Decware
started it's business in 1996
selling a single product called
The Zen Triode Amplifier.
This incredible design showed
the world what's really possible
with only 2 watts and remains
the backbone of our company some
20 years later.
There are 3 models of our 2 watt
series of Zen Triode amplifier.
The basic model, an XLR balanced
model, and this model, the
SE84UFO3 which is unique because
it consists of two
individual amplifiers, one
for each speaker.
These 'mono' amplifiers are
essentially our basic model
split in half, so there are no
substantial gains in power
because it's not about that ~
it's about transparency.
The term "transparency", which
is a fancy adjective meaning
"resolution", is practically
owned by the Zen Triode design
because it has only one
capacitor and two resistors in
the signal path. This is what
gives music playback the vivid
liquidity and 3D space that's
actually locked away in most
good recordings.
Appreciated in over 56 countries
the basic model Zen Triode over
the past 20 year has set a
pretty high benchmark. These new
mono-blocks simply nudge that
benchmark a bit higher.
The way they do it is by
actually fixing the incoming
power that feeds the amplifier
through the use of a vacuum tube
regulator (shown below) not
found in the other models.
This regulation is quite
different in that rather than
shunting power to ground to
maintain a constant voltage or
current, which in turn creates
noise that must be filtered out,
the Zen Triodes launch electrons
through a gas that are collected
and stored on a plate feeding a
high voltage input stage.
 The
result of this series vacuum
tube power supply is a complete
blocking of power supply
harmonics, noise, hash, grain,
and spikes. Similar to pure DC
from a battery but with more
current.
This clean power allows the
transparency of a Zen Triode to
go deeper. You can get a similar
effect from our basic model if
you were to plug it into a $6500
power re-generator/conditioner
with fan noise, more power cords
etc.
In the Zen Triode, the clean
power from the vacuum tube is
only inches away from the input
stage which uses it, and there
are no connectors or plugs or
circuit boards to complicate
matters.
This is really the only way to
make a perfect amplifier like
our basic model better, which is
to say just give it cleaner
power and a bit more headroom by
doubling and then separating the
power supplies for each
channel.
These Mono's make it possible to
place an amp near each speaker
so that you can reduce the
length of your speaker cable.
Speaker cable is often a weak
link in the chain, so the less
of it you have, the deeper the
listening experience will go
with a Zen Triode Amplifier.
Steve Deckert / DECWARE
A Zen Triode is Point-to-Point
wired throughout with no circuit
boards
A
Zen Triode has only two
resistors, two tubes, one
transformer and one capacitor in
the signal path. That's the
entire amplifier.
In fact a
Zen Triode
has only
11 Solder nodes between input
and output jack making it infinitely
simpler than even a single
op-amp!
Shown below is a schematic of
the op-amp shown above. It has 11
resistors and 24
transistors. In a Zen Triode the
same thing is accomplished with
1 resistor and 1 tube. Too keep
from failing the op amp has lots
of negative feedback. A Zen
Triode requires none and has
none.
Each Zen Triode Mono has a high
voltage supply that is 400%
larger than required by all the
tubes on board.
In addition, they are built with
our proprietary UFO output
transformers which have a
frequency response out to 70KHz.
Each amp has a gain control on
the input. There is also a
pass-thru RCA output jack on
each amplifier so that you can
bi-amp your speakers without
cabling headaches.
There is a speaker impedance
switch to go between low and
high impedance loudspeakers
while music is playing so that
you can determine by ear which
is the best setting for your
speakers.
Foil caps are used for maximum
transparency with an organic
feel.
Ships with Military Grade
6P15P-EB long life output tubes
that are unbeatable at any price
by EL84's which the amplifiers
can also use. 6922 input
stage.
Zen Triode Mono's shown in
the standard Walnut base.
OPTIONAL
KNOBS available on checkout
ebony knob, gold knob,
black chicken head knob,
cream chicken head knob,
rosewood knob
REVIEWS
You
may read reviews on
this design
going back 21 years.
This
amplifier requires no adjustments or
maintenance other than changing tubes
every couple years. It is a self
biasing design and self balancing
meaning even unmatched tubes become
matched when installed. The SV83
(6P15P-EV) or EL84 output tubes wired
in triode were chosen over 300B, 2A3,
45, and other triodes for having the
best sound and imaging.
| Weight
|
|
17
lbs. ea. |
| Dimensions
|
|
8.0" H
x 6.125" W x 12.0" D
|
| Circuit
type |
|
Single
ended Class A Triode
|
| Power
output |
|
2.7
watts RMS into 4 or 8
ohms |
|
|
|
Stable
into 1 ohm speaker loads
|
| Input
voltage |
|
2.0
volts for full output
|
| Noise
/ Hum |
|
Less
than 1.0 millivolts
|
| Response
|
|
20 Hz
~ 80 kHz |
| Feedback
|
|
ZERO
negative feedback used
|
| Rectification
|
|
5U4G
or 5AR4 or 5Y3GT/ tube
rectification |
| Output
tubes |
|
SV83
or EL84/6BQ5 |
| Signal
tube |
|
6N1P
or the following alternates:
6922, 6Dj8, 6N23P,6H1N,6N5P
|
| Transformers
|
|
Decware
UFO wide bandwidth Ultra
Fidelity Outputs
|
| Biasing
|
|
Self-Biasing
|
| Resistors
|
|
precision
WW/MF by DALE, VISHAY
|
| Signal
Cap |
|
Foil
caps |
| AC
cord |
|
Removable
power cord |
| Consumption
|
|
65
watts at full power
|
| Input
jacks |
|
RCA
type 24K Gold / Silver
|
| Output
jacks |
|
5-way
binding posts accept 10 gauge
|
| Speaker
dB/1w |
|
89 dB
minimum / 94 dB or higher is
ideal for most rooms
|
| Warranty
|
|
Lifetime
to original owner
|
OWNERS MANUAL
We offer
this amp with a
30 day money back trial
so you can hear one
in your own room!
Available in 120 or 240
volts.
|
