KV2 Audio EX10, User Manual

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Amplifiers and Acoustic Filters
The EX15 is powered by two separate power amplifiers specifically designed and optimized for the low frequency
and high frequency drivers. The control system in the EX15 processes the audio signal through a series of electronic
filters and circuits providing equalization, crossover filters, phase adjustment, thermal and overdrive protection.
The EX15 employs a protection system based on rms limiting of the amplifiers. This type of protection strategy allows
the speaker to operate safely under overload conditions. When the rms "limiter" engages, the output level
of both amplifiers is reduced to a safe operating level. This type of protection allows the phase response of the system
to remain unchanged as the level is lowered. By not compressing or limiting peak signal, dynamics also remain
unchanged. The control objective is to regulate the operating temperature of the transducers magnetic circuits log
term. This ensures no impact on performance due to power compression and allows the components to retain their
ability to reproduce high dynamics.
LED Status Lights
The EX10 control panel uses two distinct LED's to provide operating status information.
Power On / Limiter LED
This LED turns green when the speaker is turned ON. The light will continue to be green during normal operation
of the speaker system. Should the rms limiting system be engaged due to overdriving of the EX15, the LED will change
color from green to yellow. The audible effect of the rms limiter is a lowering of overall output level. The rms limiter will
disengage only if the input level is turned down..
Signal / Thermal LED
This LED turns green when there is audio signal present in the EX15. This signal indicator can be used to troubleshoot
wiring problems. The LED will change from green to yellow under a thermal condition resulting from overheating
of the amplifier system. Under this condition, the speaker system will shut down. You can expect for the system to be
down for at least 2-3 minutes depending the ambient temperature and whether the system is being exposed to direct
sun light.
The EX15 features a finless heatsink that allows it to operate in any position. There is also an internal fan
located inside the amplifier module. The fan speed is dependent on two factors; the temperature of the heat
sink and the output level of the speaker. As temperature increases, so does fan speed. As audio level increases,
fan speed also increases as a preventative measure designed to keep the heat sink temperature low. Under
normal operating conditions, the fan noise remains inaudible. Please contact KV2 Audio or a local service
representative should the system enter a thermal condition under normal operating conditions.
EX15 · Audio Signal
EX15 · A
udio Signal
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