Celestion NTR21 5010JD 21" 1600 watt Neo Subwoofer

The Celestion NTR 21" neodymium subwoofer offers 1600Wrms (AES standard) power handling
and 98dB sensitivity
5" high temperature Inside/Outside voice coil efficiently dissipates heat, preventing
sensitivity loss through thermal compression
Double suspension and a "multi-roll" surround provide exceptional linearity at
extremes of cone excursion
Rigid lightweight carbon fibre loaded cone delivers improved performance and
faster response
Intelligent heat management in both chassis and magnet assembly design
further minimizes distortion.

Designed & manufactured in the UK.

See specification tab for technical details or Click HERE for full details, response curves and Thiele & Small parameters. (opens in new window)

Model: NTR21-5010JD

note: Price includes VAT

General Specifications
Nominal diameter . . . . . . . . . . . . . . . . . . . . . . 530mm/21in
Power rating1 . . . . . . . . . . . . . . . . . . . . . . . . . . . 1600Wrms
Nominal impedance . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8O
Sensitivity2 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 98dB
Frequency range. . . . . . . . . . . . . . . . . . . . . . . . . 30-3000Hz
Voice coil diameter . . . . . . . . . . . . . . . . . . . . . . 125mm/5in
Chassis type . . . . . . . . . . . . . . . . . . . . . . . . Cast aluminium
Magnet type . . . . . . . . . . . . . . . . . . . . . . . . . . . Neodymium
Coil material. . . . . . . . . . . . . . . . . . . . . . . . . . Round copper
Former material. . . . . . . . . . . . . . . . . . . . . . . . . . Glass fibre
Cone material . . . . . . . . . . . . . . . Carbon fibre loaded paper
Surround material . . . . . . . . . . . . . . . . . . . . . . Cloth-sealed
Suspension . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Double
Xmax3. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9mm/0.35in
Gap depth. . . . . . . . . . . . . . . . . . . . . . . . . . . . 12mm/0.47in
Voice coil winding width . . . . . . . . . . . . . . . . . 30mm/1.18in
Small Signal Parameters
D . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 0.46m/18.11in
Fs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30.2Hz
Mms . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 318.85g/11.26oz
Mmd . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 280.52g/9.9oz
Qms . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5.231
Qes. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 0.309
Qts . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 0.291
Re . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5.36O
Vas . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 341.43lt/12.05ft3
BI . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32.39Tm
Cms . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 0.087mm/N
Rms. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11.55Kg/s
Le (at 1kHz) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2.063mH
Mounting Information
Overall diameter . . . . . . . . . . . . . . . . . . . . . 550mm/21.65in
Overall depth . . . . . . . . . . . . . . . . . . . . . . . . . . 254mm/10in
Cut-out diameter . . . . . . . . . . . . . . . . . . . . 492mm/19.37in
Mounting slot dimensions 12.5mm x 8.5mm/0.49in x 0.33in
Number of mounting slots . . . . . . . . . . . . . . . . . . . . . . . . . 8
Mounting slot PCD range. . . . . . . . 520-528mm/20.5-20.8in
Unit weight . . . . . . . . . . . . . . . . . . . . . . . . . . . 12.8kg/8.8lb