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1-inch (25 mm) Component Tweeter, Single

JL Audio C7100CT

 

1-inch (25 mm) Corundum Ceramic-Coated, Aluminum Dome Component Tweeter

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 C7-100ct component tweeter is designed to deliver unparalleled high-frequency performance. Utilizing a corundum ceramic-coated aluminum alloy diaphragm suspended via a treated silk, s-roll surround, it provides spectacularly detailed reproduction of treble frequencies with outstanding off-axis response. 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.

C7-100ct Design Notes:
Dome Diaphragm: Corundum ceramic coated aluminum alloy diaphragm exhibits high stiffness, very low mass and excellent environmental stability. It also helps the tweeter dome to hold its shape and operate as a true piston at higher frequencies, without a penalty in moving mass.

Suspension Design: The diaphragm's motion is centered, sprung and damped by a treated silk, s-roll surround. Ferrofluid in the magnetic gap acts as a rear suspension element in this design. The two combine to provide optimum damping without unduly restricting excursion.

Motor Design: The C7-100ct employs a high-density magnetic circuit with a neodymium magnet and U-Yoke motor topology. An under-hung voice coil is employed, wound with copper-clad aluminum wire onto an aluminum voice coil former. Motor magnetics have been precisely optimized utilizing advanced FEA tools to lower even order distortion and IMD/AMD.

Acoustical Design: The shape of the tweeter housing is designed to boost sensitivity in a very specific bandwidth, helping to flatten the frequency response. It also provides improved control of directivity.

Design 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

Sold individually, with flush and surface mounting fixtures and hardware. One 15μF tweeter protection capacitor is also included.

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.

Technology
Dynamic Motor Analysis - DMA Optimized Motor

JL Audio's proprietary Dynamic Motor Analysis system is a powerful suite of FEA-based modeling systems, first developed by JL Audio in 1997 and refined over the years to scientifically address the issue of speaker motor linearity. This leads to vastly reduced distortion and faithfully reproduced transients... or put simply: tight, clean, articulate bass.

Elevated Frame Cooling (U.S. Patent #6,219,431 & #6,229,902)

JL Audio's patented Elevated Frame Cooling design delivers cool air through slots directly above the top-plate to the voice coil of the speaker. This not only enhances power handling, but also sound quality by minimizing dynamic parameter shifts and power compression.

General Specifications
Continuous Power Handling (RMS) 100 W
Peak Music Power 200 W
Recommended Amplifier Power (RMS) 50 - 150 W / Ch.
Nominal Impedance 4
Frequency Response 3 kHz - 30 KHz 3 dB
Parameters
Voice Coil Resistance (Re) 3.20
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
Tweeter Physical Specifications
Flush Mount Fixture Diameter (A1) 2.13 in / 54 mm
Surface Mount Fixture Diameter (A2) 2.16 in / 55 mm
Flush Mount Mounting Hole Diameter 1.88 in / 48 mm
Flush Mount Mounting Depth (C) 0.73 in / 19 mm
Flush Mount Tweeter Frontal Protrusion (D1) 0.33 in / 8 mm
Surface Mount Tweeter Frontal Protrusion (D2) 1.06 in / 27 mm

C7-100ct Manual

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Delivery is available for appliances, TV's, and Mattresses in our local area. Professional installation of car audio available at Lewiston store. Please contact store for more information.

For all out of State orders, (with exception to Washington State residents within 80 miles of our store), shipping is not available. Please call store for details.

Extended warranties are usually very inexpensive and can save you thousands in the future. It's simple and inexpensive to purchase extended warranties and one of the smartest ways to protect your investment.

Electronics can be large, heavy and expensive. You probably don't have the special tools or expertise needed to fix them in a crisis. If you can spare a few thousand dollars without batting an eyelash for new electronics should they break tomorrow, don't buy a warranty. But if you're like most of us, protect yourself by purchasing inexpensive extended warranties when you buy a new product and save yourself big money in the long run.