Q-Logic QLH-.8512DE Type 1 dual 12" hatchback box Zoom Front Video loading and will display in just a moment. Photos Videos My vehicle's homepage We don't check this item for fit or compatibility. Item# 044H8512DE offer details Item# 044H8512DE Review Sumary 3 people say DISCONTINUED This item is no longer available to purchase. Contact us for other options Call Email See all Sealed & Ported In-stock Alternative Pioneer UD-SW100T $79.99 Overview Details Customer Reviews Category Info Accessories Our take on the Q-Logic QLH-.8512DE by Steven Johnson Why do I need an enclosure? An enclosure is simply the box that houses your sub; sealed and ported enclosures are the most popular types. A sealed enclosure is usually smaller in size, sacrificing a little volume level to deliver more accurate bass. The ported enclosure features a vent which allows bass waves to escape from behind the mounted sub, augmenting the bass coming off the front of the sub. Ported boxes are louder, bigger, and a little less accurate. Every sub works best in the size and type of enclosure that's recommended by the manufacturer, so make sure you match your sub with the right box. Q-Logic enclosures take the guesswork out of box-building, so you can enjoy great bass without the time-consuming process of constructing your own enclosure. The QLH-.8512DE accommodates two 12" subwoofers in a sturdy housing made entirely of non-resonant medium-density fiberboard. This box features reliable locking-joint construction, and is impeccably upholstered with durable gray carpet. Since subwoofers' basket design and bolt patterns vary by brand, Q-Logic's ingenious QxE seal ring allows you to customize the box opening for virtually every woofer available. Plus, a cool-looking, one-piece grille works even with woofers that have large roll surrounds, so you get solid protection and sharp looks. The box comes with two grilles (with screws), two sets of spring posts, polyester fiber stuffing, and speaker leads with quick-slides for easy connection to your woofers. This box will fit in trunks, hatchback spaces, and the rear area of most SUVs and vans. Please measure the planned installation location to ensure fit. Key Specifications: for two 12" subwoofers 0.85 cubic feet internal volume (per sub) dimensions: width: 31-7/8" height: 16" bottom depth: 12-3/4" top depth: 7" 1-year warranty Hands-on research from the Crutchfield Labs (what are the Labs?) Features and specs chart | What’s in the box? | In-depth notes Features and Specs Features and Specs General Box Type Loading... Sealed Number of Boxes Loading... 1 Number of Speakers Per Box Loading... 2 Speaker Size Loading... 12 Cutout Diameter or Length (inches) Loading... 11 5/16 Maximum Speaker Depth (inches) Loading... 7-9/16 Box Volume (cubic feet) Loading... 1.7 Tuning Frequency Loading... N/A Height (inches) Loading... 16 Width (inches) Loading... 31-7/8 Depth (inches) Loading... 12-3/4 Second Depth (inches) Loading... 7 Wood Thickness (inches) Loading... 5/8 Speaker Wire Connectors Loading... Spring Post Box Color Loading... Dark Gray Box Finish Loading... Carpet Parts Warranty Loading... 1 Year Labor Warranty Loading... 1 Year Product Research Product Research What's in the box? Download owner's manual Dual hatchback-style enclosure 2 Plastic grilles Four 1-1/2" self-tapping screws (installed in grille) 2 QxE-Rings (installed) Two 2' length of speaker wire (with 0.205" female quick slides on both ends) Sixteen 1" self-tapping screws 2 Pieces of Polyfill batting (22" x 13" each) Instruction/Warranty sheet Instructions addendum 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 Materials: The box is constructed of 5/8" MDF (medium-density fiberboard), with a second MDF panel adhered to the back of the front panel to provide the mounting surface for the woofer. MDF resists flexing and has anti-resonant qualities. Design: The enclosure consists of two 0.85 cu/ft chambers. Each chamber will accept a 12" woofer. For strength, Q-Logic uses a full dado groove on the front, back, top, and bottom panels. The side panels are glued, then locked into these grooves. The edges of the front, back, top and bottom use mitered joints, so there's 50% more surface area for the special glue that bonds them. The side panels of the box are recessed 0.5". The trapezoidal shape of the enclosure better utilizes trunk space by allowing you to put the enclosure against the angled back of the back seat. The enclosure is covered with durable gray carpet. QxE-Ring: The QxE-Ring is a multi-diameter woofer mounting adapter which also seals the woofer into the enclosure. The QxE-Ring has a series of rings around the outside to help center the woofer, and hash marks to help align the woofer's mounting holes. If the mounting diameter of the woofer is 11-1/8" or less, the woofer can be installed without trimming. For woofers with a larger mounting diameter, a portion of the QxE-Ring can be trimmed off, allowing for an extra 3/16" in woofer mounting diameter. Plastic Grille: The one-piece plastic grilles fit into the outer edges of the enclosure openings and are held in place with two self-tapping screws. The grilles offer nearly an inch of "headroom" to accommodate woofers with large roll surrounds. Note: The grille adds approximately 7/8" to the overall depth of the enclosure when mounted. Spring Posts: This enclosure has two sets of spring posts located on the rear of the enclosure. The spring posts will accept bare wire, pin connectors, banana plugs, and dual banana plugs. Brackets: Brackets (not included) are recommended for more secure mounting. Product Reviews 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 * Please include your email* Please enter a valid email address. 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Submit the URL of your YouTube™ video review or product demonstration. e.g., http://www.youtube.com/v/o79TWHh598U 500 characters left Pros * Please limit comments to 500 characters 500 characters left Cons * Please limit comments to 500 characters * 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. Submit Share this product 1-3 of 3 items Sort Results By: Date Reviewed | Rating | Helpfulness 5 out of 5 A little tight, Buts fits just right! Written By Sonoma Guy, Port Charlotte, Fl on Wednesday, October 12, 2005 Having a non-extended cab 2002 Sonoma made it a real challange to set two 12" in there and 1 10" is to lame for me. I found this box and busted out the ruler and in black and white it should fit. I just today via UPS and wow! Crutchfield got it to me really fast, I'm use to waiting and waiting for stuff from other websites. I give Crutchfield 10 stars for fast shipping and having great prices. OK, let me sum this up the install is done and the truck sounds like a million bucks. Sony XAV-A1 head unit, Audiobahn A8002T amp, Q-Logic QLH-.8512DE sealed enclosure, two Audiobahn AW1206T 12" woofers, Boston Acoustics Pro60 6-3/4" Component System,Audiobahn 2040N 4" 2-way Speakers. 1 out of 1 people found this helpful Was this review helpful? Yes | No 5 out of 5 Nice box Written By Chris, Louisville, KY on Wednesday, August 03, 2005 I put two Blaupunkt TSw1200's in this box in my 1997 Grand Prix and I am totally satisfied! I'm not into competition level, so this small setup is perfect for anyone wanting more than the stock system can provide. The bass it tight and really adds to the rock music that I mostly listen to. There's also quite a bit of boom with Rap as well. I previously had 15" Vegas, but the box they were in was too large and I needed to increase my trunk space. With this small thing, I still have the bass for my music and now I can actually use my trunk. Well worth the money!! 1 out of 1 people found this helpful Was this review helpful? Yes | No 5 out of 5 A box is so important. Written By durdagr, Bridgewater, NJ on Friday, June 24, 2005 When you look at all the instruments that make bass in music, they's all usually bigger or have bigger enclosures. It's important to understand that Bass will actually be the result of the box you're subs are in, rather then the subs themselves. I have purchased this Box to go with the Kenwoods KFC's i reviewed.My impressions.This box is heavy! This is an indication of great quality right out of the box, so to speak. The carpeting was impeccable, speaker terminals were very good. The joints were all sealed air tight and vary solid. The speaker cavities had a very nice rubber liner gasket to help seal whatever subs you put in. Poly fill was a nice touch and a necessary addition to any good quality box. Honestly i don't think boxes can come any better made then what's supplied by Q-logic. The bass this enclosure generates is superb, tight, responsive and NOT muddy. Highly recommended. 11 out of 15 people found this helpful Was this review helpful? Yes | No 1-3 of 3 items Learn more about Sealed & Ported Learn more about Sealed & Ported Subwoofer Enclosures Subwoofer Enclosures Crutchfield Writing Team 6/16/2008 based on 236 ratings (37 comments) The type of bass you get from your component subwoofer doesn't depend on the woofer alone. You'll need a strong, tightly constructed enclosure for optimum subwoofer performance. Video: How to Choose a Subwoofer Video: How to Choose a Subwoofer Ken Nail 9/14/2010 based on 374 ratings (6 comments) The first step to choosing a subwoofer actually begins with the enclosure and how you want the sub to perform. In this video we'll tell you about the different types of subwoofer enclosures... Subwoofer Wiring Diagrams Subwoofer Wiring Diagrams Buck Pomerantz 12/12/2011 based on 989 ratings (433 comments) With the wide variety of subwoofers available, it's easy to get confused about the best way to wire up your system. These wiring diagrams will help you find the configuration that'll get the most... Subwoofer Installation Guide Subwoofer Installation Guide Crutchfield Writing Team 6/12/2008 based on 97 ratings (2 comments) This article describes the steps involved in installing a subwoofer in your vehicle. Subwoofer Shopping Guide Subwoofer Shopping Guide Ken Nail 7/13/2008 based on 210 ratings (10 comments) Subwoofers are speakers dedicated solely to reproducing low frequencies. No matter what kind of music you like, or at what volume you listen to it at, they can be a crucial part of your overall... Visit our Learning Center to learn more about Sealed & Ported Accessories Accessories we recommend Box Hardware Keep your sub from rolling around in your trunk by using mounting hardware. Box Brackets $7.99 In Stock Add selected to cart For a more in-depth review and enhanced detailed information on the Q-Logic QLH-.8512DE, please visit the Crutchfield website product page (/ISEO-rccbcspd/p_044H8512DE/Q-Logic-QLH-8512DE.html ).
Our take on the Q-Logic QLH-.8512DE by Steven Johnson Why do I need an enclosure? An enclosure is simply the box that houses your sub; sealed and ported enclosures are the most popular types. A sealed enclosure is usually smaller in size, sacrificing a little volume level to deliver more accurate bass. The ported enclosure features a vent which allows bass waves to escape from behind the mounted sub, augmenting the bass coming off the front of the sub. Ported boxes are louder, bigger, and a little less accurate. Every sub works best in the size and type of enclosure that's recommended by the manufacturer, so make sure you match your sub with the right box. Q-Logic enclosures take the guesswork out of box-building, so you can enjoy great bass without the time-consuming process of constructing your own enclosure. The QLH-.8512DE accommodates two 12" subwoofers in a sturdy housing made entirely of non-resonant medium-density fiberboard. This box features reliable locking-joint construction, and is impeccably upholstered with durable gray carpet. Since subwoofers' basket design and bolt patterns vary by brand, Q-Logic's ingenious QxE seal ring allows you to customize the box opening for virtually every woofer available. Plus, a cool-looking, one-piece grille works even with woofers that have large roll surrounds, so you get solid protection and sharp looks. The box comes with two grilles (with screws), two sets of spring posts, polyester fiber stuffing, and speaker leads with quick-slides for easy connection to your woofers. This box will fit in trunks, hatchback spaces, and the rear area of most SUVs and vans. Please measure the planned installation location to ensure fit. Key Specifications: for two 12" subwoofers 0.85 cubic feet internal volume (per sub) dimensions: width: 31-7/8" height: 16" bottom depth: 12-3/4" top depth: 7" 1-year warranty
Hands-on research from the Crutchfield Labs (what are the Labs?) Features and specs chart | What’s in the box? | In-depth notes Features and Specs Features and Specs General Box Type Loading... Sealed Number of Boxes Loading... 1 Number of Speakers Per Box Loading... 2 Speaker Size Loading... 12 Cutout Diameter or Length (inches) Loading... 11 5/16 Maximum Speaker Depth (inches) Loading... 7-9/16 Box Volume (cubic feet) Loading... 1.7 Tuning Frequency Loading... N/A Height (inches) Loading... 16 Width (inches) Loading... 31-7/8 Depth (inches) Loading... 12-3/4 Second Depth (inches) Loading... 7 Wood Thickness (inches) Loading... 5/8 Speaker Wire Connectors Loading... Spring Post Box Color Loading... Dark Gray Box Finish Loading... Carpet Parts Warranty Loading... 1 Year Labor Warranty Loading... 1 Year Product Research Product Research What's in the box? Download owner's manual Dual hatchback-style enclosure 2 Plastic grilles Four 1-1/2" self-tapping screws (installed in grille) 2 QxE-Rings (installed) Two 2' length of speaker wire (with 0.205" female quick slides on both ends) Sixteen 1" self-tapping screws 2 Pieces of Polyfill batting (22" x 13" each) Instruction/Warranty sheet Instructions addendum 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 Materials: The box is constructed of 5/8" MDF (medium-density fiberboard), with a second MDF panel adhered to the back of the front panel to provide the mounting surface for the woofer. MDF resists flexing and has anti-resonant qualities. Design: The enclosure consists of two 0.85 cu/ft chambers. Each chamber will accept a 12" woofer. For strength, Q-Logic uses a full dado groove on the front, back, top, and bottom panels. The side panels are glued, then locked into these grooves. The edges of the front, back, top and bottom use mitered joints, so there's 50% more surface area for the special glue that bonds them. The side panels of the box are recessed 0.5". The trapezoidal shape of the enclosure better utilizes trunk space by allowing you to put the enclosure against the angled back of the back seat. The enclosure is covered with durable gray carpet. QxE-Ring: The QxE-Ring is a multi-diameter woofer mounting adapter which also seals the woofer into the enclosure. The QxE-Ring has a series of rings around the outside to help center the woofer, and hash marks to help align the woofer's mounting holes. If the mounting diameter of the woofer is 11-1/8" or less, the woofer can be installed without trimming. For woofers with a larger mounting diameter, a portion of the QxE-Ring can be trimmed off, allowing for an extra 3/16" in woofer mounting diameter. Plastic Grille: The one-piece plastic grilles fit into the outer edges of the enclosure openings and are held in place with two self-tapping screws. The grilles offer nearly an inch of "headroom" to accommodate woofers with large roll surrounds. Note: The grille adds approximately 7/8" to the overall depth of the enclosure when mounted. Spring Posts: This enclosure has two sets of spring posts located on the rear of the enclosure. The spring posts will accept bare wire, pin connectors, banana plugs, and dual banana plugs. Brackets: Brackets (not included) are recommended for more secure mounting.
5 out of 5 A little tight, Buts fits just right! Written By Sonoma Guy, Port Charlotte, Fl on Wednesday, October 12, 2005 Having a non-extended cab 2002 Sonoma made it a real challange to set two 12" in there and 1 10" is to lame for me. I found this box and busted out the ruler and in black and white it should fit. I just today via UPS and wow! Crutchfield got it to me really fast, I'm use to waiting and waiting for stuff from other websites. I give Crutchfield 10 stars for fast shipping and having great prices. OK, let me sum this up the install is done and the truck sounds like a million bucks. Sony XAV-A1 head unit, Audiobahn A8002T amp, Q-Logic QLH-.8512DE sealed enclosure, two Audiobahn AW1206T 12" woofers, Boston Acoustics Pro60 6-3/4" Component System,Audiobahn 2040N 4" 2-way Speakers. 1 out of 1 people found this helpful Was this review helpful? Yes | No
5 out of 5 Nice box Written By Chris, Louisville, KY on Wednesday, August 03, 2005 I put two Blaupunkt TSw1200's in this box in my 1997 Grand Prix and I am totally satisfied! I'm not into competition level, so this small setup is perfect for anyone wanting more than the stock system can provide. The bass it tight and really adds to the rock music that I mostly listen to. There's also quite a bit of boom with Rap as well. I previously had 15" Vegas, but the box they were in was too large and I needed to increase my trunk space. With this small thing, I still have the bass for my music and now I can actually use my trunk. Well worth the money!! 1 out of 1 people found this helpful Was this review helpful? Yes | No
5 out of 5 A box is so important. Written By durdagr, Bridgewater, NJ on Friday, June 24, 2005 When you look at all the instruments that make bass in music, they's all usually bigger or have bigger enclosures. It's important to understand that Bass will actually be the result of the box you're subs are in, rather then the subs themselves. I have purchased this Box to go with the Kenwoods KFC's i reviewed.My impressions.This box is heavy! This is an indication of great quality right out of the box, so to speak. The carpeting was impeccable, speaker terminals were very good. The joints were all sealed air tight and vary solid. The speaker cavities had a very nice rubber liner gasket to help seal whatever subs you put in. Poly fill was a nice touch and a necessary addition to any good quality box. Honestly i don't think boxes can come any better made then what's supplied by Q-logic. The bass this enclosure generates is superb, tight, responsive and NOT muddy. Highly recommended. 11 out of 15 people found this helpful Was this review helpful? Yes | No
Learn more about Sealed & Ported Learn more about Sealed & Ported Subwoofer Enclosures Subwoofer Enclosures Crutchfield Writing Team 6/16/2008 based on 236 ratings (37 comments) The type of bass you get from your component subwoofer doesn't depend on the woofer alone. You'll need a strong, tightly constructed enclosure for optimum subwoofer performance. Video: How to Choose a Subwoofer Video: How to Choose a Subwoofer Ken Nail 9/14/2010 based on 374 ratings (6 comments) The first step to choosing a subwoofer actually begins with the enclosure and how you want the sub to perform. In this video we'll tell you about the different types of subwoofer enclosures... Subwoofer Wiring Diagrams Subwoofer Wiring Diagrams Buck Pomerantz 12/12/2011 based on 989 ratings (433 comments) With the wide variety of subwoofers available, it's easy to get confused about the best way to wire up your system. These wiring diagrams will help you find the configuration that'll get the most... Subwoofer Installation Guide Subwoofer Installation Guide Crutchfield Writing Team 6/12/2008 based on 97 ratings (2 comments) This article describes the steps involved in installing a subwoofer in your vehicle. Subwoofer Shopping Guide Subwoofer Shopping Guide Ken Nail 7/13/2008 based on 210 ratings (10 comments) Subwoofers are speakers dedicated solely to reproducing low frequencies. No matter what kind of music you like, or at what volume you listen to it at, they can be a crucial part of your overall... Visit our Learning Center to learn more about Sealed & Ported
Subwoofer Enclosures Subwoofer Enclosures Crutchfield Writing Team 6/16/2008 based on 236 ratings (37 comments) The type of bass you get from your component subwoofer doesn't depend on the woofer alone. You'll need a strong, tightly constructed enclosure for optimum subwoofer performance.
Video: How to Choose a Subwoofer Video: How to Choose a Subwoofer Ken Nail 9/14/2010 based on 374 ratings (6 comments) The first step to choosing a subwoofer actually begins with the enclosure and how you want the sub to perform. In this video we'll tell you about the different types of subwoofer enclosures...
Subwoofer Wiring Diagrams Subwoofer Wiring Diagrams Buck Pomerantz 12/12/2011 based on 989 ratings (433 comments) With the wide variety of subwoofers available, it's easy to get confused about the best way to wire up your system. These wiring diagrams will help you find the configuration that'll get the most...
Subwoofer Installation Guide Subwoofer Installation Guide Crutchfield Writing Team 6/12/2008 based on 97 ratings (2 comments) This article describes the steps involved in installing a subwoofer in your vehicle.
Subwoofer Shopping Guide Subwoofer Shopping Guide Ken Nail 7/13/2008 based on 210 ratings (10 comments) Subwoofers are speakers dedicated solely to reproducing low frequencies. No matter what kind of music you like, or at what volume you listen to it at, they can be a crucial part of your overall...
Accessories Accessories we recommend Box Hardware Keep your sub from rolling around in your trunk by using mounting hardware. Box Brackets $7.99 In Stock Add selected to cart
