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Typologies
Magnet Type
Nominal diameter (in/mm)
Program power (W)
Voice Coil Diameter (in)
Nominal Impedance (ohm)
Sensitivity (db 1W/1m)
Application
Loading

NDH18-4S

Key Features

General Specifications

Musical power (W): 2000
Nominal power AES (W) 1000
Nominal diameter (''/mm) 18”- 450 mm
Nominal impedance (Ω) 8
Voice coil diameter (mm): 100
Sensitivity 1W/1m (dB) 96.5
Spare part code RPNDH18-4S

Thiele Small Parameters

Note
Re 6.1 ohm
Fs 31 Hz
Qms 9.8
Qes 0.33
Qts 0.32
Mms 212 g
Cms
D 385 mm
Vas 239 l
BxL 27.7 Tm
Linear Mathematical Xmax 11.5 mm
n 2.1
Le (1kHz) 1.9 mH

Materials

Basket Type Alluminio Pressofuso
Magnet Type Neodimio
Cone Material Cellulosa Trattata
Suspension Material Nomex doppio roll
Spider Material Doppio in Nomex
Former material
Winding material
Connector type Faston
Cone shape
Gap height

Applications

Applications Subwoofer
Recommended Loading Bass Reflex
Loading Volume 120 l
Tuning Frequency 38 Hz
Frequency range 30 - 200 Hz

Dimension and weight

Overall diameter 388 mm
Total depth 195 mm
Flange thickness 13 mm
Front mount baffle cutout diameter 354 mm
N. of mounting holes 8
Mounting holes diameter (mm) 7 mm
Bolt circle diameter 370 mm
Gross weight 8 Kg

Other

NPieces per masterpacking 1

Models

Model Code Info
NDH18-4S PNDH18-4S

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