Randall RB300 Instruction Manual

Randall RB300 Instruction Manual

Valve dynamic bass amplification

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Summary of Contents for Randall RB300

  • Page 3: Table Of Contents

    Table of Contents FRONT PANEL FEATURES: Input/dB Cut Overdrive Controls Compressor/Pre Gain controls EQ Controls Valve-Dynamic EQ Controls Phones Jack Power Switch REAR PANEL FEATURES: AC Power Input Speaker Outputs Footswitch Input Direct Output/Level Control Effects Loop Tuner Output Troubleshooting Specifications Warranty...
  • Page 4: Input/Db Cut

    RB SERIES FRONT PANEL FEATURES INPUT/-10dB CUT: The main guitar INPUT for the amplifier. Using a high quality instrument cable, simply connect your guitar to this 1/4” input jack. The -10dB switch can be used with basses that use an on-board preamp with active tone controls.
  • Page 5: Eq Controls

    RB SERIES FRONT PANEL FEATURES - cont. BASS CONTROL: A passive low end control that adjusts the sub low frequencies of the preamp circuit. Set flat to start and adjust to find the desired amount of low end. MIDDLE CONTROL: A passive mid-range control that adjusts all mid-range frequencies of the preamp circuit.
  • Page 6: Valve-Dynamic Eq Controls

    RB SERIES FRONT PANEL FEATURES - cont. VALVE-DYNAMIC BOTTOM/DENSITY CONTROLS This is the very unique section of the RB Series bass amplifiers. Each RB Series amp includes an active Bottom and Density control which EQ’s the power section for more low end tube warmth and high end shine.
  • Page 7: Ac Power Input

    RB SERIES REAR PANEL FEATURES Fuse AC INLET: Each unit includes an AC power cord for the country that you live in. Attach the included AC power cord from this AC inlet to a standard wall outlet or preferred power conditioner. Once plugged in, the unit is ready for power up.
  • Page 8: Direct Output/Level Control

    RB SERIES REAR PANEL FEATURES Fuse DIRECT OUTPUT: A preamp output that allows you to send a balanced signal using an XLR cable to either a house mixing console for live stage use, or to a studio recording console. This section includes a Pre/Post loop option if you are using the Effect loop.
  • Page 9: Troubleshooting Guide

    AC Inlet on the rear panel. Remove the fuse from the fuse holder and replace the fuse using the same size and value of the existing fuse. If the amp still will not power up, contact your local Randall Dealer or Service Center.
  • Page 10 Register your Warranty on-line at www.randallamplifiers.com/about/warranty/randallreg.asp WWW.RANDALLAMPLIFIERS.COM Randall Amplifiers is a Division of U.S. Music Corp 444 East Courtland Street. Mundelein, Illinois USA 60060 E-mail: info@randallamplifiers.com Phone: 847-949-0444 Fax: 847-949-8444...

This manual is also suitable for:

Rb500Rb750

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