Dynacord Professional Power Amplifiers User Manual
Page 36
sl s
eries
36
solid dYnacord technology
for universal application at highly
competitive prices was the
maxims for the development of
the sl series of power amplifiers.
They offer high, stable power
output and a high efficiency factor
on the high performance level and
are therefore the ideal choice for
driving a multitude of mobile and club
systems, such as e.g. loudspeakers
of the D-Lite, VariLine or Forum
Line families.
SL series power amplifiers are
equipped with protection against
overheating, overload, short-cir-
cuits, high frequencies and DC at
the output.
Damage to the end transistors
through the feedback of electrical
energy is prevented by the back
EMF protective circuitry.
When powering up, a relay delays
the switching on of the power out-
puts. In addition, a power-up cur-
rent limiter prevents the blowing
of the mains fuses.
Fast audio processors continuous-
ly compare the input and output
signals. In the event of any non-
linearity, the processors send con-
trol signals to the limiters, which
dynamically reduce the input gain
of the power amplifier.