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Alpine SPX-17REF

6-1/2" 2-way Type-X Series Component System

Discontinued
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Alpine SPX-17REF

6-1/2" 2-way Type-X Series Component System

$199.99

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NVX SDDK12 Door Kit

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$47.99

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  • 6-1/2" Type X Series Component System
  • FREE Speaker Adapters Included: 6-3/4" and 5" x 7" adapters included.
  • Power Handling:
    • Peak: 450 watts per set / 225 watts each side
    • RMS: 150 watts per set / 75 watts each side
  • Cross-rib aluminum cone
  • (NBR) Nitrile Butadiene Rubber surround
  • 1" Dome tweeter
  • Cast aluminum frame
  • Multiple crossover tuning options with minimum phase shift
  • 4 ohms impedance
  • Thermal transfer crossover chassis design
  • Heat sink resistors
  • Heavy gauge air core inductors
  • Metalized poly capacitors
  • 4-Level tweeter adjustment
  • Tweeter protection
  • Gold plated insert with tab
  • Secure one-snap cover
  • 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 Complete Component System: 2 midwoofers, 2 tweeters and 2 crossover networks.

Product History:

Alpine SPX-17REF thumbnail
(newest, current model)
Alpine SPX-177R thumbnail
(previous model, replaced by Alpine SPX-17REF)

Speaker Specifications

Series
This is the manufacturer product line of speakers.
Priced Per
Car Speakers are typically sold in pairs so you will receive 2 speakers for each speaker purchase on speakers marked "Priced Per Pair". If a speaker is marked "Priced Per Each" then the speaker is sold individually and each purchase you make will result in 1 speaker. High-powered tweeters, midrange and full-range pro audio for car speakers are typically sold per each speaker.
Speaker Size
Refers to the size of the speaker measured in inches. Every vehicle has standard application sizes. Please use our vehicle fitment guide for your vehicle's specific speaker sizes if you do not know them.
6-1/2"
Design
The number of individual drivers in a car speaker. Speakers with 2 drivers are known as a 2-way, and 3 drivers are known as a 3-way. Component systems are often referred to as "separates" because the tweeter is not attached to the midwoofer (main speaker driver) and mounts separately in a location such as a door post. Component systems typically come with an external crossover so you can easily adjust the high and low frequencies sent to both the midwoofer and the tweeter. Center channel speakers are great for those looking to have surround sound in their vehicle.
2-way Component System
Tweeter Design
Designs such as cone, dome, semi-dome, balanced dome, and whizzer are most popular. Cone tweeters are simple, efficient and typically are the most reasonably priced. Dome tweeters are used in most home speakers, and provide a smoother and more accurate sound. Semi-dome design is one with a dome placed inside a cone. A Balanced dome driver is a semi-dome with equal reproduction area given the cone and dome portions of the driver. A whizzer tweeter is a separate tweeter cone driven by the voice coil of the woofer.
Dome
Tweeter Size
Refers to the size of the tweeter. Typically, smaller tweeters produces less output with higher frequency response.
Tweeter Composition
Materials such as polypropylene, silk, cloth, and paper are the most common, where as many more recent tweeters are now manufactured with composites such as Aluminum, Titanium, Mylar, and other materials.

PEI is an acronym for "Polyetherimide" which is an amorphous, amber transparent, high-performance thermoplastic.

Not Specified
Woofer Composition
Lightweight woofer cone materials are essential for efficient operation. Poly cones produce exceptional sound and are sturdy against various changes in temperature. Paper cones are very efficient, and when treated for moisture resistance, will perform at a high level. Poly refers to polypropylene, which is thermoplastic or fibers that are polymers of propylene. IMPP refers to injection molded polypropylene, a commonly used process and material in speakers.
Aluminum
Woofer Surround
A speakers surround is part of the suspension system. The surround protects the cone and prevents it from being displaced as it flexes out from the basket. It is usually made of a durable material like treated foam or rubber in order to withstand the strenuous job of producing bass frequencies.
Nitrile Butadiene Rubber (NBR)
Peak Power Handling
Peak power handling refers to the amount of power a speaker can handle during a brief musical burst. The RMS power range figure is a much more reliable rating for determining the speaker's power requirements. The Peak power handling specification is typically rated per speaker unless otherwise noted.
225 watts
RMS Power Handling
The RMS power is the amount of power the speaker requires to operate safely and properly. RMS Power Handling refers to the amount of power a speaker can handle on a continuous basis. We recommend powering your speakers or subwoofer with 80%-120% of its recommended RMS rating. The RMS power handling specification is typically rated per speaker unless otherwise noted.
75 watts
Sensitivity
An efficiency or sensitivity rating tells you how effectively a speaker converts power into sound. The higher the number, the more efficient the speaker and the louder it will play with the same input power. An efficient speaker helps you maximize your available power. Most sensitivity ratings measure the speaker's output with 1 watt of input, 1 meter from the speaker. Some speakers' sensitivity is measured with 2.83 volts of input, instead of 1 watt.
 
Efficiency (1w/1m) is not an accurate indicator of a subwoofer's output capability and should not be used as a comparison to other speakers or subwoofers to determine which one is "louder".
90 dB
Frequency Response
The range of frequencies the speaker will reproduce (lowest frequency to the highest). Bigger is better, meaning the wider the range, the better. The optimal range is 20 - 20,000 Hz (which is the range of human hearing).
35 - 40000 Hz
Impedance (Per Voice Coil)
The load value (in ohms) that the speakers present to the amplifier per voice coil - the amount of resistance to the current flow. This is a key specification as subs wired in parallel or low impedances can create problems with your amplifier and potentially void all warranties. We encourage you to ask our support department prior to purchase if you do not understand which impedance level will suit your application best.
4 ohms
Shallow Mount Installation
This means that the subwoofer/speaker is designed to be installed in areas that do not have a lot of space. Shallow mount subwoofers are typically found under a seat or behind the seat in some trucks.

Shallow mount speakers will typically have a mounting depth of 2" or less, while shallow mount subwoofers will typically have a mounting depth of 3" or less.

Cutout Dimensions
Refers to the dimensions of the hole, measured in inches, required to contain the speaker.
Hi-Res Audio Compatible
This feature refers to if the product is capable of Hi-Res Audio (HRA) playback.
Speaker Grilles
A grating or screen of metal or plastic bars or wires, mounted in front of a speaker as protection. If yes, the speakers will include matching speaker grilles. If no, there are no grilles included.
Number of Speakers
This is the number of speaker that is included in the package. Each purchase will result in receiving the number of speakers indicated here. Please note that some items will have multiple woofers in the same enclosure. For sets of component speakers, this number will refer to the number of sets of speakers (For example, 2 would indicate the purchase includes 2 woofers and 2 tweeters).

Please refer to the product image and description for further details about the speaker.

Specials with this Item

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Warranty and Return Policy

Parts Warranty Duration
1 year
Labor Warranty Duration
1 year
Warranty Provider
Sonic Electronix

Summary of Customer Ratings & Reviews

Rating Distribution

5 Star
59%
4 Star
35%
3 Star
6%
2 Star
0%
1 Star
0%

Average Attribution Rating

Durability
4.4
Value
4.6
Features
4.4
Design
4.5
Usability
4.2
Tom

sylvania, OH

Overall
Durability
Value
Features
Design
Usability
Sound was good until they blew

June 25, 2011

These components sound great when powered properly. The tweets deliver crisp detail. Mids lack bass but hey that's what subs are for. Looks are overall good. Only bad thing is they blew after only about a couple months worth of use

22 of 25 found this helpful

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Calstar Kid

Costa Mesa, Ca.

Overall
Durability
Value
Features
Design
Usability
Kicks A**

November 11, 2009

Very nice speakers..Lots of bass for there size and very clear and crisp sounds...

20 of 24 found this helpful

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Bee

Phoenix, Arizona

Overall
Durability
Value
Features
Design
Usability
Alpine Type X

October 28, 2010

I didn't like the sound and the quality compared to the MB Quarts they sound flat and didn't last long.

18 of 21 found this helpful

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markjoe

Australia

Overall
Durability
Value
Features
Design
Usability
SPX 17REF

March 21, 2009

excellent speakers at a great price

19 of 23 found this helpful

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Blake

Canada

Overall
Durability
Value
Features
Design
Usability
Great!

November 30, 2010

Very good speakers! Exceptional clarity! No distortion, even at very high volumes! No complaints, highly recommended.

18 of 22 found this helpful

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josh

baton rouge, la

Overall
Durability
Value
Features
Design
Usability
alpine

April 26, 2010

Nice bass. Good range. Good price.

17 of 22 found this helpful

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ALF

taylorsville, UT

Overall
Durability
Value
Features
Design
Usability
Sound Great

January 24, 2011

These sound Awesome! I have them installed in the front doors of my GMC crew cab along with a Alpine Head Unit and two RE 10's. They have very little bass response but thats fine for me with my 10's. Highs and mids are very clear with 75 watts going to them.

My only complaint is the tweeter mounting...It took up the most of my install time, what comes in the box is almost useless. These are not for the novice installer be prepared to fab a bit.

15 of 19 found this helpful

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Thad

Canyon, TX

Overall
Durability
Value
Features
Design
Usability
sound great

November 7, 2010

highs are high like they should be and they sound amazing compared to the stock speakers in my car, have the HPF set at 80hz tho because the extreme lows didnt sound that great

14 of 17 found this helpful

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Todd

Canada

Overall
Durability
Value
Features
Design
Usability
Very nice

May 30, 2010

Great sound from these component speakers. I put them in my GMC Sierra along with a pair of SPR-13C speakers in the back and 2 Pioneer low profile subs. Sound is awesome but I used a 600W Alpine amp to drive these speakers and blew one of the tweets. I like it loud and clear, not noisy. Definitely clear. Great recordings sound great. Bad sound really bad. They are a great deal if you're from Canada like me (triple the cost here) so I totally love them for the price.

14 of 17 found this helpful

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Jewlz

Canada

Overall
Durability
Value
Features
Design
Usability
Excellent Quality Sound

February 22, 2009

Super happy with these Type Xs. An upgrade for me from the Type S. Pleased that they can handle it loud and clear, just the way I like it. Good value for the money!

13 of 15 found this helpful

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Derik

Mooresville, NC

Overall
Durability
Value
Features
Design
Usability
Wow.

July 31, 2008

The box for these says 75 watts RMS if you feel you need more than that...you dont with these. i believe they are underrated. these are so accurate and so loud, but not all treble either. i have a infinity 475a 4 chan amp that can push 75, but i have it set to about 60W to each and they are REALLY loud and clear. i love them. great highs, great lows, and mids. Alpine is awesome. and for the price on this site there is no reason not to get the best stuff...so get alpine. very good for any music. at all.

15 of 19 found this helpful

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Chad

Bellevue, NE

Overall
Durability
Value
Features
Design
Usability
AWESOME

April 10, 2008

I've got these hooked up to a kicker amp pushing 70 watts to each and they sound better than anything I've heard. Its taken me awhile to get them sounding perfect, but now they do. And I'm completely and utterly satisfied.

14 of 17 found this helpful

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Tom

Australia

Overall
Durability
Value
Features
Design
Usability
Great Money For Value

July 14, 2011

These Alpine Speakers are a good all round Speaker system great money for value

14 of 18 found this helpful

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Kyle

northern, il

Overall
Durability
Value
Features
Design
Usability
solid sound

November 17, 2010

The best way I would describe these speakers is balanced. If anything they might be a more mellow set of what i have heard before. The bass is nice and tight, and the tweets aren't overly bright....in fact I prefer to have the tweets un-attenuated. The crossover is very flexible with multiple options for attenuation and bi-amping...not to mention that they are made of very high quality components. the woofers are also very small, using the neo-magnet makes these little guys fit into tight places.

I have a Kenwood KDC-x794 and I'm driving these speakers with 80w from a mb quart dsc 480.4. that said I'm not sure if they need more power or what, but I did think they would be louder than they are in my setup......granted im counting on one set for a full size sedan...with a sub for lows.

I'm currently considering trying to use the headunit to power the tweets alone and have the amp put 160w to each woofer....using the very flexible crossover in the bi-amp mode....but eh that involves taking stuff apart and I dont think it would be worth it in the end

In the end I wish I would have found some 6.5" hertz component speakers (they are supposed to be a little more bright and lively when compared to alpines).....but thats not to say that these dont sound great!

12 of 14 found this helpful

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JosMarCas

SoCal

Overall
Durability
Value
Features
Design
Usability
Supurb Full Sound

February 26, 2010

Replaced some 5-year old Sony Xplod's with these and all I can say is night-and-day. Powering them with an Alpine PDX-5 and the sound is perfect. I also installed some Alpine SPR-17C's in the rear of my Durango but I must say, the SPX's are well worth the extra cash and sound even better than the SPR's. SonicE shipped my stuff out really fast and everything was in perfect condition. Thx.

13 of 16 found this helpful

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Diz Jizzle

Alpine Land, Florida

Overall
Durability
Value
Features
Design
Usability
Great product for the money!

May 2, 2010

I bought 2 sets of these six 1/2 inch alpine SPX door speakers and the only thing i regret is that i only put 4 in my truck. they sound great! and i have a alpine 300 watt 4 channel pushing them. i crammed all of this into my 2002 extended cab silverado. all i did was replace the factory speakers but to me they seem to low to the floor in the front. so i want to add 2 more in the front facing me. i have had these speakers about 8 months and never had a problem with them yet. alpine is the best!

12 of 15 found this helpful

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Lauren

Australia

Overall
Durability
Value
Features
Design
Usability
Good review Alpine SPX-17REF

November 10, 2009

Easy set-up to use.
Big display, very functional.
Lots of possibilities with adding stuff like bluetooth, etc.

We fitted a reverse camera I bought off eBay to my car and hooked it up to the Alpine unit, no problems.

Glad to see it's also held it value.

No real downsides with the deck itself, have not encountered any bugs.
Plays videos well, excellent resolution.

13 of 18 found this helpful

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Accessory Tools and Products

Accessories added

NVX 25 ft. of True Spec 12 Gauge Speaker Wire

100% OFC wire with EnvyFlex metallic jacket insulates and protects against damage from extreme conditions.

Your Price $39.99

Streetwires 25 ft. of True Spec 12 Gauge Speaker Wire

You need speaker wire to connect your speakers!

Your Price $37.85

Belva 23 ft. of True Spec 12 Gauge Speaker Wire

100% Copper Clad Aluminum, high strand count with ultra-flexible PVC blended jacket for easy installation

Your Price $14.99

Car Stereo and Speaker Installation Tool Kit

Includes Test Light, Crimp/Splice Tool, Multi-bit Screwdriver and more.

Your Price $18.99

NVX XTGSP2 Tone Generator and Speaker Polarity Tester

Perfect for safely troubleshooting and testing audio systems

Your Price $29.99

Belva Five Piece Installer's Panel Removal Tool Kit

Easily removes dash/trims, door clips, panels and pins, rubber grommets and vehicle emblems.

Your Price $11.99

Universal Wire Puller & Grabber

Running wires has never been easier! This wire puller allows you to run wires through those hard to reach places!

Your Price $7.99

Encore Universal Four Door Power Door Lock Kit

Add Power Door Locking and Unlocking while you have the Door Panels removed

Your Price $29.99

NVX SDDK12 Door Kit

Eliminates speaker panel distortion and reduces door vibration, rattles and squeaks!

Your Price $47.99

Dynamat Xtreme Door Kit 10435

Enough sound dampening to cover most doors!

Your Price $60.97

Stinger Roadkill Door Kit

Use this to eliminate rattle from your doors!

Your Price $39.95

NVX Sound Dampening Rubber Roller

Install your Sound Dampening with ease using this heavy duty rubber roller!

Your Price $7.99

Speaker Baffles for your Speakers

Enhance the sound of your speakers with these easy to install speaker baffles.

Your Price $9.99

XTC 6-1/2" Round Large Frame, Shallow Foam Speaker Baffles

Creates a tight seal behind speaker for enhanced audio quality.

Your Price $13.84

12-10 AWG Butt Connectors

These yellow butt connectors are ideal when connecting thicker speaker wire your new aftermarket speakers.

Your Price $5.99

12-10 AWG Quick Disconnect Connectors

These yellow quick disconnect connectors make it easy to connect and disconnect speaker wire your to your new aftermarket speakers!

Your Price $11.99

Browse 1 question
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OK I HAVE SPX 13-REF COMPONENTS AND I WANT TO KNOW HOW TO ADJUST THE AXIS ON THE CROSSOVER I HAVE ON PAGE 6 OF MANUAL I HAVE TYPE C AXIS, WHERE DO I MAKE THESE SO CALLED ADJUSTMENTS TO JUMPERS I HAVE ON PAGE 4 i HAVE 4 AND 3 SET UP PLEASE HELP?
A shopper on Oct 12, 2014
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Product Summary

Manufacturer

Model Number

SPX-17REF

UPC

793276601308

Weight

12.00lbs

Internal SKU

spx17ref

Internal Product ID

10185

Sonic Electronix Wiring Guide

Wiring Diagram Legend

Warning: The image depicted shows the resistance change when wiring multiple subwoofer terminals. Please refer to your subwoofer's owner's manual for the proper wiring of its terminals. Sonic Electronix, Inc. is not responsible for damage caused to your audio system or vehicle due to improper installation. Please call tech support at 1-877-289-7664 if you require additional assistance.

Product Name: Alpine SPX-17REF