KEF REFERENCE 107 - Power Supply Connections; Using K-UBE; Installation Check; Preliminary Set-Up

POWER SUPPLY CONNECTIONS
K-UBE is powered by means of an external AC adaptor fitted with two flying leads. One is
the power cord and the other, terminated in a DIN plug, is the low voltage AC supply for
K-UBE.
The AC adaptor is pre-wired at the factory, and appropriately labelled, for either 110V or
220V nominal working voltage.
CAUTION: Check that the voltage marked on your K-UBE AC adaptor corresponds to the
AC supply in your home. If correct, connect the AC adaptor power cord to a suitable AC
outlet, either in the wall, or if available, on your amplifier. Next, plug the DIN plug into
the low voltage power input socket on the rear of K-UBE, and check that the front panel
LED is lit.
K-UBE power consumption is negligible and so it is convenient to leave it ON’ all the time
that your system is in regular use. If for any reason your equipment is not going to be used
for an extended period, e.g. holidays, then it is good safety practice to switch off K-UBE by
removing the power cord from the AC outlet.
3.3 USING K-UBE
INSTALLATION CHECK
Before switching on vour hi fi svstem, make a final check on the following points:
Is head assembly 'L' installed on bass cabinet 'L' and 'R' on 'R'2
Are the speakers connected to the amplifier?
Are the speakers 'L' and 'R' connected to the appropriate channel?
Is K-UBE connected correctly, according to the instructions above?
PRELIMINARY SET UP
Check that the LED on the front panel of K-UBE is illuminated.
Identify the TAPE MONITOR push button on the rear of K-UBE, and make sure this is in
the SOURCE’ position, i.e. Out.
If K-UBE is connected in the tape monitor/external processor loop of your amplifier, select
TAPE MONITOR/EXTERNAL PROCESSOR on your amplifier controls. If you wish to
replay signals from a tape deck, please refer to sections 3.2 and 3.3.
Select the desired source (CD, Disc etc.)
Set all three rotary controls on the front panel of K- UBE with the dot on the knob at
12 o'clock, and the tone controls on your amplifier ‘flat’.
For best results adjust the controls in the following order. Resist the temptation to adjust
Extension or Q-factor whilst setting Contour - you are likely to end up with a confused and
incorrect result.
USING THE CONTROLS: CONTOUR
All speakers interact both with the room in which they are used, and with their position
within that room. It is unlikely that any speaker can sound equally well in all rooms, and
certainly
not
in
all
positions.
K-
UBE’s
Contour
control
is
designed
to
allow
you
to
optimise
Model
107
for
your
listening
room
and
preferred
sound
balance.
It
does
this
by
raising
or
lowering the frequencies below about 160Hz by up to 3dB.
Select disc or CD and play a record with well defined extended bass. Listen carefully to
the
balance
between
bass
and
midrange.
If
you
think
the
bass
is
too
'full-bodied'
or
over
10