Automatic Short Detection; Definition Controls - Rocktron Velocity 300 Instruction Manual

6. Automatic Short Detection

A feature truly unique to the Velocity line of power amps is Automatic Short Detection circuitry.
Typically, shorting the outputs of a high output power amplifier will cause amplifier failure and
severely damage internal components. The Automatic Short Detection circuit in the Velocity 250
will automatically detect any shorts which may inadvertently occur across the amplifier's outputs
and immediately shut down the unit to protect it against internal damage.
Should this condition occur, switch the unit off for approximately 10 seconds and make sure that the
cords from the amplifier outputs are properly connected. When the power is turned on again with
the proper connections, the amplifier will operate normally. It is important to note that two outputs
from the amplifier should never be connected to the same speaker, as this would be equivalent to
shorting the outputs together and will cause the unit to shut down.
In the unlikely event that the proper connections have been made and the unit still shuts down,
we strongly recommend that you first contact our Customer Support Department at the phone or
fax number shown on the back cover of this manual before taking the unit to a dealer or repair
shop for servicing.
7. Definition Controls
When playing with other musicians, it often becomes a problem that the guitar can get "buried"
under the other instruments and cannot be distinguished easily. The front panel Definition control
gives the effect of bringing the guitar out of the cabinet so that it can be heard despite the other
instruments. Although it does not actually effect the volume of the amplifier, the Definition control
can be adjusted so that the guitar becomes more audible when playing with a band. Turning the
Definition control fully counterclockwise bypasses the definition circuit, while turning it fully
clockwise provides maximum definition.
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