Issue 1 : January 2005
kW Phono Pre-Amplifier
Instructions for use
Page 5 of
7
CONNECTIONS
All input, output and power connections
should be made with the mains power
switched OFF.
INPUT CONNECTIONS
The rear panel of your kW Phono pre-
amplifier has two pairs of phono input
sockets, one pair for left and right moving
magnet (MM) and the other pair for moving
coil (MC) pickup cartridges.
(See also page 6, MM / MC switching).
Two sets of switches located on the rear panel
are for optimising phono performance as
follow:
MC
(only):
Input loading can be changed as required by
sliding the LOADING switch underneath the
PHONO MC input socket between the 100
Ohms and 10 Ohms options. Both positions
have an input capacitance of 470pF.
MM
(only):
A four-way switch underneath the PHONO
MM input socket is for matching the
characteristics of your phono pickup and lead
to the kW Phono. When all the switches are
off (up), the input impedance is 68K Ohms in
parallel with 47pF capacitance.
When each individual lever is moved
downwards, loading of the MM phono input
circuit changes as shown by adjacent graphics
on the rear panel (see also specification on
page 7). If you are not sure which
combination to select, please consult your
dealer.
Some turntables or pickup arms are fitted with
an extra wire for chassis earthing. This
should be connected to the chassis earth
terminal
on the back panel.
(Note : this is not a safety earth).
OUTPUT CONNECTIONS
The kW Phono has two line level audio
outputs from RCA sockets on the back panel,
marked
OUTPUTS
. Using good quality
RCA co-axial audio leads, connect the left
and right outputs to the pre-amplifier input of
your audio system.
