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This basic configuration is as shown below.
Newly developed ''isolate drive circuit'' and ''wave correction circuit'' are added to the conventional
Super A bias circuit.
In addition, newly developed IC exclusive for Dynamic Super A is employed in the Super A bias
circuit.
Function:
Effect:
Isolate Drive Circuit
Purpose:
amplification stages.
Idealizes
the
interface
between
the
voltage
and
power
Drives the power stage at low impedance by FET independent
of the output impedance of the voltage amplification stage.
speaker impedance.
1. Always drives at low distortion without the influence of the
electromotive force.
Input
Dynamic Super A
Voltage
amp. stage
Isolate
drive circuit
Wave correction
processor
Power
amp. stage
Output
Purpose:
Function:
Effect:
Wave
Correction Processor
Reduces the non-linear distortion of the
transistors in the power stage.
Corrects the signal to the power stage in
advance.
Reduces the distortion by 20-40 dB more
than the conventional
processor.
Thus,
this amplifier can be said to be the non-
feedback amplifier.
\
New Super A IC
Newly developed monolithic IC exclusive
for Dynamic Super A which improves fur-
ther the current linearity and high-speed
response
ability as compared
with
the
conventional Super A IC.
Fig. 1 Block Diagram of Dynamic Super A
A-X55
No. 2589
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