JL Audio C7-100ct 1" Component Dome Tweeter - Single Tweeter

The C7-100ct represents the pinnacle of JL Audio’s automotive speaker design, crafted with precision engineering and cutting-edge technology. This high-performance component tweeter delivers exceptional high-frequency accuracy, ensuring an immersive and detailed listening experience.

Unrivaled High-Frequency Performance
Designed for active sound systems, the C7-100ct does not include passive crossover networks. Instead, JL Audio recommends using a high-quality tuning DSP, such as the TwK™ 88 or D8, along with a dedicated amplifier channel for each C7 driver. With precise tuning of equalization, delay, and crossover filters, the C7-100ct achieves optimal in-vehicle audio performance.

Advanced Engineering and Design

Premium Dome Diaphragm
Corundum ceramic-coated aluminum alloy diaphragm – Ultra-rigid, lightweight, and environmentally stable
True piston operation at high frequencies – Delivers exceptional detail without added moving mass

Optimized Suspension System
Treated silk S-roll surround – Ensures smooth, controlled movement of the diaphragm
Ferrofluid in the magnetic gap – Enhances damping while maintaining unrestricted excursion

High-Precision Motor Design
Neodymium magnet with U-Yoke motor topology – Provides a high-density magnetic circuit
Under-hung voice coil – Copper-clad aluminum wire on an aluminum former for reduced distortion
Advanced FEA-optimized magnetics – Minimizes even-order distortion, IMD, and AMD, resulting in superior clarity

Acoustic Housing and Directivity Control
Tweeter housing shape enhances sensitivity – Boosts response in a specific frequency range
Improved directivity control – Ensures consistent, balanced sound dispersion

Design Bandwidth and Frequency Response
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

Each C7 tweeter undergoes rigorous performance verification, and owners can register their unit online to receive a copy of its specific Acoustical Test Report.

Sold individually.

Specifications

General Specifications
Continuous Power Handling (RMS) 100 W
Peak Music Power 200 W
Recommended Amplifier Power (RMS) 50 - 150 W / Ch.
Nominal Impedance 4 Ω
Frequency Response 3 kHz - 30 KHz ± 3 dB

Parameters
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

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 (B) 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

Alpine R2-S65 R-Series 6.5" Next Gen Speakers with Installation

The Next-Generation R-Series sound system line features the same “Loud and Fun” experience now certified for High-Resolution Playback.

Hi-Res Certified
Using “trickle-down” technology, inspired design, and performance cues from the Ultra-High-Resolution AlpineF#1Status systems, the Next-Generation R-Series Speakers are Hi-Res Audio Certified and able to reproduce up to 40kHz frequency response. This ultra-wide bandwidth brings music even closer to the original source while the classic R-Series design maintains the “loud and fun” performance quality that long-time fans have come to enjoy.

Glass-Fiber Reinforced Cone
The new lightweight and rigid glass fiber-reinforced cone material allows for extreme movement and low distortion which results in an incredibly accurate and clean sound during playback.

Upgraded Mid-Bass
The Next-Generation R-Series speakers utilize a ferrite magnet, different from the neodymium from previous generations, and a larger motor structure that contributes to more mid-bass during the playback. Despite the larger motor structure, the speakers still maintain the same depth for easy installation.

HAMR Surround
Alpine’s HAMR Surround (High-Amplitude Multi-Roll) allows for a maximum cone excursion, while maintaining excellent control. This results in strong bass at high volumes without distortion.

Pro vs Standard
The Next-Generation R-Series speaker line offers two pathways for performance: the “Pro” and “Standard” models. The R2-S65 is a standard coaxial speaker set that includes a 6.5” Mid-Range and 1” Coaxial Tweeter with a flexible in-line crossover network that simplifies installation.

Specifications
Maximum Peak Power: 300 Watts
Maximum RMS Power: 100 Watts
Nominal Impedance: 4 Ohm
Frequency Response: 65Hz-40kHz
Sensitivity: 88dB SPL (1W @ 1m)
Woofer Mounting Depth: 6,3cm
Woofer Cutout Diameter: 13,5cm

What's in the Box (x2) 6.5” Mid-Bass Speakers w/1" Coaxial Tweeters
(x2) Grilles
Mounting Hardware (x8 Screws, x8 Speed Clips)
Alpine Registration Card
Alpine Limited Warranty Sheet
Owner’s Manual
Installation Guide

JL Audio C7-350cm 3.5" Component Midrange with Grille - Single Midrange Speaker

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 C7-350cm component midrange is designed to operate in a 3-way system, with a woofer and tweeter. Conceived and purpose-built from the ground up, it offers exceptional transient response and outstanding linearity, resulting in unsurpassed clarity and natural mid-range reproduction. 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.

C7-350cm Design Notes

Suspension Design
The moving assembly is suspended and damped via a 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 excursion.

Motor Design
The C7-350cm employs a high-density magnetic circuit with a high-grade, neodymium magnet, and a specially machined, U-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.

A 36 mm (1.42 inch) diameter, overhung voice coil is employed, wound with copper-clad aluminum 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
A purpose-engineered cast alloy basket is employed, featuring thin spokes to maximize rear open area.

Design 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 USA with Global Components
Sold individually, with a cast-alloy grille tray, one fine mesh steel grille insert and one spiral steel grille insert.

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.

Specifications

• Continuous Power Handling (RMS) 100 W
• Peak Music Power 200 W
• Recommended Amplifier Power (RMS) 50 - 150 W / Ch.
• Nominal Impedance 4 Ω
• Frequency Response 300 Hz - 10 KHz ± 3 dB

Parameters

• Moving Mass (Mms) 4.009 g
• Equivalent Compliance (Vas) 0.015 cu. ft. (0.430 liters)
• Mechanical Compliance (Cms) 0.000257 m/N
• Magnetic Strength (BL) 4.66 N/A
• One Way Linear Excursion (Xmax) 1 mm
• Effective Piston Area (Sd) 5.31 sq. in. (0.003426 sq. m)
• Total Speaker “Q” (Qts) 0.541
• Mechanical “Q” (Qms) 6.454
• Reference Efficiency (no) 0.27%
• Free Air Resonance (Fs) 156.9 Hz
• Efficiency 86.5 dB @ 1W / 1m
• 92.5 dB @ 1W / 0.5m
• Sensitivity 89.5 dB @ 2.83V / 1m
• Electrical “Q” (Qes) 0.59
• Voice Coil Resistance (Re) 3.245 Ω

Midrange Physical Specifications

• Frame Outer Diameter (A) 3.45 in / 88 mm
• Bolt Hole Circle Diameter (B) 3.15 in / 80 mm
• Mounting Hole Diameter (C) 2.87 in / 73 mm
• Grille Tray Outer Diameter (D) 3.95 in / 100 mm
• Frontal Grille Protrusion (E) 0.58 in / 15 mm
• Mounting Depth (F) 1.46 in / 37 mm
• Motor Outer Diameter (G) 2.36 in / 60 mm

Technology

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 aimed at decoding what we refer to as the "Loudspeaker Genome"... a project aimed 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:

1. Linear motor force over the speaker's operational excursion range
2. Consistent motor force with both positive and negative current through the coil
3. 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.

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.

Detailed Information:
Many speakers employ venting techniques to enhance voice coil cooling. This is typically accomplished by having big holes in the sides of the frame just below the spider attachment shelf. While it provides a modest cooling benefit, this low-velocity air-flow does not blow directly or strongly on the voice coil.

Our patented design improves upon this cooling technique in a number of ways. By elevating the frame above the top-plate of the motor (via stand-offs integrated into the bottom of the frame) a narrow, high-velocity air-path is created between the bottom surface of the frame and the top surface of the top-plate. This air path leads directly to the voice coil and then turns upward into the spider air cavity. By utilizing the pumping action of the spider through this focused air path, a large volume of cool air hits the coil windings directly.

Another important benefit is that the upper surface of the top-plate (one of the speaker's hottest parts) is directly exposed to cooling air flow, whereas on a conventional design it is isolated from the air flow by the lower flange of the frame. The elevated frame technology greatly increases thermal power handling, reduces compression effects and does so without any additional parts.

JL Audio Evolution C3-650 6.5" Component Speaker System

• Continuous Power Handling (RMS) 75 W
• Peak Music Power 225 W
• Recommended RMS Amplifier Power (per Ch.) 25 - 150 W
• System Efficiency 90.0 dB @ 1 W / 1 m
• System Nominal Impedance 4 Ω
• System Frequency Response 48 Hz - 25 KHz ± 3 dB

• Frame Outer Diameter (A) 6.50 in / 165 mm
• Grille Tray Outer Diameter (B) 6.74 in / 171 mm
• Rear Cover Outer Diameter (C) 4.08 in / 104 mm
• Frontal Coaxial Tweeter Protrusion* (D) 0.75 in / 19 mm
• Frontal Grille Protrusion** (E) 1.03 in / 26 mm
• Mounting Hole Diameter (F) 5.56 in / 141 mm
• Mounting Depth (G) 2.55 in / 65 mm

• Flush Mount Fixture Diameter (A1) 2.12 in / 54 mm
• Surface Mount Fixture Diameter (A2) 1.93 in / 49 mm
• Flush Mount Mounting Hole Diameter (B) 1.875 in / 48 mm
• Flush Mount Fixture Mounting Depth (C) 0.71 in / 18 mm
• Flush Mount Tweeter Frontal Protrusion (D1) 0.32 in / 8 mm
• Surface Mount Tweeter Frontal Protrusion (D2) 0.95 in / 24 mm

• Width (W) 3.36 in / 85 mm
• Height (H) 1.44 in / 37 mm
• Depth (D) 4.72 in / 120 mm

Focal 3.5WM

The Best of Focal Technologies

Focal ES 165 KE K2 Series 6.5" Component Speakers

Composed of two 6 1/2” (165mm) woofers and two TKME tweeters, the ES 165 KE kit is a compact, easy-to-install system. The speaker drivers’ K2 cones diffuse super dynamic, razor-sharp sound. Born from Focal’s expertise in all things acoustic, they combine the assets of lightness, rigidity and damping, all prerequisites of a good speaker driver.

The inverted dome TKME tweeters also feature an aramid fibre dome. Their exclusive ‘M’-shaped profile helps to improve control of cone deformation and to reproduce the high frequencies smoothly and accurately. The tweeters can be mounted in different ways: in the factory locations, flush or on angled brackets, for all-encompassing installation options.

The kit is supplied with aluminium grilles.

K2 Sandwich Cone
The aramid fibre cone inherits all of Focal’s unique know-how. Composed of an ultralight foam core, sandwiched between a thin layer of aramid fibre and a layer of fibreglass, it combines 3 key factors when it comes to acoustics: rigidity, lightness and damping, for sound that is as precise and dynamic as it can get.

TMD® Surround
The speaker drivers benefit from TMD (Tuned Mass Damper) technology, a patented innovation. This surround has a special profile, designed to better control the effect of resonance and reduce the distortion associated with deformations of the cone. The midranges are perfectly defined and very realistic.

TKME Tweeter
The ‘M’-profile TKME tweeter extends the frequency response to 22 kHz with an even greater reduction of distortion, for smooth and precise diffusion in the high treble. Coupled with a ‘push-pull’ motor, based on IAL2 technology, it achieves very low resonance frequencies for perfect harmonic balance.

More Linearity and Precision
The progressive spider on the K2 Power speaker drivers is built around a progressive section to reproduce all the impact of the bass and increase the linearity, precision and dynamics of the sound.

Increased SPL
The Radial VC cooling system for the speaker driver coil expels hot air from the coil towards the bottom of the motor through 6 holes. This improves control over the coil temperature, limiting the effects of heat compression and improving reliability. This improves the dynamics of the speaker driver and generates a powerful sound.

Optimised Crossovers
All the components used for the K2 Power crossovers have been specially selected and optimised to better control the effects of heat dissipation. These components are essential for managing the various channels and the soundstage reliably and efficiently.

Slim Profile
The ES 165 K2S and SUB 25 KXS kits have a shallow depth. This slim profile takes up minimal space whilst maintaining exceptional power handling.

Specifications - Woofer 6.5"
Nominal power: 100W
Maximum power: 200W
Sensitivity (2.83V/1m): 90.8dB
Cone: K2 Sandwich
Nom. impedance: 4Ω
Surround: Butyl
DC resistance: 3.2Ω
VC diameter: 32mm 1 1/4"
Former: Kapton
Layers: 2
Wire: CCAW
Magnet (dxh): 90x20mm 31/2x3/4"
Net weight: 1350g 3 lbs

Parameters
Rdc: 3.2Ω
Fs: 64Hz
Mms 14.5g
Cms 0.41mm/N
Vas 10l
Qts 0.62
Qes 0.69
Qms 5.7
Bxl 5.2 N/A
Sd 128.6cm2
SPL 89dB
Xmax 4.5mm

Focal ICU 100

• Woofer: 4" (100mm)
• Voice coil diameter: 1" (25mm)
• Max. power: 80W
• Nom. power: 40W RMS
• Sensitivity (2.83V/1m): 90.3dB
• Frequency response: 100Hz-21kHz
• Al/Mg inverted dome tweeter
• Accessories: delivered without grilles
• Integrated crossover: 6dB/oct

Infinity Kappa 603CF 6.5" Component Speaker System

Features

Specifications

Focal ES 165 K2E Component Speakers

Experience legendary K2 membrane woofers with the Focal ES 165 K2E component speakers, delivering natural, powerful, and immersive sound. With high sensitivity, these speakers produce dynamic, enveloping audio, while the central core’s ogive shape ensures optimal sound dispersion throughout the cabin. Get ready for an exhilarating in-car listening experience.

Crystal-Clear Highs with Smooth, Accurate Treble
Equipped with two TKME inverted dome tweeters, featuring an "M" profile aramid fiber design, the ES 165 K2E ensures precise and refined high-frequency reproduction. These tweeters, combined with bi-amplifiable audiophile crossovers, provide smooth, controlled treble for a true hi-fi experience on the road.

Signature K2: The Focal Standard in Performance
The K2 aramid fiber diaphragm is a hallmark of Focal’s acoustic innovation, renowned worldwide for its purity, precision, and lack of coloration. This cutting-edge technology guarantees an unmatched listening experience in your vehicle.

Customizable Installation for Perfect Fit
For maximum flexibility, the tweeters can be installed in three different ways:
Factory placement for seamless integration
Flush-mounted for a sleek, built-in look
Angled support for optimized sound direction

Advanced Focal Technologies for Superior Performance
K2 Sandwich Membrane: The Heart of Precision Audio
The diaphragm is a critical element in any speaker. Since 1986, Focal has perfected its aramid fiber sandwich membrane, recognized by its signature yellow color. The latest evolution consists of:
Ultra-light foam core for enhanced responsiveness
Aramid fiber layer for strength and accuracy
Glass fiber layer for durability and control

This combination ensures rigidity, lightness, and damping, delivering precise, dynamic, and uncolored sound reproduction.

Optimized Crossovers for Unmatched Audio Balance
A speaker’s crossover is crucial to its performance, ensuring each driver operates within its optimal frequency range. The K2 Power crossovers have been meticulously engineered for:
Improved heat dissipation
Enhanced channel separation
Superior soundstage precision

The result? A balanced, immersive audio experience with exceptional clarity.

TKME Tweeter: Extended High Frequencies and Harmonic Balance
Mounted on a highly durable aluminum frame, the TKME "M" profile tweeter extends frequencies up to 22 kHz, reducing distortion and providing an ultra-smooth high-frequency response. With IAL2 push-pull motor technology, it achieves low resonance frequencies, ensuring a perfectly balanced sound signature.

Focal ES 165 K2E: Elevate Your In-Car Audio
Combining innovative materials, cutting-edge engineering, and meticulous craftsmanship, the Focal ES 165 K2E delivers powerful, detailed, and immersive sound—bringing the ultimate hi-fi experience to your vehicle.

Specifications
Product type: 2-way separate kit
Membrane: K2 Power
Surround technology: Tuned Mass Damper
Tweeter: 165 mm
Filter: Separated
Frequency response (+/- 3dB): 60 Hz - 22 kHz
Maximum power: 200 watts
Motor: Ferrite
Nominal Impedance: 2 Ω
Nominal power: 100 W RMS
Sensitivity: 93 dB
Surround material: Butyl

• Aluminum Chassis Design
• K2 Power Sandwich Cone
• Separated Compact Crossover (Tweeter 0/+3/-3 dB/oct)
• TKM "M" Profile Aramid Fiber Inverted Dome Tweeter

Focal 165CA1SG

• 120 Watt Power Handling
• Built-In Crossover
• Rotating Inverted Dome Tweeter
• All Weather Woven Fiberglass Cone

Alpine S2-S40C 4" S-Series Next-Gen Hi-Res Component Speaker Set