Name: Alpine Bassline SWA-12S4
Brand: Alpine
SKU: swa12s4
Price: 54.99 USD
Availability: Discontinued
Rating: 4.7778 (18 reviews)

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Alpine Bassline SWA-12S4 Image 1 — Alpine Bassline SWA-12S4

Alpine Bassline SWA-12S4 Image 2 — Alpine Bassline SWA-12S4

Alpine Bassline SWA-12S4 Image 3 — Alpine Bassline SWA-12S4

Alpine Bassline SWA-12S4 Image 4 — Alpine Bassline SWA-12S4

Alpine Bassline SWA-12S4 Image 5 — Alpine Bassline SWA-12S4

Product videos

Product highlights

• 750W Peak
• 250W RMS
• Single 4 ohm Voice Coil
• Polypropylene & Mica Damped Cone
• High-Excursion Poly-Foam Surround
• High Strength Custom Steel Frame
• 2" Aluminum Steel Frame
• 8 Gauge Push Pin Terminals

Learn more about the swa12s4

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Product Highlights

Description

Authorized dealer

General Features:

12" Single 4 Ohm BASSLINE Series Subwoofer
Power Handling:

Peak: 750 watts
RMS: 250 watts

Recommended Power Range: 50 - 250 watts RMS
Polypropylene & mica damped cone with Progressive Wavelet Rib (PWR) design
High-excursion poly-foam surround
Polyester progressive spider
Two-piece yoke with vented pole for improved air flow and voice coil cooling
High strength custom steel frame
Optional Protective Grille available KTE-12PG
8 Gauge push pin terminals
2" Aluminum voice coil
60 oz. Single stacked magnet
Resonance Frequency (Fs): 30 Hz
Top-mount depth: 5-1/2"
Sensitivity: 87.6 dB
Authorized Internet Dealer
1-year Manufacturer's Warranty

Product history:

	Alpine W12S4 (newest, current model)
	Alpine Bassline SWA-12S4 (previous model, replaced by Alpine W12S4)

Subwoofer Wiring Guide

Wiring Guide to Wire 1 Alpine Bassline SWA-12S4 Subwoofer

Mono Amp

2 Channel Amp - Bridged

Wiring Guide to Wire 2 Alpine Bassline SWA-12S4 Subwoofers

Mono Amp

2 Channel Amp

4 Channel Amp - Bridged

Wiring Guide to Wire 3 Alpine Bassline SWA-12S4 Subwoofers

4 Channel Amp

Wiring Guide to Wire 4 Alpine Bassline SWA-12S4 Subwoofers

Mono Amp

Mono Amp - Option 1

2 Channel Amp

2 Channel Amp - Bridged

4 Channel Amp

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Specifications & Details

Subwoofer Specifications

Series

BassLine Series

Subwoofer Size

12"

Peak Power Handling

750 watts

RMS Power Handling

250 watts

Voice Coil(s)

Single

Impedance (Per Voice Coil)

4 ohm

Voice Coil Diameter

Frequency Response

22 - 200 Hz

Sensitivity

87.6 dB

Xmax (millimeters)

10 mm

Subwoofer Design

Round / Circle

Main Cone Color

Black

Woofer Composition

Polypropylene

Woofer Surround

Poly-Foam

Magnet Structure

Single Stacked

Subwoofer Grille

Re-Cone Kit Available

Recommended Enclosure Specifications

Recommended Enclosure Type

Ported / Vented
Sealed

Minimum Sealed Box Volume

0.75 cubic feet

Optimum Sealed Box Volume

1.09 cubic feet

Maximum Sealed Box Volume

1.5 cubic feet

Minimum Ported Box Volume

1.5 cubic feet

Optimum Ported Box Volume

1.91 cubic feet

Maximum Ported Box Volume

2.5 cubic feet

Top-Mount Depth (Mounting Depth)

5-1/2"

Cutout Diameter

10-9/16"

Shallow Mount Installation

T/S Parameters (Electromechanical)

Free-Air Resonance (Fs)

30 Hz

Equivalent Compliance (Vas)

67.8 liters

Total Speaker Q Value (Qts)

0.49

Electrical Q Value (Qes)

0.53

Electrical Resistance of Voice Coil (Re)

3.6 ohm

Mechanical Q Value (Qms)

7.07

Warranty and Return Policy

Parts Warranty Duration

1 year

Labor Warranty Duration

1 year

Warranty Provider

Manufacturer

Customer Ratings & Reviews

Alpine Bassline SWA-12S4 thumbnail image

Overall rating distribution

5 star		78%
4 star		22%
3 star		0%
2 star		0%
1 star		0%

Filter by Star Rating

Show only Verified Purchases

By feature average rating

Durability		4.8
Value		5
Features		4.9
Design		4.9
Usability		4.9

Customer Reviews

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great sub.

I have a dodge Dakota and I pit a single 12 in a bandpass box with 200 watts rms it hits hard enough to flex.thank you sonic.

By clown on July 4, 2014

53 found this helpful

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Alpine SWA - 12S4

This sub woofer is pretty loud and kicks pretty hard for something so cheap and affordable . Better than what I expected.

By Jaex on April 11, 2014

53 found this helpful

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Good Sub

This is a good sub. I would recommend it.Alpine has always been a good brand and for the price this is a really good sub. Haven't had any problems with it and you don't need a lot of power to get it to hit. If you want some good bass to round out your system this works.

By Yeti on January 20, 2014

50 found this helpful

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Great sub for price

Great sub for price really bumps on my 1000.2 autotek amp would recommend to any beginner or expert can't go wrong with alpine

By bryan on May 1, 2014

50 found this helpful

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good cheap loud bass filled woofer

Didnt pay much and this Lil pup rocks hard crisp clear clean. Bass

By polywogles on June 17, 2014

48 found this helpful

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best bang for your buck

i ordered 8 of these subs and they are amazing.. especially for the price... i would and always do business with sonic electronix and would highly recommend them for all that they sell...

By street dr3amz on November 14, 2014

46 found this helpful

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Thanks sonic!

When I first got this sub and hooked it up in my escalade ext it sounded real good nice hitting lows and clean hard bass I totally recommend this sub for everyone that like clear crisp bass.

By james on July 14, 2014

48 found this helpful

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Wow

Wow. Absolutely under rated. These in a 4^3 box ported to 32hz and they're louder than my single 15" l7 and 2 12" type R's in a ported box.

Very good sub for the price. would recommend to everyone.
they're windshield flexing a nissan altima.

By james on October 7, 2013

47 found this helpful

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pure bass

got 2 hooked up to 1000watt amp [500 each sub] and its flexing my windshield and the sound is insane wish i had more room for 2 more lol but by far best bang for your buck

By bass head on October 12, 2013

44 found this helpful

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Awesome Sub

Fantastic Sub, any sub in the right box will sound awesome, but this sub hits hard. Two of these in a 3.8cube box has change dancing in my cup holder. The only thing i dont like is the leads are not woven into the spider, but what do you expect for 55$? Recommend these to anyone.

By Wes on October 18, 2013

41 found this helpful

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See all 18 reviews

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