15” Woofer, 3” voice coil, 500 W, 99 dB

 

15B500 loudspeaker

KEY FEATURES:

  • 99 db 1W / 1m average sensitivity
  • 77 mm high temperature sandwich voice coil
  • 1000 W AES program power
  • Powerful, vented 180 mm magnet structure
  • Double aluminium demodulating rings for lower distortion and improved heat dissipation
  • Double silicone spiders for improved excursion control and linearity
  • Water protected cone (front)

 

Application : High power woofer

15B500 loudspeaker combining good linearity and efficiency with high power handling capabilities, with use of 77 mm voice coil. It features aluminium die cast frame, water protected cone, 180 mm vented magnet structure and 20 mm high voice coil. It has aluminum demodulating rings that reduces distortions and improves cooling of voice coil. 15B500 is suitable for application in a wide variety of enclosure types and particularly as LF driver in 2- or 3- way systems.

 

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

15"/388 inch/mm
8 Ohm
6.39 Ohm
500 W
1000 W
(60-2000 Hz) 99 dB/W/m
38 - 2500 Hz
77 mm
Copper
Glassfiber
20 mm
11 mm
Paper
Die cast aluminium
Strontium ferrite
1.20

THIELE-SMALL PARAMETERS

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

38.20 Hz
12.06
0.274
0.268
145.82 Litres
114.40 grams
5.23 Ohms
829.6 cm2
±7.25 mm
0.152 mm/N
22.91 T.m
1.25 mH

1. AES standard. Power is calculated on rated minimum impedance. Measurement is in 120 L box enclosure tuned 56 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

388 mm
355 mm
8 eliptic 7x8 mm
370/372 mm
171.5 mm
7.8 kg

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