DB Drive EUPHORIA EW9 User manual

EUPHORIA : EW9

Dual 4 Ω Subwoofer

USER MANUAL

Installation Instructions | Owners Manual

Due to continuous improvement of the product, specifications are subject to change without notice.

Introduction

Congratulations on your purchase of a DB Drive state-of-the-art subwoofer. Your selection of a

DB Drive car audio product indicates a true appreciation of fine musical reproduction. Whether

adding to an existing system or including your DB Drive subwoofer in a new system, you are

certain to notice immediate performance benefits.

Keep Your Sales Receipt

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 to

establish purchase date.

Recommendation

A power subwoofer’s performance is only as good as its installation. Proper installation will max-

imize the system’s overall performance. It is recommended that you have our product installed

by an authorized DB Drive retailer. However, if you decide to install it yourself, please carefully

read through this manual and take your time to do a quality installation.

IMPORTANT!

Before making any connections, disconnect the car’s battery until the installation is

completed to avoid possible damage to the electrical system.

WARNING!

Exposure to high power sound system can cause hearling loss or damange. Listening

to your system at loud levels while driving will impair your ability to hear traffic sounds

and emergency vehicles. Use common sense when listening to your system.

S e r i a l # ____________________________________ _M o d e l # ___________________________________

PRODUCT SPECIFICATIONS

TS Specs

EW9 12D4 EW9 15D4

Sensitivity 1W/1m) SPL 85.68 dB 87.86 dB

DC Resistance Re 3.20 Ω x 2 3.20 Ω x 2

Inductance Le 2.15 mH 2.59 mH

Free Air Resonance Fo 31.39 Hz 27.39 Hz

Equivalent Stiffeness Vas 39.17 Ltr 116.155 Ltr

Mechanical Q Qms 4.4 6.03

Electrical Q Qes 0.5 0.57

Total Q Qts 0.45 0.52

Moving Mass Mms 246.86 g 310.59 g

Motor Force BL 24.94 TM 24.16 TM

Cone Surface Area Sd 51.47m SqM 85.53m SqM

Linear Excursion (1-way) Xmax 15 mm 15 mm

Mechanical Excursion (Peak-Peak) Xmech 29 mm 30mm

Driver Displacement Disp 0.154 cuft 0.249 cuft

8.63in / 219.2 mm

7.72in / 196 mm

6.93in / 176 mm

14.01in / 356 mm

8.30in / 210 mm

15.27 in / 388 mm

7.33in / 186.3 mm

6.47in / 164.3 mm

7.04 in / 178.8 mm

6.93in / 176 mm

12.18 in / 309.5 mm

11.06in / 281 mm

MECHANICAL MEASUREMENTS

EW9 15D4

EW9 12D4

CALCULATING ENCLOSURES

It is difficult to give 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 air volume required.

It is recommended to build your enclosure from 3/ 4” thick MDF (medium density fiberboard).

Make sure the enclosure is sealed airtight.

Calculating External Volume

To calculate box volume, measure the outside Width x Height x Depth of

the enclosure. Example 12” x 14” x 9”=1512 ÷ 1728” Cubic feet

Next you must convert cubic inches into cubic feet. To do this, you must

divide the cubic inches total by 1728”. Example 1512 ÷ 1828=.875 Cubic feet

Calculating Internal Volume

To calculate the internal (net) volume of the above box you must first multiply

the thickness of the wood you are using by Two(2). Example 3/4” x 2= 1.5“

Next subtract 1.5 from each of the outside measurements of the box.

Width Height Depth

12 - 1.5 = 10.5 14 - 1.5 = 12.5 9 - 1.5 = 7.5

Multiple the new totals (H x W x D) Example: 10.5 x 12.5 x 7.5 = .5696

Next you must convert cubic inches into cubic feet. To do this, you must

divide the cubic inch total by 1728”. Example 984.375 ÷ 1728=.5696

cubic feet.

RECOMMENDED ENCLOSURES

Sealed Box Range 1.75 - 2.5 cuft

Recomended Sealed Box 2.13 cuft

External Box Dimentions 24” W x 14.5” H x 14” D

Gross Internal Volume 2.13 cuft

Net Internal Volume 1.98 cuft

Sealed Box Range 2.75 - 3.75 cuft

Recomended Sealed Box 3.23 cuft

External Box Dimentions 22” W x 18” H x 18” D

Gross Internal Volume 3.23 cuft

Net Internal Volume 3.01 cuft

Vented Box Range 2.5 - 3.5 cuft

Recomended Vented Box 2.95 cuft

External Box Dimentions 28” W x 15” H x 15.75” D

Gross Internal Volume 2.95 cuft

Net Internal Volume 2.6 cuft

Vent dimentions 2 x 4” Diameter

Vent surface area 25.14 in2

vent length 14”

vent tuning 38Hz

Vented Box Range 3.0 - 4 cuft

Recomended Vented Box 3.5 cuft

External Box Dimentions 24” W x 18” H x 18” D

Gross Internal Volume 3.54 cuft

Net Internal Volume 3.13 cuft

Vent dimentions 2 x 4” Diameter

Vent surface area 25.14 in2

vent length 13”

vent tuning 35Hz

EW9 12D4

EW9 15D4

WIRING DIAGRAMS

8 Ohm

2 Ohm

4 Ohm

1 Ohm

2.6 Ohm

6 Ohm

LIMITED WARRANTY

DB Drive warrants any products purchased in the U.S.A.

from an authorized DB Drive dealer. All products are warranted to be free from

defects in material and workmanship under normal use and service for a peri-

od of one (1) year. This warranty applies to the original purchase only.

DB Drive will either repair or replace (as its option) any unit that has been

found to be defective and under warranty provided the defect occurs within

the one (1) year warranty period.

This limited warranty does not extend to units have been subjected to misuse,

abuse, neglect, or accident. In DB Drive’s judgment, products that show evi-

dence of having been altered, modified, or serviced without DB Drive’s authori-

zation, will be ineligible under this warranty.

To obtain warranty service please contact your retailer or visit our website at

www.dbdrive.net for more details.

302 Hanmore Industrial Parkway Harlingen, TX 78550

Phone (877) 787-0101 : Fax (956) 421-4513 : www.DBDrive.net

™

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