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Model TORII
MK II
100/120/240 VAC 50/60Hz
Factory Direct $2495.00
Suggested
List $4195.00
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OVERVIEW:
Coming
from a perspective of SET amplifiers, the Zen Torii is a unique
minimalist designed push-pull pentode amplifier with no negative
feedback. It has the liquidity and micro-detail of our
SET amps but with 25 watts per channel. Although rare,
it's proof that a well engineered push pull design can sound
as good as a single ended design and even surpass it in some
areas.
Like
our 2 watt triode amp the TORII MK II is a hand crafted
amplifier with only 1 capacitor and 2
resistors in the signal path.
Of course there are no circuit boards and
no Chinese parts. There is a lifetime warranty
though.
It
uses your choice of EL34, 6550, KT77, KT88 output tubes. Matched
pairs are of course required, but the amp is self biasing so
no adjustments. Input tube is your choice of 6N1P, 6DJ8
or 6922's. In this amp the OA3 voltage regulator tubes
are regulating the grid of the output tubes making it possible
to get a linear response without the use of feedback.
The only problem with this amp is the price.
Audiophiles who are always looking for a
better sounding amplifier have owned and
presently have amplifiers costing many times
this amount... so it becomes almost
impossible to wrap their brain around the
simple fact that this amplifier could
sound better than theirs. If you're a
serious audiophile, try it on our 30 day money
back trial and see for yourself.
STYLES:
This amplifier comes in two basic styles made
possible by interchangeable hardwood bases. The
amp shown below is in the black base.
Below that is the contemporary base. You may choose
between the two bases when you order
your amp. We can also custom manufacture the contemporary
base in any hardwood, including exotics for an extra cost.
Shown in the Classic Black Base
Shown
in the Contemporary Black Base
FEATURES:
The TORII
MK II has a volume (gain) control located on the front so it
may be used without a preamp. We recommend if you
own a preamp to try both using and not using
it to see which is actually
better. There are also two pair of inputs
with a selector switch mounted just behind the gain control.
Output impedance is selectable with a switch from 4 to
8 ohms. It will drive most speakers including 16 ohm speakers
in either setting so it is a matter of what setting sounds best
in your system.
Additional
features are listed at the bottom of this page.
IDEAL SPEAKERS:
We love
this part... the amp will drive all but the most power hungry
speakers so the question becomes not what is the ideal speaker
but what speakers out there might sound better then what you
presently have? Only you can decide. We recommend
just continue to use what you have while evaluating the amplifier
on our 30 day trial.
SPECIFICATIONS:
This amplifier requires no adjustments or
maintenance other than changing tubes every
couple years. It is a self biasing
design. Output tube life is several years.
INPUT
TUBE CHOICES: 6922, 6DJ8, 6N1P
OUTPUT
TUBE CHOICES: EL34, 6550, KT88
VOLTAGE
REGULATION: OA3
RECTIFIER
TUBE CHOICES: 5Y3GT, 5AR4, 5U4
INPUTS:
1 RCA TYPE INPUT JACK FOR EACH CHANNEL
OUTPUTS:
1 PAIR WBT BINDING POSTS PER CHANNEL
OUTPUT
STAGE TOPOLOGY: GND-CATHODE TRANSFORMER RK
RLOAD
PLATE TO PLATE: 6600 OHMS
TRANSFORMER
EFFICIENCY: 97%
PRIMARY
RDC: 124 OHMS
SECONDARY
RDC: 0.6 OHMS
IDLE
CURRENT: 47 MILS PER OUTPUT TUBE
HIGH
B+ VOLTAGE: 410 VDC CHOKE REGULATED PER CHANNEL
INPUT
IMPEDANCE: 100 K OHMS
INPUT
SENSITIVITY: FULL POWER @ 2.0 VOLTS
OUTPUT
IMPEDANCE ZO: 3.2 OHMS
DAMPING
FACTOR: 2.69
POWER
INTO 3.5 OR 8 OHMS: 24.6 WATTS RMS PER CHANNEL
NOISE:
-80dB
OPERATION:
CLASS A1
GRID
REGULATION: ONE OA3 PER CHANNEL
RECTIFICATION:
ONE 5Y3GT or 5AR4 or 5U4 PER CHANNEL
INPUT
STAGE: ONE 6N1P or 6922 or 6DJ8 PER CHANNEL
OUTPUT
STAGE: TWO EL34 or 6550 or KT88 PER CHANNEL
SIZE:
19-1/8 " WIDE x 13-3/4 " DEEP x 7-3/4
" HIGH
NET
WEIGHT: 36.8 lbs.
WARRANTY:
LIFETIME TO ORIGINAL OWNER / 90 DAYS ON TUBES
SHIPS
WITH:
PREMIUM
MATCHED SVETLANA EL34 OUTPUT TUBES
SOVTEK
5Y3GT or 5U4 RECTIFIERS
SOVTEK 6922 PREMIUM INPUT TUBES
N.O.S. OA3 VOLTAGE REGULATOR TUBES
REMOVABLE POWER CORD
VOLTAGES
This amplifier
comes standard with our World Voltage
Compatible Transformer. Your amp will be
automatically wired for the correct voltage
for your country and be supplied with the
correct removable power cord.
2ND GENERATION:
The original version of this amplifier was
called the TORII, came in a blue chassis and had
around 12 watts per channel.
DESIGN NOTES:
The Design
notes
written by Steve Deckert
OWNERS MANUAL:
The owner manual for this amplifier can be
viewed on line or printed:
TORIIMK2
Owners Manual.pdf
TUBES:
This amp is shipped with graded premium
quality RUSSIAN EL34 output tubes. These Russian
tubes are the top grade of what we came to
know in this country as the SVETLANA EL34. You
can also use 6550's, KT77's and KT88's without adjustments of any
kind.
The input tube is a single 6N1P, 6922 or 6DJ8
- your choice. 6N1P's have the warmest
tone, 6922's have the best dynamics, 6DJ8's
have the most air and micro-detail with a
touch less bass. Again, a powerful tool
for voicing your amplifier to your particular
tastes.
The rectifier is a 5U4G and can be substituted
with a 5AR4 or compatible rectifier.
Many owners of this amp like using the
274B. Each rectifier change will also
make audible differences in the sound and
performance of the amplifier.
CABLES:
This amplifier is so transparent that differences between cables will
now become big differences.
If you don't have good interconnects or
speaker cables or just not sure how good yours
are we offer affordable reference quality
cables that will let you hear how good this amplifier
and your
gear really is.
DHC Power
Cords
DSR
Silver Interconnects
ZENSTYX
Silver Speaker
wire
SUPPORT:
This amplifier is hand built in the USA by
DECWARE / High Fidelity Engineering C0.
It comes with a lifetime warranty
to the original owner. If you purchase
one second hand and ever have questions or
technical problems we WILL be happy to check
it out for you and service it if needed for a
very reasonable rate.
We also have a
support forum with many people who own
this amplifier who's experiences you may
benefit from.
REVIEWS:
You may read reviews on this amplifier and
other Decware amplifiers going back to 1996 at
this link:
Reviews
ADDITIONAL
FEATURES:
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