DS18 MP4 4 Inch Marine and Powersports Coaxial Speaker Owner’s Manual

: June 5, 2024
: DS18

Table of Contents

PACKAGING INCLUDES
SPECIFICATIONS
SPEAKER MEASUREMENTS
Documents / Resources

OWNER’S MANUAL
MP4
4″ MARINE & POWERSPORTS
COAXIAL SPEAKER
WE LIKE IT LOUD

PACKAGING INCLUDES

After you have unpacked the speaker system, check all the contents of the package so it contains all of the items below.
If something is missing, please call us.

1 Pair MP4 Coaxial Speakers
Speakers Connection Wires
User’s Manual

SAFETY CONSIDERATIONS
While we have designed the mounting system to provide a safe and stable installation, it is important to remember these are objects that will be used in an environment that is extremely bumpy and turbulent. Please consider all possible scenarios where these will be placed and secured.

WIRING

Connect the red and black cables to their respective positive and negative terminals.
Speakers “A” and “B” connect to an amplifier source “C”.

SPECIFICATIONS

GENERAL SPECIFICATIONS
Nominal Diameter ……………………………………. 4″
Nominal Impedance ……………………………… 4 Ohm
RMS Power Handling ……………………………. 50 Watts
MAX Power Handling ………………………….. 150 Watts
Sensitivity (1w/1m) ……………………………… 90 dB
Frequency Response …………………………….. 60Hz-20KHz
Recommended Hi Pass Crossover ……….. 80Hz

BODY – FEATURES
UV Compliant ……………………..Yes
UV Compliant ……………………. Yes
Marine Grade Type …………….. IPX5
Grill Type ……………………………..Injection PC + ABS
Marine Grade Type …………….. IPX5
Grill Type………………………………Injection PC + ABS
Pair …………………………………… Yes
Pair ………………………………….. Yes

WOOFER SPECIFICATIONS
Voice Coil Diameter ……………..1″ / 25.4mm
VC Former Material ……………. KSV
Winding Material ………………… PEPSV
Cone Material ………………………Injection Molded Polypropylene + UV Compliant
Surround Material ……………… Butyl (Rubber)
Basket Material …………………. Steel with Salt Protection Coating
Magnet Material ……………….. Ferrite
Magnet Weight ………………….11 oz

TWEETER SPECIFICATIONS
Voice Coil Diameter …………………..1″ / 25mm
Voice Coil Former Material ………. ASV
Winding Material……………………… CCA
Type ………………………………………..Dome
Diaphragm Material ……………….. PEI
Magnet Material ……………………..Neodymium
Magnet Weight ……………………… 45g
Crossover…………………………. 6dB/Oct

FOR ALL ELEMENTS

THIELE & SMALL PARAMETERS
Equivalent Volume …………………………………….Vas / 3.22L / 0.119ft3
Excursion (one way) ………………………………… Xmax / 2 mm
Free Air Resonance ………………………………… Fs / 80Hz
Mechanical Factor ………………………………….. Qms / 4.541
Electrical Factor ……………………………………… Yes / 0.631
Total Factor ……………………………………………… Qty / 0.554
DC Resistance ………………………………………….. Re / 3.6 Ohm

SPEAKER MEASUREMENTS

Overall Diameter …………………………5.43″ / 138mm
Overall Depth …………………………….3″ / 77mm
Front Mount Baffle Cutout ……… 4.1″ / 104mm
Mounting Depth ………………………..2″ / 51mm
Motor Diameter ………………………. 3.14″ / 80mm

COLORS AVAILABLE
Matte Black(MP4/BK)
Matte White (MP4/WH)

We reserve the right to change products and specifications at any time without notice.
Images may or may not include optional equipment. FOR MORE INFORMATION
PLEASE VISIT
DS18.COM
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Documents / Resources

| DS18 MP4 4 Inch Marine and Powersports Coaxial Speaker [pdf] Owner's Manual
MP4 4 Inch Marine and Powersports Coaxial Speaker, MP4, 4 Inch Marine and Powersports Coaxial Speaker
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