DS18 S40 4 Inch Car Audio Coaxial Speaker Pair - 120W Max (40W RMS) 4 Ohm 2-Way Coax with Grill, Black Matte Steel Basket, and Barium Ferrite Magnet - Upgrade Factory Speakers

Description

• Upgrade Your Sound: The DS18 S40 4" 2-way coaxial speakers deliver 40W RMS power handling (120W MAX), providing a significant audio upgrade over standard factory speakers. Featuring a durable black matte steel basket and a robust barium ferrite magnet, these speakers are engineered for superior performance and longevity, ensuring clear, powerful sound
• Premium Components for Clarity: Experience crystal-clear highs and powerful mids thanks to the integrated mylar tweeter and a high-quality PPI woofer cone. The voice coil assembly, with its ASV and EISV components, offers exceptional thermal stability, allowing you to push the volume without compromising durability
• Engineered for Tight Spaces: With a slim 1.67" mounting depth, these speakers are designed for easy installation in a variety of challenging locations, including car doors, dashboards, and other OEM spots where space is limited. The included grilles ensure a clean, finished look, making them ready to install right out of the box without the need for custom fabrication
• Wide Frequency Response: The DS18 S40 speakers provide a tight and responsive sound profile, handling a broad frequency range from 80Hz to 20kHz. The carefully designed rubber surround and 5.3 oz magnet minimize distortion and ensure accurate sound reproduction, capturing every detail of your music
• Technical Specifications: This product is sold as a pair with a 4-ohm nominal impedance, 85dB sensitivity, and a 120Hz recommended high pass crossover. The overall diameter is 4.09" (104mm) with a 3.6" (92mm) front mount baffle cutout. These detailed specifications guarantee compatibility and superior performance for your car audio system

General Specifications

SKU: S40
Nominal Diameter: 4" / 101.6mm
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
Sold As: Pair
Grill Included: Yes

Woofer Specifications

Voice Coil Diameter: 1" / 25.5mm
Voice Coil Former Material: ASV
Winding Material: EISV
Cone Material: PPI
Surround Material: Rubber
Basket Material: Steel (Black Matte finish)
Magnet Material: Barium Ferrite
Magnet Weight: 5.3 Oz / 150g

Thiele & Small Parameters

Equivalent Volume (Vas): 1.82L / 0.064ft
Excursion (Xmax, one way): 2.2mm
Free Air Resonance (Fs): 120Hz
Mechanical Factor (Qms): 5.677
Electrical Factor (Qes): 1.911
Total Factor (Qts): 1.429
Mechanical Mass (Mms): 6.5g
Mechanical Compliance (Cms): 0.444mm/N
BL Factor: 2.35
Voice Coil Inductance (Le): 0.030mH
Cone Area (Sd): 55cm
DC Resistance (Re): 3.7 Ohms
Mechanical Mass (w/o air): 6g

Tweeter Specifications

Nominal Diameter: 1" / 25.5mm
Voice Coil Diameter: 0.5" / 13.25mm
Voice Coil Former Material: KSV
Winding Material: EISVM
Diaphragm Material: Mylar
Magnet Material: Neodymium
Magnet Weight: 1.8g

Speaker Measurements

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

Shipping and Returns

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