ALLNIC AUDIO M-3000 MK2 Посібник користувача - Сторінка 4
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Please read about SAFETY before you attempt to use the M-3000 MK2 - we
care about our customers and the equipment, and we want you to enjoy
this product for a long time!
INTRODUCING THE M-3000 MK2 MONOBLOCK POWER
AMPLIFIER
The M-3000 MK2 monoblocks are Allnic
Audio's top of the line, parallel push-pull
power amplifier model. Like all Allnic Audio
products, the M-3000 has Permalloy (iron
and nickel alloy) for its transformer cores.
Allnic is grateful to Mr. G.W. Elmen of
Western Electric for inventing Permalloy for
transformer core use, and in so doing,
providing an enormous service to recorded
music listeners everywhere.
The M-3000 MK2 has the following features:
•
200 watts of high power output. The M-3000 MK2
is a parallel push-pull, triode/pentode switchable
power amplifier.
•
Powerful Driving Circuitry. Allnic believes in the
importance of using high-quality, low noise and
powerful driving circuitry in all its amplifying
devices. Therefore, in the M-3000 MK2, we employ
the E282F tube in triode mode as the second stage
driver tube, with a load of about 5K ohms, and
using 20mA of current. The listener can easily hear
and even "feel" the differences between this
design and other, more conventional, ones. Please
imagine, as you listen to the M-3000 MK2, its
sound compared to the sound of an amplifier with
conventional 12AU7 or 12BH7's used as drivers,
with a load of about 47K ohm, and using 2 to 3mA
of current.
•
"Full
Engagement"
Conventional output transformers use pre-set
secondary windings to accommodate 4, 8 and 16
ohm
loudspeaker
Output
Transformers.
loads.
However,
these
conventional
transformers
secondary winding at a time, while the other
secondary windings remain "idle". This approach
has two adverse effects. First, the output
transformers are not working at their maximum
efficiency, reducing their output relative to their
potential. Second, the "idle" windings are not
actually "idle"; they are subject to parasitic
oscillations, producing their own "signal". This
undesirable electrical information is additive to the
transformer's output, distorting the amplified signal
going to the loudspeaker. Allnic's "Full Engagement"
transformers address these issues by having 4
independent, secondary windings which are always
fully connected, never "idled". This means that all
secondary windings are always connected to your
loudspeakers, regardless of which output switch
position
you use (4 ohms or 8 ohms or 8 ohms or 16 ohms,
depending on the factory configuration you have
selected). The result is that there is neither a loss
of transformer output efficiency, nor the
introduction into the output signal of distortion
from parasitic oscillations of the secondary
windings.
Large Nickel/FeSi Core Output
Transformers. As with our other models, Allnic
uses very large output transformers (114 mm) with
nickel, mixed with FeSi, cores. This provides for
higher inductance with fewer windings than other
designs can provide and results in the great benefit
of an extremely wide range of output frequencies.
•
"Soft-start" Circuitry. Allnic uses soft start circuitry
that, after sufficient warm-up only, provides the
high voltage supply to the plate of each tube. This
protective design results in prolonged tube life and
fewer and less frequent issues with tube
performance.
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