User care
Never disassemble unit and touch the inside or insert metallic stuff into the inside as this may lead to a
breakage or shock hazard.
When water enters, a breakage or shock hazard can be caused. To prevent an accident, immediately
unplug the power cord from the wall AC outlet and contact your nearest TOA dealer.
Wipe unit down with a soft cloth when cleaning the exterior of unit. Never use such volatile liquids as
thinner and benzine because their use may discolor unit.
Ensure to ground unit.
General description
The AC-F1 and the AC-L1 Electronic control units are designed for use with the SR-F1 speaker system
and the SR-L1 super woofer system, for single channel full range speaker and super woofer.
These electronic control units provide the channel divider to divide respective frequency range between
the speaker units, and can realize smooth phase characteristics in the speaker system, by according with
the phase in crossover frequency while correcting time lag for the divided frequency range each other
between the speaker units.
In high frequency range in combination with the compression driver and the constant directivity (CD) horn,
the horn equalizer employs to provide smooth phase and amplitude characteristics.
To moderate the frequency response (3~4kHz) susceptible to saturation to listener's ears at the highest
sound pressure, dynamic equalizer is provided to control such frequency response.
Limiter is provided to prevent the speaker units from over-driven and damage in respective frequency
range and not to arise power amplifier clipping.
When suspending the SR-F1 to the ceiling, crossover select switch is provided to sharply cut off the
crossover frequency between the super woofer and the woofer.
Quality sound is realized by use of selected electronic parts as OP amplifier, condensers etc.
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