Stereo Choice

Pioneer TS-SWX251 Flat Subwoofer Review


The Pioneer TS-SWX251 is a 10 inch flat subwoofer that is perfect for mdium-sized cars. It has an enclosure designed for compact spaces, and it works perfectly with minivan cargos, medium-sized SUVs and such. Given its flat design, the this Pioneer sub can be easily installed under the seats where it is virtually invisible.

Let’s take a closer look at the features, specifications, pros and cons of this popular sub, and see if we can help you decide whether this is the best type for your car.

Features And Specifications

Pioneer TS-SWX251 10 Inch Flat Subwoofer Main

The maximum power of this flat subwoofer is of 800 Watts and it weighs no more than 20 pounds. With a 89 dB sensitivity and a 4 ohm impedance, the Pioneer TS-SWX251 is a great addition to your mini-truck – also, the dimensions of the unit are 18 x 12 x 29 inches, and the flat box is able to deliver a frequency response that ranges anywhere between 20 Hz and 114 Hz.

The Pros 

One of the most important benefits of this subwoofer is the fact that it comes with a revolutionary and ultra shallow enclosure design that allows you to freely install it in the luggage area or even in the cabin. This makes the TS-SWX251 very space-effective and easy to handle, and it is very convenient for a variety of different trucks, from extended to crew cab trucks.

Overall, this sub is optimized to deliver a strong and powerful bass regardless of the position, as you can mount it either vertically on the side of the car or horizontally, under the seats if you plan to conceal it.

It also comes with an innovative air suspension control system (very cool!) that is especially designed to deliver impeccable bass – everything relies on the technology implemented by Pioneer which involves an air suspension system that traps the air between the drive and the main cone, thus delivering better sound linearity while increasing the life span of the subwoofer at the same time.

The Cons 

As it happens with just about any subwoofer on the market, this one has its downsides as well. For instance, some say that the sound clarity is affected when you use it at low volumes, and that there is a bothersome level of distortion interfering with the sound.

Pioneer TS-SWX251 10 Inch Flat Subwoofer Car


To sum it all up, the Pioneer TS-SWX251 comes with a great price/quality ratio, and if you are looking for a cost-effective yet feature-rich subr for your mini van or pick-up truck, then by all means this should turn out be a great investment.

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