LOUDSPEAKERS
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P.12
SA0081-001
This safety accessory kit contains:
o 1 x 30cm steel sling (plastic covered) + 1 x speed nut & Bolt. Used to provide secondary safety
for the front grille.
Fitting the safety wire is very simple and involves bolting it to the grille assembly and fixing the other end to
one of the HF horn mounting bolts.
Use & Maintenance
Checking the PS10 & PS15 internal fuses
The following paragraph concerns only the PS10 and PS15 cabinets, since the PS8 is fitted with a re-
settable fuse that does not require maintenance.
The function of these fuses is to protect the passive crossover against overheating if a speaker
component is accidentally disconnected or fails open circuit. They can also protect amplifiers from current
overloading in such an event. To preserve sound quality the fuses are not inserted in series with the
loudspeaker components themselves and thus do not protect them directly. If a loudspeaker component
is accidentally disconnected or fails open circuit and needs repairing, the fuses must be checked. Their
status can be verified visually and they are easy to replace.
Caution: a broken fuse will degrade sound quality and endanger the loudspeaker components but the
cabinet will still operate. The order of the passive filter will be reduced; this will lead to an improper phase
matching of the two drivers, and in the case of the HF driver to potentially dangerous excursion. It may not
immediately be noticeable. Incidents that can cause fuse breakage require the cabinet to be opened; it is
good practice to always check the fuses in such cases.
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