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Channels
Overdrive
The Duotone®'s Overdrive Channel redefines what is typically known as
the "British" sound - it makes the tone thicker, throatier, more articulate,
with greater dynamic range. The Duotone®'s response to even the most
subtle changes in attack is phenomenal. Note how your touch precisely
controls the level of saturation and compression.
Clean
Clear yet punchy, airy but focused, the Duotone® Clean Channel delivers
everything from pristine Clean to - depending on the type of guitar
and pickup - remarkably responsive sweet blues sting, thus perfectly
complementing the Overdrive Channel's tonal spectrum.
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Jacks and control features
Input (Front Panel)
Plug your guitar into this jack (it accepts all standard guitar Input levels).
Clean Volume (Front Panel)
Determines the Clean Channel's volume. Depending on the output of the
pickups in your instrument, you'll also be able to dial in wooly blues tone
and slightly Overdriven crunch sounds.
EQ Section (Front Panel)
Bass, Mid and Treble knobs for the Clean Channel. Mid and Treble
influence one another, an attribute considered normal and desirable in a
tube amp. Boosting treble decreases midrange honk and vice versa: jacking
up the mids cuts back on the shimmer. You'll find that this feature offers a
fairly staggering range of subtle tonal variations.
Channel Select (Front Panel)
This Channel selector switches back and forth between the Clean and
Overdrive Channels.
Boost (Front Panel)
Hit this button to increase Input sensitivity and pump up the mids for fat,
singing lead tone and a fairly bone-crunching, classic heavy rock sound.
Overdrive Gain (Front Panel)
Controls the Input sensitivity and thus the amount of distortion in the
Overdrive Channel.
Duotone Head
Overdrive Master (Front Panel)
Determines the Overdrive Channel's volume. Adjust this to achieve the
desired balance of levels between the Overdrive and Clean Channels.
Overdrive EQ Section (Front Panel)
Bass, Mid and Treble knobs for the Overdrive Channel. AGain, Mid and
Treble influence one another.
FX Level (Front Panel)
Controls the level of the effect signal. In contrast to a conventional FX
MIX knob, here the signal coming from any connected effect device
is simply added to the original signal (like the AUX send on a mixing
console), leaving the original signal intact at every setting.
Presence (Front Panel)
This knob controls a Power amp circuit that determines the amount of
upper mids and highs in the signal.
Master 1 and Master 2 (Front Panel)
These knobs are used to dial in two basic overall levels, which may then be
activated via Footswitch.
Power (Front Panel)
The Duotone®'s mains Power switch.
Standby (Front Panel)
Be sure to wait one to two minutes after turning on the Power switch
before you flip this switch. It assures that the tubes warm up gradually
when you first Power up the Duotone® and mutes the amp during breaks.
In the latter case, the tubes stay warm at a reduced level so that they don't
have to heated up from a cold start aGain when you're ready to get back
to playing.
Red Mains LED (Front Panel)
The red LED illuminates when the Duotone® is Powered up.
Mains In (Rear Panel)
Connect the factory-included Euro-norm mains cable to this socket.
Ensure the amp's voltage rating matches your local AC voltage rating
before you plug into the wall socket. The mains fuse bracket is located
next to this socket. When replacing blown fuses, make sure you use
specified replacement fuses only (see TECHNICAL SPECIFICATIONS
p. 26).
Anode Fuse (Rear Panel)
This is the holder for the Power tubes' Anode Fuses. Here too, make sure
you use specified replacement fuses only when replacing blown fuses. If a
replacement fuse blows after just a short while in operation, you should
definitely have the Power tubes checked for defects.
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