Dual DMS651 Operating instructions

MARINE
INSTALLATION/OWNERS MANUAL
DMS655SM
DMS692
DMS652
DMS651
DMS SERIES
Marine Speakers

2
DMS SERIES PREPARATION
Getting Started
Safety
This symbol with “CAUTION” is intended to alert the user
to the presence of important instructions. Failure to heed
the instructions can result in injury or unit damage.
To prevent injury and damage to the unit, please read and
follow the instructions in this manual.
If you feel unsure about installing this system yourself,
have it installed by a qualified audio technician.
Before installation, disconnect the battery negative (-)
terminal to prevent damage to the unit, fire and/or
possible injury.
Thanks for choosing Dual. This manual is designed to provide information for
the purchaser of Dual Marine products. Dual has attempted to make sure
all the information in this manual is current. But, this information is subject
to change without notice.

3
DMS SERIES INSTALLATION
Installation
Please Note: This manual covers multiple models. Parts of the following
instructions may not apply to your installation.
The installation instructions included here are basic. If you feel
unsure about personally installing the speaker system. Dual
recommends that you seek installation by a qualified
sound technician.
Before installation, please follow the following rules:
1. Be sure to carefully read and understand the instructions
beforeattempting to install the product.
2. For safety, disconnect the negative lead from the battery prior to beginning
the installation.
3. For easier assembly, we recommend that if additional wiring is required,
that you run all wires prior to mounting your speaker in place.
4. Use the highest quality connectors for a reliable installation and to
minimize signal or power loss.
5. Use caution before you drill or cut! Be careful not to cut or drill into gas
tanks, fuel lines, hydraulic lines, vacuum lines or electrical wiring when
working on any vessel.
6. Never run speaker wires underneath or on the exgterior of your vessel.
Running speaker wires inside provides the best protection from
environmental elements.
7. Avoid running wires over, near, or through sharp edged surfaces. We
suggest you also use rubber grommets to protect any wires routed
through metal or fiberglass.
8. When running the speaker cable from the receiver or amplifier, avoid
running it near sources of high current (i.e. wiring harnesses, battery
cables).
9. The positive (+) speaker output from the receiver or amp connects to the
red terminal of the enclosure, and the negative (-) connects to the black
terminal.

4
DMS SERIES SPECIFICATIONS
Features & Specifications
DMS692
6 X 9” COAXIAL MARINE SPEAKER
• Magnetically Shielded
• Santopren rubber surround
• UV impregnated ABS heat-resistant weatherproof grilles
• One-piece cast ABS basket
• Recommended amplifier power 10-80 watts RMS, 200 watts Peak
• Requires 3.82”" of mounting depth and 5.75”x8.80” cutout
Sensitivity: 94dB
Frequency Response: 55Hz – 22 kHz
Tweeter: 25 mm Dome Ferrofluid Neo
Woofer: 6x9” Poly - 20 oz Magnet with 2 Layer Voice Coil
Impedance: 4 ohm nominal
Dimensions: Diameter 7.75”x10”
Note: All specifications are subject to change without notice.
DMS655SM
6.5” SURFACE MOUNT MARINE SPEAKER
• Magnetically Shielded
•Santopren rubber surround
•UV impregnated ABS heat-resistant weatherproof enclosure and Grille
• One-piece cast ABS basket
• Recommended amplifier power 10-65 watts RMS, 175 watts Peak
• Easily converts from surface mount to flush mount
Sensitivity: 93dB
Frequency Response: 60 Hz – 20 kHz
Tweeter: 19 mm Silk Dome Ferrofluid Neo
Woofer: 6.5” Poly - 11 oz Magnet with 2 Layer Voice Coil
Impedance: 4 ohm nominal
Dimensions: Enclosure (HxWxD) 7.5”x7.25”x5.13”

Features & Specifications
5
DMS SERIES SPECIFICATIONS
Note: All specifications are subject to change without notice.
DMS651
6.5” DUAL CONE MARINE SPEAKER
• Magnetically Shielded
• Rubber surround
• UV impregnated ABS heat-resistant weatherproof grilles
• Durable Lightweight ABS basket
• Recommended amplifier power 10-60 watts RMS, 150 watts Peak
• Requires 3.45" of mounting depth and 5.63” cutout diameter
Sensitivity: 90dB
Frequency Response: 65Hz – 18 kHz
Woofer: 6.5” Poly - 11 oz Magnet
Dual Cone: Mylar
Woffer Cone: Polypropylene
Impedance: 4 ohm nominal
Dimensions: Diameter 7.25”
DMS652
6.5” COAXIAL MARINE SPEAKER
• Magnetically Shielded
• Santopren rubber surround
• UV impregnated ABS heat-resistant weatherproof grilles
• One-piece cast ABS basket
• Recommended amplifier power 10-65 watts RMS, 175 watts Peak
• Requires 3.45" of mounting depth and 5.63” cutout diameter
Sensitivity: 93dB
Frequency Response: 65Hz – 20 kHz
Tweeter: 19 mm Silk Dome Ferrofluid Neo
Woofer: 6.5” Poly - 11 oz Magnet with 2 Layer Voice Coil
Impedance: 4 ohm nominal
Dimensions: Diameter 7.25”

6
DMS SERIES GUIDELINES
Guidelines
We recommend that you will have the best results by consulting a professional installer,
but If choosing to do your own installation, please note the following:
• Make sure all moving parts and factory electrical wires are out of your way and will not
interfere after installation.
• Leave a little slack in the wire to prevent pulling or stretching.
• Use adhesive backed tie downs and wire clamps to prevent the wires from getting
caught or shorted.
• Correct speaker polarity must be observed. The polarity positive side is marked by a
(+) sign or red. Speaker that are out-of-phase will have little bass output.
• Speaker wire should be isolated from the vessel’s electrical system to avoid noise
being picked up by the receiver or amplifier.
• Speaker wire should be large enough to carry the full power of your amplifier. 14 gauge
or larger sizes are adequate.
• Be sure to give your ears consideration. Listening to loud music for extended periods
can possibly damage your hearing!
TYPICAL INSTALLATION METHOD

7
Limited One-Year Warranty
This warranty gives you specific legal rights.
You may also have other rights which vary from
state to state.
Namsung America Inc. warrants this product to
the original purchaser to be free from defects in
material and workmanship, under normal
conditions, for a period of one year from the date
of the original purchase.
Namsung America agrees, at our option, during
the warranty period, to repair any defect in
material or workmanship or to furnish an equal
new or renewed product in exchange without
charges, subject to verification of the defect or
malfunction and proof of the date of purchase.
During the One-Year Warranty Period: For One
Year from the date of purchase, your product will
be replaced with a new, renewed or comparable
product (whichever is deemed necessary) if it
becomes defective or inoperative. This is done
without charge to you. Replacement products
are warranted for the balance of the original
warranty period.
Who is covered? This warranty is extended to
the original retail purchaser for products
purchased and used in the U.S.A., in the 48
contiguous states ONLY.
What is covered? This warranty covers all
defects in material and workmanship in this
product. The following are not covered:
installation/removal costs, damage resulting
from accident, misuse, abuse, neglect, product
modification, improper installation, incorrect line
voltage, unauthorized repair or failure to follow
instructions supplied with the product, or
damage occurring during return shipment of the
product.
What to do? If the product requires warranty
service, you must prepay the initial shipping
charges. DUAL will pay the return shipping
charges if the product is returned to an address
within the USA.
Namsung America Inc.
Attn: Returns Center
21318 64th Ave. South
Kent, WA 98032 U.S.A.
Toll Free: 1-866-626-7863
Exclusion of Certain Damages: This warranty is
exclusive and in lieu of any and all other
warranties, expressed or implied, including
without limitation the implied warranties of
merchantability and fitness for a particular
purpose and any obligation, liability, right, claim
or remedy in contract or tort, whether or not
arising from the company’s negligence, actual or
imputed. No person or representative is
authorized to assume for the company any other
liability in connection with the sale of this
product. In no event shall the company be liable
for indirect, incidental or consequential
damages.
DMS SERIES WARRANTY
Note: All specifications are subject to change without notice.

Namsung America Inc.
21318 64th Ave. South
Kent, WA 98032 U.S.A.
Toll Free: 1-866-626-7863
©2003 Namsung America, Inc.
EVOK0603-V01