Competive Price GJ15  15" high-end neodymium pro woofer,Stereo Super Bass

VRX  monitor/ pro audio
SRX pro speaker/speaker box
SRX dual 15" professional speaker/ pro audio

Other size dual voice coil speaker , neodymium speakers also providing:
GJ12 (12 in) neodymium woofer
GJ18 (18 in)  neodymium woofer

Features:
A. Neodymium magnet,
B. Aluminum frame
C. Dual voice coil
D. Differental Drive
E.  Imported paper cone
F. Light weight
 
1.GJ15 Differential Drive 15" woofer is a capable, durable, touring-quality PA speaker.
2.Compared with traditional driver designs, patented Differential Drive employs a pair of inline voice coils in separate magnetic gaps instead of a single voice coil-gap configuration.
3.Available space is more effectively utilized, and heat is removed from the motor structure more efficiently. Specifically, the voice coils are wound reversely and are immersed in magnetic fields of opposite polarity.
4.This ensures reduced magnetic leakage flux and focuses more magnetic energy in the gaps where it is needed.
 
Highlights
  • Tour-class woofer with patented motor design
  • Better heat dissipation increases power handling, reduces power compression
  • Reduced inductance extends upper response
  • Lightweight, compact neodymium magnet system
  • Push-pull operation lowers distortion
  • Magnetically shielded for use anywhere

Specifications:
 
GJ15 Product Specifications
Nominal Diameter15"
Power Handling (RMS)800 Watts
Power Handling (max)1400 Watts
Impedance8 ohms
Sensitivity97 dB 1W/1m
Voice Coil Diameter3"
Thiele-Small Parameters
Resonant Frequency (Fs)37 Hz
DC Resistance (Re)5.1 ohms
Voice Coil Inductance (Le)1.7 mH
Mechanical Q (Qms)3.3
Electromagnetic Q (Qes)0.36
Total Q (Qts)0.32
Compliance Equivalent Volume (Vas)6.22 ft.³
Maximum Linear Excursion (Xmax)8 mm
Materials of Construction
Cone MaterialPaper
Magnet MaterialNeodymium
Mounting Information 
Overall Outside Diameter15.125"
Baffle Cutout Diameter11.375"
Depth8"
# Mounting Holes8
Optimum Cabinet Size 
Sealed Volume1.18 ft.³
Sealed F391Hz
Vented Volume2.44 ft.³
Vented F356 Hz