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MASTER:
This control is the master feed from the end of the pre-amp to the driver stage and the Effects Loop. As you can see
each Channel is fitted with its own MASTER control, enabling the four channels relative volumes to be matched regardless of their
extremely different sound styles and gain signatures. The MASTER control makes possible
a wide range of sounds through its ability to use very low Gain sounds at high volumes
and conversely, high Gain sounds at low volumes and everywhere between.
Again, we suggest using the MASTER control in its sensible ranges ( 9:00 - 2:00 ). Here,
the channels will be easier to match with each other and the Effects Loop will see more
reasonable signal levels.
NOTE: Because the MASTER control creates the send to the Effects Loop, extreme
settings will cause a large signal to be sent to the Loop for that Channel. Not only may this
cause possible overloading of the processors Input stage, but will make balancing the four
channels’ Effect Send level difficult.
OUTPUT CONTROL:
This is the overall OUTPUT LEVEL control for the entire amplifier. It is located at the input to the power sec-
tion and allows you to raise adjust the playing level once you have used the individual CHANNEL MASTER controls to balance the
level of the four Channels. The OUTPUT receives its signal from the EFFECTS RETURN jack and
therefore this control is only in the signal path and active when the EFFECTS LOOP is set to LOOP
SYSTEM ACTIVE. When in LOOP BYPASS the individual CHANNEL MASTER controls are the final
output level controls.
NOTE: USING THE ROADSTER AS A POWER AMP ONLY
It is possible to use the Roadster’s power section as a stand alone power amp for use with external preamps, as half of a stereo
power rig or, as a slave for another Roadster in larger venues. Here’s how;
1.) Connect your preamp signal to the EFFECTS RETURN jack.
2.) Select LOOP ACTIVE on the Rear Panel
3.) Use the OUTPUT control as your power amp level control.
4.) Adjust the PRESENCE control of the Channel you are using to taste.
5.) Select a Channel and a power setting in that Channel.
We recommend not using the MODERN mode of CHANNELS 3 & 4 for this application as the increased power sensitivity of this
mode due to the removal of negative feedback in the power section creates an extremely hard to manage power amp. If you wish to
use all four Channels when using the EFFECTS LOOP RETURN as a POWER IN jack we suggest using CHANNELS 1 & 2 in the
CLEAN mode and CHANNEL 3 & 4 in the RAW mode. This will provide uniform input sensitivity and the only volume difference you
will experience are those caused by the output power of the different tube settings (50 or 100 watts).
OUTPUT
SOLO
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