VINCENT SP-995 Instructions For Use Manual page 15

CONNECTION OF THE POWER CABLE
Check that the electricity supply to your home is appropriate to the device. The required voltage and fre-
quency can be read on the back of the device beside the socket for the mains. If the electricity supply is
appropriate, push the inlet connector of the supplied mains cable firmly into socket for the mains on the
back of the device (15). Connect the other end of the mains cable to a mains socket.
CONNECTION OF THE LOUDSPEAKERS
You can connect one or two loudspeakers the usual way (via a 2-core speaker cable) to the power ampli-
fier SP-995. For each speaker the unit provides two speaker terminals (5)(positive + and negative -), each
of which is connected to a pair of 2-core speaker cables. Both terminal pairs (the two upper connectors
and the two lower connectors) are parallel and receive the same mono signal. At the loudspeaker con-
nection terminal there are similar connector screws or connectors. There, the polarity of each screw (+ or
-) can be identified as well and the other side of the speaker cable associated with this loudspeaker must
be attached. Make sure only connector screws of the same polarity will be connected by each speaker
cable wire: a knob marked "+" in the amplifier's terminal must be connected with a speaker's connector
screw marked "+" as well. SP-995 can only process the signal of one individual channel, for further chan-
nel(s) (mostly L or R, but sometimes CENTER etc.) additional main amplifiers are needed. The diagram
shows the connections for one speaker.
SP-995
If every speaker is connected in a conventional way (a two core speaker cable for each loudspeaker) and
you own loudspeakers that are equipped with Bi-Wiring terminals (four connector screws) you have to
make sure that the metal brackets (contact pieces consisting of small metal plates or short pieces of cable
which are supplied with the speakers) are applied to the terminal and that each one connects the two
knobs of the same polarity (e.g. both connectors marked "+"). The upper connector screw labelled "+"
at the amplifier's backside must be connected to one of the bridged, labelled "+" connectors of the loud-
speaker. Accordingly, the upper connector screw labelled "-" at the amplifier's backside must be connec-
ted to one of the bridged, labelled "-" connectors of the loudspeaker.
If a second loudspeaker is to be connected, then the clamps in the bottom row of the output terminals
"SPEAKER" are connected in a similar fashion to the additional loudspeaker. However, this is only per-
mitted if both loudspeakers have a nominal impedance of at least 8Ω!
You have the alternative to connect one speaker in bi-wiring.
28 Vincent
speaker cable
loudspeaker
CONNECTION OF THE LOUDSPEAKERS
If a loudspeaker is to be connected with "bi-wiring", both pairs of loudspeaker clamps may be used at
the same time. In contrast to connection of the loudspeakers with one loudspeaker cable each, with bi-
wiring a suitable loudspeaker is connected via two separate two-wire loudspeaker cables or one four-wire
loudspeaker cable to the pair of output clamps on the main amplifier. This doubles the cabling required
but for many combinations of loudspeakers and amplifiers this improves the sound quality.
SP-995
Before changing the system to bi-wiring, the metal bridges fitted to the loudspeaker's double connector in
normal operation must be removed. Only loudspeakers with these bi-wiring terminals are suitable. Filtering
of the entire frequency range occurs in the now separated loudspeaker crossover networks. One cable is
to be connected to the loudspeaker's sockets provided for the higher frequencies (treble) and the other with
the ones for the lower frequencies (bass) for each loudspeaker. Make sure that the polarity is correct. Your
specialist dealer will provide you with advice and assistance.
If you are using ready made loudspeaker cables with 4 mm banana plugs, all you need to do is connect
the two plugs on each loudspeaker cable end to the two associated speaker connectors. Turn the connec-
tor screws clockwise to fasten them.
If you want to use speaker cables equipped with spade lug connectors, every connector screw must be
opened by turning counterclockwise. After that, the lug must be moved under the screw head. Then, turn
the screw clockwise to fasten the lug to the connector. To avoid damages to the amplifier, make sure the
connection is tight and no bare metal from the cable lug connector makes contact with the rear panel or
with another terminal.
speaker cable
loudspeaker
Vincent 29