Owner's manual

Although operation of the Velocity 300 is simple once the proper connections have been made,

attention to the following precautions is essential to protect your equipment against failure and ensure

the long life of your Velocity® amplier.

Power Output/Speaker Load

The Velocity 300 is capable of producing the following power output levels into each of these loads:

Unbridged (Stereo)

4 ohm load 150 watts

8 ohm load 75 watts

16 ohm load 37.5 watts (with both channels driven)

Bridged (Mono)

4 ohm load Not Recommended*

8 ohm load 300 watts

16 ohm load 170 watts

! Always be certain to use speaker cables to connect cabinets.

! Always be certain to use speakers or speaker cabinets capable

of withstanding the power provided in the above mentioned

applications. Rocktron is not responsible for speaker failure

resulting from use of this equipment.

! Never connect 2 outputs of the amplier to the same speaker. This

would be equivalent to shorting the outputs of the amplier together

and would shut the unit down immediately.

4. Operating Precautions

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 amplier will cause amplier failure and severely damage

internal components. The Automatic Short Detection circuit in the Velocity 300 will automatically detect

any shorts which may inadvertently occur across the amplier’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 amplier outputs are properly connected. When the power is turned on again with the

proper connections, the amplier will operate normally. It is important to note that two outputs from

the amplier 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 rst contact our Customer Support Department at the phone number shown on the

back cover of this manual before taking the unit to a dealer or repair shop for servicing.

5. Automatic Short Detection

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 Denition 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 amplier, the Denition control can be adjusted

so that the guitar becomes more audible when playing with a band. Turning the Denition control fully

counterclockwise bypasses the denition circuit, while turning it fully clockwise provides maximum

denition.

6. Denition Controls