FRONT PANEL
Input
Plug your guitar in here!
Gain
This adjusts the input sensitivity. Use low settings for maximum clean headroom and higher settings
when you want to introduce more natural valve overdrive to your tone.
Balancing your input Gain level with your Master volume level is crucial in delivering the tone and feel
that works best for you. In addition, careful use of the volume control on the guitar will also provide
tonal variations to the sound.
Bright switch
For switching between two pre-set levels of treble response.
Contour
Controls the bass and midrange frequency response simultaneously: turning clockwise increases bass
and decreases midrange response and anti-clockwise, it does the opposite.
Deep switch
Increases low frequency response of the power amp section and can be used in conjunction with the
Contour control for a sound with extended midrange and low frequency response simultaneously.
Master
The Master Volume control is used to set the stage or overall volume of the RD1. If this is turned to
maximum, then the RD1 becomes a non-master volume amplifier where the Input Gain control in
conjunction with the Volume control on the guitar allows for a wide range of Volumes & Gains to be
achieved. This can be very powerful for tone shaping.
Power switch
HIGH – STANDBY – LOW Switch
The RD1 should always be switched on, (Power switch on front of amplifier), with this front panel toggle
switch in its centre position. The amplifier is now in ‘STANDBY’ mode with just the valve heaters and low
voltages on. This allows the valves to heat up before they get 100s of volts up them, (it’s less of a shock).
After around 60 seconds, the amp can be switch to either HIGH, (around 28 Watts rms) or LOW, (around
2 Watts rms). When switching the amplifier ON or OFF please ensure the Volumes are turned down and
you leave at least 30 seconds before switching from Standby to Off. This will ensure extended valve life
and avoid any power-down noise. This is especially relevant if you’re miked up and running through a
large PA system as any small pop may become amplified to audience death levels, which may limit your
music career.
