Alpine SPS-406 Type-S 4"x6" 2-way car speakers Zoom Front Photos Videos Does it fit my car? Item# 500SPS406 offer details Item# 500SPS406 Review Summary 23 people say In Stock Free Installation gear for most cars Free Crutchfield lifetime tech support Free Shipping Your price $79.99 Add to cart + Add to wishlist Email me alerts for this product Buy this item and earn up to 80 Rewards points See more offers and ways to save Special Financing Available By buying this product you'll earn up to 80 Rewards points. When you sign up for a Crutchfield account, you’ll be enrolled in Crutchfield Rewards. You’ll earn one point for every dollar you spend on gear from us. You can turn your points into Rewards Cards that you can use toward future purchases. You can sign up for an account now, or after you complete your purchase (you’ll get credit for the points either way). Sign up for a Crutchfield account Share this product: Overview Details Staff Reviews Customer Reviews Category Info Accessories Our take on the Alpine SPS-406 by Buck Pomerantz Alpine combines outstanding materials with superior construction to create their Type-S Series speakers. Upgrade your factory speakers with these Alpines, and they'll fill your vehicle with high-fidelity sound at a reasonable cost. The SPS-406 4"x6" speakers use strong, lightweight polypropylene-mica woofers to handle the lower frequencies. Air-injected rubber surrounds keep cone movement under tight control, eliminating distortion and enhancing bass. Stamped steel frames provide rugged support for these speakers, and their low profile allows them to fit in more factory locations. The 3/4" silk dome tweeters play your high notes smoothly and comfortably with no hint of harshness. You can also swivel the tweeters up to 10 degrees to improve the stereo image at your listening position. These efficient Type-S speakers will sound great with a low-powered factory radio, but they're also made to handle the high power output of an external amplifier. Grilles are not included — factory grilles are appropriate for most installations. See more info on this item Highlights:4"x6" 2-way speakers (pair)polypropylene-mica woofer cone with air-injected rubber surround3/4" silk dome tweeterpower range: 2-45 watts RMS (140 watts peak power)frequency response: 93-22,000 Hzsensitivity: 87 dBtop-mount depth: 1-3/4"warranty: 1 yearOur 60-day money-back guaranteeShop all Alpine Car Speakers Priced per pair Note: Sorry, Crutchfield cannot ship Alpine products to Guam or Puerto Rico. Hands-on research from the Crutchfield Labs (what are the Labs?) What’s in the box? | In-depth notes Product Research Product Research What's in the box? Download owner's manual Two 2-way 4x6" speakers 2 Plastic metric-to-standard adapter rings (for top-mount applications) 2 Metal metric-to-standard adapter rings (for bottom-mount applications) 2 Plastic bottom-mount spacer rings 2 Strips of self-adhesive foam Two 12" lengths of speaker wire (each length of speaker wire has quick-slides on one end and bare wire on the other end) Eight 13/16" self-tapping screws Eight 5/8" self-tapping screws Eight 1/4" self-tapping screws 8 Machine screws 8 Flat washers 8 Speed clips 8 Speed nuts Warranty sheet "Important Notice!" note Our Product Research Team At Crutchfield, you'll get detailed, accurate information that's hard to find elsewhere. That's because we have our own in-house Product Research team — they open the box, verify contents, check the owner's manual, and record dimensions, features and specs. We stay on top of new products and technologies to help people make informed choices. Features Poly-Mica Cone: Each speaker features a Poly-Mica cone. Mica adds strength and heat resistance to polypropylene, resulting in reduced distortion and improved reliability. Air-injected Rubber Surrounds: For a smoother response and improved durability, the woofers use air-injected rubber surrounds. Silk Dome Tweeters: Each speaker has a 3/4" Wide-Range Silk Dome Tweeter for smooth high frequencies. Highly Efficient Design: The SPS-406's high-efficiency design allows the speaker to be run off of your factory or aftermarket head unit, resulting in an easy system improvement for many vehicles requiring a 4x6" speaker. Shallow-Design: The Alpine SPS-406 features a stamped steel shallow frame. This shallow mounting design allows for easier installation in a wide range of door panels giving you a perfect fit. Mounting: The speakers can be mounted in a metric 4x6" opening, or, using the supplied adapter rings, the speakers can be mounted in a U.S. standard 4x6" opening. The speakers also come with bottom mount spacer rings. No Grilles: No grilles are included with this speaker. Product reviews from the Crutchfield Labs Product reviews from the Crutchfield Labs (what are the Labs?) Video: Alpine Type-S Car Speakers Video: Alpine Type-S Car Speakers Ken Nail, J.R. Stoffel 1/21/2009 Learn about some of the features that make Alpine Type-S car speakers a strong choice for great-sounding car audio. Product Reviews Review this product Submit a review and you will be entered to win a $150 gift card Crutchfield Great Gear Giveaway Official Sweepstakes Rules Reviews for the Alpine SPS-406 Average Customer Review: 23 people say: Review this product: Thanks for taking the time to share your experiences about this product. Please be sure to focus your comments on the product itself. Read our Review Guidelines for more information. Review title * Email Your email won't be visible. Please use the email address that is associated with your order. Display name (e.g., JohnD) Your review will be signed using the display name and location * Your location (e.g., Charlottesville, VA) * Your rating Click on a star to rate the overall product on a scale of 1-5 1500 characters left * Your review Attach a YouTube Review Crutchfield Video Review Guidelines Only submit videos that you made or are authorized to use. Do not submit videos that contain music, video or visuals that are copyrighted and belong to someone else. Please see our Review Guidelines for more information. Submit the URL of your YouTube™ video review or product demonstration. e.g., "http://www.youtube.com/v/o79TWHh598U" 500 characters left Pros 500 characters left Cons * Agree to Terms By checking this box you agree your review becomes the property of Crutchfield, that you are over 18 years of age, that you own or have owned this product, and that you are located within the United States or its territories. Please see our Review Guidelines for more information. We reserve the right (but are not obligated to) review all submissions and edit or remove any review in any manner which we deem necessary. Your review should be posted within seven days. Filter by rating: 5 Star: (14) 4 Star: (8) 3 Star: (1) 2 Star: (0) 1 Star: (0) Sort by: Date Reviewed Rating Helpfulness Showing: 1-20 of 23 View page: 12 » Items per page: 10 20 50 5 out of 5 Worked great for the dash of my Wrangler TJ Written By Tom s, Huntington, WV on Monday, June 17, 2013 Got these speakers to replace the ones in front dash of my TJ. It is a 1998 so really had some age on the speakers. Replaced rear a while ago and fronts sounded so bad, I had "faded" my stereo to the rear. These speakers were larger and move more air to give me a full sound all the way around the vehicle now. Very happy with them and EASY to install. Crutchfield always gives you the directions and parts needed so no worries. I had this done in 30 minutes. Wife couldn't believe how fast it was finished. Pros: Great full sound. Fit my vehicle thanks to website directions. Good price for sound. Cons: None. Was this review helpful? Yes | No 5 out of 5 alpines Written By kdak, columbus, oh on Monday, June 03, 2013 Crutchfield Customer Review (What's this?) Good stuff. Produces great sound at all levels. Easy fit. I would recommend them to anyone Was this review helpful? Yes | No 4 out of 5 Alpine sps-406 Written By Anonymous, Honeoye, ny on Thursday, February 28, 2013 Crutchfield Customer Review (What's this?) Haven't had in my vehicle long but so far sounds good and install was easy Pros: Easy install and directions helped alot Cons: A lot of hardware to sort through to find the right screws to use Was this review helpful? Yes | No 4 out of 5 Good speakers Written By Ashley, North Augusta, SC on Monday, December 24, 2012 Crutchfield Customer Review (What's this?) Good speakers, but had to modify vehicle to get them to fit properly. Pros: Good speakers for the price and very fast shipping! Cons: Had to make some modifications to get them to fit properly 2 out of 3 people found this helpful Was this review helpful? Yes | No 5 out of 5 great sound quality Written By JarvisR, Whitewater WI on Monday, July 02, 2012 Crutchfield Customer Review (What's this?) Sound quality is great and they pair well with my Alpine receiver. Pros: sound Was this review helpful? Yes | No 5 out of 5 Sps-406 speakers Written By Rick, Iowa on Thursday, June 07, 2012 These speakers are Awsome ! There is a guy on here said they only had high end tones. If they are wired wrong meaning positive and negative switched they will sound like this do to bass moves inward and not outward. Was this review helpful? Yes | No 3 out of 5 A little too bright Written By clayr, wilmington, nc on Saturday, February 04, 2012 Crutchfield Customer Review (What's this?) OK - as far as installation, no one beats Crutchfield - great directions, fast deliver, they rock. Speakers - i bought because i trust the Alpine brand, but i was disappointed, if only from a perspective of how these speakers are presented for use. I bought them (along with a set of Kickers) to replace the stock speakers in my 2003 Silverado, set up with a Kenwood Excelon KDC-395. They were listed as replacements for the rear door 4x6 speakers. After the install they sound very clean, and very bright - but TOO BRIGHT. no matter how i adjusted the head unit, i could not get any low end from the speakers. So i decided i really needed 6x9's, even if i have to cut the door panel. I felt a little bad returning them, until i re-installed the stock speakers to hold me over, and they stock speakers have more low end - sounded BETTER - than these. I think they are good speakers, but better suited for a front door setup, not the rear where you need some bottom end. (I put the same head unit in my daughters car with 6x9's in the back and there is PLENTY of bottom end - even without an amp and subs). so that's my comments - might work well in some setup, but not as the rear speakers. Get out your metal cutter and put those 6x9's in. Pros: good sound - bright and clean Cons: TOO bright 3 out of 4 people found this helpful Was this review helpful? Yes | No 5 out of 5 Awesome Written By Chris, Danbury, CT on Monday, August 29, 2011 Crutchfield Customer Review (What's this?) I installed this myself in the dash of my 2001 s-10 Zr2. Everything said they won't fit in stock spots without modifications. I plugged them in to my factory wiring with the wiring adapter that was included n with no modifications they fit tightly . They sound awesome along with the alpine cda-105 headunit, and the alpine SPS-600C Type-S 6-3/4" component speakers n tweeters Rock out clear n great. Cannot wait to add my jvc arsenal 10" sub! These speakers way surpassed my expectations for $79.99!!!!!!!!! 3 out of 3 people found this helpful Was this review helpful? Yes | No 4 out of 5 porsche 944 Written By mike, Totowa nj on Saturday, August 20, 2011 Crutchfield Customer Review (What's this?) First of all I want to say that I love dealing with Crutchfield! They're always very helpful when you have problems! I really like these speakers a lot! They sound great with my JVC BonJiovi powered stereo! Crisp and clear! Especially for only being a two way speaker! There might be better speakers out there than these but they wouldn't fit in the front doors of my car. Trust me.. The price of these is very very low for the quality of the sound! Not a ton of bass but there's no way of getting that from a 4by6! The front speakers just barely fit in and the grill is bulging out just a little bit. But in the rear I could have gone with something a little bigger magnet wise... but still stay with a 4 by 6. The hardest part of the rear install was pulling the vinyl apart without tearing it! (fingertip strength) The rest is really not that hard! I built up the rear footwell with a lot of layers of foam so that I could sit back there and work! 3 out of 3 people found this helpful Was this review helpful? Yes | No 5 out of 5 Alpine SPS-406 Written By Adam, Tulsa Ok on Saturday, November 20, 2010 Crutchfield Customer Review (What's this?) Replaced my stock 4x6 speakers in my 03 ext cab silverado. Huge improvement, clarity and range of music are the biggest changes. Install was easy although the speaker installation instructions are lacking. Crutchfield instructions included helped out with proper and simple door removal. Overall very satisfied. Still running them on the stock stereo, power handling dictates turning the volume up a little more than before with stock speakers. Love the sound, very good alpine speakers. Adam 4 out of 4 people found this helpful Was this review helpful? Yes | No 5 out of 5 2002 cavalier Written By Tyler, Abington Pa on Saturday, August 21, 2010 To start off i just bought a 2002 cavalier, and i wanted to upgrade my audio system. So I got a full system. I got a Kenwood Excelon KDC-X494 headunit, these 4x6 sps alpine speakers for the doors, 6x9 sps speakers for the rear, Kenwood KAC-6404 4 chan amp for the speakers, a jh600 mtx mono block amp, and a JL Audio 12W3v3-4 subwoofer. I also put bass blockers to these speakers because thats what my subwoofer is for. I did test the bass before adding the blockers, and it was fine for a 4x6, but not great. I will say however the mids and highs sounded great with my amp. I would suggest these to anyone building a system. They make my music sound full and lively. 2 out of 2 people found this helpful Was this review helpful? Yes | No 4 out of 5 Adapter brackets did the trick Written By Rod, Raleigh, NC on Wednesday, June 09, 2010 Crutchfield Customer Review (What's this?) These speakers fit perfectly in my '91 Corvette. The OEM's have a rectangular frame and these came with two different adapter plates to choose from to create a perfect fit. 1 out of 2 people found this helpful Was this review helpful? Yes | No 5 out of 5 Alpine SPS-406 Written By joey, clifton, nj on Sunday, January 31, 2010 just installed these in a 04 chevy cavalier. it says they dont fit but it was a perfect fit. they sound great! it and it was a perfect install no mod required to get them to fit into the factory brackets! 1 out of 1 people found this helpful Was this review helpful? Yes | No 4 out of 5 Improvement over Wrangler Stock Speakers Written By Anonymous, Mt. Pleasant on Wednesday, January 06, 2010 Crutchfield Customer Review (What's this?) I paired the SPS-406 with Alpine SPS-500s in the roll bar and a Kenwood KDC-X493 head unit. A noticeable improvement over the cheap paper stock speakers on the 2005 Wrangler. A little more bass comes out and the mids and highs are clean & crisp. Don't make the same mistake I made and expect miracles from these speakers. A woofer and tweeter of this size can only do so much. Crutchfield provided prompt service as always and their technical support is awesome. The installation instructions on the speaker box made pairing up the speakers to the adapter plates a real chore. [Editor's Note: The adapter needed to install 4x6" speakers in the wrangler dash is no longer available. We now recommend 4" speakers for this location.] 1 out of 1 people found this helpful Was this review helpful? Yes | No 5 out of 5 Great Speakers! Written By Daniel, Fort Knox, KY on Wednesday, October 14, 2009 Crutchfield Customer Review (What's this?) First- If you are buying these for the rear panels of an 88-93 Chevy Truck, these are NOT direct fit!!! The opening needs to be slightly modified to accept the metal spacer, or the trim will have to be modified if you use the plastic spacer (which works a little better IMO). As for the speakers, they sound absolutely terrific. Clarity even at very loud volumes is excellent. If you expect a lot of low end, you're looking at the wrong size speaker. These work best with bass blockers and a subwoofer installed for low-end frequencies. They can handle plenty of power, so match them up with a strong enough head unit to maximize results. Great mid and high tones, and as i mentioned before, clarity is awesome. Instructions in the box are terrible. It took me about 30 minutes to figure out what the diagram (no written instructions) were showing, but maybe that was just me. As always, Crutchfield is great and gives you everything you need to do the install except for the trim removing tool (you'll need it). Overall, very pleased with these speakers! 5 out of 5 people found this helpful Was this review helpful? Yes | No 4 out of 5 Cant beat the price Written By Rafael, Santa Clara, Ca on Thursday, June 18, 2009 Crutchfield Customer Review (What's this?) Let's face it, for the price you pay for these speakers you can't go wrong. Try hooking these speakers up to an amp, you'll love the way they sound for the price you pay. I would buy these speakers again. 1 out of 1 people found this helpful Was this review helpful? Yes | No 5 out of 5 Great Buy!!! Written By John, North Dakota on Friday, May 22, 2009 I bought these speakers wanting a crystal clear sound. I got just that, I am only putting 18 watts into each of the 4 speakers in my 1993 extended cab silvarado and these are loud. They dont have much bass but thats what a sub is for. I would definatelly suggest these speakers to anyone looking for a good sounding system. Good shipping Crutchfield! 2 out of 2 people found this helpful Was this review helpful? Yes | No 4 out of 5 These do not fit 3d generation Firebirds Written By sam, huntsville al on Sunday, March 22, 2009 Crutchfield Customer Review (What's this?) purchased these for my 83 Firebird as the web site indicated they would fit... Web site is incorrect.. these do not fit 3d generation firebirds not sure about camaros...but since they share the same body I suspect they will not Contacted crutchfield and servce tech indicated his reference showed these speakers are not a fit...I pointed out the incorrect info on the web site and he gave me a return lable and shipped me some kenwood's that should fit. I did plug the speakers in to give a listen...they sounded great...too bad hey do not fit 5 out of 5 people found this helpful Was this review helpful? Yes | No 5 out of 5 Alpine SPS-406 Written By raul, San Antonio, Tx. on Sunday, January 18, 2009 Crutchfield Customer Review (What's this?) Good quality sound. 1 out of 3 people found this helpful Was this review helpful? Yes | No 5 out of 5 Great sound, 01 Silverado Written By Christopher, Siler City, NC on Monday, November 17, 2008 Crutchfield Customer Review (What's this?) These speakers sound great. I have them in the back doors of my 01 Silverado extended cab. They fit perfectly, I only had to drill holes for the mounting bracket, but that was pretty easy. I am extremely satisfied with the way these sound. They are paired up with a set of Alpine SPS-600's in the front doors and a CDA-9884 head unit. I am not running an amplifier or sub, but this combo still sounds great. 17 out of 17 people found this helpful Was this review helpful? Yes | No 1-20 of 23 >> Accessories Add accessories for the Alpine SPS-406 Add Accessories Add a Warranty Reduce ambient road noise and your vehicle's "rattles," for better sound inside your car. See all categories & accessories Reduce ambient road noise and your vehicle's "rattles," for better sound inside your car. Dynamat You'll need speaker wire to connect your speakers to your amp. Speaker Wire Keep your speakers clean and dry. They compress to fit behind your speakers. Foam Speaker Baffles These speaker connectors are handy if you're running new speaker wire or if your speakers have oversized terminals. Speaker Connectors The right tools will help keep your installation simple and clean. Installation Tools and Shop Supplies Get more info about having your new component speakers put in by a qualified professional in your area. Professional Installation If your stereo doesn't cut the deep bass from your full-range speakers, a set of bass blockers can help prevent distortion and give you cleaner bass too. Bass Blockers Dynamat 10415 Xtreme Speaker Kit Two 10-in. x 10-in. Sheets 28 people say Your Price: $26.99 Add to Cart Dynamat 10435 Xtreme Door Kit With four 12" x 36" sheets — covers two doors 21 people say Your Price: $99.99 Add to Cart Dynamat SuperLite Tri-Pak Triple package — 3 sheets, 12 square feet (Model #10612) 7 people say Your Price: $69.99 Add to Cart StreetWires 14-gauge Super Cable™ Speaker Wire Translucent blue jacket — priced per foot (Clear) 3 people say Your Price: $1.49 Add to Cart StreetWires 16-gauge Super Cable™ Speaker Wire Blue jacket — priced per foot 19 people say Your Price: $0.49 Add to Cart StreetWires 12-gauge Ultra Cable™ Speaker Wire Blue/copper jacket — priced per foot 57 people say Your Price: $1.99 Add to Cart StreetWires 14-gauge Ultra Cable™ Speaker Wire Blue/copper jacket — priced per foot 33 people say Your Price: $1.49 Add to Cart StreetWires 14-gauge Ultra Cable™ Speaker Wire Blue/copper jacket 25 feet 8 people say Your Price: $39.99 Add to Cart Stinger PRO Series 16-gauge Speaker Wire Black jacket — priced per foot 7 people say Your Price: $0.39 Add to Cart Boom Mat 4"x6" Speaker Baffles Protect your speakers Regular and slim-line sizes (Slim-line: 2" depth) Options Regular: 3-1/2" depth-$9.99 Slim-line: 2" depth-$9.99 Protect your speakers Regular and slim-line sizes (Regular: 3-1/2" depth) Protect your speakers Regular and slim-line sizes (Slim-line: 2" depth) 1 person says Your Price: $9.99 Add to Cart XTC 4"x6" Speaker Baffles Protect your speakers (Slim-line: 2" depth) 12 people say Your Price: $7.99 Add to Cart Metra Female Quick Slides An assortment of female quick slide connectors for connecting to speaker terminals 7 people say Your Price: $1.99 Add to Cart Metra Crimp Tool and Connectors Package contains crimp tool and over 150 pieces 6 people say Your Price: $19.99 Add to Cart Posi-Products™ Car Speaker Connectors 8 connectors for installing car speakers 10 people say Your Price: $11.99 Add to Cart S&G Wire Cutter/Stripper Tool Cuts and strips 12- to 22-gauge wire 5 people say Your Price: $19.99 Add to Cart S&G Tool Aid 87615 Window and Door Clip Removal Tool 11 people say Your Price: $7.99 Add to Cart S&G Tool Aid 87650 Door Trim and Panel Removal Tool 55 people say Your Price: $9.99 Add to Cart Bojo Trim Panel Tools Set of 6 plastic tools — helps remove interior and exterior trim and door panels 21 people say Your Price: $24.99 Add to Cart DEI Heat Shrink Tubing Black 4-foot length (Assortment) Your Price: $24.99 Add to Cart Skewdriver Pro SPK4042 Ratcheting straight and offset screwdriver set with 40 bits (Skewdriver Pro with ratchet handle, pictured) 6 people say Your Price: $49.99 Add to Cart Spec Tools SQR-200a Squeeze Wrench Narrow space ratchet kit with 18 sockets 1 person says Your Price: $49.99 Add to Cart InstallCard: Speaker or Subwoofer Prepaid installation card — for one pair of speakers or a subwoofer 13 people say Your Price: $54.99 Add to Cart Bass Blockers Pairs (300 Hz cut-off) Options 300 Hz cut-off-$9.99 600 Hz cut-off-$9.99 Pairs (300 Hz cut-off) Pairs (600 Hz cut-off) 52 people say Your Price: $9.99 Add to Cart Smart people protect with SquareTrade- The best warranty at the best price SquareTrade Warranty 3 Year Warranty Your Price: $14.99 Add to Cart In business since 1999, SquareTrade is the largest independent warranty provider in the U.S. 100% parts and labor - no deductibles All mechanical and electrical failures covered, includes normal wear and tear. Your item's repaired or the full item price returned withing 5 days Runs concurrent with manufacturer's warranty Rated 5-stars by consumers For a more in-depth review and enhanced detailed information on the Alpine SPS-406, please visit the Crutchfield website product page (/S-qz5YB0cYpPa/p_500SPS406/Alpine-SPS-406.html ). Recommended Accessories See more accessories Your featured item Alpine SPS-406 Type-S 4"x6" 2-way car speakers $79.99 In Stock Dynamat Dynamat 10415 Xtreme Speaker Kit Two 10-in. x 10-in. Sheets $26.99 In Stock Speaker Wire StreetWires 14-gauge Super Cable™ Speaker Wire Translucent blue jacket — priced per foot (Clear) $1.49 In Stock Foam Speaker Baffles Boom Mat 4"x6" Speaker Baffles Protect your speakers Regular and slim-line sizes (Slim-line: 2" depth) $9.99 In Stock Speaker Connectors Metra Female Quick Slides An assortment of female quick slide connectors for connecting to speaker terminals $1.99 In Stock Protect your gear with an extended warranty Add 3 Year Warranty Square Trade Warranty $14.99 In Stock Add selected to cart Front
Our take on the Alpine SPS-406 by Buck Pomerantz Alpine combines outstanding materials with superior construction to create their Type-S Series speakers. Upgrade your factory speakers with these Alpines, and they'll fill your vehicle with high-fidelity sound at a reasonable cost. The SPS-406 4"x6" speakers use strong, lightweight polypropylene-mica woofers to handle the lower frequencies. Air-injected rubber surrounds keep cone movement under tight control, eliminating distortion and enhancing bass. Stamped steel frames provide rugged support for these speakers, and their low profile allows them to fit in more factory locations. The 3/4" silk dome tweeters play your high notes smoothly and comfortably with no hint of harshness. You can also swivel the tweeters up to 10 degrees to improve the stereo image at your listening position. These efficient Type-S speakers will sound great with a low-powered factory radio, but they're also made to handle the high power output of an external amplifier. Grilles are not included — factory grilles are appropriate for most installations. See more info on this item Highlights:4"x6" 2-way speakers (pair)polypropylene-mica woofer cone with air-injected rubber surround3/4" silk dome tweeterpower range: 2-45 watts RMS (140 watts peak power)frequency response: 93-22,000 Hzsensitivity: 87 dBtop-mount depth: 1-3/4"warranty: 1 yearOur 60-day money-back guaranteeShop all Alpine Car Speakers Priced per pair Note: Sorry, Crutchfield cannot ship Alpine products to Guam or Puerto Rico.
Hands-on research from the Crutchfield Labs (what are the Labs?) What’s in the box? | In-depth notes Product Research Product Research What's in the box? Download owner's manual Two 2-way 4x6" speakers 2 Plastic metric-to-standard adapter rings (for top-mount applications) 2 Metal metric-to-standard adapter rings (for bottom-mount applications) 2 Plastic bottom-mount spacer rings 2 Strips of self-adhesive foam Two 12" lengths of speaker wire (each length of speaker wire has quick-slides on one end and bare wire on the other end) Eight 13/16" self-tapping screws Eight 5/8" self-tapping screws Eight 1/4" self-tapping screws 8 Machine screws 8 Flat washers 8 Speed clips 8 Speed nuts Warranty sheet "Important Notice!" note Our Product Research Team At Crutchfield, you'll get detailed, accurate information that's hard to find elsewhere. That's because we have our own in-house Product Research team — they open the box, verify contents, check the owner's manual, and record dimensions, features and specs. We stay on top of new products and technologies to help people make informed choices. Features Poly-Mica Cone: Each speaker features a Poly-Mica cone. Mica adds strength and heat resistance to polypropylene, resulting in reduced distortion and improved reliability. Air-injected Rubber Surrounds: For a smoother response and improved durability, the woofers use air-injected rubber surrounds. Silk Dome Tweeters: Each speaker has a 3/4" Wide-Range Silk Dome Tweeter for smooth high frequencies. Highly Efficient Design: The SPS-406's high-efficiency design allows the speaker to be run off of your factory or aftermarket head unit, resulting in an easy system improvement for many vehicles requiring a 4x6" speaker. Shallow-Design: The Alpine SPS-406 features a stamped steel shallow frame. This shallow mounting design allows for easier installation in a wide range of door panels giving you a perfect fit. Mounting: The speakers can be mounted in a metric 4x6" opening, or, using the supplied adapter rings, the speakers can be mounted in a U.S. standard 4x6" opening. The speakers also come with bottom mount spacer rings. No Grilles: No grilles are included with this speaker.
Video: Alpine Type-S Car Speakers Video: Alpine Type-S Car Speakers Ken Nail, J.R. Stoffel 1/21/2009 Learn about some of the features that make Alpine Type-S car speakers a strong choice for great-sounding car audio.
5 out of 5 Worked great for the dash of my Wrangler TJ Written By Tom s, Huntington, WV on Monday, June 17, 2013 Got these speakers to replace the ones in front dash of my TJ. It is a 1998 so really had some age on the speakers. Replaced rear a while ago and fronts sounded so bad, I had "faded" my stereo to the rear. These speakers were larger and move more air to give me a full sound all the way around the vehicle now. Very happy with them and EASY to install. Crutchfield always gives you the directions and parts needed so no worries. I had this done in 30 minutes. Wife couldn't believe how fast it was finished. Pros: Great full sound. Fit my vehicle thanks to website directions. Good price for sound. Cons: None. Was this review helpful? Yes | No
5 out of 5 alpines Written By kdak, columbus, oh on Monday, June 03, 2013 Crutchfield Customer Review (What's this?) Good stuff. Produces great sound at all levels. Easy fit. I would recommend them to anyone Was this review helpful? Yes | No
4 out of 5 Alpine sps-406 Written By Anonymous, Honeoye, ny on Thursday, February 28, 2013 Crutchfield Customer Review (What's this?) Haven't had in my vehicle long but so far sounds good and install was easy Pros: Easy install and directions helped alot Cons: A lot of hardware to sort through to find the right screws to use Was this review helpful? Yes | No
4 out of 5 Good speakers Written By Ashley, North Augusta, SC on Monday, December 24, 2012 Crutchfield Customer Review (What's this?) Good speakers, but had to modify vehicle to get them to fit properly. Pros: Good speakers for the price and very fast shipping! Cons: Had to make some modifications to get them to fit properly 2 out of 3 people found this helpful Was this review helpful? Yes | No
5 out of 5 great sound quality Written By JarvisR, Whitewater WI on Monday, July 02, 2012 Crutchfield Customer Review (What's this?) Sound quality is great and they pair well with my Alpine receiver. Pros: sound Was this review helpful? Yes | No
5 out of 5 Sps-406 speakers Written By Rick, Iowa on Thursday, June 07, 2012 These speakers are Awsome ! There is a guy on here said they only had high end tones. If they are wired wrong meaning positive and negative switched they will sound like this do to bass moves inward and not outward. Was this review helpful? Yes | No
3 out of 5 A little too bright Written By clayr, wilmington, nc on Saturday, February 04, 2012 Crutchfield Customer Review (What's this?) OK - as far as installation, no one beats Crutchfield - great directions, fast deliver, they rock. Speakers - i bought because i trust the Alpine brand, but i was disappointed, if only from a perspective of how these speakers are presented for use. I bought them (along with a set of Kickers) to replace the stock speakers in my 2003 Silverado, set up with a Kenwood Excelon KDC-395. They were listed as replacements for the rear door 4x6 speakers. After the install they sound very clean, and very bright - but TOO BRIGHT. no matter how i adjusted the head unit, i could not get any low end from the speakers. So i decided i really needed 6x9's, even if i have to cut the door panel. I felt a little bad returning them, until i re-installed the stock speakers to hold me over, and they stock speakers have more low end - sounded BETTER - than these. I think they are good speakers, but better suited for a front door setup, not the rear where you need some bottom end. (I put the same head unit in my daughters car with 6x9's in the back and there is PLENTY of bottom end - even without an amp and subs). so that's my comments - might work well in some setup, but not as the rear speakers. Get out your metal cutter and put those 6x9's in. Pros: good sound - bright and clean Cons: TOO bright 3 out of 4 people found this helpful Was this review helpful? Yes | No
5 out of 5 Awesome Written By Chris, Danbury, CT on Monday, August 29, 2011 Crutchfield Customer Review (What's this?) I installed this myself in the dash of my 2001 s-10 Zr2. Everything said they won't fit in stock spots without modifications. I plugged them in to my factory wiring with the wiring adapter that was included n with no modifications they fit tightly . They sound awesome along with the alpine cda-105 headunit, and the alpine SPS-600C Type-S 6-3/4" component speakers n tweeters Rock out clear n great. Cannot wait to add my jvc arsenal 10" sub! These speakers way surpassed my expectations for $79.99!!!!!!!!! 3 out of 3 people found this helpful Was this review helpful? Yes | No
4 out of 5 porsche 944 Written By mike, Totowa nj on Saturday, August 20, 2011 Crutchfield Customer Review (What's this?) First of all I want to say that I love dealing with Crutchfield! They're always very helpful when you have problems! I really like these speakers a lot! They sound great with my JVC BonJiovi powered stereo! Crisp and clear! Especially for only being a two way speaker! There might be better speakers out there than these but they wouldn't fit in the front doors of my car. Trust me.. The price of these is very very low for the quality of the sound! Not a ton of bass but there's no way of getting that from a 4by6! The front speakers just barely fit in and the grill is bulging out just a little bit. But in the rear I could have gone with something a little bigger magnet wise... but still stay with a 4 by 6. The hardest part of the rear install was pulling the vinyl apart without tearing it! (fingertip strength) The rest is really not that hard! I built up the rear footwell with a lot of layers of foam so that I could sit back there and work! 3 out of 3 people found this helpful Was this review helpful? Yes | No
5 out of 5 Alpine SPS-406 Written By Adam, Tulsa Ok on Saturday, November 20, 2010 Crutchfield Customer Review (What's this?) Replaced my stock 4x6 speakers in my 03 ext cab silverado. Huge improvement, clarity and range of music are the biggest changes. Install was easy although the speaker installation instructions are lacking. Crutchfield instructions included helped out with proper and simple door removal. Overall very satisfied. Still running them on the stock stereo, power handling dictates turning the volume up a little more than before with stock speakers. Love the sound, very good alpine speakers. Adam 4 out of 4 people found this helpful Was this review helpful? Yes | No
5 out of 5 2002 cavalier Written By Tyler, Abington Pa on Saturday, August 21, 2010 To start off i just bought a 2002 cavalier, and i wanted to upgrade my audio system. So I got a full system. I got a Kenwood Excelon KDC-X494 headunit, these 4x6 sps alpine speakers for the doors, 6x9 sps speakers for the rear, Kenwood KAC-6404 4 chan amp for the speakers, a jh600 mtx mono block amp, and a JL Audio 12W3v3-4 subwoofer. I also put bass blockers to these speakers because thats what my subwoofer is for. I did test the bass before adding the blockers, and it was fine for a 4x6, but not great. I will say however the mids and highs sounded great with my amp. I would suggest these to anyone building a system. They make my music sound full and lively. 2 out of 2 people found this helpful Was this review helpful? Yes | No
4 out of 5 Adapter brackets did the trick Written By Rod, Raleigh, NC on Wednesday, June 09, 2010 Crutchfield Customer Review (What's this?) These speakers fit perfectly in my '91 Corvette. The OEM's have a rectangular frame and these came with two different adapter plates to choose from to create a perfect fit. 1 out of 2 people found this helpful Was this review helpful? Yes | No
5 out of 5 Alpine SPS-406 Written By joey, clifton, nj on Sunday, January 31, 2010 just installed these in a 04 chevy cavalier. it says they dont fit but it was a perfect fit. they sound great! it and it was a perfect install no mod required to get them to fit into the factory brackets! 1 out of 1 people found this helpful Was this review helpful? Yes | No
4 out of 5 Improvement over Wrangler Stock Speakers Written By Anonymous, Mt. Pleasant on Wednesday, January 06, 2010 Crutchfield Customer Review (What's this?) I paired the SPS-406 with Alpine SPS-500s in the roll bar and a Kenwood KDC-X493 head unit. A noticeable improvement over the cheap paper stock speakers on the 2005 Wrangler. A little more bass comes out and the mids and highs are clean & crisp. Don't make the same mistake I made and expect miracles from these speakers. A woofer and tweeter of this size can only do so much. Crutchfield provided prompt service as always and their technical support is awesome. The installation instructions on the speaker box made pairing up the speakers to the adapter plates a real chore. [Editor's Note: The adapter needed to install 4x6" speakers in the wrangler dash is no longer available. We now recommend 4" speakers for this location.] 1 out of 1 people found this helpful Was this review helpful? Yes | No
5 out of 5 Great Speakers! Written By Daniel, Fort Knox, KY on Wednesday, October 14, 2009 Crutchfield Customer Review (What's this?) First- If you are buying these for the rear panels of an 88-93 Chevy Truck, these are NOT direct fit!!! The opening needs to be slightly modified to accept the metal spacer, or the trim will have to be modified if you use the plastic spacer (which works a little better IMO). As for the speakers, they sound absolutely terrific. Clarity even at very loud volumes is excellent. If you expect a lot of low end, you're looking at the wrong size speaker. These work best with bass blockers and a subwoofer installed for low-end frequencies. They can handle plenty of power, so match them up with a strong enough head unit to maximize results. Great mid and high tones, and as i mentioned before, clarity is awesome. Instructions in the box are terrible. It took me about 30 minutes to figure out what the diagram (no written instructions) were showing, but maybe that was just me. As always, Crutchfield is great and gives you everything you need to do the install except for the trim removing tool (you'll need it). Overall, very pleased with these speakers! 5 out of 5 people found this helpful Was this review helpful? Yes | No
4 out of 5 Cant beat the price Written By Rafael, Santa Clara, Ca on Thursday, June 18, 2009 Crutchfield Customer Review (What's this?) Let's face it, for the price you pay for these speakers you can't go wrong. Try hooking these speakers up to an amp, you'll love the way they sound for the price you pay. I would buy these speakers again. 1 out of 1 people found this helpful Was this review helpful? Yes | No
5 out of 5 Great Buy!!! Written By John, North Dakota on Friday, May 22, 2009 I bought these speakers wanting a crystal clear sound. I got just that, I am only putting 18 watts into each of the 4 speakers in my 1993 extended cab silvarado and these are loud. They dont have much bass but thats what a sub is for. I would definatelly suggest these speakers to anyone looking for a good sounding system. Good shipping Crutchfield! 2 out of 2 people found this helpful Was this review helpful? Yes | No
4 out of 5 These do not fit 3d generation Firebirds Written By sam, huntsville al on Sunday, March 22, 2009 Crutchfield Customer Review (What's this?) purchased these for my 83 Firebird as the web site indicated they would fit... Web site is incorrect.. these do not fit 3d generation firebirds not sure about camaros...but since they share the same body I suspect they will not Contacted crutchfield and servce tech indicated his reference showed these speakers are not a fit...I pointed out the incorrect info on the web site and he gave me a return lable and shipped me some kenwood's that should fit. I did plug the speakers in to give a listen...they sounded great...too bad hey do not fit 5 out of 5 people found this helpful Was this review helpful? Yes | No
5 out of 5 Alpine SPS-406 Written By raul, San Antonio, Tx. on Sunday, January 18, 2009 Crutchfield Customer Review (What's this?) Good quality sound. 1 out of 3 people found this helpful Was this review helpful? Yes | No
5 out of 5 Great sound, 01 Silverado Written By Christopher, Siler City, NC on Monday, November 17, 2008 Crutchfield Customer Review (What's this?) These speakers sound great. I have them in the back doors of my 01 Silverado extended cab. They fit perfectly, I only had to drill holes for the mounting bracket, but that was pretty easy. I am extremely satisfied with the way these sound. They are paired up with a set of Alpine SPS-600's in the front doors and a CDA-9884 head unit. I am not running an amplifier or sub, but this combo still sounds great. 17 out of 17 people found this helpful Was this review helpful? Yes | No
Accessories Add accessories for the Alpine SPS-406 Add Accessories Add a Warranty Reduce ambient road noise and your vehicle's "rattles," for better sound inside your car. See all categories & accessories Reduce ambient road noise and your vehicle's "rattles," for better sound inside your car. Dynamat You'll need speaker wire to connect your speakers to your amp. Speaker Wire Keep your speakers clean and dry. They compress to fit behind your speakers. Foam Speaker Baffles These speaker connectors are handy if you're running new speaker wire or if your speakers have oversized terminals. Speaker Connectors The right tools will help keep your installation simple and clean. Installation Tools and Shop Supplies Get more info about having your new component speakers put in by a qualified professional in your area. Professional Installation If your stereo doesn't cut the deep bass from your full-range speakers, a set of bass blockers can help prevent distortion and give you cleaner bass too. Bass Blockers Dynamat 10415 Xtreme Speaker Kit Two 10-in. x 10-in. Sheets 28 people say Your Price: $26.99 Add to Cart Dynamat 10435 Xtreme Door Kit With four 12" x 36" sheets — covers two doors 21 people say Your Price: $99.99 Add to Cart Dynamat SuperLite Tri-Pak Triple package — 3 sheets, 12 square feet (Model #10612) 7 people say Your Price: $69.99 Add to Cart StreetWires 14-gauge Super Cable™ Speaker Wire Translucent blue jacket — priced per foot (Clear) 3 people say Your Price: $1.49 Add to Cart StreetWires 16-gauge Super Cable™ Speaker Wire Blue jacket — priced per foot 19 people say Your Price: $0.49 Add to Cart StreetWires 12-gauge Ultra Cable™ Speaker Wire Blue/copper jacket — priced per foot 57 people say Your Price: $1.99 Add to Cart StreetWires 14-gauge Ultra Cable™ Speaker Wire Blue/copper jacket — priced per foot 33 people say Your Price: $1.49 Add to Cart StreetWires 14-gauge Ultra Cable™ Speaker Wire Blue/copper jacket 25 feet 8 people say Your Price: $39.99 Add to Cart Stinger PRO Series 16-gauge Speaker Wire Black jacket — priced per foot 7 people say Your Price: $0.39 Add to Cart Boom Mat 4"x6" Speaker Baffles Protect your speakers Regular and slim-line sizes (Slim-line: 2" depth) Options Regular: 3-1/2" depth-$9.99 Slim-line: 2" depth-$9.99 Protect your speakers Regular and slim-line sizes (Regular: 3-1/2" depth) Protect your speakers Regular and slim-line sizes (Slim-line: 2" depth) 1 person says Your Price: $9.99 Add to Cart XTC 4"x6" Speaker Baffles Protect your speakers (Slim-line: 2" depth) 12 people say Your Price: $7.99 Add to Cart Metra Female Quick Slides An assortment of female quick slide connectors for connecting to speaker terminals 7 people say Your Price: $1.99 Add to Cart Metra Crimp Tool and Connectors Package contains crimp tool and over 150 pieces 6 people say Your Price: $19.99 Add to Cart Posi-Products™ Car Speaker Connectors 8 connectors for installing car speakers 10 people say Your Price: $11.99 Add to Cart S&G Wire Cutter/Stripper Tool Cuts and strips 12- to 22-gauge wire 5 people say Your Price: $19.99 Add to Cart S&G Tool Aid 87615 Window and Door Clip Removal Tool 11 people say Your Price: $7.99 Add to Cart S&G Tool Aid 87650 Door Trim and Panel Removal Tool 55 people say Your Price: $9.99 Add to Cart Bojo Trim Panel Tools Set of 6 plastic tools — helps remove interior and exterior trim and door panels 21 people say Your Price: $24.99 Add to Cart DEI Heat Shrink Tubing Black 4-foot length (Assortment) Your Price: $24.99 Add to Cart Skewdriver Pro SPK4042 Ratcheting straight and offset screwdriver set with 40 bits (Skewdriver Pro with ratchet handle, pictured) 6 people say Your Price: $49.99 Add to Cart Spec Tools SQR-200a Squeeze Wrench Narrow space ratchet kit with 18 sockets 1 person says Your Price: $49.99 Add to Cart InstallCard: Speaker or Subwoofer Prepaid installation card — for one pair of speakers or a subwoofer 13 people say Your Price: $54.99 Add to Cart Bass Blockers Pairs (300 Hz cut-off) Options 300 Hz cut-off-$9.99 600 Hz cut-off-$9.99 Pairs (300 Hz cut-off) Pairs (600 Hz cut-off) 52 people say Your Price: $9.99 Add to Cart Smart people protect with SquareTrade- The best warranty at the best price SquareTrade Warranty 3 Year Warranty Your Price: $14.99 Add to Cart In business since 1999, SquareTrade is the largest independent warranty provider in the U.S. 100% parts and labor - no deductibles All mechanical and electrical failures covered, includes normal wear and tear. Your item's repaired or the full item price returned withing 5 days Runs concurrent with manufacturer's warranty Rated 5-stars by consumers
