Celestion NTR21-5010JD 21" Neodymium 1600W RMS 8 ohm Speaker Driver *MADE IN UK*

Description

Celestion NTR21-5010JD 21" Neodymium 1600 W RMS 8 ohm Speaker Driver
MADE IN U.K.
Celestion's NTR21-5010JD 21" subwoofer features an advanced neodymium-powered motor for maximum output without maximum weight. To keep control of the driver when used with high power amplifiers (of up to 1,600 watts RMS), Celestion employs double suspension and a multi-roll surround for exceptional linearity during extreme excursion moments that are common with lower frequency reproduction. A lightweight carbon fiber-loaded paper cone is used due to its rigidity and ability to respond quickly to audio impulses.
Intelligent heat management is designed into the cast aluminum chassis, high temperature 5" inside/outside wound voice coil, and extensively vented neodymium magnet which prevents thermal compression and the resulting loss and sensitivity. Last, but certainly not least, this 21" subwoofer has an amazing 9 mm of Xmax to move massive amounts of air.
Product Specifications
Nominal Diameter 21"
Power Handling (RMS)1,600 Watts
Power Handling (max) 3200 Watts
Impedance 8 ohms
Frequency Response 30 to 3,000 Hz
Sensitivity 98 dB 1W/1m
Voice Coil Diameter 5"
Thiele-Small Parameters
Resonant Frequency (Fs) 30.2 Hz
DC Resistance (Re) 5.36 ohms
Voice Coil Inductance (Le) 2.06 mH
Mechanical Q (Qms) 5.23
Electromagnetic Q (Qes) 0.31
Total Q (Qts) 0.29
Compliance Equivalent Volume (Vas) 12.05 ft.³Maximum
Linear Excursion (Xmax) 9 mm
Materials of Construction
Cone Material Carbon Fiber Composite
Surround Material Cloth
Basket / Frame Material Cast Aluminum
Magnet Material Neodymium
Mounting Information
Overall Outside Diameter 21.65"
Baffle Cutout Diameter 19.37"
Depth 10"
# Mounting Holes 8