Eminence NSW4018-8 18" Tour Grade Speaker 1,600 Watts-RMS 8-ohm Subwoofer Driver
Eminence NSW4018-8 18" tour grade subwoofer is designed to produce extremely high output for extended periods while producing low distortion. The lightweight neodymium motor has been optimized for maximum excursion capabilities with extensive ventilation allowing the 4" voice coil to handle up to 1,600 watts RMS with minimal power compression.
Key Features
4" voice coil with ample venting for high power and low compression
Weighs less than 21 lbs. thanks to the Powerful neodymium motor
Rigid cast frame will withstand the use and abuse of the pro sound environment
X5 pulp paper cone is extremely rigid with excellent damping characteristics
Product Details
Brand Eminence Speaker
Model NSW4018-8
Part Number 18479A-U
UPC 876358004225
Weight 29.55
Product Specifications
Nominal Diameter 18"
Power Handling (RMS) 1600 Watts
Power Handling (MAX) 3200 Watts
Impedance 8Ω
Frequency Response 27 to 1,300Hz
Sensitivity 96.6dB 2.83V/1m
Voice Coil Diameter 4"
Thiele-Small Parameters
Resonant Frequency (Fs) 36Hz
DC Resistance (Re) 3.86Ω
Voice Coil Inductance (Le) 1.54mH
Mechanical Q (Qms) 8.46
Electromagnetic Q (Qes) 0.39
Total Q (Qts) 0.38
Compliance Equivalent Volume (Vas) 5.81ft³
Mechanical Compliance of Suspension (Cms) 0.08mm/N
BL Product (BL) 28.24T·m
Diaphragm Mass Inc. Airload (Mms) 237g
Maximum Linear Excursion (Xmax) 15.21mm
Surface Area of Cone (Sd) 1217cm²
Materials of Construction
Cone Material Paper
Surround Material Cloth
Voice Coil Wire Material Copper
Voice Coil Former Fiberglass
Basket / Frame Material Cast Aluminum
Magnet Material Neodymium
Mounting Information
Overall Outside Diameter 18.13"
Baffle Cutout Diameter 16.60"
Depth 9.42"
# Mounting Holes 8
Recommended Enclosure Volume
Sealed Volume 3ft³
Sealed F3 76.5Hz
Vented Volume 6ft³
Vented F3 36Hz