Part Number 010-03127-00 3.5-inch (90 mm) Component Midrange, with Grille C7 is the pinnacle of JL Audio automotive loudspeaker design, benefiting from our most advanced development tools and a complete commitment to precision manufacturing. The C7-350cm component midrange is designed to operate in a 3-way system, with a woofer and tweeter. Conceived and purpose-built from the ground up, it offers exceptional transient response and outstanding linearity, resulting in unsurpassed clarity and natural mid-range reproduction. Distortion and non-linearities have been minimized through critical optimization of dynamic motor and suspension behaviors. Passive crossover networks are not included with C7 drivers, as they are designed for active systems. Instead, we recommend a high-quality tuning DSP, such as the JL Audio TwK® 88 or D8, or a VXi amplifier with built-in DSP, with a dedicated amplifier channel for each C7 loudspeaker in the system. Precise setup of equalization, delay and crossover filters will ensure optimal in-vehicle performance. C7-350cm Design Notes:Cone and Dust Cap:Vacuum-formed, mineral-filled polypropylene material offers excellent damping and low mass. The cone body features a gentle curvilinear profile to optimize response. A concave dust cap further improves high frequency behavior. Suspension design:The moving assembly is suspended and damped via a linear profile spider formed from a Nomex®/polycotton blend, and a positive-roll, rubber surround. The two combine to provide optimum damping without prematurely restricting excursion. Motor Design:The C7-350cm employs a high-density magnetic circuit with a high-grade, neodymium magnet, and a specially machined, U-Yoke motor topology. Motor magnetics have been precisely optimized utilizing advanced FEA tools to reduce distortion and provide linear motor force throughout the driver's performance range. A 36 mm (1.42 inch) diameter, overhung voice coil is employed, wound with copper-clad aluminum wire onto a fiberglass voice coil former. The oversized voice coil offers extended power handling capability, minimizing thermal compression and distortion at higher listening levels. Chassis Design:A purpose-engineered cast alloy basket is employed, featuring thin spokes to maximize rear open area. Design Bandwidth:With 48 dB/octave filters: 300 Hz - 10 kHzWith 24 dB/octave filters: 400 Hz - 10 kHzWith 12 dB/octave filters: 500 Hz - 10 kHz Built in USA with Global ComponentsSold individually, with a cast-alloy grille tray, one fine mesh steel grille insert and one spiral steel grille insert. The performance of every C7 driver is tested and verified, then assigned a unique serial number. What's in the Box: One 3.5" midrange speaker One 0.185" male crimpable connectors One 0.110" male crimpable connectors Four 1-1/4" mounting screws One grille frame, fine mesh grille and spiral grille General Sizes 1"/3.5"/6.5" Continuous power handling (RMS) 1"/3.5": 100 W6.5": 125 W Sensitivity (SPL @ 1 W/1 m) 1"/3": 86.5 dB6.5": 87 dB Sensitivity (SPL @ 2.83 V/1 m) 1"/3": 89.5 dB @ 2.83 V/1 m6.5": 90 dB @ 2.83 V/1 m Frequency response (+/- 3 dB) 1": 3 kHz-30 KHz3": 300 Hz-10 KHz6.5": 50 Hz-5 KHz Nominal impedance 4 Ω Recommended amplifier power (RMS) 1"/3.5": 50-150 W/Channel6.5": 50-175 W/Channel Voice coil diameter 3.5": 1.42" (36 mm)6.5": 1.27" (32 mm) Cone material Vacuum-formed, mineral-filled polypropylene Tweeter type Corundum ceramic-coated, aluminum dome Tweeter size 1" (25 mm) Grille(s) included Warranty 1 year Connections Speaker connections Spade connectors Mounting Dimensions Frame outer diameter 3.5": 3.45" (88 mm)6.5": 6.5" (165 mm) Mounting depth clearance 3.5": 1.46" (37 mm)6.5": 2.77" (70 mm) Frontal grille protrusion 3.5": 0.58" (15 mm)6.5": 0.98" (25 mm) Mounting hole 3.5": 2.87" (73 mm)6.5": 5.56" (141 mm) Grille tray outer diameter 3.5": 3.95" (100 mm)6.5": 7.20" (183 mm) Bolt hole circle 3.5": 3.15" (80 mm)6.5": 6.12" (155 mm) Motor outer diameter 3.5": 2.36" (60 mm)6.5": 3.94" (100 mm) Parameters Free Air Resonance (FS) 1": 1450 Hz3": 156.9 Hz6.5": 54.5 Hz Electrical “Q” (Qes) 3.5": 0.596.5": 0.669 Mechanical “Q” (Qms) 3.5": 6.4546.5": 6.265 Total “Q” (Qts) 3.5": 0.5416.5": 0.605 Equivalent Compliance (Vas) 3.5": 0.015 cu ft (0.430 L)6.5": 0.461 cu ft (13.05 L) One-way linear excursion (Xmax; specs are derived via one-way voice coil overhang method with no correction factors applied) 3.5": 1 mm6.5": 5 mm Reference Efficiency (NO) 1": 0.267%3": 0.27%6.5": 0.304% Moving mass (Mms) 3.5": 49 g6.5": 17.679 g Mechanical compliance (Cms) 3.5": 0.000257 m/N6.5": 0.000482 m/N Magnetic strength (BL) 3.5": 4.666.5": 5.31 Effective piston area (SD) 3.5": 5.31 in² (0.003426 m²)6.5": 21.4 in² (0.013807 m²) DC resistance (RE) 1": 3.20 Ω3": 3.245 Ω6.5": 3.114 Ω Why buy JL Audio from MCOR Automotive Authorized JL Audio / Garmin dealer with over 22 years in business. We install and use this gear every day, so our recommendations come from real-world results. Pre-sale help if you’re unsure what fits your vehicle, boat or system goals. Support after the sale if you run into questions on wiring, setup or matching gear. Fitment & Installation Help Need help confirming fitment or installation parts? Use our Fit Guide or contact us through the chat button before ordering. Authorized Retailer & Warranty MCOR Automotive is an authorized JL Audio / Garmin retailer. Products purchased from MCOR include applicable manufacturer warranty coverage when installed and used according to manufacturer guidelines.
