SELECT 4” 2-Way Coaxial Speaker with Grille | 40W RMS 4-Ohm - DS18
SELECT 4” 2-Way Coaxial Speaker with Grille | 40W RMS 4-Ohm - DS18
SELECT 4” 2-Way Coaxial Speaker with Grille | 40W RMS 4-Ohm - DS18
SELECT 4” 2-Way Coaxial Speaker with Grille | 40W RMS 4-Ohm - DS18
SELECT 4” 2-Way Coaxial Speaker with Grille | 40W RMS 4-Ohm - DS18
SELECT 4” 2-Way Coaxial Speaker with Grille | 40W RMS 4-Ohm - DS18
SELECT 4” 2-Way Coaxial Speaker with Grille | 40W RMS 4-Ohm - DS18
SELECT 4” 2-Way Coaxial Speaker with Grille | 40W RMS 4-Ohm - DS18
SELECT 4” 2-Way Coaxial Speaker with Grille | 40W RMS 4-Ohm - DS18
SELECT 4” 2-Way Coaxial Speaker with Grille | 40W RMS 4-Ohm - DS18
SELECT 4” 2-Way Coaxial Speaker with Grille | 40W RMS 4-Ohm - DS18
SELECT 4” 2-Way Coaxial Speaker with Grille | 40W RMS 4-Ohm - DS18
SELECT 4” 2-Way Coaxial Speaker with Grille | 40W RMS 4-Ohm - DS18
SELECT 4” 2-Way Coaxial Speaker with Grille | 40W RMS 4-Ohm - DS18
SELECT 4” 2-Way Coaxial Speaker with Grille | 40W RMS 4-Ohm - DS18
SELECT 4” 2-Way Coaxial Speaker with Grille | 40W RMS 4-Ohm - DS18
SELECT 4” 2-Way Coaxial Speaker with Grille | 40W RMS 4-Ohm - DS18
SELECT 4” 2-Way Coaxial Speaker with Grille | 40W RMS 4-Ohm - DS18
SELECT 4” 2-Way Coaxial Speaker with Grille | 40W RMS 4-Ohm - DS18
SELECT 4” 2-Way Coaxial Speaker with Grille | 40W RMS 4-Ohm - DS18
SELECT 4” 2-Way Coaxial Speaker with Grille | 40W RMS 4-Ohm - DS18
SELECT 4” 2-Way Coaxial Speaker with Grille | 40W RMS 4-Ohm - DS18
SELECT 4” 2-Way Coaxial Speaker with Grille | 40W RMS 4-Ohm - DS18
SELECT 4” 2-Way Coaxial Speaker with Grille | 40W RMS 4-Ohm - DS18

SELECT 4” 2-Way Coaxial Speaker with Grille | 40W RMS 4-Ohm

Sale price $34.95

Availability: In stock SKU: S40
SELECT 4” 2-Way Coaxial Speaker with Grille | 40W RMS 4-Ohm - DS18

SELECT 4” 2-Way Coaxial Speaker with Grille | 40W RMS 4-Ohm

$34.95

Product Overview

4” 2-Way Coaxial Speaker with Grille

DS18’s S40 is a compact 2-way coaxial speaker that brings DS18’s signature clarity in a form factor that fits nearly anywhere.

Performance in a 4-Inch Frame
With 40W RMS (120W MAX), the S40 is ideal for replacing factory speakers or building out a multi-speaker system. The integrated mylar tweeter delivers smooth high frequencies, while the woofer handles mids with power. The voice coil assembly includes ASV and EISV components for thermal stability and durability, even at louder volumes.

Tuned to Stay Tight
The S40 maintains tight response from 80Hz to 20kHz. Its mechanical design—featuring a rubber surround, black matte steel basket, and a barium ferrite magnet—helps control distortion while preserving output in small enclosures or OEM locations.

Built to Fit, Ready to Play
With a mounting depth of just 1.67", the S40 installs easily into doors, dashboards, and other tight spaces. It comes with grilles included and is ready to drop into your system without needing custom fabrication.

Make the upgrade and experience the DS18 Difference for yourself!

Key Features

  • 4" 2-way coaxial speaker with integrated tweeter
  • 40W RMS / 120W MAX power handling
  • Frequency range: 80Hz – 20kHz
  • ASV/EISV voice coil materials
  • Grill included

Key Features

  • 4" 2-way coaxial speaker with integrated tweeter
  • 40W RMS / 120W MAX power handling
  • Frequency range: 80Hz – 20kHz
  • ASV/EISV voice coil materials
  • Grill included

Specifications

SKU S40
Nominal Diameter 4" / 101.6mm / 1" / 25.5mm
Nominal Impedance 4 Ohms
RMS Power Handling 40W
MAX Power Handling 120W
Sensitivity (1w/1m) 85dB
Frequency Response 80Hz-20KHz
Recommended HI Pass Crossover 120Hz
Number of ways 2
Pair or Single Pair
Grill Included Yes
Voice Coil Diameter 1" / 25.5mm / 0.5" / 13.25mm
Voice Coil Former Material ASV / KSV
Winding Material EISV / EISVM
Cone Material PPI
Surround Material Rubber
Basket Material Steel
Basket Color/Finish Black Matte
Magnet Material Barium Ferrite / Neodymium
Magnet Weight 5.3Oz / 150g / 1.8g
Equivalent Volume 1.82L / 0.064ft3
Excursion (one way) 2.2mm
Free Air Resonance 120Hz
Mechanical Factor 5.677
Electrical Factor 1.911
Total Factor 1.429
Mechanical Mass 6.5g
Mechanical Compliance 0.444mm/N
BL Factor 2.35
Voice Coil Inductance 0.030mH
Cone Area 55cm2
DC Resistance 3.7 Ohms
Mechanical Mass w/o air 6g
Diaphragm Material Mylar
Overall Diameter 4" / 104mm
Overall Depth 2.2" / 56.6mm
Overall Diameter (With Grill) 5.28" / 134mm
Overall Depth (With Grill) 2.73" / 69.3mm
Front Mount Baffle Cutout 3.6" / 92mm
Mounting Depth 1.67" / 42.5mm
Motor Diameter 2.76" / 70mm
Tweeter Protrusion 0.37" / 9.5mm