INPUT SELECTION
When the right-hand selector switch is
turned to obtain the required input, the dis-
play changes permanently to confirm your
choice.
VOLUME ADJUSTMENT
As the volume setting is altered, the display
changes temporarily from indicating the
current input selection to show a correspon-
ding volume reference level. This is on a
decibel (dB) scale, and ranges from minus
30dB (low setting) to plus 13dB at maxi-
mum volume.
However, as the volume is reduced below
minus 30 dB, the display first shows
LOW
,
then
MIN
with further reduction.
BRIGHTNESS
Pressing either the
BRIGHTNESS
button
on the pre-amplifier front panel, or the
DISPLAY
button on the remote control,
cycles the fluorescent display through five
brightness levels.
Tri-Vista Pre Instructions for Use Page 9 of 11
Issue 1: April 2003
OPERATION and DISPLAY
PHONO MM
/
MC SWITCHING
CAUTION
- only operate this function at
low volume setting.
Your Tri-Vista Pre-amplifier has independ-
ent circuits for moving magnet (MM) and
moving coil (MC) phono pickups. To
obtain the preferred input, the selector knob
must first be in the
PHONO
position.
Then, simply press the
PHONO MM / MC
button on the front panel. The display will
change for a few seconds to confirm the
new MM or MC selection, before reverting
to show
PHONO
. Press the
MM / MC
button again to change back to the previous
option.
RIAA
/
IEC COMPENSATION
As a further refinement, the phono pickup
characteristic can be adjusted to suit either
RIAA or IEC compensation curves.
Historically, the original RIAA curve
defined the low frequency limit at 20Hz,
whereas the later IEC standard specifies fre-
quency response down to 10Hz to restrict
possible turntable rumble.
The selector knob must first be in
PHONO
position.
Pressing the
RIAA / IEC
button on the front
panel or remote control switches the phono
pickup stage between the two options. The
display changes to confirm either
PHONO
RIAA
or
PHONO IEC
.
