User manual ROCKTRON MODELG612

[. . . ] 1 Front Panel . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2 Rear Panel . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3 Connections . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4 Stereo Applications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . [. . . ] 4 Mono Bridged Applications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5 Operating Precautions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6 Power Output/Speaker Load . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6 Fuse Replacement . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7 Unique Features . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8 Automatic Short Detection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8 Definition Control. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8 Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9 Introduction Congratulations on your purchase of the Velocity® 120 guitar power amplifier!Designed to provide maximum reliability under even the most extreme conditions, the single-rack space Velocity® 120 provides 60 watts per channel stereo or 120 watts mono-bridged when driving an 8 ohm load. The 120 incorporates an automatic short-detection circuit which, if a short should occur, will automatically shut the unit down before any damage can be done to any of its internal components. 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 the operable output jacks when using the Velocity® 120 in "bridged" mode. This standard ¼" jack provides an input to Channel 1 from the output of your preamp or the last device in your effects chain. This jack is used as the input jack when operating the Velocity® 120 in "bridged" mode. This module provides a connection for the power cord and also houses the main fuse of the unit. (For information about changing the fuse, see page 7). 4 OUTPUT jacks (Ch. 1) 6 POWER INLET module 3 Connections Stereo Applications 4 Mono Bridged Applications 5 Operating Precautions Although operation of the Velocity® 120 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® amplifer. Power Output/Speaker Load The Velocity® 120 is capable of producing the following power output levels into each of these loads: Due to the efficiency of the Velocity® 120 design, there is not a large variance in output level when comparing various impedance loads. Unbridged (Stereo) (with both channels driven) Bridged (Mono) 4 load* (Not Recommended) 8 load 120 watts 16 load 95 watts 4 load 8 load 16 load 60 watts 50 watts 30 watts * Note: Rocktron does not recommend using the Velocity 120 in bridged mode when connected to a load of less than 8 ohms. However, using the Velocity 120 in bridged mode with an 8 ohm load produces the same output level (120 watts) as would be achieved with a 4 ohm load - therefore using a 4 ohm load would provide no additional benefits. !! 6 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 amplifier to the same speaker. This would be equivalent to shorting the outputs of the amplifier together and would shut the unit down immediately. Fuse Replacement Always replace the main fuse with an identically rated replacement. [. . . ] This would be equivalent to shorting the outputs of the amplifier together and would shut the unit down immediately. Fuse Replacement Always replace the main fuse with an identically rated replacement. Your Velocity® 120 amplifier uses a 5x20mm, 4 amp, 250V slow-blow fuse. The fuse is located immediately below the line cord inlet on the rear panel and can be accessed by removing the fuse cover module as shown below. Use a small flat screwdriver as shown to slide the fuse cover out from the power inlet module. The fuse can be found inside the fuse cover module after it is pulled out. G Note: A small compartment is also provided within the fuse cover module for storing a spare fuse. After replacing the fuse with another of identical specifications, push the fuse cover module fully back into place, ensuring that the fuse has snapped onto the fuse holder inside the power inlet module. 7 Unique Features Automatic Short Detection A feature truly unique to the Velocity® 120 is its Automatic Short Detection circuit. [. . . ]