Subwoofer db

INTRODUCTION

Congratulations on your purchase of a DB Drive state-of-the-art subwoofer component. Your selection of a DB Drive car audio product indicates a true appreciation of fine musicalreproduction. Whether adding to an existing system or including a DB Drive subwoofer in a new system, you are certain to notice immediate performance benefits.

PRODUCT SPECIFICATIONS
K9 10D4 K9 12D225.50Hz 0.38 4.45 40.57L 0.98in 3.83Ω 1000/2000 0.42 83.95dB K9 12D4 27.52Hz 0.45 4.38 37.73L 0.98in 6.43Ω 1000/2000 0.50 83.85dB K9 15D2 24.07Hz 0.45 4.61 81.10L 0.98in 3.83Ω 1000/2000 0.50 85.43dB K915D4 24.31Hz 0.50 4.52 90.98L 0.98in 6.46Ω 1000/2000 0.56 85.55dB

(FS) (Qts.) (Qms) (VAS) (Xmax) (Re) (Pe) (QES)

30.29Hz 0.43 4.57 14.44L 0.98in 6.43Ω 1000/2000 0.47 81.13dB

KEEP YOUR SALESRECEIPT
Take this time to attach your sales receipt to the manual and put in a safe place. In case of any unforeseen reason this product may need warranty service, your receipt will be necessary toestablish purchase date. For detailed warranty information please refer to enclosed warranty card.

RECOMMENDATION
A speaker’s performance is only as good as it’s enclosure. Proper installation,enclosure size and crossover frequency will maximize the overall performance of the subwoofer. To properly design and build an enclosure, knowledge of woodworking as well as the proper tools are required.We highly recommend that you have your enclosure built by an authorized DB Drive retailer. However, if you decide to install it yourself, we have included the parameters of each driver andrecommended enclosure sizes. If after reviewing the enclosed information you have any addition questions, please feel free to contact our technical dept.

(Sens)

CALCULATING ENCLOSURES
It is difficult togive exact box dimensions that are universal for all cars and trucks. It is for this reason that you must be able to calculate the space in which you have available in order to achieve the proper...