Best Passive Subwoofer Amplifiers: For Bass Pumping

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Best Passive Subwoofer Amplifiers: For Bass Pumping

Are you looking for amplifiers to power your passive subwoofers.

This article is for you if so. An amplifier is essential for passive subwoofers to work properly.

A good passive subwoofer amplifier is the best way to get your bass pumping.

There are many subwoofer amplifiers available, but which one is the most efficient?

Which passive subwoofer amplifier is the best for you?

Best Passive Subwoofer Amplifiers

This article will discuss these issues and give more information about passive subwoofers.

My top three products. These include

Best choice: Acoustic Sound Ws1005

Best Bass: Audio Class A/B300W Audio Amp

Excellent Durability : AD18 amplifiers.

Why would you need an amplifier to power your subwoofer’s output?

There are two types of subwoofers: passive and active subwoofers.

Active subwoofers get their power from power outlets. Plugging them into your wall will cause them to roar.

Passive subwoofers, on the other hand, don’t plug in to power outlets. They draw power from amplifiers. If your subwoofer is passive, you will need an amplifier to power it.

You might also consider using an active subwoofer with an amp. This is because some amps can add bulk to the sound. Some amps have controls that are necessary, such as the crossover or bass boost knobs.

5 Best Passive Subwoofer Amplifiers Reviewed

ProductImagePowerFrequency responseProduct page
#1. Acoustic Audio WS1005

- Editor’s best choice
200W50 – 200Hz at 4-8 ohm.Check Last Price
#2. Dayton Audio SA230

- Best home theater subwoofer amp
230W80 to 180 HzCheck Last Price
#3. OSD Audio 300W

- Best bass
300W40Hz – 500HzCheck Last Price
#4. S.M.S.L AD182 x 70W at 4Ω18Hz – 22kHzCheck Last Price
#5. Blue Octave Home B1000S200 Watts50 - 200 Hz +/- 3dBCheck Last Price

Acoustic Sound Ws1005

Editor’s choice

Acoustic Audio WS1005 Passive Subwoofer Amp

Check Last Price


  • Frequency Response: 50-200Hz at 4-8 Ohm
  • AC 18V power supply
  • The system can draw 200 watts of power.


It is small in size, the all-black subwoofer amp is very compact.

It is small enough to be hidden from view and ideal for use in smaller areas.

It feels solid in general. The control knobs are well-constructed and sturdy.

They should not be an issue for long periods. They are silver-colored and can be sized.

It is easy to find them even in the dark. The Acoustic Audio amp has feet at the bottom to keep it grounded and prevent heating from reaching the floor.

Sound quality

The WS1005 has an amplitude range between 50Hz to 200Hz. While 20Hz is the most common low-frequency limit, only a few people can hear it.

50Hz is closer to the low-frequency threshold of people’s hearing. It is possible to lower your expectations for those who can hear sounds at 40Hz.

You can select the frequency of the crossover using one of these knobs. Another knob controls the volume of the subwoofer. A subwoofer of high quality can produce at most 3/4 of its maximum volume without making an unnatural sound.


The WS1005 passive subwoofer amplifier should be inspected before you make your purchase

The amp has raw outputs that can be used to connect cables.

This means that you will need the cable with bare ends at each end to connect it to your subwoofer.

On the back of your amp is the slot for connecting the wire.


  • Compact design
  • In dim lighting, knobs are easy to locate.


  • It could be very difficult to repair the raw cable input.

Dayton Audio SA230, 230W Amp

The Best Subwoofer To Home Theater

Dayton Audio SA230 230W Subwoofer Amplifier

Check Last Price


  • Frequency: 80-180 Hz
  • Signal-to-Noise Ratio – 85 dB A-weighted
  • Rated Power 0.01 – THD
  • Phase Adjustment – From 0deg up to 180deg
  • Bass Boost 25 to 50 Hz
  • Voltage Requirements 120/230 VAC


Amps are usually equipped with metal frames. The amps are not able to handle the contents.

Despite this, the steel body of The Dayton subwoofer amplifier audio amplifier is stronger than ever. It is made of strong aluminum and a sturdy chassis.

This amplifier has a lower control knob than the Acoustic Audio WS1005.

You might be tempted to grope before you reach them in the dark. You have nothing to distract from the front. The two knobs and the turn-off switch for power are all you need. You will find the rest of the essential stuff in the rear. This includes the input and output ports as well as any other ports.

Audio quality

The bass of the subwoofer amplifier is slightly lower than that of the W1005. You can tune it down to 40Hz.

Audiophiles who can hear high-frequency frequencies will also be treated. The effects of the increase in bass will be appreciated by ordinary people. It is interesting to see that you have the ability to choose how much bass you want to increase.

You can easily increase your 65Hz to 80Hz volume for those who enjoy trap music.

You might want to increase the volume of your bass boost if you listen to pop music more often. The Phase knob is a control that alters how the audio sounds. This knob allows you to adjust the phase of your audio.


Dayton Audio amplifier Dayton Audio amplifier offers more options for connecting. You have the option to choose from the RCA input and output, or the raw cable input or output.

If you have not yet purchased your subwoofer, make sure to purchase the RCA connector cable. It will make it easier to connect. If you are unfamiliar with the concept, don’t try to connect wires that you don’t own.


  • There are many connections options available for connecting
  • You have more options when it comes to the frequency of bass boost.


  • Control with small knobs

Audio Class A/B300W Audio Amp

Best Bass

OSD Audio 300W Mono-Channel Class Subwoofer Amplifier

Check Last Price


  • Frequency Response: 40Hz – 500Hz
  • Mounting Depth: 3.9″
  • Power Handling: 300W
  • Woofer 8’8 Ohm
  • Passive Radiator 10″


The OSD Audioamp, which is an all-black version of the device, is different. Its design is similar to the Dayton Audio amplifier. It has a steel frame and an aluminum faceplate.

The button for power has a red indicator. This indicates that the amp has been turned on. Although it may seem smaller, it is quite different. It weighs in at 15 pounds. It weighs 15 pounds.

Sound quality

The amp produces a deep bass. This subwoofer should be capable of producing such a sound. You’ll enjoy the explosions and rumbles of your favorite movies.

There’s more!

You can turn the knob to increase bass if you are unhappy with your bass level.

You can choose the frequency that you want to increase with the bass boost. It can be challenging if you change the settings often. You will find the knobs for bass booster at the rear of your amp.


The stand-by feature is a significant feature. This amp reduces its energy consumption even when it’s not being used. This will help you save some money on your energy bills.

This amp also offers many connectivity options including raw cable and an RCA. It is an adaptable amp that can be used with most subwoofers.


  • Adjustable bass booster
  • Multiple connection options


  • It is not easy to find the knobs that boost bass.

S.M.S.L AD18 HiFi Stereo Amplifier

Excellent Durability

S.M.S.L AD18 HiFi Audio Stereo Amplifier with Bluetooth 4.2 Supports Apt-X

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  • Frequency response : 18Hz – 22kHz
  • THD: 0.04 Percent
  • Amplifier power 2 x 70W @ 4.O @ 10% @ 24V
  • Jack DC 24V 5A Power Supply


This amplifier is made of durable metal, as you’d expect. This is not all. AD18 is rounder than other amps. AD18 has round edges.

Although the circularity is not obvious, you can still use your fingers to run across the edges without fear of being cut.

This finish can be found on both the front as well as the back of the amp. This is why other amps have a rear with a lower quality appearance than the front. The AD18 HiFi stereo amp is a safe and reliable option.

Audio quality

The amp will try to keep in line with the audio that passes through it. This gives audio playback some transparency.

however, has no heat or weight. Stereo separation is excellent.

Audio can expand to large soundstage. The soundstage can be precise in addition to its size.

This means that you will be able hear all the elements of your music at their correct positions. This is particularly true for movies, where all sound will be displayed in the correct order.


The amp is much more modern than previous models. The amplifier has a display screen at the front and Bluetooth connectivity to other compatible devices.

It’s getting better. It’s easy to pair your device. Pairing your device is simple. AD18 includes the NFC function that allows for seamless connection.

There are wired options for you. If you prefer to listen to music through your headset, the 3.5mm headset jack can be found on the headset’s front.


  • There is a headphone socket.
  • Because there are no sharp edges, it is much easier to use.
  • It makes it easier to work with the display screen.


  • No crossover adjustment knob.

Blue Octave Homes B1000S Subwoofer Amplifier

Blue Octave Home B1000S Subwoofer Amplifier

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  • The frequency response is 50 Hz to 200Hz ,+/-3dB
  • Power amplifier output 200 Watts
  • Output Impedance: 4-8 ohm
  • Power Supply AC 18V
  • Fuse: 3A / 250V


It is the Blue Octave B1000S at Home Subwoofer amplifier. Both in appearance and function, it looks very similar to Acoustic Audio W1005.

It is made from sturdy metal so it won’t easily break or fall. The knobs are large and are located in the front of your amp. This makes it easy for you to find them.

Vents on the other side of the amp control the heat. Even without vents, heat can quickly build up.

Sound quality

Acoustic Audio WS1005 has a striking resemblance in sound quality. There is plenty of space to increase bass with the frequency range from 50Hz to 200Hz.

You can adjust the frequency of crossover with the crossover knob. If you have high-quality speakers or tweeters, it is possible to lower the frequency.

However, it is more powerful than its Acoustic Audio amp. It has 200W of power and requires a powerful subwoofer in order to use the full range.


On the front of the amo are three controls: power, subvolume, and a crossover knob.

You can only increase the volume of your subwoofer. You cannot choose the frequency for the bass booster like you can with the OSD Audio amplifier.

Both the input and output ports can accept different cables. These ports accept RCA cables, while the ports for output are raw cable ports. This limits the number of subwoofers that you can use with the amp. There is no headphone connector.


  • Simple design, simple to use
  • Strong, durable chassis
  • Even in dim lighting, knobs are easy to locate


  • There are very few ports for connecting.
  • Heats up quickly

Blue Octave home B1000S


Each subwoofer amplifier works in its own way.

As I do every day, I must choose my top three products. These include Dayton Audio, OSD Audio and AD18 amplifiers.

These three options were chosen because they have features that make it easier to use.

Dayton Audio, OSD Audio amplifiers come with different connection types. You can use more passive subwoofers with them than Acoustic Audio or Blue Octave amps.

AD18 is a member of a unique league. It is more modern, so it has greater accessibility to current technology. It has a 3.5mm aux port and a headset jack. It is easy to use and that is what impressed me the most about this amp.

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