Pioneer A-Series 10” Dual 4 Ohm Voice Coil Subwoofer (TSA250D4)

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PioneerSKU: TSA250D4

Sale price $128.00 Regular price$169.99

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Pioneer TS-A250D4  A-series sound design purposely matches the subwoofer and full-range loudspeakers to provide seamless and smooth sound characteristics with dynamic, high impact bass that lets you hear and feel the music.

Linear, Balanced Motion

Linear, balanced motion in both the forward and reverse directions of cone movement is critical to accurate reproduction of recorded sound waves. Careful engineering of the entire motor structure and suspension system (voice coil, magnet, surround and spider) is required maintain a high level of linearity, even during high output / high excursion transients.

CarSoundFit App

Pioneer TS-A100D4 Pioneer’s CarSoundFit app is actually a car sound simulator for experiencing in-car sound with your own smartphone. Hear the difference between original car speakers and different Pioneer audio upgrades: convince yourself of the level of quality Pioneer can offer for your vehicle. For a virtual listening demonstration of these and many other Pioneer car speakers, download the free Pioneer CarSoundFit app.

Dual 4Ω Voice Coils

This Pioneer TS-A100D4 woofer features two 4Ω voice coils, offering wiring flexibility. When the voice coils are wired in parallel, the woofer presents a 2Ω load; when wired in series, the woofer presents an 8Ω load.

Sealed Box Volume

Pioneer recommends a sealed enclosure with an internal volume between 0.5 ft³ and 0.8 ft³, with an ideal volume of 0.7 ft³. Sealed enclosures provide the most control over the woofer, will handle a lot of power, and provide accurate sonic reproduction, making them suitable to all types of music.

Ported Box Volume

The recommended ported box volume ranges from 0.5 ft³ to 0.8 ft³, with the ideal size being 0.7 ft³, using a single 2″ diameter x 5″ long port. Ported (or vented) enclosures typically provide better overall efficiency than sealed, maximizing bass output for a given amplifier.


– Size: 10 -inch
– Impedance: 2 ohms or 8 ohms
– Cone Material: Glass Fiber and Mica Reinforce
– Surround Material: Butyl Rubber
– Ideal Sealed Box Volume (cubic feet): 0.7
– Ideal Ported Box Volume (cubic feet): 0.7
– Port diameter (inches): 2
– Port length (inches): 5
– Dual Voice Coil: Yes
– Sensitivity: 74 dB at 1 watt
– Frequency Response: 20 – 2000 Hz
– Max RMS Power Handling: 400
– Peak Power Handling (Watts): 1300
– Top Mount Depth (inches): 5 1/4
– Cutout Diameter or Length (inches): 9
– Vas (liters): 36.6
– Fs (Hz): 30
– Qts: 0.59
– Xmax (millimeters): 10.8

Car Subwoofer Size


RMS Power

201 to 400 Watts

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