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RedPlate CDS3 Operations Guide
The Tweed Preamp is based on the classic Tweed Style design with two important differences:
1. Gets into the "sweet spot" at various volume levels for consistency of tone and character in both small and
large venue sizes.
2. Can also imitate the soft breakup and rounded midrange of the Brownface era amplifiers.
Level – This control sets the overall volume of the Tweed channel, its function is shared with the overdrive section.
Tweed –This control sets the "sweet spot" – adjust this for the amount of break up character you desire in your tone.
Typical setting is between 5 and 8 but experimentation is encouraged. Pulls to enable the Tweed channel (handy
when you don't have the footswitch connected) Enabling the Tweed Channel from the panel disables the overdrive.
Tone – Treble is emphasized at settings past 5, more bass at the lower numbers. When pulled it shifts the preamp
into Brown mode. This tone control is lifted for a treble/volume increase when the Boost Button is pressed on the
footswitch (see the Other Features section of this manual for details).
Master Volume – This is an active control and actually adds gain at the higher settings. The cleanest tones
are achieved at settings below 7.
Presence Control – The presence circuit uses global negative feedback to remove low frequencies which frees
up bandwidth for more midrange and highs. Think of it as a tone control to balance the relationship between
highs and lows, especially when the amplifier is naturally producing increased low end at louder volumes.
The control clicks off when rotated to zero for no presence.
TWEED SECTION
MASTER SECTION
Page 3 © RedPlateAmps 2012
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