User manual ROCKTRON V120

[. . . ] It is also recommended that a vacant space is left above the power amp, if possible, to further improve ventilation. OPERATING TEMPERATURE Do not expose this unit to excessively warm or cold temperatures. This unit is designed to operate between 32°F and 104°F (0°C and 40°C). This unit may not function properly under extreme conditions. The lightning flash with arrowhead symbol, appearing on the rear panel of the unit, is intended to alert the user of this product of the presence of uninsulated, dangerous voltage which may be of sufficient magnitude to constitute a risk of electric shock. CAUTION RISK OF ELECTRIC SHOCK DO NOT OPEN The exclamation point symbol, which appears on the rear panel of the unit, is intended to alert the user of this product to the presence of important operating and maintenance instructions in the accompanying literature. CAUTION: TO REDUCE THE RISK OF ELECTRIC SHOCK, DO NOT REMOVE COVER (OR BACK) NO USER-SERVICABLE PARTS INSIDE REFER SERVICING TO QUALIFIED SERVICE PERSONNEL Copyright ©1994 Rocktron Corporation. [. . . ] This control adjusts a specific pre-defined frequency range which will allow the guitar to be better distinguished from other instruments when playing with a band. This User's Manual details various applications and functions for the Velocity® 120. After reading it, please keep it for future reference. 1 Front Panel 1 POWER switch 2 POWER led 3 LEVEL control 4 DEFINITION control This switch powers up the Velocity ® 120. When lit, this LED indicates that the Velocity® 120 is powered and ready for operation. This control determines the output level for Channel 1. This control determines the level of definition for Channel 1. Turning this control fully counter-clockwise bypasses the Definition circuit, while turning it fully clockwise provides maximum Definition. This control determines the output level for Channel 2. This control determines the mid frequency content for Channel 2. Turning this control fully counter-clockwise bypasses the Definition circuit, while turning it fully clockwise provides maximum Definition. 5 LEVEL control 6 DEFINITION control 2 Rear Panel 1 OUTPUT jacks (Ch. 2) These standard ¼" jacks provide outputs for Channel 2 to speaker cabinets. Do not connect these outputs to a load of less than 4 ohms (or less than 8 ohms in mono-bridged mode). These jacks are inoperable when using the Velocity® 120 in "bridged" mode (i. e MONO BRIDGE switch "in"). This standard ¼" jack provides an input to Channel 2 from the output of your preamp or the last device in your effects chain. This jack is inoperable when using the Velocity® 120 in "bridged" mode (i. e MONO BRIDGE switch "in"). 2 INPUT jack (Ch. 2) 3 BRIDGED MODE selector switch When pressed "IN" the Velocity® 120 operates as a mono unit with increased output power (Channel 2 becomes inoperable in this condition). [. . . ] circuit in the Velocity® 120 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. [. . . ]