Choosing Loudspeaker Cable
Preparing Loudspeaker Cable
Connecting Screw Terminals
Specialist audio cable usually offers better performance than general purpose ‘bell’ or
‘zip’ wire.
Choose a cable of suitable diameter – cable that is too thin will limit the dynamics of
the sound and may impair the bass response. Audio cable is polarised, with two cores of
different colours, or often a raised rib or coloured tracer in the case of twin cable.
Before you purchase your cable, we suggest that you give careful thought to the
positioning of your loudspeakers. This is especially the case if you are bi-wiring your
loudspeakers.
Cable lengths to loudspeaker pairs should be the same for left and right channels in
order to equalise the signal transmission. Allow some slack in your speaker cables so you
can alter their position to best advantage, but do not have your cables over-long.
Split the twin cores to a depth of about 40mm. Carefully strip the insulation from each
end, leaving about 10mm of bare wire. If the cable is stranded, lightly twist to gather
any loose strands.
All the loudspeakers use screw terminals.
Unscrew the terminal. Insert the bare end of
the cable into the hole in the base of the
terminal. Tighten securely.
When connecting terminals, make sure you
leave no strands of bare wire that can short
across to adjacent terminals.
As an alternative to bare wire you can use
specialist spade connectors. Your Castle
dealer will be pleased to advise you.
Safe Connection of Terminals
Cables and Connectors
40mm
10mm
1
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