JL Audio M3-770ETXv3-Gw-S-Gw 7.7" Enclosed Tower Coaxial Speaker System - Gloss White

Overview

Enclosed in these beautiful, injection-molded enclosures are our high-performance, M3 7.7-inch coaxial tower speakers. Specifically tuned for tower enclosure applications, these coaxial drivers deliver clean, loud audio that can be heard well beyond the boat when mounted up high. The enclosures feature a decorative, aluminum logo cap on the end opposite the speaker, which can be oriented to match any custom mounting application. Each is designed to mate with one of our clamp systems (sold separately, and available to fit a wide range of pipe diameters). The wire exits through the center of the mount, staying high and dry, and out of sight. Professional installation is strongly recommended. For best results, we recommend powering these systems with an amplifier in the 25-140 W per channel range. Like all JL Audio marine speakers, this system is built to withstand a real saltwater marine environment and deliver years of listening enjoyment. Sold as a pair. Need help determining the correct Pipe-Mounting Clamp for your installation" Download the ETXv3 Pipe Fixture Ruler.

General Specifications

System Nominal Impedance: 4 Ω
System Frequency Response: 55 Hz - 25 KHz ± 3 dB
System Efficiency: 90.5 dB @ 1 W / 1 m
Continuous Power Handling (RMS): 70 W
Enclosure Diameter (A): 7.70 in / 196 mm
Enclosure Depth (B): 12.52 in / 318 mm
Height including Mounting Clamp Receiver* (C): 8.56 in / 217 mm
Mounting Clamp Receiver / Enclosure Offset (D): 0.86 in / 22 mm *Mounting Clamps Required (Sold Separately)

Technology

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 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.

Marine Materials / Testing

Summary:
The design of marine products requires extensive materials testing to achieve reliability and longevity. Detailed Information:
Building serious marine products requires a real commitment to environmental testing and materials specification. To this end, JL Audio has invested in Ultraviolet testing chambers (to simulate years of sun exposure) and Salt Fog chambers (to simulate years of exposure to salt-water environments). This testing is critical to building products that will not only sound great in your boat, but will also sound great for many, many years. Materials Used:

• Injection-molded mica-filled polypropylene cone bodies with synthetic rubber surrounds, specifically formulated with UV inhibitors for marine duty.
• Marine-grade, synthetic fiber spiders with progressive roll designs to withstand high humidity.
• Specifically engineered polymer baskets are corrosion and UV-resistant and encapsulate the woofer's motor system to prevent corrosion.
• Gold-plated, marine-grade brass connection terminals
• Marine-grade stainless steel mounting hardware is included.

Kicker KMTC11 11" HLCD Tower Speaker System - Gloss Black

KICKER KMTC11 HLCD tower systems are made for incredibly smooth sound up close or at a distance - without harsh horn “glare.” Play them loud. Play them all day. These powerful horn-loaded speakers are the new standard for marine sound quality. Sold as pairs.

Form and Function

KMTC Tower Systems deliver great looks, total adjustability and incredible sound quality. Your tunes are loud and clear, whether you’re in the boat, at Party Cove or the end of a tow rope. Want to aim your sound" Easily rotate the speakers a full 354˚ without tools, then watch the LED’s light up the night in any one of seven colors. Don’t just be the life of the party. Be the reason for it.

• Four-Ohm Voice Coil
• High-Frequency Horn Design with Titanium-Dome Compression Drivers
• Stitched Polypropylene Cone With Santoprene® Surround
• UV-Resistant Polymer Basket
• Near full rotation swivel With Toolless Locking Cam/Toggle System
• Stainless Steel/ABS Clamp Fits 1.5 - 3.25-Inch Tubing
• Through-Clamp Wiring System With Mating Socket
• Single Bolt Speaker Removal System
• 316L Stainless Mounting Hardware Included
• Seven Color LED Grilles Included*
• Meets or Exceeds ASTM Standards for UV** and Salt/Fog Exposure***

*Upgradable to 20 Colors and 19 Lighting Modes with KMLC. **ASTM G154 400 hr. Accelerated UV Test ***ASTM B117 200 hr. Salt Fog Test The KMTC 11-Inch Tower System works best with 300 watts of recommended power per speaker. Adjustable Logo
On all KMFC, KMTC and KMTE products the logo is manually adjustable to 180 degrees.

Specifications

Woofer (in, cm): 11, 28 Impedance (Ohms): 4 Horn Loaded Compression Driver (in, cm): 1.4, 3.5 High Pass (dB), at Frequency (Hz): 12, 2.5k Low Pass (dB), at Frequency (Hz): 12, 2.5k Peak Power (watts, per ANSI/CTA-2031-A): 600 Recommended Amplifier Power (watts RMS): 150-300 Frequency Response (Hz): 20-20k Height incl. bracket (in, cm): 15-9/16, 39.6 Height from roll bar (in, cm): 13-5/8, 34.6 Diameter (in, cm): 11-7/8, 30.2 Depth (in, cm): 12-11/16, 32.3 LED Lighting: Yes

What's in the Box

2 - full-range speaker enclosures
Mounting hardware