About the Alpine SWT-10S4
Right size, right sound

Right size, right sound
Here's a big bass breakthrough for truck lovers. Alpine engineered their SWT-10S4 10" subwoofer to go behind your seat, and sound especially good in the limited space of a truck cab. This deep-sounding, high-performance sub works well in shallow enclosures that'll fit behind or under the seat in your truck. A "high amplitude" surround allows more cone travel than a regular sub, so the SWT-10S4 can push more air and play louder.
Airflow ensured
Subs get hot as they play, and the heat usually gets vented away via a port in the back of the sub's pole piece. Alpine recessed the pole port and added cooling air vents on the sides of the frame, allowing you to use an enclosure with an inside clearance of as little as 4-3/16" without blocking critical air flow. An SWT-10S4 will work well in either a ported or a sealed box, so you can get your favorite kind of bass tone, boomy or tight.
The power it takes
For top performance, you'll want to pick an amplifier that delivers between 300 and 500 watts RMS at 4 ohms. This single voice coil, 4-ohm sub will draw the maximum output power from a subwoofer amplifier when used along with a second SWT-10S4 in a system. If you're planning on running a pair, look for an amp that delivers between 600 and 1000 watts RMS at 2 ohms.
Highlights:
- 10" truck subwoofer with 4-ohm voice coil
- Kevlar reinforced pulp cone with polyurethane foam surround
- power handling: 350 watts RMS (1000 watts peak)
- frequency response: 30-200 Hz
- mounting depth: 4-3/16"
- grille not included
- warranty: 1 year
- Our 60-day money-back guarantee
- MFR # SWT-10S4
What's in the box:
Alpine SWT-10S4 owner's manual
- 10" Thin-mount subwoofer
- Rubber trim-ring (installed)
- Application Guide
- On-line product registration information (English/ French/ Spanish)
- Warranty information (English/ French)
- Important Notice! (English/ French)
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More details on the Alpine SWT-10S4

Features & specs
Size | 10 -inch | |
Impedance | 4 ohms | |
Cone Material | Pulp-Kevlar | |
Surround Material | Polyurethane Foam | |
Ideal Sealed Box Volume (cubic feet) | 0.47 | |
Ideal Ported Box Volume (cubic feet) | 1.04 | |
Port diameter (inches) | N/A | |
Port length (inches) | N/A | |
Free-Air | No | |
Dual Voice Coil | No | |
Sensitivity |
85.1 dB at 1 watt | |
Frequency Response | 30 - 200 Hz | |
Max RMS Power Handling | 350 | |
Peak Power Handling (Watts) | 1000 | |
Top Mount Depth (inches) | 4 3/16 | |
Bottom Mount Depth (inches) | N/A | |
Cutout Diameter or Length (inches) | 8 7/8 | |
Vas (liters) | 38.3 | |
Fs (Hz) | 30 | |
Qts | 0.46 | |
Xmax (millimeters) | 11 | |
Parts Warranty | 1 Year | |
Labor Warranty | 1 Year |
Product Research
Features
HAMR Surround: The High-Amplitude Multi Roll (HAMR) Surround Design allows for extreme excursions without sacrificing valuable cone area.
Speaker Terminals: The spring post terminals will accommodate single banana plugs or bare wire up to 8-gauge.
Gasket Cover: Alpine uses a Concealed Mount Gasket System to cover the mounting screws for a clean look. The black rubber gasket ring comes already installed on the woofer and needs to be removed before drilling the mounting screws (not supplied). The gasket ring then snaps back into place once the woofer is mounted.
Recommended Sealed Box Volume: The recommended sealed box sizes range from 0.35 ft³ to 0.82 ft³. Within this range, the ideal size is 0.47 ft³.
Recommended Vented Box Volume: The recommended vented box sizes range from 0.75 ft³ to 1.27 ft³. Within this range, the ideal size is 1.24 ft³. A slot port with the following dimensions should be used: 10" (wide) x 1" (tall) x 20" (long).
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