C7-350cm

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.

Sold 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.

• Speaker Type: Component Midrange
• Nominal Diameter: 3.5 in. (90 mm)
• Continuous Power Handling (RMS): 100 W
• Recommended Amplifier Power (RMS): 50 - 150 W / Ch.
• Nominal Impedance: 4 Ω
• Frequency Response: 300 Hz - 10 KHz ± 3 dB
• Voice Coil Resistance (Re): 3.245 Ω
• Free Air Resonance (Fs): 156.9 Hz
• Reference Efficiency (no): 0.270%
• Efficiency: 86.5 dB @ 1W / 1m; 92.5 dB @ 1W / 0.5m
• Sensitivity: 89.5 dB @ 2.83V / 1m
• Electrical “Q” (Qes): 0.590
• Mechanical “Q” (Qms): 6.454
• Total Speaker “Q” (Qts): 0.541
• Equivalent Compliance (Vas): 0.015 cu. ft. (0.430 liters)
• Moving Mass (Mms): 4.009 g
• Mechanical Compliance (Cms): 0.000257 m/N
• Magnetic Strength (BL): 4.66 N/A
• Effective Piston Area (Sd): 5.31 sq. in. (0.003426 sq. m)
• One Way Linear Excursion (Xmax): 1 mm
• Design Bandwidth: With 48 dB / octave filters: 300 Hz - 10 kHz; With 24 dB / octave filters: 400 Hz - 10 kHz; With 12 dB / octave filters: 500 Hz - 10 kHz