C7-100ct 25 mm tweeter with ceramic corundum coating and aluminum dome

JL Audio
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€ 251,00
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Type
Tweeter
Dome Size
25 mm
MAX Power
150 Watt
RMS Power
100 Watt
Frequency Response
3000 - 30000 Hertz
Sensitivity
89,5 dB
Impedance
4 Ohm
Outer Diameter
54 mm
Installation Depth
19 mm
Tweeter Material
Alluminio

JL Audio C7-100ct Tweeter 25mm (1") with corundum ceramic coating and aluminum dome

The C7 represents the pinnacle of JL Audio's car speaker design, benefiting from the most advanced development tools and a total commitment to precision reproduction. The C7-100ct tweeter is engineered to deliver unprecedented high-frequency performance. Using an aluminum alloy diaphragm coated with corundum ceramic, suspended via a treated silk suspension, s-roll, it delivers spectacularly detailed reproduction of high frequencies with exceptional off-axis response.

Distortion and non-linearities have been minimized through optimization of the dynamic behavior of the motor and suspension. Sold individually, with devices and hardware for flush and surface mounting. A 15μF tweeter protection capacitor is also included. 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.

Key features of the C7-100ct

  • Dome diaphragm: The aluminum alloy diaphragm coated with corundum ceramic features high rigidity, very low mass, and excellent environmental stability. It also helps the tweeter dome maintain its shape and function as a true piston at high frequencies, without penalizing the moving mass.
  • Suspension design: The diaphragm movement is centered, spring-loaded and damped by a treated silk suspension, s-roll. The ferrofluid in the magnetic gap acts as a rear suspension element. The two elements combine to provide optimal damping without excessively limiting excursion.
  • Motor design: The C7-100ct employs a high-density magnetic circuit with neodymium magnet and U-Yoke motor topology. An underhung voice coil is employed, wound with copper-coated aluminum wire on an aluminum voice coil former. The motor magnets have been precisely optimized using advanced FEA tools to reduce even-order distortion and IMD/AMD.
  • Acoustic design: The shape of the tweeter enclosure has been designed to increase sensitivity in a very specific bandwidth, helping to flatten the frequency response. It also allows for better directivity control.
  • Bandwidth:
    • With 48 dB/octave filters: 3,000 Hz - 30,000 Hz
    • With 24 dB/octave filters: 4,000 Hz - 30,000 Hz
    • With 12 dB/octave filters: 5,000 Hz - 30,000 Hz

Manuale utente

n-20230317103834-c7100ct-man.pdf

JL Audio C7-100ct Technical Specifications

  • Continuous power handling (RMS) 100 W
  • Recommended amplifier power (RMS) 50 - 150 W / Ch.
  • Nominal impedance 4 Ω
  • Frequency response 3 kHz - 30 KHz ± 3 dB
  • Voice coil resistance (Re) 3.20 Ω
  • Free air resonance (Fs) 1450 Hz
  • Reference efficiency (no) 0.267%
  • Efficiency 86.5 dB @ 1W / 1m - 92.5 dB @ 1W / 0.5m
  • Sensitivity 89.5 dB @ 2.83V / 1m
  • Device diameter for flush mounting 2.13 in / 54 mm
  • Device diameter for surface mounting 2.16 in / 55 mm
  • Flush mounting hole diameter 1.88 in / 48 mm
  • Flush mounting depth 0.73 in / 19 mm
  • Tweeter front projection with flush mounting 0.33 in / 8 mm
  • Tweeter front projection for surface mounting 1.06 in / 27 mm
€ 251,00 Price incl. VAT