DS18 EXL-SQ4.0 EXL 4" 2-Way Coaxial Speaker with Fiber Glass Cone 340 Watts 3-Ohm

DS18 EXL-SQ4.0 is a 4-inch, two-way coaxial car speaker built for compact spaces that demand clear, dynamic sound. It pairs a glass fiber woofer with a PEI dome tweeter, delivering accurate response from 115 Hz to 22 kHz and 3-ohm impedance for easy integration with modern amps.

• Nominal Diameter: 4" (101.6mm) – a compact woofer size that fits many 4" mounting openings in doors or dash panels while still delivering audible bass and detailed highs.
• Nominal Impedance: 3 ohm – lower impedance offers higher current delivery when used with compatible amplifiers, helping the system achieve more output from the same amp.
• RMS Power Handling: 60W – continuous power the driver can reliably handle; keep amplification within this range to preserve clarity and longevity.
• MAX Power Handling: 260W – peak capability for brief transients; provides headroom for dynamic music without immediate clipping.
• Sensitivity (1W/1m): 85 dB – efficiency metric used to estimate the expected SPL with a given amp and listening distance.
• Frequency Response: 115Hz – 22kHz – covers most vocal and mid-to-high content; deep bass may require a subwoofer in a full-range system.
• Recommended HI Pass Crossover: 140Hz – suggested high-pass filter to protect the woofer from too-low frequencies and optimize mid-bass performance.
• Number of Ways: 2-way – separate woofer and tweeter provide clearer highs and more accurate vocal reproduction than a single-driver design.
• Grill Included: Yes – protective grille included for installation durability and finish.
• Woofer Material: Glass Fiber – stiff, lightweight cone reduces distortion and improves transient response for cleaner bass and mids.
• Surround Material: Rubber – durable edge material that tolerates movement and temperature changes in automotive environments.
• Tweeter Material: PEI Dome; Magnet Material Neodymium – rigid high-frequency diaphragm paired with strong magnets for detailed highs and efficient motor structure.
• Voice Coil Diameter: 1" (25.5mm) – robust coil support for reliable performance under musical transients.
• Voice Coil Former Material: BASV
• Winding Material: CCAW
• Basket Material: Aluminum
• Magnet Material: Neodymium
• Overall Diameter: 4.12" (104.8mm)
• Overall Depth: 2.14" (54.5mm)
• Front Mount Baffle Cutout: 3.77" (96mm)
• Mounting Depth: 1.96" (50mm)
• Weight: 4 lb per unit

In a typical front-stage install, the EXL-SQ4.0’s 2-way design delivers crisp highs and controlled midbass from a compact enclosure while the 3-ohm impedance and neodymium magnets support strong, responsive output when paired with a suitable amplifier. The glass fiber cone minimizes distortion during musical transients, and the 140 Hz high-pass recommendation helps protect the woofer in space-constrained builds. The included grill and rigid aluminum basket simplify mounting and finish, making this 4" coaxial a precise choice for enthusiasts building clean, mid- to high-end door or dash systems.