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Because it was
the first system to gain THX approval, the 4675 system described here was
subsequently “copied” numerous times
by both domestic and foreign suppliers in an effort to gain their own THX
certification..
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Using state of
the art JBL 2226 low frequency drivers and the equally regarded 2446 high
frequency compression driver, the system is capable of mid-band instantaneous
peak levels of 105 dB at a distance of 20 meters (66 ft).
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The system is
designed for bi-amplification. The enclosure is ruggedly built, and the
integral horn mounting bracket, model 2506, facilitates precise horn aiming.
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