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unacceptable overdrive in the system, reduce the input signal level or damage to the drivers is
likely to occur.
CAUTION:
Electronic limiters cannot provide absolute protection against driver failure. Thus, if
limiting is occurring, it is a warning that excessive signal levels are being approached. It is NOT an
indication that the loudspeaker is successfully protecting itself.
Operating Limits
While the processing for Redline series products includes robust driver and amplifier protection
algorithms and circuits, it is ultimately the responsibility of the audio system operator to operate
the loudspeakers within their capabilities. This is the only way to ensure that loudspeakers are not
stressed beyond their limits to the point of damage or failure. Operation beyond their capabilities
usually includes, but is not limited to, one or more of the following conditions:
Severe amplifier clipping
Noticeable distortion
Mechanical noise (such as cones bottoming out)
The Redline products
have both Limiter and signal indicators. It is recommended that the operator
have a meter display calibrated to indicate the level where the Limiting and Clipping point are and
thus be near to exceeding their capabilities
Adjusting the Output Level
Starting with the input level attenuator at
-∞
(all the way to the left), turn the input attenuator
up until the desired volume is reached, but below the point where the CLIP and/or LIMITER ACTIVE
lights illuminate.
CAUTION:
If there is no sound, turn down the signal source's output level before investigating
the problem. Do this to avoid excessive and possibly damaging sound levels from the loudspeaker.
CAUTION:
Excessive clipping and limiting of the input signal should be avoided as it could result
in damage to loudspeaker transducers.
LED Dim
For aesthetically sensitive situations where the LED indicators of the rear of Redline may be
distracting, the LED light level can be reduced. To dim the LEDs, hold the ‘Mode’ button for 2
seconds. To restore the maximum LED brightness, repeat the same process, by holding down the
‘Mode’ button for two seconds. Note that for approximately one second after dimming or
restoring the rear-panel LEDs, the voicing mode cannot be changed. This occurs because the LED
state is being stored to non-volatile memory in order to persist through a power-cycle. This
function has no effect on audio output.
