What's a component sub and why would I want one?

A component sub is simply a speaker that's designed to reproduce bass once it's installed in a compatible enclosure. Think about the impact of a movie soundtrack in a big theater or even in your own home HDTV setup. A component sub can add the same kind of power to the music in your car. And a car sub is not all about the boom that you hear on a street corner (although that's cool too) - you can pair a component sub with your choice of enclosure to get bass just the way you like it, from tight and punchy to fat and loose. And once you experience music in your car with a well-tuned subwoofer, you'll never go back.

Our take on the Pioneer TS-W2502D4

by Dominic Devito

Champion Series Pro subwoofers from Pioneer combine big-time power handling with rugged construction for competition-worthy bass that hits hard. They'll sound great in smaller sealed enclosures thanks to the unique Air Suspension System — it provides a spring-like effect to maintain clear, high-impact bass.

Unique suspension
Pioneer's Air Suspension System features a dual-cone structure — a main cone and surround at the top connected to an internal drive cone and surround beneath. This unique suspension system uses the air trapped in between to propel the main cone with outstanding accuracy and low distortion. The injection-molded polypropylene cones are reinforced with basalt and carbon fiber for outstanding strength and quick response, while the wide-roll, three-layer surrounds keep the cones on track and hitting hard during deep excursion.

Heavy-duty motor structure
A double-stacked 88-ounce magnet powers the motor structure in this competition-quality sub. A rugged die-cast aluminum basket anchors the sub, providing superior damping and increased magnetic efficiency for peak performance.

Serious power handling
The TS-W2502D4 10" sub handles 800 watts RMS for thunderously thumping low end. The dual 4-ohm voice coils allow you to set up a high-powered system with a compatible low-impedance amp. You can wire the sub for 2- or 8-ohm impedance — Pioneer makes it easy for you by putting the terminal connections for both voice coils on the same side of the sub.

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Highlights:

10" subwoofer with dual 4-ohm voice coils
IMPP cones reinforced with interlaced basalt and carbon fibers
3-layer urethane and fiber-woven radial surrounds
Air Suspension Control System eliminates traditional spider structure
die-cast aluminum basket
power range: 100-800 watts RMS (400 watts RMS per coil)
peak power handling: 3,000 watts
frequency response: 20-150 Hz
sensitivity: 89 dB
top-mount depth: 6-11/16"
sealed box volume: 0.35-0.7 cubic feet
ported box volume: 0.6-1.0 cubic feet
warranty: 1 year
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Features and specs chart | What’s in the box? | In-depth notes

Features and Specs


Size Loading...	10 -inch
Impedance Loading...	4 ohms
Cone Material Loading...	Basalt/Carbon Fiber IMPP
Surround Material Loading...	3-Layer Fiber Woven
Ideal Sealed Box Volume (cubic feet) Loading...	0.6
Ideal Ported Box Volume (cubic feet) Loading...	0.9
Port diameter (inches) Loading...	3
Port length (inches) Loading...	3.75
Free-Air Loading...	No
Dual Voice Coil Loading...	Yes
Sensitivity Loading...	89 dB at 1 watt
Frequency Response Loading...	20 - 150 Hz
RMS Power Range (Watts) Loading...	100-800
Peak Power Handling (Watts) Loading...	3000
Top Mount Depth (inches) Loading...	6 11/16
Bottom Mount Depth (inches) Loading...	N/A
Cutout Diameter or Length (inches) Loading...	9 3/8
Vas (liters) Loading...	6.77
Fs (Hz) Loading...	36
Qts Loading...	0.74
Xmax (millimeters) Loading...	9.8
Parts Warranty Loading...	1 Year
Labor Warranty Loading...	1 Year

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What's in the box?

Download owner's manual

One 10" woofer
6 Self-tapping screws (5mm x 35mm)
Self adhesive foam gasket
Manual (English/ Spanish/ French)
Warranty information
Template on box flap

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Features
Specifications

Features

Woofer: The TS-W2502D4 has an interlaced Basalt/Carbon fiber reinforced IMPP (Injection Molded Polypropylene) composite cone. This cone design is lightweight and rigid, resulting in clean, powerful bass response.

Cast Aluminum Basket: The one-piece cast aluminum basket assembly holds the motor assembly, cone, and magnet structure securely in place. The benefits of this design include reduced internal stress, superior damping, and increased magnetic efficiency.

Air Suspension System: Rather than using a standard spider to control cone movement, Pioneer created an Air Suspension system; using two cones with a sealed air space between them. The air locked between the main and drive cones creates a spring-like effect between them moving in unison. The dual cone structure maintains better linearity, resulting in consistently clear, powerful, wide ranging bass response.

3-Layer Urethane Surround: The surround uses two layers of urethane with a layer of interwoven fiber between them to add strength and stability and reduce cone distortion.

Dual Voice Coils: For increased system flexibility, the woofer has two 4Ω voice coils. The two sets of spring compression binding post terminals are side-by-side for easy wiring. Each post will accept a pin connector, a single banana plug, or bare wire up to 10 gauge. The two voice coils can be wired in series to present an 8Ω load or in parallel to present a 2Ω load. Additionally, each coil can be connected to a different amplifier channel and each channel will see a 4Ω load.

Dual Mass Magnet: The TS-W2502D4 uses a Dual Mass Magnet assembly (weighing in at 88 ounces) to create a powerful magnetic force. This increases the control exerted over the voice coil and the power transferred to the cone.

Specifications

Sealed Box Volume: The sealed box sizes recommended by Pioneer range from 0.35 ft³ to 0.7 ft³; within this range the ideal size is 0.6 ft³.

Vented Box Volume: The vented box sizes recommended by Pioneer range from 0.6 ft³ to 1.2 ft³; within this range the ideal size is 0.9 ft³. The ideal port size for a 0.9 ft³ enclosure is 3" diameter x 3.75" long.

Single Reflex Bandpass Volume: The bandpass box sizes recommended by Pioneer range from 0.6 ft³ per chamber to 1.0 ft³ per chamber; within this range the ideal size is 0.8 ft³ per chamber. One 3" diameter x 8" long port should be used in an enclosure with 0.8 ft³ chambers.

Power Handling: The woofer has two 4Ω voice coils; each coil can handle up to 400 watts RMS (800 watts total).