Yamaha MX-800/U - Page 5

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U.S. & Canadian model
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Generai model
FEATURES
E Hyperbolic Conversion Amplification Circuit
E Advanced Power Supply Circuitry (APS)
E High Dynamic Power
E Three-Paw Speaker Support
E LCD (Liquied Cristal Display) Power Level Meters
E Overload Protection Circuitry
Hyperbolic Conversion Amplification Circuit
This
new
kind
of
circuitry,
developed
by
Yamaha,
eliminates
the
only
serious
drawback
of
previous
Class
A
operation
amplifiers.
These
had
to
switch
to
non-linear
class
AB
operation
above
a
certain
load
current,
causing
a
slight
deterioration
in
the
otherwise
excellent
sound
quality. The
new Hyperbolic
Conversion
Amplification
Circuit
does
away
with
this
problem,
allowing
your
Yamaha
MX-800/U
to
deliver
superior
performance
constantly,
without
switching
or
cut-off,
over
its
entire
power
range.
Advanced Power Supply Circuitry (APS)
An amplifier is only as good as its power supply — this simple truth has prompted Yamaha to
develop the APS circuitry incorporated in your new MX-800/U. The problem with conventional
power sources was their tendency to produce pronounced voltage ripples during medium to
large amplitude music signals, particularly under low impedance loads, together with voltage
fluctuations in the power transistors. APS solves this problem by providing an active power
source that ensures stable voltage in the final transistor stage under all operating conditions,
thus greatly improving power supply to the amplifier.