CELESTION NTR215010JD 21 Neodymium Sub 1600w Rms Dr

This item is brand-new, factory sealed.

* 21-in neodymium subwoofer offers 1600 Watts RMS (AES standard) power handling & 98dB sensitivity * 5-in high temperature Inside/Outside voice coil efficiently dissipates heat, preventing sensitivity loss through thermal compression
* Double suspension & a Multi-Roll surround provide exceptional linearity at extremes of cone excursion
* Rigid lightweight carbon fibre loaded cone delivers improved performance & faster response
* Intelligent heat management in both chassis & magnet assembly design further minimizes distortion
* Nominal diameter: 530mm/21-in
* Power Rating: 1600 Watts RMS
* Nominal impedance: 8 Ohms
* Sensitivity: 98dB
* Frequency range: 30-3000Hz
* Voice coil diameter: 125mm/5-in
* 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
* Xmax: 3: 9mm/0.35-in
* Gap Depth: 12mm/0.47-in
* Voice coil winding width: 30mm/1.18-in
Small Signal Parameters
* Fs: 30.2Hz
* Mms: 318.85g/11.26oz
* Mmd: 280.52g/9.9oz
* Qms: 5.231
* Qes: 0.309
* Qts: 0.291
* Re: 5.36
* Vas: 341.43lt/12.05ft3
* Bi: 32.39Tm
* Cms: 0.087mm/N
* Rms: 11.55Kg/s
* Le (at 1kHz); 2.063mH
* D: 0.46m/18.11-in

* Diameter: 550mm/21.65-in
* Overall Depth: 254mm/10-in
* Cut-out Diameter: 492mm/19.37-in
* Mounting slot Dimensions: 12.5mm x 8.5mm/0.49in x 0.33-in
* Number of mounting slots: 8
* Mounting PCD Range: 520-528mm/20.5-20.8-in
* Unit weight: 12.8kg/28.2lb
* Packed Dimensions & Weight:
* Single pack size: W x D x H; 575mm x 575mm x 280mm; /22.6in x 22.6in x11.0-in
* Single pack Weight: 13.2kg/29lb [Single]