Alpine SWR-12D2 Review (Tested by Experts!)

If you’re looking to upgrade your speaker setup with a subwoofer, our consumer testers recommend the Alpine SWR-12D2 Type-R 12″ Subwoofer. The 12-inch subwoofer features dual 2-ohm voice coils, which mean it can easily handle high power from amplifiers.

The subwoofer’s frequency response is also impressive — it reproduces deep bass notes down to 40 Hz. Its subwoofer box design, which comes in black or white, is compact and won’t take up too much space.

Our Media & Tech Lab test engineers evaluated the sound quality and performance of the subwoofer, rating it for quality, loudness, distortion, bass, visibility, sound quality and distortion.

We also looked at how easy the subwoofer was to set up, including how securely the subwoofer plugs into the amplifier and how smoothly it connected to Bluetooth devices. Overall, this subwoofer is a great value for the price.

Our consumer testers give the subwoofer a 4.5 out of 5 star rating for its sound quality, 4.5 out of 5 stars for its loudness, 4.5 out of 5 stars for its versatility, 4.5 out of 5 stars for its bass, and 4 out of 5 stars for its distortion.

Here are the best speakers, subwoofers, and home entertainment systems you can buy right now.

Alpine SWR-12D2 Review:

The Alpine SWR-12D2 Type-R 12″ Subwoofer with Dual 2-ohm Voice Coils was designed to deliver an immersive experience.

So, we dropped it on concrete, and it didn’t immediately explode. While it was loud, it didn’t shake the whole house, and it didn’t rattle the car.

The bass was tight and powerful enough, and the speaker was surprisingly compact for its output.

Things to consider:

Sound quality:

This subwoofer produces deep, bassy sound. It’s not as loud as some of the more expensive options, but it’s ideal for listening to music and watching movies.


The manufacturer recommends placing this subwoofer 12″ away from a wall for the best sound, so this subwoofer is best suited for home theater systems.


The subwoofer uses two 6-volt, 20-amp batteries, so it’s a good choice for people who already have a battery bank.

Ease of use:

The subwoofer is mountable, so it’s easy to position it. The subwoofer also features an LED battery life indicator and automatic on/off controls.

How We Pick & Test?

Size matters:

Bigger subwoofers produce deeper bass, so we look for models with at least 12 inches.

Paper tests:

We place subwoofers on plywood panels, and we measure each subwoofer’s output with a microphone.

Objective testing:

We use scientific tests to measure output with a microphone and speaker stand.

Features We Like:

  • Dual Voice Coil
  • Vibration Resistant
  • Back Screw Terminals
  • 4-layer Dual Voice Coil Design
  • Car and Top Mount Depth: 6-3/8″
  • Cutout Diameter: 10-7/8″

Pros and cons of Alpine SWR-12D2:



Is this subwoofer a good purchase?

If you’re in the market for a subwoofer, it can be easy to overspend if you don’t have any experience with this type of component. You can always save a bit of cash by buying a low-quality sub, but you’ll likely end up with a poor listening experience.

To help you avoid overspending on a sub, you need to know the potential strengths and weaknesses of different models. This will help you narrow down your options and choose one that delivers the best sound quality for the price.

How to set up Alpine SWR-12D2?

The Alpine SWR-12D2 is a dual band mobile radio that operates on the 136-174 and 400-480 MHz range of frequencies. It’s a compact and rugged device that can transmit and receive over six watts of power.

Alpine provides a detailed instruction manual that walks you through the process, and this guide will help you set it up successfully:

  1. Place the SWR-12D2 unit on a flat surface before you get started.
  2. Connect the SWR-12D2 to a 12-volt power source using the supplied power cable.
  3. Connect the SWR-12D2 antenna to the radio using the supplied cable.
  4. Connect the SWR-12D2 antenna to your radio’s included BNC-style antenna connector.
  5. Insert the SWR-12D2’s battery into the battery compartment.

How Alpine SWR-12D2 Subwoofer Compared To Others?

 Alpine SWR-12D2 Subwoofer – A subwoofer is an essential part of any stereo system. It helps to add bass to music, which is an essential component for the overall sound quality.

Subwoofers have the ability to reproduce bass frequencies, so it’s no wonder they’re often used in combination with an amplifier.

This can help you to get far superior sound, as you’ll have the ability to hear low-frequency sounds that you may not normally be able to discern.

Subwoofers come in a variety of different designs and sizes, with some being enormous while others can be much smaller. This obviously has an impact on how much they can reproduce.

Alpine SWR-12D2 Subwoofer – The Alpine SWR-12D2 subwoofer is a popular choice, and many people wonder how it compares to others.

The main difference between the Alpine SWR-12D2 and other popular subwoofers is that this one is much smaller.

It’s also designed to be much quieter than the others, which makes it ideal for smaller rooms and situations in which you want to avoid causing disruption.

It’s important to note that some people may want more bass than others. If you’re one of those people, you may want to consider a larger model.

However, many people like the lower volume of this one, as it allows them to enjoy superior sound quality without their neighbors being disturbed.

My Personal Experience With Alpine SWR-12D2:

 Alpine SWR-12D2 is a 12” 1600 Watt 2-way component system. It is without a doubt the best component system that I have personally used with 9 speakers 3-way component system.Alpine SWR-12D2 is 32 AWG 4-Stranded speaker wire.

is 160 inches (16m) long with 4.2 mm2. The wire has a jacket consisting of PVC and wire is 200 percent coverage. This wire is very flexible because PVC jacket makes it easier to maneuver it.

The wire has very low resistance ensures that your speakers perform to their best. The wires are not very flexible, but relatively soft.

The wire is coated with PVC, but it is only 200 percent coverage. This means that insulation is missing in some parts of the wire making it less durable. However, the wire is more than enough for most installations.

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