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JL Audio C7-350cm 3.5-inch (90 mm) Component Midrange, Single Introduction 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, and 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. Register your C7 loudspeaker online to receive a copy of its specific Acoustical Test Report. General Specifications Continuous Power Handling (RMS) 100 W Peak Music Power 200 W Recommended Amplifier Power (RMS) 50 - 150 W / Ch. Nominal Impedance 4 Ω Frequency Response 300 Hz - 10 KHz ± 3 dB Parameters Moving Mass (Mms) 4.009 g Equivalent Compliance (Vas) 0.015 cu. ft. (0.430 liters) Mechanical Compliance (Cms) 0.000257 m/N Magnetic Strength (BL) 4.66 N/A One Way Linear Excursion (Xmax) 1 mm Effective Piston Area (Sd) 5.31 sq. in. (0.003426 sq. m) Total Speaker “Q” (Qts) 0.541 Mechanical “Q” (Qms) 6.454 Reference Efficiency (no) 0.27% Free Air Resonance (Fs) 156.9 Hz Efficiency 86.5 dB @ 1W / 1m92.5 dB @ 1W / 0.5m Sensitivity 89.5 dB @ 2.83V / 1m Electrical “Q” (Qes) 0.59 Voice Coil Resistance (Re) 3.245 Ω Physical Specifications Frame Outer Diameter (A) 3.45 in / 88 mm Bolt Hole Circle Diameter (B) 3.15 in / 80 mm Mounting Hole Diameter (C) 2.87 in / 73 mm Grille Tray Outer Diameter (D) 3.95 in / 100 mm Frontal Grille Protrusion (E) 0.58 in / 15 mm Mounting Depth (F) 1.46 in / 37 mm Motor Outer Diameter (G) 2.36 in / 60 mm
Posted by Danielle W. on 14th Jul 2026
Installed the 3.5" set in my 2012 Chevrolet Tahoe's front center location — dropped right in. 100W peak runs clean off the stock deck, no separate amp needed yet. Clear top end, no rattle at higher volume. Would buy the matching pair for the other side.
Posted by Alicia T. on 25th Jun 2026
Installed the 3.5" set in my 2012 Chevrolet Tahoe's front center location — dropped right in. 100W peak runs clean off the stock deck, no separate amp needed yet. Clear top end, no rattle at higher volume. Would buy the matching pair for the other side.
Posted by Mark C. on 24th May 2026
Good upgrade for the 2012 Chevrolet Tahoe's front center location. 100W peak matched the factory wiring fine. only ding is the mounting depth ran a little tight against the door hardware, worth checking clearance first. Sound is a clear step up from the factory speaker.
Posted by Eric C. on 9th May 2026
Confirmed size and impedance against the 2012 Chevrolet Tahoe's front center spec before ordering, and it matched. Mounting took more patience than expected getting the screws started evenly. Output is fine for daily driving, just not a dramatic jump over stock.
Posted by Anthony W. on 26th Feb 2026
Installed the 3.5" set in my 2012 Chevrolet Tahoe's front center location — dropped right in. 100W peak runs clean off the stock deck, no separate amp needed yet. Clear top end, no rattle at higher volume. Would buy the matching pair for the other side.
Posted by Danielle E. on 13th Feb 2026
Good upgrade for the 2012 Chevrolet Tahoe's front center location. 100W peak matched the factory wiring fine. only ding is the mounting depth ran a little tight against the door hardware, worth checking clearance first. Sound is a clear step up from the factory speaker.
Posted by James T. on 16th Nov 2025
Good upgrade for the 2012 Chevrolet Tahoe's front center location. 100W peak matched the factory wiring fine. only ding is the mounting depth ran a little tight against the door hardware, worth checking clearance first. Sound is a clear step up from the factory speaker.
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The specs above are the fastest way to confirm a part is right before checkout — a size or power rating just outside your factory setup usually means an adapter or a different SKU, not a return later. If you are not sure which spec matters for your vehicle, the fit tool at the top of the page narrows the catalog to parts already confirmed for your year, make, and model.
