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The Peavey PRO 18 Low Frequency Audio Speaker features a Kevlar-impregnated cellulose cone and has a frequency range of 40 Hz to 1.5 kHz. It has a 3.0" diameter voice coil made of thermally bonded copper wire, Kapton former, and Nomex stiffener.
In the Box
Peavey PRO 18 Low Frequency Audio Speaker
Limited 1-Year Warranty
Table of Contents
Peak: 800 W peak Program: 400 W Continuous: 200 W
94 dB (1 W / 39.4" (1.0 m))
40 Hz to 1.5 kHz
Diameter: 3.0" / 76.2 mm Material: 2 layers, thermally bonded copper wire, Kapton former, and Nomex stiffener
Driver: 6.3 Ohms
Surface Area of Cone (Sd)
Voice Coil & Magnet System: 25.10 T/M
Free Air: 28.8 Hz
Volume of air having the same compliance (springiness) as the driver's suspension: 365.1 liters
Restorative: 117.9 µM/N
Total: 8.4 oz / 239.0 g
Resonance Characteristics of Mechanical Factors: 9.29 Resonance Characteristics of Electrical Factors: 0.391 Resonance Characteristics of Electrical & Mechanical Factors: 0.375
Distance the cone can move in one direction before the coil begins to leave the magnetic gap: 0.1" / 3.5 mm
Electrical to Acoustical Conversion Efficiency: 2.60
Displacement of the driver from negative Xmax to positive Xmax: 54.0 in³ (882 ml)