Cables And Connections; Amplification & Power Handling - Wharfedale Pro LX Seroes User Manual

LX LXE Manual all dwgs 23/8/04
L X ( E ) S E R I E S M U LT I - P U R P O S E L O U D S P E A K E R S Y S T E M S
* PRO-TECH™: The LX & LX-E series speakers are equipped with The PRO-TECH™ System - a dynamic tweeter protection circuit, composed of an accurate
and sensitive protection lamp. When high signal levels are present that may pose a dangerous overload for the tweeter coil the protection circuit will acti-
vate immediately to limit the power sent to the transducer.
Unpacking
All Wharfedale products are fully tested and inspected before leaving the factory. After unpacking your loudspeaker please inspect it for any physical dam-
age. In the unlikely event of damage caused in transit please contact your Wharfedale dealer immediately so that a written claim for damages can be made.
Please retain the shipping carton and all packing materials in case the unit needs to be returned.

Cables and connections

All Wharfedale LX loudspeakers are fitted with a pair of 4-pole Neutrik Speakon™ Connectors. The two connectors on each loudspeaker are wired in parallel
allowing two cabinets to be wired together from a single amplifier. When choosing speaker cable a professional grade of cable with an overall round sheath
will be harder wearing and easier to handle than hi-fi figure-of-eight cables. Cables should always be coiled freely and not coiled over the hand and elbow
which forces the conductors to twist within the outer sheath making the cable difficult to handle. Speaker leads should be made with a minimum of 2.5mm
csa (12 gauge) cable. However for cable runs over 50m a minimum of 4mm (10 gauge) cable should used.
Speakon Pin Assignment
1+ Full Range +
1– Full Range –
2+ No Connection
2– No Connection
Amplification & Power Handling
Wharfedale Pro loudspeakers should be driven by professional quality amplifiers capable of providing adequate headroom when operating at high levels. A
low powered amplifier with insufficient drive capability will not allow the full performance of the loudspeaker to be realised. A low powered amplifier is also
more likely to be driven into clip and damage to your loudspeakers.
Amplifier clipping commonly occurs when amplifiers are used that are too small for the loudspeakers. If these amplifiers are driven beyond their maximum
recommended limit the output from the amplifier is clipped. If a clipped signal is fed to a loudspeaker, it will not only detract from the sound quality, but
can cause permanent damage. [Clipped waveforms tend to heat up the speaker voice coil while driving it out of the magnetic gap resulting in the loud-
speaker overheating and failing]. Some amplifiers have a soft clip function which helps to round off the edges of clipped waveforms. However, an external
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