Duende USER MANUAL
Please read safety instructions before you use this
versatile 6V6 design with inspiring features:
two channel All- Tube design. Channels can be COMBINED
or used separately via footswitch, or manually at the
back of the amp
- Ch. a : Gain
(Pull Bright), Treble, Bass and Volume plus shared
Master EQ controls
- Ch. b : Gain,
Volume (Pull Bright) plus shared Master EQ controls
- Master EQ Section
: Air (Post EQ Treble) and Body (Post EQ Bass) controls,
these are shared between both channels
- Tube Reverb with
long Accutronics tank with independent level controls
for each channel
series FX- Loop
Photo-Cell based Tremolo with Speed and Depth (Pull On)
- Power Amp Line
Out with high cut filter
- Power Amp Filter
Switch: Mordern (Tight) and Swamp (Loose)
- 5AR4 or 5Y3 Tube
- 12-15 Watt 6V6
Power Amp Section
- Functions on
footswitch: channel switch, channel combine and tremolo
- Available as Head
or Open 1x12 Combo
WEIGHTS: Are subject to change anytime, Please measure
your amp carefully if a Custom Case is being
made. All measurements include handle and rubber feet.
Head: 11 1/2" H x 24
1/2" W x 10 1/2" D 30pounds
1x12 Combo: 23" H x 24 1/2" W x 10 1/2" D 42pounds
to use it:
Read this owners
manual completely before use to fully understand your
a) Master EQ
The "air" control acts
as overall treble and the "body" as overall bass control.
These are shared by both channels. Set both of them to 12
o'clock as a starting point.
Both channels have a
bright function which is engaged by pulling the "gain a" for
channel a, the "volume b" for channel b.
c) Effects Loop
This is a none bypass
able tube buffered series effects loop between pre- and
power amp. The "send" connects to your effects input and the
"return" to your effects output. This loop is designed to
work with instrument level pedals. Line level effect units
that feature in- and output level or at least one of those
controls should work just fine as well.
The reverb is not
bypass able. Each channel has its own control but if booth
channels are engaged at the same time without the footswitch
connected, "reverb a" control is the only one working. If
the footswitch is connected, the reverb control working when
both channels are engaged depends on how the channel select
, a v b right side, is set. If set to a , reverb a - , if
set to b, reverb b control is working.
e) Power Amp Filter
This switch gives you
the choice of different filtering settings for the power
amp. Set to "modern" gives you a tighter more focused sound.
The "swamp" position is looser and has more sag (there is a
slight hum in this mode due to the weak filtering)
Your amp comes with a
3 button footswitch.One button is for switching between the
two channels (a v b, right side), one for engageing both
channels at the same time
(a + b, left side) and one for the tremolo ( center). The
footswitch jacks are located on the back panel. The top one
is labled"trem/rev", the bottom one "ch select". The stereo
(ring,ring, tip) 1/4" plug goes in the "ch/select" jack. The
mono 1/4" plug (ring,tip) goes into the "trem/rev" jack. If
you don't know the difference between mono and stereo plugs
look at them and you will notice the difference
(Mono=tip,ring and Stereo=tip,ring,ring). The 3-position
rotary switch on the back panel is only active when the
footswitch is not plugged in. This rotary switch allows you
to activate either: Position 1 = channel a or position 2 =
channel b or position 3= channel a+b. The tremolo can also
be engaged without the footswitch plugged in by pulling the
"depth" control. Please note, the tremolo needs to be turned
off on the amp when the footswitch is used, otherwise it is
always on and can not be turned off viathe footswitch.
Your Duende comes with
a 5AR4 (15W) or 5Y3 (12W) rectifier tube ( V8 ) and a pair
of Tesla or other brand 6V6 ( V6 and V7 ) poweramp tubes
depending on availability.
Five 12AX7A tubes are used in the pre amp, see tube chart
for individual functions.
Note: If you want to
experiment with different tubes the first 3 tubes are the
most noticeable ones, soundwise. The less gain the tube has
and the earlier the tube is in the sound chain (V1, V2,..)
the less noisy your amp is.
Make sure you turn
your amp off when you switch tubes and be careful, the tubes
might be very hot!! Do not touch tube sockets with fingers?
Even after turning your amp off and unplugging it from the
power outlet there could be enough voltage stored in the
capacitors to give you a lethal electrical shock.
The 1x12" combos are
loaded with a 8 ohm Celestion G12H30 speaker.
Subject to change,
depending on availability on Speakers.
To check the fuses,
use an Ohmmeter to make sure they're blown because sometimes
you can't see if they are. The Duende has two main fuses,
type: 5x20mm slow blow, both of them need to be good in
order for the amp to work. They are located between the
power cable connector and the power switch. To release the
fuse holder you need to push the top and bottom latch with
your finger nails towards each other and pull the insert
out. If you can't get it out this way, use a little screw
driver and pull first one, then the other latch, the insert
snaps out and you be able to pull it out. For 100-120 volt
models a 1.5A fuse should be used (3A for 220-240 volt). The
HT fuse is a "3AG Slow Blow" screw-cap type and should be
1/4 A on all models. The HT fuse blows usually if your power
amp tubes are bad to protect the circuit from getting
damaged. If the Main fuse blows it could be just a voltage
peak from your power outlet. Put a new one in and see what
happens. If it blows again give us a call.
Radio Shack carries both type of fuses..
Make sure your read
and understand the safety instructions!! Repairs should be
done only by knowledgeable Technicians!! Always make sure
your Cables, Guitars, Effects and Extension Cabinets are
working and hooked up correctly. If you think something is
wrong with your Amp, play straight into the Amp with nothing
else hooked up other than a Guitar. That way you make sure
it is the Amp. If you own a combo unplug the internal
speaker and hook up an external speaker cabinet to make sure
it's only the amp which is faulty. For noise check the
appropriate preamp tubes (refer to f ). Tubes are delicate
and have a limited live span depending on operating time,
temperature and mechanical influences. 99% of all sound and
noise problems come from preamp tube failure. We let our
amps run for at least two days before we ship them to make
sure that the tubes work properly but since they have a
glass housing and delicate little plates inside them it
happened that they got damaged during shipping. Please don't
feel discouraged. We don't manufacture tubes and can only
retest them to make sure they're okay.