Specifications 36" Width x 16" Height x 23.5" Depth Usable Airspace 4.75 Cubic Feet Net(2.375 cu/ft net EACH) Total Airspace 7.83 Cubic Feet Gross Tuning Frequency 32 Hertz PeakFrequency Range 20-60 Hertz (bandwidth)JL Audio 13w7 JL Audio 13w7AE | Description This custom birch slot ported enclosure is designed with proper airspace, port tuning, and subwoofer mounting for TWO JL Audio 13w7. This dual subwoofer box is tuned at 32 hz for optimum sound quality and output. Triple baffle face (2.25" Thick!) ensures strength and high power efficiency (don't waste power, get the most from your batteries and amp!). JL Audio's logo engraved on top. Our signature 'Flower of Life' window brace guarantees efficient airflow and structural integrity. Option to customize your port and carpet colors after checkout. Default enclosure colors are dark gray carpet with a black port or choose from 27 gloss port colors and 3 carpet colors. For further custom options including engravings, inlays, tuning options, plexi-windows and more contact us at! |
Order Instructions
After checkout, include carpet color (black/dark grey/light grey), port color choice, and speaker model via eBay message or in "notes to seller" section.
Allow 1-3 week build time before shipping
6 Month Return Policy
You may return your enclosure within 6 months of purchase. Enclosure must be uninstalled and in original condition. All returns require a ‘Return Authorization’ number. Please contact us to receive your RA number before shipping your return.
2-Year Warranty
Enclosures may be returned for repair within 2 years of purchase.
High Output Enclosures
The Peak Tuning Frequency does not determine how “low” or “high” the enclosure will play. There are many mathematical variables that determine the overall frequency response of an enclosure. Our ported enclosures will reproduce frequencies well above and below the Peak Tuning Frequency with authority! Customers typically experience a 20 - 60 Hertz Bandwidth.
Stronger, Louder, and Lower Than the Competition
Years of real world experience removes guess work
The perfect balance of SPL and SQL
Unparalleled LOW bass reproduction
Engineered for the widest frequency response
Every enclosure is made to order and proudly handcrafted in the USA
3/4" Cabinet Grade Birch Wood made in the USA
All of our materials are sourced within the USA
Rounded and 45 degree bracing
Doubled Woofer Baffle included for superior strength (1.5" Thick)
Competition proven
Free Shipping in 48 States
Birch vs MDF: 3x Stronger & 40% Lighter
There are key advantages for using Birch wood. Birch has a much higher Modulus of Elasticity (stress to strain ratio) making it 3 times stronger than MDF. Many manufactures use Chinese MDF, which is even weaker and softer than conventional MDF. Customers also love the weight reduction. Weighing 40% less, Birch is ideal for both the performance and fuel economy minded.
T/S Parameters: The “DNA” of Subwoofers
Each of our enclosures is engineered using the T/S Parameters (electromechanical measurements) of the subwoofer(s). These are the unique characteristics that determine how it will sound and perform. For example, the strength of a magnet (motor) is called the “BL” and is measured in Tesla Meters. The “FS” is the specific frequency at which all moving parts of the speaker resonate or sympathize. The “Xmax” is the actual linear distance the cone travels, also known as “excursion”. Our full understanding of T/S Parameters and years of real world experience will unlock the full potential of your subwoofer system. We will find the T/S Parameters for you; simply give us the model of the subwoofer(s), and we will take care of the rest.
Friends Don’t Let Friends Buy Pre-fab's
Any seasoned audio enthusiast will tell you "It's all about the box." Experience 2-4 times the output of any pre-made speaker box on the market. Pre-made speaker boxes (pre-fab's) are generic, structurally weak, poorly tuned, and below recommended airspace. A subwoofer in a prefab enclosure will perform poorly overall in frequency response but especially on the "super-low" bass found in today's music (below 40 Hertz). This results in a very "muddy" and "boomy" sound, not to mention a complete loss of bass in half of your music collection. Remember: a subwoofer will only sound as good as it's enclosure, regardless of how deep your pockets are. Don’t be a victim of the small ports!
Ported Enclosures = More Output & Control
Subwoofers radiate sound waves in both directions, Front and Rear. Without a box these sound waves cancel out each other (interference). A sealed box separates these sound waves by trapping the Rear Wave allowing the Front Wave to pressurize your listening environment (vehicle cabin). A properly tuned ported enclosure will reverse the Rear Wave to match the Front Wave. Just like a subwoofer, the properly tuned port acts as a radiating surface. This significant increase in output and control over the woofer makes our custom enclosures extremely efficient.
Questions or Ideas? Contact our knowledgeable staff today to discuss your best options.
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No subwoofer included in this sale.