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Dear Randall Owner,

Congratulations on the purchase of your new Randall Amplifier,  and thank you for the support of
our product line.  Randall amps are made to strict quality and consistent performance standards,
that will provide you with years of musical satisfaction.  Please read the following manual, before
operating your new MIDI channel switching tube power amplifier.  The innovation of the MIDI
switching RT2/50, will take tube versatility to new heights, and your  journey begins today.  if you
ever have any questions or comments, please contact us anytime.

Enjoy your new purchase!

Warnings:

-Do not block any ventilation openings on the sides or rear of the preamp.  Always give four inches of proper  venti-
lation to the rear of the preamp. 
-Do not expose the amplifier to rain, moisture, dripping or splashing water.  Do not place objects filled with liquids
on or nearby the amplifier.  
-Do not expose the amplifier to direct sunlight or extremely high temperatures.  Always unplug the AC power cord
before changing fuses or tubes.  When replacing fuses, use only the same type and rating.

-Be sure to connect to an AC power supply that meets the power supply that meets the power supply specification,

listed on the rear fuse holder.

-If there is any danger of lightning occurring nearby, remove the power plug from the wall socket in advance.

-Do not use excessive force in handling control buttons, switches and controls. Do not use solvents to clean the

unit, wipe off the exterior with soft cloth.

Summary of Contents for RT50H

Page 1: ...A M P L I F I E R S RT2 50 MIDI SWITCHING TUBE POWER AMPLIFIER O W N E R S M A N U A L...

Page 2: ...s or rear of the preamp Always give four inches of proper venti lation to the rear of the preamp Do not expose the amplifier to rain moisture dripping or splashing water Do not place objects filled wi...

Page 3: ...tlet unless the blades can be fully inserted to prevent blade exposure WARNINGS AND SYMBOLS LIGHTNING FLASH The lightning flash with an arrowhead within an equalateral triangle is intended to alert th...

Page 4: ...each channel This knob boosts the amount of overall hi end and sparkle in your tone This is an additional hi end EQ control that should be set to your desired liking Tube Bias Section Very cool specia...

Page 5: ...he channel switching mode you must use channel 1 input first In Switching mode Channel 1 inputs controls Channel 1 and 2 outputs When using Stereo mode you can use Channel 1 and Channel 2 inputs 5 Swi...

Page 6: ...de screwdriver to turn the adjustment control 1 The amp should be on standby in the PLAY position and all knobs all the way down 2 Turn the meter on and set for reading DC millivolts Consult the meter...

Page 7: ...g the pair Remember your amp will only perform as well as your weakest tube Special Note You should always carry a spare pair of power tubes fuses screwdriver and your voltmeter with you If a tube fai...

Page 8: ...rtain power tubes 3 Once you have the selected the preamp channel select which RT2 50 channel you want to program to this particular preamp channel 4 After you have selected the preamp channel and RT2...

Page 9: ...nnel 1 4 Press hold the Channel button on the RM4 for 2 3 seconds 5 Push 2 button on the foot controller 6 Set to Channel 2 on the RM4 preamp Both the foot controller and the RM4 should be on Channel...

Page 10: ......

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