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Always turn the volume all the way down before switch-
ing between 2 ch and 6 ch mode, otherwise damage
may result.
The 6 channel mode operates from the AC power mode
only.
To keep the signal as intact as possible the Signature
One only uses one relay in the signal path. All switching
is done at the rear input panel by a rotary switch and
only the selected signal is allowed to come forward to
the audio circuit. This minimizes cross talk and signal
degeneration through the use of input relays.
The Signature One uses only RCA type inputs or single
ended inputs to preserve the original signal as close as
possible through the use of less parts in the signal path.
By using balanced line inputs, no matter how good the
parts, we still see 2-5% signal degeneration. The fewer
the parts in the signal path; typically, the less the original
signal will be changed.
Unpacking Your Preamplifier
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Thoroughly inspect your preamplifier
and packing materials for shipping damage.
If you discover any damage, contact your EDGE dealer
immediately. We recommend saving the packing
materials for future shipment. Your preamplifier has
been shipped with a removable power cord and
warranty card. Please fill out the warranty card and
return it to EDGE.
WARNING!!!
Please remove all packaging, and let your unit sit
at room temperature for at least 3 hours before plugging
it in or attaching any cables. It should NOT be cold to
the touch when you hook it up.
Not doing this may result in damage to your unit!
The Signature One Preamplifier is unique in
that it can operate on AC voltage derived from
the wall outlet or DC voltage from it’s internal gel batteries.
It also has the ability to charge its own internal batteries.
The benefit of using batteries is that it is true DC; free
from the noise and hash that is always present on the
AC line. Adding to the Signature Ones uniqueness is
that it uses two separate transformers. When in DC mode
the audio/main transformer is switched off and the batteries
supply all the voltage and current necessary to operate the
audio section. One transformer, the “Buck” transformer, sup-
plies voltage to the control board which contain relays,
LEDs, and the volume motor. The second transformer,
the“Main” transformer, is completely dedicated to the audio
portion of the circuit, thus minimizing feedback and noise in
the audio output. In addition to the two transformers, the
audio stage utilizes three additional regulation stages.
When switching between AC and DC modes, and also
when switching the On/Off switch, an output relay switches
out the signal for approximately three seconds to allow volt-
ages to settle before resuming play. The transformers in the
Signature One are completely isolated in the chassis by a
magnetic shield running the length of the chassis. This
assures no stray magnetic fields are allowed to jump onto
the audio circuit. Where AC is present, it has been wired
with shielded cable to again prevent noise from jumping
onto the signal.
The Signature One also incorporates a totally separate 6
Channel passive mode that allows the incorporation of a
surround processor in your Hi-Fi system. In this mode the
preamplifier accepts 6 inputs and 6 outputs which are
routed through a 6 channel discrete volume control. The
Main output of the preamp is switched between main input
jacks and inputs 1,2,3 while in the 2 channel mode.
Product Overview
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