About the Q-Logic QLH-.8512DE
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)
- width: 31-7/8"
- height: 16"
- bottom depth: 12-3/4"
- top depth: 7"
- 1-year warranty
What's in the box:
- 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
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More details on the Q-Logic QLH-.8512DE
Features & specs
|Number of Boxes||1|
|Number of Speakers Per Box||2|
|Cutout Diameter or Length (inches)||11 5/16|
|Maximum Speaker Depth (inches)||7-9/16|
|Box Volume (cubic feet)||1.7|
|Second Depth (inches)||7|
|Wood Thickness (inches)||5/8|
|Speaker Wire Connectors||Spring Post|
|Box Color||Dark Gray|
|Parts Warranty||1 Year|
|Labor Warranty||1 Year|
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.
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
Brackets: Brackets (not included) are recommended for more secure mounting.
The Q-Logic QLH-.8512DE replaces these items