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Alpine SPS-406

4" x 6" Type-S Series 2-way Speakers

  • 4.4

(26 reviews)

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Price Information

$89.99

–$30.04

$59.95

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Customer Testimonial

We had a great experience dealing with Sonic Electronix. Fantastic deal on our stereo and the included dash kit and harness made it even better! Thanks a ton.

- Ashley from North Vancouver, Canada

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  • 4" x 6" Type S Series Car Speakers
  • Power Handling:
    • Peak: 280 watts per set / 140 watts each side
    • RMS: 90 watts per set / 45 watts each side
  • Poly-mica cone woofer
  • Rubber surround
  • 3/4" Silk dome tweeter
  • Optimized air-flow design
  • Stamped steel basket frame
  • Affordable premium quality upgrade to your factory audio system
  • Great power-efficient speakers
  • Swivel-mount tweeter
  • 4 ohms impedance
  • Square-wire short voice coil
  • Low distortion strontium magnet
  • Top-mount depth: 1-21/32"
  • 1-year SonicElectronix.com warranty

Alpine products are warranted solely by Sonic Electronix, Inc. under the same period and terms as the original Alpine warranty. Sonic Electronix is not an Authorized Alpine Dealer and Alpine requires all merchandise purchased by Sonic Electronix customers to be returned solely to Sonic Electronix. Alpine products are also covered by our Standard Return Policy for returns on exchanges or refunds within 30 days from the date of purchase.

Priced Per Pair

Product History:

Alpine SPS-406 thumbnail
(newest, current model)
Alpine SPS-46C2 thumbnail
(previous model, replaced by Alpine SPS-406)
Speaker Specifications
Speaker Size 4" x 6"
Design 2-way
Tweeter Design Dome
Tweeter Composition Silk
Woofer Composition Polymer/Mica Composite
Woofer Surround Rubber
Peak Power Handling 140 watts
RMS Power Handling 45 watts
Sensitivity 87 dB
Frequency Response 93 - 22000 Hz
Impedance (Per Voice Coil) 4 ohms
Shallow Mount Installation Yes
Top-Mount Depth 1-21/32"
Cutout Dimensions 3-3/8" x 3-3/8" 
Speaker Grilles No
Warranty and Return Policy
Return Policy Standard Return Policy
Parts Warranty Duration 1 year
Labor Warranty Duration 1 year
Warranty Provider Sonic Electronix
Customer Review Summary for Alpine SPS-406
Average Customer Rating is 4.4 out of 5 stars:
  • 4.4
based on 26 Reviews
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Rating Distribution:
Average Attributes Rating:
Durability
  • 4.6
4.6
Value
  • 4.5
4.5
Features
  • 4.4
4.4
Design
  • 4.6
4.6
Usability
  • 4.6
4.6
what's this?
Quick Comparison:
Most Helpful Customer Reviews:
June 14, 2010 type s 4x6s
4 of 4 people found the following review helpful:
Review by
Bernie J from ON, Canada
Overall
  • 5.0
Durability
  • 5.0
Value
  • 5.0
Features
  • 5.0
Design
  • 4.0
Usability
  • 5.0
These speakers perform really well considering their price plus they fit in the doors of my cavalier perfectly with the plastic baffles provided. They rattle my doors with only my deck for power. First time I bought Alpine and I must say that I am impressed. You can't go wrong with these.
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October 4, 2009 Excellent Deal!
2 of 2 people found the following review helpful:
Review by
Paul from Spring Lake, MI
Overall
  • 4.0
Durability
  • 4.0
Value
  • 5.0
Features
  • 4.0
Design
  • 4.0
Usability
  • 4.0
Received the speakers quickly and installed them in a classic Ford Mach 1. Speakers sound pretty good, could use more base but I think that is because they're only being powered off a sony deck. Overall, very happy with my purchase.
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March 6, 2013 great
Review by
paul from OH
Overall
  • 5.0
Durability
  • 5.0
Value
  • 5.0
Features
  • 5.0
Design
  • 5.0
Usability
  • 5.0
pros

has great frequency response

has the lows, mids, and highs balanced

made from great materials

sounds better than any other brand of 4x6 speakers
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September 14, 2012 They Make Popping noises
Review by
BassFace from Middleton, ID
Overall
  • 2.0
Durability
  • 1.0
Value
  • 2.0
Features
  • 2.0
Design
  • 3.0
Usability
  • 3.0
Second day I had these speakers they started making popping noises. Both of them are in my front doors powered the head unit. Besides the popping noise they aren't very loud. I listen to a lot of dub and these speakers just don't handle it very well. My only advise would be spend a little more money and buy nicer Alpines.
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August 5, 2012 great speaker and great sound,
Review by
tallguyjay from laurel, ms
Overall
  • 5.0
Durability
  • 5.0
Value
  • 5.0
Features
  • 5.0
Design
  • 5.0
Usability
  • 5.0
These speakers are great for the price, I've had them for a few months now, I've had absolutely no problems with them, which Alpine is a great brand anyways, but if your looking for good sound for a decent price. I really recommend these.
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View All 26 Reviews for Alpine SPS-406
Speaker Wire
Upgrade your factory speaker wire to aftermarket speaker wire and hear the difference! Using thicker gauges, newer technology, and higher quality materials, aftermarket speaker wire is key to upgrading the sound in your car.
  Product Price Add?
20 ft. of 16 AWG KICKER X-Series Speaker Wire 20 ft. of 16 AWG KICKER X-Series Speaker Wire
Get high quality sound from Kicker's twisted-pair, true to gauge speaker wire.
$17.95
50 ft. of 14 AWG StreetWires Speaker Cable 50 ft. of 14 AWG StreetWires Speaker Cable
Streetwires Super Cable provides a zero-grip insulation for a smooth install as well as true gauge twisted wire construction.
$39.99
Sound Dampening Material
Get optimal sound from your new speakers with some high quality sound dampening material. It will keep the road noise out and the music inside the car.
  Product Price Add?
NVX SDSK2 Speaker Kit NVX SDSK2 Speaker Kit
Eliminates speaker panel distortion and reduces vibration, rattles, and squeaks!
$14.99
NVX SDRLR1 Sound Dampening Rubber Roller NVX SDRLR1 Sound Dampening Rubber Roller
Install your Sound Dampening with ease! This heavy duty rubber roller is designed specifically to install your NVX products!
$8.95
Installation, Tools & Accessories
Get all of the tools and accessories to install your new speakers like a professional, or take your car to an expert and have them installed by redeeming professional installation cards.
  Product Price Add?
Car Stereo and Speaker Installation Tool Kit Car Stereo and Speaker Installation Tool Kit
Includes Test Light, Crimp/Splice Tool, Multi-bit Screwdriver and more.
$14.99
Door Panel & Upholstery Remover Tool Door Panel & Upholstery Remover Tool
The ideal tool for removing your car's door panels to replace you speakers!
$11.99
Universal Window Handle Remover Tool Universal Window Handle Remover Tool
Designed to easily remove the manual window handles without breaking any interior pieces.
$11.99
Universal Wire Puller & Grabber Universal Wire Puller & Grabber
Running wires has never been easier! This wire puller allows you to run wires through those hard to reach places!
$8.99
22-18 AWG Butt Connectors 22-18 AWG Butt Connectors
These red butt connectors are perfect for connecting the speaker wire when replacing your factory speakers!
$4.99
16-14 AWG Butt Connectors 16-14 AWG Butt Connectors
These blue butt connectors are ideal when connecting thicker speaker wire your new aftermarket speakers!
$4.99
Tone Generators and Sound Testing Equipment
Optimize your new system's sound quality by testing and calibrating all of your components with these items.
  Product Price Add?
Scosche SPL Meter Scosche SPL Meter
Monitor the noise level of your new car audio system with this SPL meter measuring from 60-135 dB.
$24.99
AutoSound 2000 CD-101 AutoSound 2000 CD-101
Low frequency test CD
$12.99
AutoSound 2000 CD-102 AutoSound 2000 CD-102
High frequency test CD specifically designed for the set-up and evaluation of sound system imaging and placement.
$12.99
AutoSound 2000 CD-103 AutoSound 2000 CD-103
Audiophile reference series test disc for evaluation of all audio components.
$12.99
Main Product
  Product Price Add?
Alpine SPS-406 Alpine SPS-406 $59.95

Product Summary

Manufacturer: Alpine
Model number: SPS-406
UPC: 793276601384
Weight: 4.50 lbs
Internal SKU: sps406
Internal product ID: 11570