bass tubes are always vented....not seen a sealed bass tube as yet.

How big of a amp can i use

You really want to use no more than 500 watts RMS (avoid all the peak recommendations) Alpine makes a 500x1 that is perfect.

Is it Bluetooth capable?

No its not, this is just a speaker only, if you want to make this into a bluetooth capable device pair it with an amplifier that has bluetooth, this speaker can handle upto 1200 watts of power get an amp thats capable of driving the sub.

What is the shell covered in? carpet?

black carpet similar to factory texture

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Description

🎶 Feel the Pulse, Own the Room with Alpine Bass Power!

BUILT TO LAST - Heavy-duty grill and sturdy installation brackets guarantee durability and a sleek Alpine aesthetic.
COMPACT YET MIGHTY - Tabletop mount with a lightweight 500g design fits perfectly in any setup without compromise.
POWER THAT MOVES YOU - Unleash thunderous 1000W peak power for immersive sound that commands attention.
SEAMLESS INTEGRATION - 4Ω impedance and Bluetooth compatibility ensure effortless pairing with your sound system.
PRECISION BASS ENGINEERING - 12-inch bass reflex design delivers crystal-clear, deep low frequencies from 28Hz to 200Hz.

The Alpine SWT-12S4 is a 12-inch bass reflex subwoofer tube delivering up to 1000W peak power and 300W RMS, designed for deep, precise bass from 28 to 200Hz. Featuring a 4Ω impedance, Bluetooth connectivity, and rugged construction with included mounting hardware, it’s engineered for seamless integration into automotive or personal audio setups, combining powerful performance with compact, durable design.

Specifications

Mounting type	Tabletop
Material	Plastic
Model name	SWT-12S4
Speaker type	Subwoofer
Special features	Für Auto
Recommended uses for product	For Music Players, For Surround Sound Systems
Compatible devices	Personal Computer
Subwoofer diameter	12 Inches
Surround sound channel configuration	1.0
Colour	Black
Included components	Alpine SWT-12S4 Subwoofer
Product dimensions	160D x 40W x 90H millimeters
Item weight	500 Grams
Impedance	4
Is waterproof	True
Warranty type	Limited
Number of Items	1
Control method	Remote
Wireless communication technologies	Bluetooth
Speaker size	12 Inches
Power source	Corded Electric
Manufacturer	Alpine
Item model number	SWT-12S4
Manufacturer Part Number	SWT-12S4
Special Features	Für Auto
Wattage	1000 watts
Item Weight	500 g

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