5 Recommendations for Optimum Use
•
Ensure that the quality of the mains supply is good enough and that it can supply the
required peak currents. In addition, good earthing is necessary to prevent noise, hum
and safety problems. If hum does occur, it can almost always be solved by using the
ground lift switch on the back of the amplifier.
•
Be sure that the ES 20 is built into a space with sufficient circulation of fresh air. A tem-
perature that is constantly too high leads to switching on and off of the thermal protec-
tion and considerably reducing the lifetime of the amplifier.
•
When built into a flightcase, ensure yourself that there are sufficient possibilities for the
heated air to leave the flightcase. When more ES 20s are built into one flightcase, in-
stall an extra fan in the case. Air flow of the ES 20 goes from front to back.
•
Do not make connections to the amplifier or to any preceding equipment with the am-
plifier switched on
•
A faulty fuse must ALWAYS be replaced by a new one of the same type and value! A
different fuse can cause permanent damage to the amplifier. All internal fuses are of
an automatic type, so they do not need to be replaced. Always disconnect the ES 20
from the power supply before operating on the fuse holder! When a replaced fuse im-
mediately blows again, the amplifier is defect and should be repaired by an authorised
Stage Accompany service centre. Do not try to replace the fuse again because you
may risk further damage to the amplifier.
•
Repairs to the ES 20 should only be carried out by an authorised Stage Accompany
service centre. Never dismantle the ES 20 yourself, you may risk damaging vital com-
ponents: moreover, the guarantee becomes irrevocably invalidated.
•
Read this manual carefully. Try out the various functions described in this manual. In
this way you will soon become familiar with the many possibilities that the ES 20 of-
fers. It is just as important that your colleagues who will use the ES 20 also read the
manual! With a good knowledge of the working of the ES 20, it is possible to fully util-
ize its superior sound quality in every situation.
GOOD LUCK!
RECOMMENDAT
IONS
stage accompany
R
ES 20 USER MANUAL
5-1
