JL Audio 99757 Single 6.5" Component Woofer

User Manual - Page 2

For 99757.

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DESIGN & TECHNOLOGIES
Cone and Dust Cap:
1
Vacuum-formed, mineral-filled polypropylene
material offers excellent damping and low mass.
The cone body features a gentle curvilinear
profile to optimize response.
2
A specially shaped dust cap attaches to the cone
body and the voice coil former to improve high
frequency behavior.
Suspension Design:
3
The moving assembly is suspended and
damped via a large-diameter, 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 the C7-650cw’s
outstanding excursion capability.
Motor Design:
4
The C7-650cw employs a high-density magnetic
circuit with a high-grade Y35 Strontium-ferrite
magnet, and a specially machined, T-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.
5
A 32 mm (1.27 inch) diameter, overhung voice
coil is employed, wound with copper 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:
6
A purpose-engineered cast alloy basket is
employed, featuring thin spokes to maximize
rear open area, and our Patented Elevated
Frame Cooling technology.
Built in USA with Global Components
C7-650cw: 6.5-inch (165 mm) Component Woofer
INTRODUCTION
Thank you for choosing JL Audio C7 loudspeakers
for your automotive sound system. C7 is the
pinnacle of JL Audio loudspeaker design, benefitting
from patented technologies and our most advanced
development tools.
The C7-650cw is a component woofer capable
of operating in a 3-way system, with a midrange
and tweeter, or with only a tweeter in a 2-way
configuration. It has exceptional linear excursion
capability and outstanding linearity, resulting
in solid mid-bass and pure, precise mid-range
performance. Distortion and non-linearities have
been minimized through critical optimization of
dynamic motor and suspension behaviors.
We do not recommend the use of passive
crossover networks with C7 loudspeakers. Instead,
we recommend a high-quality tuning DSP 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.
Should you have any questions regarding the
instructions in this manual, please contact your
authorized JL Audio dealer for assistance, or contact
the JL Audio Technical Support Department.
INCLUDED COMPONENT & PARTS
• One (1) C7-650cw 6.50-inch (165 mm) woofer
• One (1) die-cast aluminum grille tray
• One (1) fine mesh steel grille
• One (1) spiral steel grille
• One (1) 6.35 mm female crimpable connector
• One (1) 4.7 mm female crimpable connector
Eight (8) #8 x 1.25-inch (32 mm) sheet metal screws
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OOhhmmss
ddBB
20 kHz10 kHz5 kHz1 kHz100 Hz20 Hz
0 deg.
30 deg.
45 deg.
Impedance
2
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