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Eminence NSW4018-8 18" Professional Neodymium Tour Grade Subwoofer Driver

Eminence Speaker
Part #290-5660

Eminence NSW4018-8 18" Professional Neodymium Tour Grade Subwoofer Driver

Eminence Speaker
Part #290-5660  
Model: NSW4018-8
Eminence's 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
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Overview

Eminence NSW4018-8 18" Professional Neodymium Tour Grade Subwoofer Driver

Capable of over 30 mm of peak-to-peak excursion, the Eminence NSW4018-8 18" professional subwoofer is designed to move a lot of air for powerful low frequency output. The FEA optimized neodymium motor assembly includes extensive venting to enable the 4" diameter inside/outside wound voice coil to handle up to 1,600 watts RMS with minimal power compression and low distortion. Supporting the motor is a rigid cast aluminum frame which provides solid mounting points to withstand the beating that can be expected in the professional sound environment. To improve efficiency the NSW4018-8 uses Eminence's rigid but lightweight X5 paper pulp cone. The result is an extremely long throw, lightweight, and exceptionally high power handling driver with top notch performance that is designed to handle everything you can throw at it.

Eminence was founded during the days when American Muscle ruled the road. There was no replacement for displacement, and for those of us in the professional audio industry, that statement still holds true. Professional audio is experiencing staggering growth. In anticipation of that growth, Eminence charged thier engineering team to design the best professional audio loudspeakers in the world. We insisted that they beat the performance and durability of every competitor.

The Eminence family of TOUR GRADE loudspeakers, designed and assembled in the USA, represents maximum power handling, maximum displacement, maximum SPL, and unequaled reliability. Advanced measurement systems and FEA optimization tools were implemented on this next generation of subwoofers.

Product Details

BrandEminence Speaker
ModelNSW4018-8
Part Number290-5660
UPC876358004225
Unit of MeasureEach
Weight29.55

Product Specifications

Nominal Diameter18"
Power Handling (RMS)1600 Watts
Power Handling (MAX)3200 Watts
Impedance8Ω
Frequency Response27 to 1,300Hz
Sensitivity96.6dB 2.83V/1m
Voice Coil Diameter4"

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 MaterialPaper
Surround MaterialCloth
Voice Coil Wire MaterialCopper
Voice Coil FormerFiberglass
Basket / Frame MaterialCast Aluminum
Magnet MaterialNeodymium

Mounting Information

Overall Outside Diameter18.13"
Baffle Cutout Diameter16.60"
Depth9.42"
# Mounting Holes8

Parts Express Staff Recommended Enclosure Volume

Sealed Volume3ft³
Sealed F376.5Hz
Vented Volume6ft³
Vented F336Hz

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