Product Overview

Description

SPECS

SKU
ZXI12.4D
Nominal Diameter
12" / 304.8mm
Nominal Impedance
4 + 4 ohms
RMS Power Handling
1000W
Maximum Power Handling
2000W
Sensitivity (1w/1m)
89.2dB
Frequency Response
15Hz-1.8KHz
Recommended Lo Pass Crossover
90Hz


MOTOR

Voice Coil Diameter
3" / 76.2mm
Voice Coil Former Material
Black Aluminum
Winding Material
CCAW
Cone Material
Non-Pressed Paper
Dust Cap Material
PPI
Surround Material
Foam
Basket Material
Aluminum
Basket Color/Finish
Black Sandblasted
Magnet Material
Ferrite
Magnet Weight
224 Oz (4 x 56 oz)
Displacement Volume
3.99L / 0.14 ft3


THIELE & SMALL PARAMETERS

Equivalent Volume Vas
15.63L / 0.55ft3
Free Air Resonance Fs
31Hz
Mechanical Factor Qms
5.274
Electrical Factor Qes
0.594
Total Factor Qts
0.534
Moving Mass Mms
238.433g
Compliance Cms
0.065mm/N
Bl Factor Bl
14.55
Voice Coil Inductance Le
12.89 mH
Diaphragm Area Sd
530.93cm2
DC Resistance Re
4.0+4.0 ohms
Efficiency Bandwidth Product EBP
52.1


RECOMMENDED ENCLOSURES

Sealed Internal Volume
21.2L / 0.75ft3
Sealed Box Output Response F3
42Hz
Ported Internal Volume
39.6L / 1.4ft3
Port Size *Square (W x H x Long)
1.23" x 12.28" x 24.35" / 32.1 x 312 x 618.4mm
Port Tuning Frequency FB
32Hz
Ported Box Output Response F3
26Hz


MEASUREMENTS

Overall Diameter
12.55" / 319mm
Overall Depth
9.13" / 232mm
Front Mount Baffle Cutout
11.1" / 282mm
Mounting Depth
7.55" / 192mm
Motor Diameter
7.08" / 180mm
Gross Single Unit Weight
35

Free shipping on orders $100+

FAQs

Please read our FAQs page to find out more.

RMS vs. MAX power — which number do I actually care about?

RMS is what your gear handles continuously; MAX is the short burst it can survive without complaint. Match your amplifier's RMS output to your speakers' RMS rating — sizing off the MAX number is how magic smoke gets released.

What does the IP65 rating on DS18 marine gear actually mean?

It's dust-tight and rated against low-pressure water jets from any direction — built for spray, rain, and the occasional wave over the bow, not for full submersion. If something's going somewhere it could sit underwater, that's a different conversation entirely.

How do I match an amplifier to my speakers without guessing?

Add up the RMS rating of everything the amp will power, and pick an amp whose RMS output (at your speakers' impedance — usually 4-ohm) lands close to that total. Undersized is thin sound; wildly oversized is a fast way to blow a voice coil.

Can I mix marine-grade gear into a standard car audio setup, or the reverse?

You can run marine-grade gear in a car — it's just over-built for that environment, no downside besides cost. Running non-weatherproof car audio gear in an open UTV or boat is the direction that causes problems.

What gauge wiring kit do I need?

It scales with your amp's power draw and the length of the run — DS18's OFC kits come in 4-gauge and 8-gauge for a reason. Undersized wiring on a high-draw system is a voltage-drop and heat problem waiting to happen; when in doubt, size up.

Didn’t find your answer?

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