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

General SpecificationsSKU: S40Nominal Diameter: 4" / 101.6mmNominal Impedance: 4 OhmsRMS Power Handling: 40WMAX Power Handling: 120WSensitivity (1w/1m): 85dBFrequency Response: 80Hz – 20kHzRecommended HI Pass Crossover: 120HzNumber of Ways: 2Sold As: PairGrill Included: YesWoofer SpecificationsVoice Coil Diameter: 1" / 25.5mmVoice Coil Former Material: ASVWinding Material: EISVCone Material: PPISurround Material: RubberBasket Material: Steel (Black Matte finish)Magnet Material: Barium FerriteMagnet Weight: 5.3 Oz / 150gThiele & Small ParametersEquivalent Volume (Vas): 1.82L / 0.064ft³Excursion (Xmax, one way): 2.2mmFree Air Resonance (Fs): 120HzMechanical Factor (Qms): 5.677Electrical Factor (Qes): 1.911Total Factor (Qts): 1.429Mechanical Mass (Mms): 6.5gMechanical Compliance (Cms): 0.444mm/NBL Factor: 2.35Voice Coil Inductance (Le): 0.030mHCone Area (Sd): 55cm²DC Resistance (Re): 3.7 OhmsMechanical Mass (w/o air): 6gTweeter SpecificationsNominal Diameter: 1" / 25.5mmVoice Coil Diameter: 0.5" / 13.25mmVoice Coil Former Material: KSVWinding Material: EISVMDiaphragm Material: MylarMagnet Material: NeodymiumMagnet Weight: 1.8gSpeaker MeasurementsOverall Diameter: 4" / 104mmOverall Depth: 2.2" / 56.6mmOverall Diameter (with Grill): 5.28" / 134mmOverall Depth (with Grill): 2.73" / 69.3mmFront Mount Baffle Cutout: 3.6" / 92mmMounting Depth: 1.67" / 42.5mmMotor Diameter: 2.76" / 70mmTweeter Protrusion: 0.37" / 9.5mm

• 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