Musical Fidelity KW250S - Manual (Page 19)

KW250S
AMPLIFIER CONNECTIONS
Issue 3: 12th July 2006
All input, output and power connections should be
made with the mains power switched OFF.
INPUT CONNECTIONS
Phono: The KW250S has a pair of RCA type phono
input sockets intended for use with moving magnet
(MM) or moving coil (MC) pickups. Some
turntable/pickup arm combinations are fitted with an
extra wire for chassis earth. This should be connected
to the earth terminal on the back panel.
Line level inputs: The unit also has two stereo pairs of
RCA “line level” input sockets controlled by the
internal volume setting.
They both have the same input sensitivity, and are
therefore suitable for use with any source component
having a line output of 300mV nominal. The two
sockets on the rear panel are marked, AUX1,
AUX2/PDI, corresponding with function selector
buttons on the front panel. The AUX2/PDI input
sockets on the back share the same input as the PDI
input jack at the front.
Do not connect devices to both sides of the AUX2
input simultaneously. Please see note P.20
Digital inputs: Digital sources are catered for on the
AUX1, AUX 2 inputs. Unit automatically switches
AUX1 input to digital source type (coax/optical) on
insertion of a lead with digital signal present.
OUTPUT CONNECTIONS
Speakers: Connect your loudspeakers to the terminals
on the back panel marked as LEFT and RIGHT
SPEAKER outputs. Make sure both speakers are
connected with the same polarity.
PRE-: The KW250S has its pre-amplifier output
available from RCA sockets on the back panel marked
PRE-OUT, and is controlled by the volume
adjustment.
This is to allow “bi-amplification” using suitable
external amplifiers and crossover networks to power
the speaker drive components separately, giving
noticeable improvement in clarity, imaging and bass
weight. In this arrangement, typically the KW250S
speaker outputs may be used to drive the speaker’s
“tweeter” (high audio frequencies), and an external
higher power stereo amplifier(s) could drive the
“woofer” (low frequencies).
The KW250S’s PRE OUT RCA sockets would
therefore be connected to the input of the external
“woofer” amplifier in this example.
If you are in doubt about bi-amplification, please
contact your dealer for advice.
TAPE OUT: The KW250S has a single tape output
with facilities for recording material to a suitable line-
level recorder such as tape, CD-R/RW, minidisk etc.
The tape deck's line inputs are connected to the units’
TAPE OUT sockets to record the material being
listened to. The line outs should be connected to the
unused of the AUX inputs
Page 19 of 25