- 6" x 9" 2-Way Component Speakers.
- Peak: 450 watts per pair / 225 watts each | RMS: 120 watts per pair / 60 watts each.
- Impedance: 4 Ohm | Sensitivity: 94 dB | Frequency Response: 39 Hz - 22,000 Hz +/- 3dB.
- 1" Silk Dome Tweeter.
- ing Depth: 2.75" (70 mm).
2-Way Component System: 6 x 9-inch (150 x 230 mm) Woofer,
1.0-inch (25 mm) Aluminum Dome Tweeter C1 speakers deliver real
substance and great audio performance in a format designed for
easy fit behind factory grilles. To facilitate fit,
spacer/adaptor rings are included allowing the C1-690 woofers to
be installed in bottom- applications. Surface and flush
s are included with C1 tweeters for maximum installation
versatility. C1 woofer drivers benefit from proprietary FEA
modeling and JL Audio's expertise in low-frequency driver design.
This knowledge is used to create speakers that can play loudly,
while maintaining a smooth, dynamic, low distortion sound. At the
core of the C1-690 is a proprietary, stamped, steel 6 x 9-inch
(150 x 230 mm) oval frame and a DMA-optimized motor system. A
mineral-filled, injection-molded polypropylene cone is suspended
with a rubber surround on the front, and a carefully engineered
flat Conex® spider at the top of the voice coil, to precisely
control motion and prevent impact between the voice coil and the
back plate. Tinsel leads are carefully routed and attached to the
spider to prevent igue and buzzing. These are the same kinds
of features and materials normally found on much more expensive
loudspeakers. Equipped with a true, edge-driven, 1-inch aluminum
dome tweeter, the C1-690 stands further apart from others in its
category with superior high-frequency clarity and definition. The
tweeterâs design has inherently excellent off-axis response and
high-frequency extension. It also benefits from the damping of a
silk surround suspension and Ferrofluid in the voice coil gap,
along with the superior strength of a neodymium magnet circuit.
An in-line, outboard 2nd order high-pass filter, with Advanced
Tweeter Protection Circuitry, is included to further enhance
smoothness and improve power handling. When it comes to value, C1
is the real deal! Sold as a pair. Grilles not available.
Continuous Power Handling (RMS) 60 W Recommended Amplifier Power
(RMS) 10 - 100 W / Ch. System Efficiency 91.5 dB @ 1 W / 1 m
System Nominal Impedance 4 Ω System Frequency Response 39 Hz -
22 KHz ± 3 dB Frame Outer Diameter* (A) 6.38 x 9.33 in / 162 x
237 mm Grille Tray Outer Diameter (B) N/A Motor Outer Diameter
(C) 3.54 in / 90 mm Frontal Coaxial Tweeter Protrusion (D) N/A
Frontal Grille Protrusion (E) N/A ing Hole Diameter (F) N/A
ing Depth (G) 2.75 in / 70 mm *Does not take into account
ing tabs **Frontal grille protrusion measured from ing
surface Flush Fixture Diameter (A1) 1.97 in / 50 mm Surface
Fixture Diameter (A2) 2.01 in / 51 mm Flush ing
Hole Diameter (B) 1.75 in / 45 mm Flush ing Depth (C)
0.40 in / 10 mm Flush Tweeter Frontal Protrusion (D1) 0.32
in / 8 mm Surface Tweeter Frontal Protrusion (D2) 0.87 in /
22 mm Depth (D) 1.34 in / 34 mm Height (H) 0.90 in / 23 mm Width
(W) 1.96 in / 50 mm Dynamic Motor Analysis - DMA Optimized Motor
Summary: 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. Detailed
Information: Since 1997, JL Audio has been at the forefront of
Finite Element Analysis-based modeling of loudspeaker motors and
suspensions. This research is ed at decoding what we refer to
as the "Loudspeaker Genome"... a project ed at understanding
the true behavior of loudspeakers under power and in motion. A
major component of this integrated system is DMA (Dynamic Motor
Analysis). Starting with the 15W3 and the W7 Subwoofers in the
late 1990's and early 2000's, DMA has played an important role in
the design of all JL Audio woofers sold today, including our
component woofers. DMA is a Finite Element Analysis (FEA)-based
system, meaning that it takes a large, complex problem, breaks it
down into small solution elements for analysis and then assembles
the data to form an accurate, "big-picture" solution. DMA's
breakthrough is that it actually considers the effects of power
through the coil as well as coil/cone position within the
framework of a time-domain analysis. This gives us a highly
accurate model of a speaker's actual behavior under real power,
something that the traditional Thiele-Small models or other low
power measurements cannot do. Because DMA does not rely on a
steady-state model, it is able to consider shifts in the circuit
elements being analyzed. These modeling routines are intense,
requiring hours to run for a whole speaker. DMA is able to
analyze the real effects of fluctuating power and excursion upon
the magnetic circuit of the motor, specifically the dynamic
variations of the "fixed" magnetic field. This delivers intensely
valuable information compared to traditional modeling, which
assumes that the "fixed" field produced in the air gap by the
magnet and the motor plates is unchanging. DMA not only shows
that this "fixed" field changes in reaction to the magnetic field
created by current flowing through the voice coil, but it helps
our engineers arrive at motor solutions that minimize this
instability. Analyzing this behavior is critical to understanding
the distortion mechanisms of a speaker motor and sheds light on
the aspects of motor design that determine truly linear behavior:
Linear motor force over the speaker's operational excursion range
Consistent motor force with both positive and negative current
through the coil Consistent motor force at varying applied power
levels  Our ability to fully analyze these aspects of motor
behavior allows our transducer engineers to make critical
adjustments to motor designs that result in extremely linear,
highly stable dynamic loudspeaker motor systems. The payoff is
reduced distortion, improved transient performance and stellar
sound quality. Aluminum Dome Tweeter Summary:Lightweight Aluminum
Dome tweeters deliver sparkling high-frequency detail that
extends well beyond the frequency response of typical human
hearing. Detailed Information:Compared to similar textile
designs, aluminum tweeter diaphragms offer superior stiffness and
high-frequency extension, with only a minor penalty in
efficiency. JL Audioâs aluminum dome tweeters employ a rubber
surround and ferrous fluid in the motor gap to damp the aluminum
diaphragm. This additional damping reduces ringing and improves
the tweeterâs smoothness of reproduction while still delivering
the high-frequency energy and extension that metal domes are
known for. Download  C1-690 Product Manual  USA Limited
Warranty: Â One (1) year from the original date of purchase
Warranty Details  Find the answers to many common questions: Â