Infinity Reference Standard I Instruction Manual page 4

A word about
Absolute Phase |
Maintaining absolute phase is an
essential factor in the proper per-
formance of your RS I speaker system.
If all amplifiers were "non-inverting"
{that is,
if their outputs
were
in-phase
with their inputs), then maintaining
absolute phase would simply involve
observing
the proper
polarities
of all
connecting cables. However, since some
amplifiers are "inverting" (that is,
their outputs
are 180°
out-of-phase
with
their inputs), some changes in the
system's hookup
may be required
in order
to accomodate inverting amplifiers.
If your mid-high power amp is
inverting, it will be necessary to
reverse its "+" and "-" speaker leads
(without crossing the left and right
channels) to
keep the system
in absolute
phase.
If your only inverting component is
your preamp, the BASS AMP switch would |
be set in the
NON-INVERTING
position (to
, accomodate
the
non-inverting
low frequency
power
amp), and all
of the speaker
leads
(the four sets going to the RS I speakers)
would have to be reversed ("+" to "="
"=""to "+"; don't cross the left and
right channels).
If you have a pre-preamp for your
cartridge, and it is inverting, carefully
reverse the "+" and "=" leads. at the
phono cartridge. This will produce an
inverted cartridge output, which will be
re-inverted by the pre-preamp, producing
a non-inverted pre-preamp output.
The Passive Crossover
The. 'passive crossover controls are
located at the lower rear of each mid-
tweeter section. Figure 3 illustrates
these controls.
Figure 3:
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TWEETER TWEETER
1% OG INPUT
RSI
The type and amount of furnishings
in your listening room will affect
the tonal balance percieved by the ear,
especially in the middle and high
frequency ranges. After determining
the best position for your speaker system
use the tweeter adjustment controls to
compensate for sound which seems "bright"
or "dull".
The tweeter controls should be
initially set in the middle position,
and then adjusted to suit your listening
environment. In general, rooms with
heavily upholstered furniture and
draperies will require more output from
the tweeters than lightly furnished,
reflective rooms.
The LOW TWEETER control adjusts the
output of the top and bottom front
tweeters, in the frequency range of
2K to 5KHz. The HIGH TWEETER control
adjusts the output ot the center front
tweeter in the frequencies above 6KHz.
Adjust these controls in small incriments
listening to a variety of material.
' The tweeter fuses will protect the
tweeters from overload conditions. Shoulc
any of them blow, replace only with the
same size and type fuse as indicated
above each fuse holder. Using larger
or slower fuses than those specified
will void your warranty.