Description
The LASE Replacement Speaker for Yorkville 18ND063-8 & 7465 features high efficiency and extended linearity. The radiator ensures efficient heat dissipation, allowing the user to power it to its max potential without fear of overheating. The aluminum voice coil provides a properly aligned Q factor and high sensitivity. Our specially designed shallow triple-roll surround guarantees low midrange distortion, and the fiberglass former voice coil, polycotton suspensions, and treated cone contribute to the LASE 18ND063-8's high power handling capability. When mounted in compact size bass reflex enclosures, the combination of a short voice coil, low mass, and suspension control makes the LASE 18ND063-8 an excellent choice for high power, 2-way satellite applications.The LASE 18ND063-8 is a popular replacement speaker for EAW, Yorkville, Sonic, Martin Audio, and other subwoofer speaker systems.
FEATURES
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Professional / concert touring mid-bass driver
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4" Edgewound Aluminum Voice Coil on a fiberglass former
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1200 watt (RMS) 2400 watt continuous program power handling
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High sensitivity and low distortion
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Shaped shallow triple-roll damped surround
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Primarily designed to be horn loaded in medium and long throw system
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Inverted dust cap minimizes cone distortion, improves coupling to a phase plug
SPECIFICATIONS
- Nominal Diameter: 18"
- Power Handling: 1200 W (rms)
- Power Handling: 2400 W (max)
- Impedance: 4 ohm
- Frequency Response: 35-1KHz
- Sensitivity: 98 db2.83V/1m
- Xmax: 9mm
- Voice Coil Diameter: 4"
- Voice Coil Former: Fiberglass
- Voice Coil Wire: High-temp copper wire
- Weight: 20 lbs (9.07 kgm)
- Shipping Weight: 22.8 lbs (10.34 kgm)
- Shipping Dimensions: L 20" x W 20" x H 10.5" (508mm x 508mm x 266.7mm)
THIELE - SMALL PARAMETERS
- RESONANCE FREQUENCY (FS): 31 Hz
- DC RESISTANCE (RE): 5.10 ohm
- MECHANICAL FACTOR: 4.2 Qms
- ELECTRICAL FACTOR (QES): 0.27 Qes
- TOTAL FACTOR: 0.26 Qts
- BL FACTOR (BL): 28T x m
- EFFECTIVE MOVING MASS (MMS): 211 g
- EQUIVALENT CAS AIR LOADED (VAS): 8.9 liters
- EFFECTIVE PISTON AREA (SD): 1210cm2
- MAX. LINEAR EXCURSION (XMAX): 9 mm
- VOICE COIL INDUCTANCE @ 1KHZ (LE1K): 1.7 mH
- HALF-SPACE EFFICENCY (EFF): 3.01%