Musical Fidelity KW250S manual Amplifier Connections, Input Connections, Output Connections

KW250S AMPLIFIER CONNECTIONS

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

Issue 2: 19th June 2006 Page 18 of 24