Eminence NSW6021-6 21″ Professional Neodymium Tour Grade Subwoofer



Availability: Out stock

Out of stock

SKU: 1339sp Category:

The Eminence NSW6021-6 is the best 21-inch professional subwoofer on the market. With a massive 6″ voice coil, powerful neodymium motor, double spiders, and extensive venting this driver has 21 mm Xmax and handles up to 2,500 watts RMS. The result is unrivaled displacement and exceptionally high output capability with top of the line performance.

21-inch Tour Grade – American Muscle Arguably the best 21-inch subwoofer on the market. Advanced measurement systems and FEA optimization tools were implemented on this next generation of tour grade worthy subwoofers by Eminence. The result is absurd, unrivaled displacement and exceptionally high power handling with top of the line performance in small to large vented enclosures.

Nominal Basket Diameter 21″, 533 mm
Nominal Impedance* 6 Ω
Power Rating*
Program Power 5000 W
Watts 2500 W
Resonance 29 Hz
Usable Frequency Range 25 Hz – 0.6 kHz
Sensitivity* 97.0 dB
Magnet Weight 45 oz.
Gap Height 0.75″, 19 mm
Voice Coil Diameter 6″, 152 mm
Resonant Frequency (fs) 29 Hz
DC Resistance (Re) 3.8 Ω
Coil Inductance (Le) 1.38m H
Mechanical Q (Qms) 15.35
Electromagnetic Q (Qes) 0.31
Total Q (Qts) 0.31
Compliance Equivalent Volume (Vas) 224.58 liters / 7.93 cu.ft.
Peak Diaphragm Displacement Volume (Vd) 3448.2 cc
Mechanical Compliance of Suspension (Cms) 0.06 mm/N
BL Product (BL) 33.79 T-M
Diaphragm Mass Inc. Airload (MMs) 508 grams
Efficiency Bandwidth Product (EBP) 94
Maximum Linear Excursion (Xmax) 21 mm
Surface Area of Cone (Sd) 1642 cm2
Maximum Mechanical Limit (Xlim) 40.4 mm
Recommended Enclosure Volume
Sealed N/a
Vented 155.74-481.39 liters / 5.50-17.00 cu.ft.
Driver Volume Displaced 0.379 cu.ft. / 10.72 liters
Overall Diameter 21.65″, 549.9 mm
Baffle Hole Diameter 19.83″, 503.7 mm
Front Sealing Gasket YES
Rear Sealing Gasket
Mounting Holes Diameter 0.34″, 8.6mm
Mounting Holes B.C.D. 20.67″, 525mm
Depth 10.39″, 263.9 mm
Net Weight 48.1 lbs, 21.82 kg
Shipping Weight 51.6 lbs, 23.41 kgs
Coil Construction I/O Copper voice coil
Coil Former Fiberglass former
Magnet Composition Neodymium magnet
Core Details Vented motor
Basket Materials Die-cast aluminum basket
Cone Composition Wet pressed, X5 cone pulp
Cone Edge Composition Advanced Polycotton surround
Dust Cap Composition Wet pressed, X5 dust cap pulp

response graph

Weight 51.6 lbs


There are no reviews yet.

Only logged in customers who have purchased this product may leave a review.