Data Sheet

1245 & 1225
PREMIUM JBL
®
REPLACEMENT DIAPHRAGMS
Radian Audio Engineering, Inc., manu-
factures premium replacement diaphragms
for a wide variety of JBL
®
compression driv-
ers designed for use in professional loud-
speaker systems utilized in fixed installation
and touring applications. Each replace-
ment 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 alu-
minum 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, high-
fidelity response that delivers clear, crisp
music and speech for theatrical, auditori-
um, stadium and church installations.
The suspension utilizes a Mylar
®
sur-
round, 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 replace-
ment 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-fre-
quency performance, reliability and low
distortion make Radian premium replace-
ment diaphragms the preferred choice for
loudspeaker repair centers, consultants,
sound system designers, contractors and
engineers worldwide.
AVAILABLE FOR JBL
®
1”, 1.4”, AND 2” DRIVERS
INDESTRUCTIBLE
MYLAR
®
SURROUND
ALUMINUM ALLOY
COMPRESSION DOME
EDGEWOUND ALUMINUM
VOICE COIL
HIGH TEMPERATURE
KAPTON
®
FORMER

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