Car Audio Subwoofer Bass Speaker Version 3 12"/300mm Driver 4-ohm 12w3v3-4 New on 2040-parts.com

Enclosure Notes
* The enclosure recommendations listed above are external dimensions which assume the use of 0.75 in (19 mm) thick material. If you are using 0.625 in (16 mm) thick material, subtract 0.25 in (6.5 mm) from each dimension. Do not use any material with a thickness of less than 0.625 in (16 mm) as this may compromise the rigidity of the enclosure.
* All enclosure volumes listed above are net internal volumes! Driver displacement, port displacement and brace displacement must be added to obtain the final gross internal volume. All enclosure dimensions above have already taken this into account.
* When using multiple subwoofers in a common enclosure you will need to recalculate the enclosure and port dimensions. For assistance please contact your authorized JL Audio dealer or JL Audio Technical Support.
* We recommend the use of this speaker in a bi-amplified system using high-quality satellite speakers and a high-quality amplifier. We do not recommend the use of this subwoofer with a passive crossover (coil), as this type of device will adversely affect performance.
* All specifications are subject to change without notice.

Safety Notice
Prolonged exposure to sound pressure levels in excess of 100dB can cause permanent hearing loss. This high-performance speaker can exceed this level. Please exercise restraint in its operation in order to preserve your ability to enjoy its fidelity.

When installing a subwoofer in your vehicle, it is extremely important to secure the enclosure firmly. We recommend bolting the enclosure through the metal of the floorpan or the frame of the vehicle with large diameter washers for reinforcement. If an enclosure is not firmly attached, it can become a projectile in a collision. This is particularly important in a hatchback, station wagon, sports utility vehicle, or van.

SHIPPING, RETURN & EXCHANGE POLICY

The item must be in original, unused condition and must be returned in the original packaging.
We are unable to accept any item that has been installed and/or damaged. In addition, we cannot accept return items that are not in the original packaging. 
These are constraints set by product manufacturers and we are obligated to honor their policies on returns. Items returned in poor condition or having parts missing will not be credited.

Return shipping charges must be paid by the customer.

Item Shipping Protection
The item/items must be fully insured.
The customer is responsible for providing shipping insurance that covers the full price of any item(s) being returned.