Pair Radian 1245 Diaphragm 950PB JBL 2445H 2446H 2447H 2450H 2440H 2441H 376H
Radian Audio Engineering, Inc., manufactures premium replacement diaphragms for a wide variety of JBL compression drivers designed for use in professional loudspeaker systems utilized in fixed installation and touring applications. Each replacement diaphragm provides high efficiency and accurate reproduction with extended bandwidth. Replacement diaphragms are designed and manufactured to have equivalent or better performance than the original. Compression domes are precision formed from heat-treated, structural aluminum alloy and bonded to a copper-clad aluminum voice coil with a Kapton former utilizing proprietary tooling. Aluminum has a higher strength-to-weight ratio than titanium providing low-distortion, highfidelity response that delivers clear, crisp music and speech for theatrical, auditorium, stadium and church installations. The suspension utilizes a Mylar surround, rather than a metal one-piece dome and surround, which enhances the replacement diaphragm’s reliability and eliminates fatigue stresses that destroy other compression driver diaphragms. The Mylar surround also provides good dampening of the voice coil/diaphragm assembly for smooth, low-distortion, linear output with excellent transient response. To ensure longer diaphragm life, our high temperature voice coil former and advanced adhesives permit each replacement diaphragm to sustain high RMS and peak power levels, equivalent or better than the original. If necessary, the diaphragm/voice coil assembly may be rapidly replaced in the field. The self-aligning diaphragm assembly assures simple installation and accurate alignment with the same polarity as the original. Unparalleled power handling, high-frequency performance, reliability and low distortion make Radian premium replacement diaphragms the preferred choice for loudspeaker repair centers, consultants, sound system designers, contractors and engineers worldwide.
Specifications
Brand
Radian
Model
8-1245
Nominal Impedance (Ohms)
8 ohm
RMS Power
90 W
Peak Power (Watts)
180 W
Usable Frequency Range (Hz)
500Hz-20k Hz
Recommended Minimum Crossover
500 Hz
Moving Diaphragm Material
heat-treated alumi num alloy
Diaphragm Thickness
0.003″
Surround Material
Mylar
Voice Coil Diameter
4″
Voice Coil Wire Material
Edgewound copper-clad aluminum
Parameters
Minimum Impedance (Zmin)
12 ohm
DC Resistance (Re)
8.5 ohm
Mounting and Shipping Information