QFlex - Brochure

All this is done is such as way that the product will continue to operate in as normal a way as possible, and will intelligently
reduce stress progressively, or temporarily shut down parts of the system, returning to normal operation automatically
wherever this is possible. Only as a last resort will the product enter any kind of permanent shut-down mode which will
require intervention. Even then, QFlex will alert staff (via a ashing indicator and a relay contact connected to optional
external monitoring systems) to the presence of a problem which requires attention.
Protection and monitoring
The last thing any of us want is for a QFlex loudspeaker to fail. To achieve longevity of operation in harsh or abusive
situations requires an intelligent monitoring and protection system which prevents any of the system components from
becoming stressed. The protection systems in QFlex:
Make sure that the output current of the
ampliers is within safe limits so that the
power supply and power ampliers are not
stressed
Make sure that the temperature of the
product does not become elevated above
that which is safe for reliable operation of all
the components
Make sure that the mains supply voltage
is within a range which will allow normal
operation, and suspend such operation if the
mains voltage should fall outside this range,
restoring normal operation when the voltage
returns to normal
Make sure that the voltage delivered to the
drivers is within a range which the drivers can
handle
Limit the power applied to the drivers such
that the temperature of the drivers is within
safe limits, whilst maximising the SPL which
QFlex will normally permit