Sonus Faber Principia 1 - Manual (Page 11)

ASSEMBLY
Follow the indications below for the model you have.
This operation must be carried out with all equipment switched off!
The connecting clamps that accept connection with spade connectors, bananas and with the bare cable are on the rear
panel of each speaker.
There are 4 terminals on the PRINCIPIA 7, 5, 3 and 1 models which means that connection can be carried out in three
ways:
CONNECTION INSTRUCTIONS
The terminals are to remain connected to each other
through bridges; connect one speaker to the output
terminals of the right channel of the amplifier, and the
other speaker to the output terminals of the left channel
of the amplifier, following the correct polarity as shown in
fig. 5 and 6. Bi-amplification improves the reproduced sound in a
general manner, and in particular gives greater dynamics
and control of the bass frequencies. It requires two
stereo amplifiers and two pairs of power cables and
the connections between the speaker terminals must
be removed. One amplifier is used to amplify the high
frequencies (right and left channels), and is connected by
a pair of power cables to the terminals dedicated to the
high frequency drivers.
The second amplifier is used to amplify the bass
frequencies (right and left channels), and is connected
by a pair of cables the terminals dedicated to the bass
frequency drivers See
fig. 9.
The PRINCIPIA Center model features two connection
terminals; the type and mode of connection is as shown
in
fig. 10.
Finally, the accurate tightening of the contacts and
a periodic check of these contributes to improved
performance.
The purpose of this type of connection is to enhance
general reproduction quality, and in particular the bass
frequencies. This requires two pairs of power cables used
as follows: remove the connections between the terminals
(bridges), connect each pair of terminals separately to the
amplifier as shown in
fig. 7 and 8.
If you are using one of these bookshelf models with their
specific stand, please read carefully the relevant assembly
instructions and then the instructions for mounting the
speaker on the stand
(see fig. 3).
When assembling the base and spikes at the base of
these floor-standing models, please follow the instructions
shown in
fig. 4 carefully.
The PRINCIPIA Center model is designed to be simply
placed on a dedicated surface.
MONO-WIRING BI-AMPLIFICATION
BI-WIRING
PRINCIPIA 1 & 3 PRINCIPIA 5 & 7
PRINCIPIA CENTER
ENGLISH