JL Audio C7-350CM
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Item# 51370 / Condition:  Brand New  On Sale  Review this product

JL Audio C7-350CM

200 Watts Peak Power 3-1/2" Component Midrange Car Speaker - Sold as Single

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Save $50.00 | Reg. Price $439.99 In Stock
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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. The result is an astounding display of sound quality.

Crafted by one of the leading makers of car audio technology, JL Audio truly provides the sound of the generation.

Here are some Design Notes from the manufacturer:

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 kHz
With 24 dB/octave filters: 400 Hz - 10 kHz
With 12 dB/octave filters: 500 Hz - 10 kHz


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


  • 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 / 1m
    • 92.5 dB @ 1W / 0.5m
  • Sensitivity: 89.5 dB @ 2.83V / 1m
  • Electrical “Q” (Qes): 0.59
  • Voice Coil Resistance (Re): 3.245 Ω
  • UPC: 699440997584
  • Weight: 2.01
  • Authorized Internet Dealer
*Warranty: 1 Year Manufacturer warranty.
This item is accompanied by a manufacturer's warranty. If it is found to be defective, it may be returned to OnlineCarstereo.com for replacement within 1 year from the original date of purchase with proper return authorization.