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Pioneer TS-SW251

200W 10" Shallow-Mount Series Single 4 ohm Subwoofer

Discontinued
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This item has been discontinued

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Bundled Savings with this Product

=

10% Off on the Subwoofer Box!

Save 10% off a 10" sealed subwoofer enclosure with your purchase!

3.50

11097

504

Pioneer TS-SW251

$79.99

+

10% OFF

Single 10" Sealed MDF Subwoofer Enclosure (Belva MDFS10)

$34.99

Special Price $31.49 ($34.99 if purchased separately)

Single 10" Sealed MDF Subwoofer Enclosure (Belva MDFS10)

• 3/4" Medium Density Fiberboard Construction
• Durable Black Carpeting
• Pre-Lined with Poly-Fil
• Gold Speaker Terminals

(Offer 2 of 1)

Combined Total Price

$

You Save $

  • 10" Single 4 Ohm Shallow Series Subwoofer
  • Power Handling:
    • Peak: 800 watts
    • RMS: 200 watts
  • Impedance: Single 4 ohms
  • Carbon glass fiber reinforced injection molded polypropylene cone woofer
  • Woven cloth reinforced radial urethane surround
  • Air suspension excursion control system
  • Designed to fit into small spaces under seat, behind seat or rear side cabin
  • Double cone reinforced nodes
  • Angled push terminals
  • Fin-shaped basket: Channels airflow sideways instead of downward, improving performance and responsiveness
  • Frequency response: 20-144 Hz
  • Sensitivity: 89 dB
  • 1-year SonicElectronix.com warranty

Subwoofer Specifications

Subwoofer Series
Each subwoofer manufactured is part of a series. This is the name of the subwoofer's series.
Shallow Mount (Pioneer)
Subwoofer Size
Refers to the diameter of the subwoofer, measured in inches.
10"
Peak Power Handling
Peak power handling refers to the amount of power a speaker can handle during a brief musical burst. The RMS power range figure is a much more reliable rating for determining the speaker's power requirements. The Peak power handling specification is typically rated per speaker unless otherwise noted.
800 watts
RMS Power Handling
The RMS power is the amount of power the speaker requires to operate safely and properly. RMS Power Handling refers to the amount of power a speaker can handle on a continuous basis. We recommend powering your speakers or subwoofer with 80%-120% of its recommended RMS rating. The RMS power handling specification is typically rated per speaker unless otherwise noted.
200 watts
Voice Coil(s)
Dual voice coil subs have more wiring flexibility than single voice coils subs; however, single voice coil subwoofers provide easier hookup options for wiring multiple subwoofers in parallel or series. You may also run a dual voice coil (DVC) sub in parallel, series, or combination. A quad voice coil has four voice coils and is equal to two dual voice coil subwoofers as far as wiring goes.
Single
Impedance (Per Voice Coil)
The load value (in ohms) that the speakers present to the amplifier per voice coil - the amount of resistance to the current flow. This is a key specification as subs wired in parallel or low impedances can create problems with your amplifier and potentially void all warranties. We encourage you to ask our support department prior to purchase if you do not understand which impedance level will suit your application best.
4 ohms
Voice Coil Diameter
Diameter of voice coil, usually measured in inches.
Frequency Response
The range of frequencies the speaker will reproduce (lowest frequency to the highest). Bigger is better, meaning the wider the range, the better. The optimal range is 20 - 20,000 Hz (which is the range of human hearing).
20 - 144 Hz
Sensitivity
An efficiency or sensitivity rating tells you how effectively a speaker converts power into sound. The higher the number, the more efficient the speaker and the louder it will play with the same input power. An efficient speaker helps you maximize your available power. Most sensitivity ratings measure the speaker's output with 1 watt of input, 1 meter from the speaker. Some speakers' sensitivity is measured with 2.83 volts of input, instead of 1 watt.
 
Efficiency (1w/1m) is not an accurate indicator of a subwoofer's output capability and should not be used as a comparison to other speakers or subwoofers to determine which one is "louder".
89 dB
Subwoofer Design
This is the design of the subwoofer or the opening of the subwoofer enclosure. Each design has it's own benefits, whether it is a square, circle, or oval.

Round/Circle: This is the typical and common subwoofer design. They have a round cone and are a circle in design.

Square: These woofers are able to achieve a greater cone area in a smaller space. Because of the greater surface area, some square subwoofers will be louder than a round subwoofer of the same size.

Round / Circle
Main Cone Color
This is the color of the speaker's or subwoofer's cone.
Black
Woofer Composition
Lightweight woofer cone materials are essential for efficient operation. Poly cones produce exceptional sound and are sturdy against various changes in temperature. Paper cones are very efficient, and when treated for moisture resistance, will perform at a high level. Poly refers to polypropylene, which is thermoplastic or fibers that are polymers of propylene. IMPP refers to injection molded polypropylene, a commonly used process and material in speakers.
Injection Molded Polypropylene (IMPP) w/ Carbon/Glass Fiber
Woofer Surround
A speakers surround is part of the suspension system. The surround protects the cone and prevents it from being displaced as it flexes out from the basket. It is usually made of a durable material like treated foam or rubber in order to withstand the strenuous job of producing bass frequencies.
Woven cloth radial urethane
Magnet Structure
Defines the overall structure of the subwoofers magnet.
Subwoofer Grille
Most subwoofers are able to accommodate a universal grille; however, some subs include a grille and others have a specific, optional grille available for purchase separately. If "yes", then the subwoofer includes a grille. If "optional (sold separately)" the matching grille will need to be purchased in addition to the sub.
No
Re-Cone Kit Available
Some higher end subwoofers have replaceable cone assemblies. In case of a blown woofer, a recone kit allows for a simple replacement, as opposed to purchasing an entire new subwoofer.
No

Recommended Enclosure Specifications

Recommended Enclosure Type
This is the recommended type of enclosure that the subwoofer should be installed into. Some subwoofers are specially designed for particular enclosures.

Sealed: These enclosures completely enclose the air inside the box. These boxes produce a tight bass.

Ported/Vented: These enclosures have a slot of air to escape from the box. The result is a sound that has more "boom".

Bandpass: These are a combination of both sealed and ported enclosures. They can be very efficient, but require tuning for the best response.

Sealed
Optimum Sealed Box Volume
This value indicates the ideal sealed box volume that the manufacturer recommends for the subwoofer. The volume is typically displayed in cubic feet.
Optimum Ported Box Volume
This value indicates the ideal ported box volume that the manufacturer recommends for the subwoofer. The volume is typically displayed in cubic feet.
Top-Mount Depth
The depth when installed on top of the mounting surface. Measured from the bottom of the speaker's magnet to the bottom of the mounting holes on the rim of the speaker.
3-1/8"
Shallow Mount Installation
This means that the subwoofer/speaker is designed to be installed in areas that do not have a lot of space. Shallow mount subwoofers are typically found under a seat or behind the seat in some trucks.

Shallow mount speakers will typically have a mounting depth of 2" or less, while shallow mount subwoofers will typically have a mounting depth of 3" or less.

Yes

Electromechanical Parameters

Free-Air Resonance (Fs)
The free-air resonance frequency of the subwoofer, measured in Hz. At this frequency the weight of the moving parts is perfectly balanced with the subwoofers suspension system.
Equivalent Compliance (Vas)
This is the amount of air that has the same stiffness as the subwoofers suspension. The greater the rating, the lower the stiffness and larger recommended enclosure. It is measured in Liters.
Total Speaker Q Value (Qts)
This is the subwoofers relative damping (Q) at the resonance frequency (Fs), including all dimensionless losses. Essentially, a high Qts value (closer to 1.0) means the subwoofer is great for sealed enclosures and a low Qts value (closer to 0) means the woofer is great in vented enclosures. A Qts of around 0.45 means the woofer will work decently in either enclosure type.
Electrical Q Value (Qes)
The subwoofers relative damping (Q) at the resonance frequency (Fs), including electrical losses. Also called the mechanical damping of the subwoofer. The unitless measurement usually varies from 0.5 10.
Electrical Resistance of Voice Coil (Re)
Amount of DC resistance of the subwoofer when measured with an ohm meter. Typically, this will read less than the impedance rating of the subwoofer.
Mechanical Q Value (Qms)
This is the subwoofers relative damping (Q) at the resonance frequency (Fs), including mechanical losses. Also called the mechanical damping of the subwoofer. This unitless measurement usually varies from 0.5 10.
Efficiency Bandwidth Product (EBP)
This number represents the trade off between having an efficient woofer and one with a wide bandwidth. To calculate this number, take the Fs and divide it by the Qes. If the number is below 50, the woofer is designed for a sealed enclosure only. If it's between 50-100 it can be used in either. Lastly, if it's greater than 100 it's designed for vented enclosures.

Specials with this Item

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Warranty and Return Policy

Parts Warranty Duration
1 year
Labor Warranty Duration
1 year
Warranty Provider
Sonic Electronix

Summary of Customer Ratings & Reviews

Rating Distribution

5 Star
66%
4 Star
20%
3 Star
9%
2 Star
3%
1 Star
3%

Average Attribution Rating

Durability
4.4
Value
4.5
Features
4.2
Design
4.6
Usability
4.5

lk

paradise, ca

Overall
Durability
Value
Features
Design
Usability

good buy

July 18, 2010

good for using in single cab trucks

2 of 2 found this helpful

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Stuart

Centralia, WA

Overall
Durability
Value
Features
Design
Usability

Great Woofers!

July 13, 2010

These are great subwoofers, I installed them together in a custom box, and they sound GREAT, they were easy to mount, and are very high quality, I've been running them fairly hard for 6 months now, and no problems.

2 of 2 found this helpful

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wright

watertown, NY

Overall
Durability
Value
Features
Design
Usability

great power for size

November 10, 2009

went with the shallows for my tundra, perfect fit. only thing i didn't like was the placement of the wire terminals. i had to flip the speaker upside down in the box because the terminals were hitting the box right side up. other than that it puts out well for being in a small, wedge enclosure. if it were in a regular size box with another 10" it would sound phenomenal. never came close to giving it max power either, it doesn't need it.

2 of 2 found this helpful

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Stingray

Grand Prairie, TX

Overall
Durability
Value
Features
Design
Usability

Big sound; little space

March 10, 2014

This sub rocks for such a thin design! We ordered a second one because we were so pleased with the first. They fit into a slim customized box for '82 Corvette and still left plenty of space in the back. As a mater of fact, the bass was so overpowering we had to set them at about 50% so the music sounded right with the pioneer 6X9's and 4x6's.

0 of 0 found this helpful

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Stacy

Grand Prairie, TX

Overall
Durability
Value
Features
Design
Usability

Great Sound!

September 23, 2013

This sub can easily overpower the other speakers if it isn't held back. Really good sound.

0 of 0 found this helpful

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c

michigan

Overall
Durability
Value
Features
Design
Usability

great value

August 26, 2013

We are happy with the subs we bought, so far no problems and they sound great..price was right too.

0 of 0 found this helpful

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Harry

Pittsburgh, PA

Overall
Durability
Value
Features
Design
Usability

Garbologist

July 28, 2013

Very good sound, especially after break-in. Good response in a small box and contributes nicely, even at low volumes.

0 of 0 found this helpful

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Kyle

Valencia CA

Overall
Durability
Value
Features
Design
Usability

Amazing Quality

June 4, 2013

Sub is the cleanest shallow mount I have heard in a long time that compliments the space of my truck greatly! Would easily recommend this to anyone looking for a shallow mount style sub

0 of 0 found this helpful

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J.J.

Greenville, SC

Overall
Durability
Value
Features
Design
Usability

great

March 31, 2013

I have this 10 inch Pioneer on my golf cart powered by a power acoustik amp, and it sounds great. ive been running it for about a year now, and still hits hard

0 of 0 found this helpful

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Georgia

Buford GA

Overall
Durability
Value
Features
Design
Usability

Exceptional Value

February 13, 2013

I purchased these speakers for a very tight space in my Nissan Frontier 2000.I was skeptical about the sound and once everything was in place it was worth it.D only problem I have is its too SMALL..But I couldn't use larger ones..Lol lol

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Colin

Sandusky Ohio

Overall
Durability
Value
Features
Design
Usability

Good price

February 7, 2013

Fast shipping and would definitely buy products from them again

0 of 0 found this helpful

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victor

miami beach, FL

Overall
Durability
Value
Features
Design
Usability

great buy

December 13, 2012

I INSTALLED IT WITH THE GM-D7500M AMP AND THE SOUND IS JUST GREAT

0 of 0 found this helpful

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North Georgia

Dacula

Overall
Durability
Value
Features
Design
Usability

Yup

August 19, 2012

I am not a versed person in car audio music but I bought myself 2 of these for my Nissan Frontier box & I must say its worth the money.

0 of 0 found this helpful

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Carlos

Orlando, FL

Overall
Durability
Value
Features
Design
Usability

Good value

August 9, 2012

This little sub works fine... great price installed into a woofer box and it has great bass sound.

0 of 0 found this helpful

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kirk

safety harbor

Overall
Durability
Value
Features
Design
Usability

great value

July 2, 2012

sounds great in a small space. Installed in a custom box inside jeep wrangler rear seat. sounds good with all types of music. It wont break your neighbors windows but it will get you noticed. Highly suggest if space is an issue.

0 of 0 found this helpful

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Jon

Guilford, CT

Overall
Durability
Value
Features
Design
Usability

Great sub

June 11, 2012

I wanted to replace my big bulky subwoofer box for a much, much smaller one in my pickup. This sub fit into the tiniest box I could find and sounds awesome. You won't hear it five blocks away, but it's more than enough to add some great pounding bass to your vehicle. Price is very good too. This sub is a great value.

0 of 0 found this helpful

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Joshua

JEFFERSONVILLE, IN

Overall
Durability
Value
Features
Design
Usability

Best shallow mount subs for the money!!!!

April 8, 2012

I bought a pair of these for my crew cab frontier because there is only 4" of spece behind the rear seat! After some customization i was able to build a box that fit. I first tried them out in my car which i have two 15" MA audio and they surprised the heck out of me when they were almost as loud and clear as the 15's. For the money i dont think there could be any better buy out there.

0 of 0 found this helpful

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Jared

Atlanta

Overall
Durability
Value
Features
Design
Usability

Pioneer-Shallow-Mount-TS-SW25

February 5, 2012

Bought a custom box to fit under the rear seat in a Ford Explorer Sport Trac. Not much choice as I had to have a shallow mount speaker. Though the box I bought was only meant to house 1 10" I took a chance and cut a second 10" hole and was able to mount two 10's in the box!! Have it connected to an Alpine 250watt sub amp and it thumps with the best of them!! Have not ported the box and I'm sure it would deliver even more sound but don't seem to need it. Best shallow subs I've seen or heard anywhere. Highly recommend these speakers.

0 of 0 found this helpful

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Anthony

Victorville, CA

Overall
Durability
Value
Features
Design
Usability

Unbelievable Sound!

December 20, 2011

For anyone in doubt like I was, this sub definitely does not disappoint. I have two hooked up to a Pioneer GM-D8500M Class-D Mono Amp in a slim Qlogic box (Qlogic TCM210) in my Toyota Tundra Crewmax, and this thing rocks! Hits lows like a full size sealed or ported box would! Even the installer was surprised at the sound that came out of these. I couldn't be happier. If you're low on space, and also wanting to save some cash, you will not go wrong with these! I didn't think the lows that these produce were possible in the small amount of airspace these use, but I'm now a believer!

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Stephen

Auburn, CA

Overall
Durability
Value
Features
Design
Usability

DONT BUY!!!! Horrible Quality, Decent Sound

August 10, 2011

Please, for your own sake spend a little extra cash and buy some nicer subs than these. I just had my 3d sub blow out and they were purchased only last december. I have them configured with the correct amplifier and were professionally installed. they all have burnt out with only medium usage on medium volume levels.

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Accessory Tools and Products

Accessories added

Single 10" Subwoofer Angled Truck or Hatchback Box Enclosure

CARB Compliant, 5/8" MDF Shallow Sub Enclosure Lined with Polyfil.

Your Price $34.99

Single 10" Sealed MDF Subwoofer Enclosure

10-inch Sealed Car Sub Box Made with 3/4" MDF and lined w/ Polyfil.

Your Price $34.99

Single 10" Ported Enclosure Custom Black Baffle

Durable 3/4" Medium Density Fiberboard (MDF) construction.

Your Price $54.99

25 ft. of Streetwires 12 Gauge Speaker Cable

You'll need speaker wire to hook up that new subwoofer!

Your Price $44.95

Belva 23 ft. of 12 Gauge Speaker Wire

Ultra-flexible PVC blended jacket for easy installation.

Your Price $14.99

20 Square Feet of Sound Dampening Material

NVX Sound dampening is thicker than competitors, eliminates rattles and gives you bigger bass!

Your Price $59.99

Dynamat Sound Dampening Trunk Kit

Did you know sound dampening will reduce those annoying rattles and even increase your SPL?

Your Price $109.95

Stinger Sound Dampening Trunk Kit

Stinger's Roadkill sound dampening series is sure to kill unwanted road noise and rattles! Enough sound dampening for your whole trunk!

Your Price $69.99

20 oz. Bag of Poly-Fil

Polyester fiber fiberfill adds better bass to your system.

Your Price $5.99

12 oz. Can of Adhesive Spray

Spray adhesive used for adhering carpet to subwoofer boxes without bubbles.

Your Price $6.99

Spring Post Terminal Cup

Makes adding a spring post terminal to an enclosure simple! Banana clip ready!

Your Price $3.99

Gold Plated Dual Terminal Banana Plug Connector

Enables an expandable, secure connection accepting up to 8 gauge wire.

Your Price $3.99

Car Stereo and Speaker Installation Tool Kit

Includes Test Light, Crimp/Splice Tool, Multi-bit Screwdriver and more.

Your Price $12.99

Cordless Multi-Functional Heat Tool Soldering Iron Kit

Continuous working lock allows you to work without holding down trigger.

Your Price $79.99

4 Ft of 1/4" Thick Black Heat Shrink Tubing

Provides abrasion resistance and added protection for your cables.

Your Price $3.99

2" Universal, Professional Heavy Duty Roller for Sound Damping/Dampening

Universal rubber roller to make it easy to install sound dampening.

Your Price $7.99

1mm All Purpose Solder

Solder is all purpose for use on most projects where solder is needed.

Your Price $8.99

Universal 10" Subwoofer Grille

Keep your subwoofer safe from accidental damages with this amazing grill.

Your Price $13.99

10" Protective Waffle Subwoofer Grille

Keep your subwoofer looking amazing while keeping it safe.

Your Price $4.99

Scosche SPL Meter

Monitor the noise level of your new car audio system with this SPL meter measuring from 60-135 dB.

Your Price $21.99

AutoSound 2000 CD-101

Low frequency test CD

Your Price $11.99

Impedance Meter / Signal Generator

Easy to locate tuning frequencies of passive radiators and ported enclosures

Your Price $299.99

1 Pioneer TS-SW251 Subwoofer

Mono Amp

2 Channel Amp - Bridged

2 Pioneer TS-SW251 Subwoofers

Mono Amp

2 Channel Amp

4 Channel Amp - Bridged

3 Pioneer TS-SW251 Subwoofers

4 Channel Amp

4 Pioneer TS-SW251 Subwoofers

Mono Amp

Mono Amp - Option 1

2 Channel Amp

2 Channel Amp - Bridged

4 Channel Amp

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Product Summary

Manufacturer

Model Number

TS-SW251

UPC

012562882055

Weight

10.00lbs

Internal SKU

tssw251

Internal Product ID

11097

Sonic Electronix Wiring Guide

Wiring Diagram Legend

Warning: The image depicted shows the resistance change when wiring multiple subwoofer terminals. Please refer to your subwoofer's owner's manual for the proper wiring of its terminals. Sonic Electronix, Inc. is not responsible for damage caused to your audio system or vehicle due to improper installation. Please call tech support at 1-877-289-7664 if you require additional assistance.

Product Name: Pioneer TS-SW251