C7-350cm High End 90 mm midrange

JL Audio
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€ 431,00
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Type
Midrange
Speaker Size
Other sizes
MAX Power
150 Watt
RMS Power
100 Watt
Frequency Response
300 - 10000 Hertz
Sensitivity
89,5 dB
Impedance
4 Ohm
Installation Depth
37 mm
Midrange Cone Material
Polipropilene

JL Audio C7-350cm 3.5 inch (90 mm) midrange with grille.

The C7-350cm midrange is designed to operate in a 3-way system, with woofer and tweeter. Conceived and built from scratch specifically, it offers exceptional transient response and extraordinary linearity, which translates into unsurpassed clarity and natural midrange reproduction. Distortion and non-linearities have been minimized through optimization of the motor and suspension dynamic behaviors.

C7-350cm main features
Cone and dust cap: The polypropylene material, vacuum formed and filled with minerals, offers excellent damping and reduced mass. The cone body features a gently curved profile to optimize response. The concave dust cap further improves high-frequency behavior.

Suspension design: The moving assembly is suspended and damped by a linear-profile spider formed from a Nomex® and cotton blend and a positive-rolling rubber surround. The two elements combine to provide optimal damping without prematurely limiting excursion.

Motor design: The C7-350cm employs a high-density magnetic circuit with a high-quality neodymium magnet and a specially machined U-topology motor structure. The motor magnets have been precisely optimized using advanced FEA tools to reduce distortion and provide linear motor force throughout the driver's performance range.

An oversized 36 mm diameter voice coil is employed, wound with copper-coated aluminum wire on a fiberglass former. The oversized voice coil offers greater power handling capacity, minimizing thermal compression and distortion at higher listening levels.

Frame design: A specially engineered cast-alloy basket is used, with thin spokes to maximize the rear open area.

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

Built in the USA. Sold individually, with an alloy grille tray, a fine-mesh steel grille insert and a spiral steel grille insert.

The performance of each C7 speaker is tested and verified, then assigned a unique serial number. Register your C7 speaker online to receive a copy of the specific acoustic test report.

Manuale utente

n-20230317110344-c7350cm-man.pdf

JL Audio C7-350cm technical specifications

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 at 2.83V / 1m
Electrical Q (Qes) 0.590
Mechanical "Q" (Qms) 6.454
Speaker total "Q" (Qts) 0.541
Equivalent compliance (Vas)
0.015 cubic feet (0.430 liters)
Moving mass (Mms) 4.009 g
Mechanical compliance (Cms) 0.000257 m/N
Magnetic force (BL) 4.66 N/A
Effective piston area (Sd)
5.31 square inches (0.003426 square meters)
Linear unidirectional excursion (Xmax) 1 mm
Frame outside diameter 3.45 in / 88 mm
Bolt hole circle diameter 3.15 in / 80 mm
Mounting hole diameter 2.87 in / 73 mm
Grille outside diameter 3.95 in / 100 mm
Front grille protrusion 0.58 in / 15 mm
Mounting depth 1.46 in / 37 mm
Motor outside diameter 2.36 in / 60 mm

€ 431,00 Price incl. VAT