6
B.
INPUTS
In the centre of the four RCA connections on the rear of
the AUT 2000’s chassis is a screw type connector. This
connector is the ground connection for a ground wire
from a cartridge and/or turntable. Please refer to Figure
4.
There is one (1) pair of single-ended (RCA) inputs. The
right and left channel input connections are the bottom
pair of RCA connections, below and to the left and right
of the ground connection. The left channel input
connection is on the right of the unit, facing the AUT
2000’s rear panel (on the left if you are facing the front of
the unit). The right channel input connection is on the left
of the unit, facing the AUT 2000’s rear panel (on the right
if you are facing the front of the unit).
C.
OUTPUTS
The AUT 2000 is equipped with one pair of single-ended
(RCA) outputs. The right and left channel output
connections are the top pair of RCA connections, above
and to the left and right of the ground connection. The
left channel output connection is on the right of the unit,
facing the AUT 2000’s rear panel (on the left if you are
facing the front of the unit). The right channel output
connection is on the left of the unit, facing the AUT 200’s
rear panel (on the right if you are facing the front of the
unit).
The AUT 2000 has been designed and manufactured to
work most synergistically with other Allnic Audio
products, for example the Allnic phono stages and
preamplifiers.
OPERATION
Be sure you have turned the volume down or otherwise
muted your preamplifier before connecting the AUT
2000. Also, make sure all your connections are snug.
At this point, if you have not already done it, using a coin
or other non-abrasive suitably shaped object to turn the
two front panel gain selection switches to the gain that
you think will work for your moving coil cartridge.
The “X#” scale on the rotating selectors corresponds to
the factor that you will select for the millivolt output of
your selected MC cartridge. Each position on the X#
scale corresponds to an increase in gain, indicated on
the +#dB scale. You should use identical settings for
both transformers to avoid channel imbalance.
The possible settings are:
•
10 X / +22dB Gain
•
15 X / +26dB Gain
•
20 X / +28dB gain
•
30 X / +32dB Gain
Please see Figure 5. You may need to experiment with
different gain settings to find the one best suited for your
cartridge.
From this point on, operation is straight-forward. Of
course, always be sure you have turned the volume down
or otherwise muted your preamplifier before changing
gain on the front panel selectors.
Also, BE CAREFUL about differences in gain between your
sources. Generally, disc players and tuners will have
greater gain than phono stages, with or without step-up
transformers. That means the volume setting for listening
to your turntable might be too high for listening to CD’s.
In the case of any failure, please contact Hammertone
Audio.
SPECIFICATIONS
FOR THE ALLNIC AUDIO AUT 2000 STEP-UP
TRANSFORMER
Inputs: MC (Moving Coil – unbalanced
(RCA) × 1 pair
Outputs: Unbalanced (RCA) × 1 pair
Ground: Screw Type x 1
Maximum Input
Level (Non-clipping): At 20Hz, 10 Times: up to
230mV
15 Times: up to 150mV
20 Times: up to 115mV
30 Times: up to 57mV
At 1kHz, for any ratio, more
than 10V
At 10kHz, for any ratio, more
than 10V
