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Alpine SPS-406

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

Alpine
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• Peak Power: 140W
• RMS Power: 45W
• Poly-mica cone woofer
• Rubber surround
• 3/4" Silk dome tweeter
• Optimized air-flow design
• Affordable premium quality upgrade to your factory audio system

Learn more about the sps406

We apologize

This item has been discontinued

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Description


Alpine brand icon

Authorized dealer

  • 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 ohm 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)

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Specifications & Details


Speaker Specifications
Series
S Series
Priced Per
Pair
Speaker Size
4" x 6"
Design
2-way Coaxial
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 ohm
Shallow Mount Installation
Yes
Top-Mount Depth (Mounting Depth)
1-21/32"
Cutout Dimensions
3-3/8" x 3-3/8" 
General specifications
Speaker Grilles
No
Warranty and Return Policy
Parts Warranty Duration
1 year
Labor Warranty Duration
1 year
Warranty Provider
Sonic Electronix

Item Details


Manufacturer:

Model Number:

SPS-406

Weight:

4.50lbs

Internal SKU:

sps406

Internal Product ID:

11570

Customer Ratings & Reviews


Alpine SPS-406 thumbnail image

5 star
64%
4 star
25%
3 star
4%
2 star
4%
1 star
4%



Durability
4.6
Value
4.6
Features
4.4
Design
4.7
Usability
4.6

Customer Reviews

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Great Value

I installed the Alpine SPS-406 model speakers in my girlfriends truck and they sound great. The sound quality is awesome, there is a hint of bass, but a good overall sound. The speakers look nice and clean, and don't look just thrown into the spaces. I am pleased with this purchase and recommend them

By Thaddeus on June 17, 2011

55 found this helpful


Excellent Deal!

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.

By Paul on October 4, 2009

55 found this helpful


Great Speakers!!!

These speakers are amazing!! Glad i got them. The clairty is unbelievable (with or w/o amp)! I bought them two days ago and just got them today i was suprised, very happy. I love sonic so much!!

By Jared on August 26, 2011

53 found this helpful


type s 4x6s

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.

By Bernie J on June 14, 2010

53 found this helpful


randy wilkerson

These speakers are amaaaazzziiiinnggg. I love em they get really loud.

By randy on April 6, 2011

52 found this helpful


Low price and easy installation

I bought these for my 2000 Olds Alero and they were easy to install and sound great!

By Racer21 on July 16, 2012

50 found this helpful


not a good speaker at all

Bought the alpine sps-406 from Sonic. Shipping was very fast. I installed them the very next day. The speakers sounded okay but after 10 hrs of playing trying to break them in, i raised up the volume and they sounded horrible. My stock speakers sounded way better than these alpines. I don't understand the big hype on these speakers. I don't get why so many good reviews. I should have saved my money. Good thing i didn't buy them for 69.99 or i would have been mad. The only good thing about the speakers is the look and the design.

By mum-ra on March 10, 2012

50 found this helpful


OK Value

Sound OK, can't handle much power and distort rather easily, but sound great at lower power/volumes. Small speaker so what do you expect.

By Rob on June 14, 2012

49 found this helpful


Amazing Sound Quality

I installed these in the dash of my 02 blazer and even with 2 JLw6 12s in the back I can still hear my music with great clarity and they aren't even amplified. I would definitely suggest them to a friend!

By L1VEEV1L on February 26, 2012

49 found this helpful


great speaker and great sound,

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.

By tallguyjay on August 5, 2012

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