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PLINIUS REFERENCE A-150
TERMINATION QUALITY
Quality of the connections must be examined to ensure that high performance trouble free
operation is enjoyed. Check that the connections are tight but do not over tighten. If bare
wires are used make sure that no loose strands of wire short cross the other terminals or the
amplifier chassis. When using plugs such as bananas, be sure to use good quality plugs with
a firm fit.
BI-WIRING
Bi-wiring uses two pairs of loudspeaker cables for each channel loudspeaker. You will notice
that the rear panel of your Plinius Reference A-150 has two pairs of output terminals for this
purpose. Be sure to follow correct practises for stereo and mono configurations when using
bi-wiring.
When using bi-wires in a STEREO installation, connect each wire pair to a corresponding
pair of binding posts (one cable + and - to the top pair, one cable + and - to the bottom pair)
paying special attention to positive (+) red and negative (-) black polarity.
With a MONO setup bi-wring can still be achieved, but uses only the positive (+) red binding
posts. Use the upper red binding post for the first bi-wire pair and the lower red binding
post for the second bi-wire pair. Details for MONO setup are later in this section.
NOTE: be sure to disconnect the bridging plate from the speaker input. Consult the
instructions that came with the speaker, or your Plinius dealer for further assistance.
PHASING (OR POLARITY)
It is important to achieve good stereo imaging in your listening room. By observing
the wiring instructions above, each power amplifier/loudspeaker combination should
be in phase. If you experience poor stereo image and/or a lack of bass, check that the
loudspeaker wiring has been connected correctly. We recommend that you use one of the
easily obtainable ‘test discs’ to help you ensure both phasing and channel orientation are
correct. If in doubt, consult your Plinius dealer for advice.
To achieve a sound performance that is correctly aligned to your room, make sure all of the
leads carrying signals for the right channel loudspeaker are connected to the right input to
the amplifier from your preamplifier or CD player etc. Signals for the left channel should be
wired in a similar fashion.
BRIDGED/MONO CONNECTIONS
There are essentially four different ways that you can connect your system components to
the Plinius Reference A-150 power amplifier:
1. RCA STEREO
2. RCA BRIDGED MONO
3. XLR STEREO
4. XLR BALANCED MONO
