18” Neodymium Woofer, 4.5” voice coil, 1600 W, for horn application

 

18NXB1601 copy

KEY FEATURES:

  • 115 mm ( 4.5”) high temperature sandwich voice coil
  • 3200 W AES program power
  • Vented neodymium magnet assembly with massive heatsink
  • Double aluminium demodulating rings for lower distortion and improved heat dissipation
  • Double silicone spiders for improved excursion control and linearity
  • Water protected cone

 

Application : High power bass

The 18NXB1601 neodymium bass loudspeaker is specially designed for horn application to deliver very high impact bass response, with exceptional high power capacity. It incorporates an 4.5" sandwich voice coil, double silicone spider assembly, paper cone with carbon fibers and die cast vented aluminium frame. Powerful, vented neodymium magnetic structure with massive heatsink and double demodulating rings reduced power compression. The result is high efficient transducer for bass horn applications, with the ability to handle very high excursion with low distortion and reduced thermal power compression.

 

SPECIFICATIONS

Nominal Diameter
Impedance
Minimum Impedance
Power Capacity AES ¹
Program Power ²
Sensitivity
Frequency Range
Voice Coil Diameter
Voice Coil Material
Voice Coil Former
V.C. Winding Depth
Magnet Gap Depth
Cone Material
Basket
Magnet
Flux Density

18"/461 inch/mm
8 Ohm 
6.89 Ohm
1600 W
3200 W
depends on the horn
30 - 250 Hz
115 mm (4.5”)
Copper
Glassfiber
32 mm
14 mm
Paper with carbon fibers
Die cast aluminium
Neodymium
1.1 T

THIELE-SMALL PARAMETERS

Fs
Qms
Qes
Qts
Vas
Mms
Re
Sd
Xmax*
Cms
BL 
Le at 1kHz 

34.64 Hz
5.75
0.301
0.286
146.23 Litres
248.5 grams
5.18 Ohms
1158 cm2
± 12.5 mm
0.0849 mm/N
30.48 T.m
1.20 mH

1.  AES standard. Power is calculated on rated minimum impedance. Measurement is in 180 L box enclosure tuned 43 Hz using a 40-400 Hz band limited pink noise test signal applied continuously for 2 hours.
2.  Program power is defined as 3db greater than AES Power Capacity.

* Linear Mathematical Xmax is calculated as: (Hvc - Hg)/2 + Hg/4 where Hvc is the voice coil depth and Hg is the gap depth.

MOUNTING INFORMATION 

Overall Diameter
Baffle Hole Diameter 
Mounting Holes
Bolt Circle Diameter
Overall Depth
Net Weight

461 mm
417 mm
8 eliptic 7 x 8,5 mm
438/441 mm
224 mm
11.7 kg

 

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