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27TBC/G is a High Definition metal dome tweeter with a wide, soft polymer
surround and a rear chamber.
Aluminium/magnesium alloy diaphragm with pistonic behaviour throughout the
audible frequency range, resulting in a good dispersion also above 10kHz.
A Hexagrid protects the diaphragm, and supports a phase plate which compensates
for a slight axial roll off towards 20 kHz.
Sonomax surround for low resonance, excellent mechanical linearity and stability
without magnetic fluid damping.
The voice coil is wound on an aluminium voice coil former with adequate
ventilating holes to eliminate noise from internal air flow.
The stiff and stable rear chamber with optimal acoustic damping allows the tweeter
to be used with moderately low crossover frequencies.
The chassis is precision moulded from glass fibre reinforced plastic, and its front
design offers optimum radiation conditions.
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