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RedPlate RP50R Operations Guide 

 

 

TWEED PREAMP SECTION 

 

Tweed Volume & Tone

 

The first 2 controls make up the Tweed Preamp section which is designed to produce the 

classic Tweed tone. 

Volume 

– This control sets the break up point and volume level of the Tweed channel. 

 

Tone

 

– Treble is emphasized at settings past 5, more bass at the lower numbers. When pulled 

it reduces girth for the Brownface era tone. The Brownface setting can be switched back to Tweed 
from the footswitch via the MID button. The tone control can be bypassed for a girth/volume jump 
by pressing the Boost button on the footswitch (see the 

Other Features

 section of this manual). 

BLACKFACE PREAMP SECTION 

                                        Volume Treble Middle Bass Mode

 

Volume

 

– Volume level for the Blackface preamp

. Pulls to enable the channel when the 

footswitch is not connected (see the 

Other Features

 Section of this manual).

 

Treble Control

 - 

Adjusts highs (also upper midrange when the Mid Boost is engaged). 

Middle Control

 

– 

Controls the amount of Midrange frequencies, somewhat interactive with 

the Bass Control. Pulls to enable “Deep” which scoops some midrange frequencies and 
emphasizes Bass (makes your electric sound more like an acoustic).

  

Bass Control

 

– Sets the amount of low end. Can be rotated to zero where it clicks off for a full 

tone stack lift. 

Mode Selector

 

– A six position rotary switch, it steps through 5 progressively fatter positions of 

the midrange center frequency and adds a stack lift of the Middle control for even more midrange in 
position 6. 

DRIVE SECTION 

 

                                                                     Gain Drive Level

 

The Drive section controls the amount of character to add to the preamp 

tone. The section’s 

range of effect can be just a hint of early break up or a full on aggressive heavy metal distortion. 

 

Gain Control

 

– Bypasses the section when rotated to zero, this control sets the amount of 

signal for the first gain stage of the section. Low settings are smoother and higher settings are 
more aggressive. 

 

Drive Control

 

– Sets the amount of distortion by controlling the level between the 2 gain 

stages of the section. Pull this control to shift into more gain and girth for the distortion (SHIFT). 

 

Level Control

 

– Sets the output volume of the section. Higher settings are “bigger” and more 3 

dimensional. Pull this control for a reduction of extreme highs (HI CUT feature). 

Содержание RP50R

Страница 1: ... of all the available features or just put all the knobs at noon and play This Manual applies to RP50R models produced after 02 01 2014 Signal Path Block Diagram RP50R FRONT PANEL Input Jack Typical High impedance input to the amplifier Designed to be Pedal Friendly in the unlikely event you will ever use a pedal in front of the RP50R Bright Switch Center OFF Down sound of new strings Up normal Br...

Страница 2: ...rol Pulls to enable Deep which scoops some midrange frequencies and emphasizes Bass makes your electric sound more like an acoustic Bass Control Sets the amount of low end Can be rotated to zero where it clicks off for a full tone stack lift Mode Selector A six position rotary switch it steps through 5 progressively fatter positions of the midrange center frequency and adds a stack lift of the Mid...

Страница 3: ... 5 amps is fine for Export use 220 240 VAC The fuse drawer can be rotated on the export models for voltage selection make sure the correct value fuse is located on the same side of the fuse drawer as the desired selection arrow Line up the appropriate arrow on the fuse drawer with the arrow on the bottom right of the module for the proper VAC selection Standby Switch This switch allows the tubes t...

Страница 4: ...switch cable The cable used is a regular MIDI cable and is readily available in any length at most music stores TWEED When engaged lit the guitar input is routed to the Tweed channel The footswitch button does not work when the Blackface Channel s volume control is pulled because it overrides the footswitch DRIVE Character Boost feature When lit the Drive section of the amplifier is active not lit...

Страница 5: ...peration The vacuum tubes will need to be replaced over time We recommend new output tubes every 160 240 hours and new preamp tubes every 320 480 hours The front and rear control panels have a protective finish that can be easily scratched with abrasives so always use a damp soft cloth to clean them never use paper towels The cabinetry can be cleaned with our super secret tolex cleaner on a paper ...

Страница 6: ...blade screwdriver to adjust the bias pot for a reading of 72MV 5 MV FYI the plate voltage is 470 volts The reading is the sum of the idle current for both tubes 8 Recheck the reading after 10 minutes of operation and again after a week or two of operation RedPlateAmps Warranty At RedPlateAmps we pride ourselves making products that are built to last The workmanship in your RedPlate amplifier is wa...

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