Pioneer designed the Champion Series PRO dual voice coil subwoofers to produce enormously powerful music. Just take a look at the super-heavy-duty construction, designed to handle up to 3,000 watts max. Double-stacked magnets make for higher power, and step-up radial surrounds provide superior control during long excursions. A cast-aluminum basket was built from scratch for these subwoofers and once you add in the patented IMPP cone, you've got a monster sub that can handle whatever you want to throw at it.
The TS-W2502D4 works well in extremely small sealed enclosures with as little as 0.35 cubic feet of volume, but can also be used in larger sealed, ported, and bandpass subwoofer enclosures as well.
Air Suspension System
For their revolutionary Champion Series PRO subwoofers, Pioneer created an air suspension system that locks in air for a spring-like effect between the unique two-cone structure to keep them moving in unison without the need for a traditional spider. The result is consistently clear, powerful, wide ranging bass response. The subwoofer's dual cone structure maintains better sound linearity and reliability after hours of hard use, when compared to conventional subwoofers with spiders.
Double-Stack Magnet with Double-Stack Top Plate
To produce the tremendous magnetic energy needed for this line of subwoofers, Pioneer employed double-stacked magnets, weighing a combined 88 oz., and a double-stacked top plate above them. This design ensures positive, powerful control of the voice coil during those long excursions, allowing for a high maximum SPL potential.
Wide-Roll 3-Layer Fiber Radial Surround
A subwoofer's surround plays a key role in a speaker's performance. In order for bass response to be clear and tight, the surround has to respond evenly around its entire circumference without flexing or puckering, even at high volume levels. That's why Pioneer created a surround consisting of two layers of urethane with a layer of interwoven fiber between them. It's strong, stable, and it reduces distortion. In addition, the wider-than-normal design provides a long, linear excursion for excellent control and heavy-duty durability.
Interlaced Basalt/Carbon Fiber Reinforced IMPP Cone
To ensure that you get more natural bass, Pioneer created a new Basalt-fiber technology for the PRO subwoofer cones. The volcanic-rock fibers create a cone that is lightweight, rigid, well damped, stable in temperature extremes, and more environmentally friendly. In short, this bass really rocks.
Cast Aluminum Basket
Designed from scratch by Pioneer, this one-piece aluminum basket assembly holds the motor assembly, cone, and magnet structure securely in place. The benefits of this design: reduced internal stress, superior damping, and increased magnetic efficiency.
Dual Voice Coil Design
The dual 4Ω voice coil design gives the TS-W2502D4 the flexibility to be wired for a 2Ω, stereo 4Ω, or 8Ω impedance to get the most out of your amplifier. To simplify installation even further, all speaker terminals have been placed on one side of the subwoofer rather than on opposite sides.
Also available with dual 2Ω voice coils. Includes six self-tapping 5 mm diameter by 35 mm long mounting screws and a adhesive-backed foam mounting gasket.
Specifications below are with voice coils wired in parallel.