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This acclaimed subwoofer driver strikes an outstanding balance in power handling, enclosure requirements and excursion to deliver excellent results in medium power applications. Several exclusive JL Audio technologies and proprietary assembly techniques are applied to the 10W3v3 to enhance linearity and reliability.The 10W3v3-4 is best used with amplifier power in the 150W - 500W range and is optimized to operate in a compact 0.625 cu. ft. (17.7 l) sealed enclosure, or a 1.125 cu. ft. (31.9 l) ported enclosure.
Specifications
General Specifications
Continuous Power Handling (RMS) 500 W
Recommended Amplifier Power (RMS) 150 - 500 W
Nominal Impedance (Znom) 4 Ω
Physical Specifications
Nominal Diameter: 10.0 in / 250 mm
Overall Diameter (A): 10.5 in / 267 mm
Mounting Hole Diameter (B): 9.0625 in / 230 mm
Bolt Hole Circle Diameter (C): 9.7 in / 246.5 mm
Motor Outer Diameter (D): 5.25 in / 133 mm
Mounting Depth (E): 5.93 in / 151 mm
Driver Displacement: 0.049 cu ft / 1.39 L
Net Weight: 12.25 lb / 5.56 kg
Parameters
Free Air Resonance (Fs): 31.49 Hz
Electrical “Q” (Qes): 0.523
Mechanical “Q” (Qms): 7.017
Total Speaker “Q” (Qts): 0.485
Equivalent Compliance (Vas): 1.138 cu ft / 32.23 liters
One-Way Linear Excursion (Xmax)*: 0.550 in / 14.0 mm
Reference Efficiency (no): 0.19%
Efficiency (1 W / 1 m)**: 84.87 dB SPL
Effective Piston Area (Sd): 53.475 sq in / 0.0345 sq m
DC Resistance (Re): 3.567 Ω
* Xmax specifications are derived via one-way voice coil overhang method with no correction factors applied. ** Efficiency (1 W / 1 m) is not an accurate indicator of a subwoofer’s output capability and should not be used as a comparison to other subwoofers to determine which one is “louder”.
Sealed Enclosure Specifications
Wall Thickness: 0.75 in / 19 mm
Front Baffle Thickness: 0.75 in / 19 mm
Volume (net int.): 0.625 cu ft / 17.7 L
External Width (W): 17.875 in / 454 mm
External Height (H): 11 in / 279 mm
External Depth (D): 9 in / 229 mm
F3: 46.9 Hz
Fc: 52.9 Hz
Qtc: 0.818
Ported Enclosure Specifications
Wall Thickness: 0.75 in / 19 mm
Front Baffle Thickness: 0.75 in / 19 mm
Volume (net int.): 1.125 cu ft / 31.9 L
External Width (W): 23 in / 584 mm
External Height (H): 12 in / 305 mm
External Depth (D): 13 in / 330 mm
Internal Slot Port Width (SW): 1.25 in / 32 mm
Internal Slot Port Height (SH): 10.5 in / 267 mm
Internal Slot Port Length (SL): 28.625 in / 727 mm
Port Extension Length (EL): 15 in / 381 mm
Tuning Frequency (Fb): 31.8 Hz
F3: 31.7 Hz
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:
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.
Summary: 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.
Summary: This assembly technique, conceived by JL Audio, ensures proper surround geometry in the assembled speaker for better excursion control and dynamic voice coil alignment.
Detailed Information: JL Audio's patented FCAM™ technology is an innovative method of bonding the surround/cone assembly to the voice coil former/spider assembly. This feature helps ensure concentricity of the surround, spider and voice coil without torquing the suspension to achieve it. This allows for the inevitable, slight variations in production part dimensions without having them negatively impact the integrity of the suspension and coil-centering at high excursions.
Vented Reinforcement Collar
Summary: JL Audio's Vented Reinforcement Collar (VRC®) improves the