequent strolls through the sound market must have met the Skar Audio store at least once before.

They are so good at what they do and they achieve this from proper research and implementation of research results.

They spend time studying the sound needs of people and even more time trying to provide the solutions required.

There are so many categories you can look at whether for speakers, receivers, home theatres, or amplifiers and they are always there.

An example here is their amazing RP-4500.1D as we are looking to find the best amp for 15-inch subwoofer.

This amplifier comes with everything you will need to call it the best and the availability of options is the first.

While the quality is maintained, so many of the features can vary so you choose the one that suits you most.

For example, you can choose between seven different power outages ranging from 350 watts to 4500 watts.

Also, the amplifier class is different in some, you have class D for some, class A/B, and also class AB/D.

This one is a 4500 watts class D MOSFET Monoblock power amplifier which ensures amazing efficiency.

At 1-ohm, you are going to enjoy a peak power that can go as high as 7000 watts while the RMS remains at 4500 watts.

A 4-way protection circuitry and a 1/0 AWG power and ground input terminal are on hand to give top-notch current flow.

Here, the onboard bass boost control is between 0 – 9dB while the frequency response will range from 20Hz to 250KHz.


  • Comes with a subwoofer level remote control
  • Gives stable output at an impedance of 1-ohm
  • It is a class D amplifier


  • Only suitable for use in cars

Purchase the Skar Audio RP-4500.1D Monoblock Class D MOSFET Amplifier with Remote Subwoofer Level Control from Amazon by clicking the image link above

3. Kicker CX1800.1 Car Audio 1800-Watt Mono Amplifier

Another store that is work mentioning whenever you are looking to get quality sound output is the Kicker store.

Quality is always assured when you come here regardless of what it is your looking for as long as the sound is concerned.

They make some of the best products whether it is speakers of any kind, receivers, amplifiers, home theatre systems, etc.

When it comes to amplifiers, the category of amplifier you are looking to get will not even be a factor.

This is because they will always provide you with the best and a prime example is the CX1800.1 car audio amplifier.

It is one of the most efficient options on the list thanks to the fact that it is a class-D amplifier.

Unwanted interferences when is used will be avoided on this amplifier thanks to the three-seconds on and off delay in it.

Perfection in the sound it produces and control over that is achieved thanks to the presence of variable 12dB crossovers

There is also the proprietary kick equalizer which allows you to enjoy a 6dB variable bass boost on this amazing amplifier.

This will allow you to maintain sound even when you come across some additional low frequencies in your sound spectrum.

With the possibility of coming across low frequencies, there is also a danger that you will come across high frequencies too.

The manufacturer knows this and includes a 24dB subsonic filter which is going to protect your sound from potentially damaging frequencies.


  • It is a class-D amplifier system
  • Compatible with all subwoofer types
  • Comes with the variable bass boost and subsonic filter for perfect sound


  • Just suitable for use in cars

Get the Kicker CX1800.1 Car Audio 1800-Watt Mono Amplifier on Amazon by clicking the image above

4. M03 Fosi Audio Subwoofer Amplifier Mini Mono Amp

The Fosi Audio store will continually appear on our list as we are hoping to get the best out of the bunch.

This is because quality is where it begins and ends when you are looking at the products on the Fosi Audio shelf.

The category of products will not even matter as long as this is where you go to get your sound products.

This quality assurance has given them so popular in the market allowing them to compete with those at the top.

Here, we are looking at getting the best amp for a 15-inch subwoofer and they are at it again with the MO3.

This 200-watt mini Monoblock subwoofer amplifier comes with the best quality both inside and outside making it one of the best.

The first of many features that makes this system stand out from the rest is the fact that it is portable.

The Fosi Audio MO3 amplifier weighs 2.33 pounds and has a dimension that is measured as 10.16” X 8.54” X 2.52”.

There are so many selling points we will be looking at another one is the fact that it can power everything.

Whether you have an active subwoofer or a passive subwoofer, this amplifier makes it better or powers it from zero.

Asides from subwoofers, it can also be used to power any of the other household speakers – bookshelf speakers, floorstanding speakers, etc.

Speakers to be used with this Fosi Audio amplifier should be between the impedance range of 4 – 8 ohms.

On the front panel of this Fosi Audio amplifier, there are four control knobs/switches and they help with operations here.


  • A portable option when compared to others here
  • The functionality of this amplifier is improved by the low pass filter
  • Compatible with all subwoofer types


  • No Bluetooth connectivity is available

Buy the Fosi Audio M03 Subwoofer Amplifier from Amazon by clicking the image link

5. Nobsound G2 PRO Hi-Fi Mono Channel Class D Amplifier

The Nobsound store is always going to be mentioned since what concerns us here is the quality the amplifier brings.

There is no better place to find quality when it comes to receivers and amplifiers than to come to this store.

What you are looking for exactly will not have so much relevance as the best is assured regardless of category.

An example of this is the G2 PRO Hi-Fi amplifier which is seen as a class in so many categories of quality amplifiers.

There are so many things to consider when you are looking at the quality it comes with both on the inside and outside.

It comes with the TPA3255D2 chip and makes use of a power supply with specifications measured as 32 volts and 5 amps.

This power supply makes it possible for your amplifier to produce a power outage of up to 320 watts.

The maximum safe power outage however as recommended by the manufacturer is measured to be 300 watts.

Just like the Fosi Audio amplifier, this one can power any passive subwoofer or improve the functionality of an active one.

A subwoofer output port is located on the rear panel here and this is made specially to accommodate active subwoofers.

This amplifier is built to power subwoofers but it can also be used to power any other speaker you have.

The front panel has two switches, one used for power and the other is used to switch from subwoofer to normal speaker.

Also, on the front panel, you have two knobs that will help you control the volume and subwoofer frequency.

The frequency response on this class-D amplifier is measured to go from about 40Hz to 300Hz.


  • Comes with a protection circuitry
  • Collects less floor space as it is portable
  • Can power active and passive subwoofers as well as other speakers


  • Does not come with a subwoofer remote control

Click the image link to get the Nobsound G2 PRO Hi-Fi Amp from Amazon

6. Fosi Audio TP-02 Amplifier TDA7498E Amp Class D

You can have 10 amplifiers all from this store and the list will still be valued as it talks about the best.

That is how much quality is available to this store and the type of amplifier you need will not even matter.

We want the best amp for a 15-inch subwoofer here and the Fosi Audio store has given us the third option already.

Tomorrow, you might want something different like the best amp for a 10-inch subwoofer and they will still be there.

The TD-02 subwoofer amplifier is a class D amplifier and this goes to show the amount of efficiency it brings.

Just like most of the amplifiers on this list, this amplifier can power both the passive subwoofers and the active ones.

It is not just subwoofers when you go for this subwoofer, any type of speaker can be powered with this.

On the front panel, there are two control knobs for volume and subwoofer frequency and a switch for power.

One of the standout features is the highly efficient power output of up to 200 watts that this amazing amplifier gives.

This comes about thanks to the TDA7498E chip which is used for the internal circuiting of this Fosi Audio amplifier.

With this, you are going to get no noise, no pop as long as nothing is playing through the amplifier.

You are going to enjoy deep bass with this subwoofer thanks to the low-pass filter which gives you amazing frequency response.

The subwoofer control combined with the low-pass filter provides you with a clear and powerful low frequency.

For connection with your devices, you can use the RCA input port available on the rear panel of this amplifier.


  • A portable class D amplifier
  • Comes with the low-pass filter
  • Can power any type of speaker


  • Wireless connectivity is unavailable

Click the image link to purchase the Fosi Audio TP-02 Amplifier TDA7498E from Amazon

7. Nobsound NS-03G Subwoofer Amplifier 

Another Nobsound closes things out which is providing more evidence of the power and quality this store has.

They have carefully considered all that you want when you are looking for a quality amplifier and they provide it.

This continuous production of quality products has brought quality assurance and popularity to this amazing amplifier store.

For this model, there is a lot of quality features regardless of where you look; whether it is inside or outside.

The first is the TPA3116D2 chip which is on hand to give you a peak power which is measured to be 100 watts.

Thanks to this chip, you are sure of getting a high-power functionality when you buy this amazing amplifier.

It comes with the 3.5mm AUX input port on the rear panel which helps you connect this amplifier to devices.

On the outside, a solid shell design is used and this will give you some durability and improve the functionality.

There is a large knob when you look at the bottom of this amplifier and this is used to adjust the volume.

The power switch on this amplifier is found on the rear panel rather than the front panel like in others.

This amazing amplifier comes with a dimension measured to be 6.14” X 5.75” X 2.05” and weighs around 7.1 ounces.

The signal to noise ratio on this amplifier and the frequency range is measured as 98dB and 20Hz -200Hz respectively.

The fact that it is a compact option makes more people go for it to save floor space usage.


  • Can be used to power any speaker
  • Can be connected to any sound device
  • It is a portable and durable option


  • Active subwoofers cannot be powered with this amp
  • Wireless connectivity is unavailable

Get the Nobsound NS-03G Subwoofer Amplifier 100W from Amazon by clicking the image link

Conclusion on the Best Amp for 15-inch Subwoofer

A lot of things do not matter when you are looking to get a subwoofer amplifier like this.

The popularity of the store, price of the amplifier and the size might be factors you would love to consider.

However, it is important to note that none of these amazing factors will matter as you evaluate to make your decision.

What we want is the best and that is the one that offers the most features and charges the least.

During our search, quality was our focus as we wanted to know what each had to offer.

We found seven amazing amplifiers during this research on the best amp for 15-inch subwoofers.

However, the number one product on this list remains the Fosi Audio BT30D Bluetooth 5.0 Stereo Audio Receiver Amplifier.