VAC Signature Preamplifier Mk I - Manual (Page 4)

INSTALLATION
1) Provide adequate ventilation.
2) Do not operate on carpet or any other surface that might block air flow.
3) The chassis will become warm in normal use.
4) Do not allow the chassis to touch any metal parts, such as the frame of an equipment
rack. This might create a parallel ground path that could degrade the sound of your
system.
5) Input connection is via single ended RCA jacks or XLR jacks (which can be from
balanced or unbalanced sources). Output can be on RCA or XLR jacks, and can be
set for balanced or unbalanced loads, with or without ground connection at the
preamplifier. IMPORTANT: READ THE SECTION ON “OUTPUTS & GROUNDING
SWITCH”. Connect line level inputs (CD, Tuner, Tape, etc.) to the appropriate RCA
input jacks on the rear panel. Note: with the exception of Phono (when fitted), all
inputs are “line level”
6) Connect phono cables to the rear panel MM or MC inputs labeled “Phono.” Connect
the ground wire from the turntable or phono cable to the “Ground” terminal
provided on the rear panel. Set the MM / MC switch to reflect the input jacks being
used.
7) Connect the power cables from the power supply to the preamplifier. Note that
each has a locating key and a locking collar. Be sure to insert the connector properly,
and fully tighten the locking collar.
8) Connect the input and output cables.
9) Connect the power supply to the power source indicated on the rear panel, either
100, 120, 220, or 240 volts AC. The voltage may be select by means of the
removable selector card located underneath the fuse in the power connector.
Remove the cards and reinstall so that the desired voltage may be read. Avoid
power conditioners that float the ground pin. ALWAYS connect power cord to
component before plugging it into an AC outlet, and make sure that unit’s power
switch is set to the “off” position before making the final connection. For best
performance, try to route the power cord away from signal cables.
10) Pay close attention to power quality, and be aware that different power cords can
alter the sound. The backlit meters show variation in power line voltage as reflected
to the audio circuitry.
11) Set the logo illumination switch to bright, dim, or off.