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CONNECTING
INSTRUCTIONS
TUNER
CONNECTION
Use the TUNER
terminals for connection to
an FM stereo or AM-FM stereo tuner.
Connect the left channel of the tuner to the
"LEFT" TUNER
input jack and the right channel
of the tuner to the "RIGHT" TUNER
input jack.
AUX
(AUXILIARY
INPUTS)
High level AUX
input jacks are for miscel-
laneous sources, such as extra tape decks, additional
tuners
and/or
receivers,
TV
sound
outputs,
and
other external components.
TUNER
RIGHT
A\LEFT
TECHNICAL
DESCRIPTION
DC Power Amplifier
In many
ways the direct current (DC) amplifier
is the ideal amplifier for audio use.
Kenwood
audio
engineers
have taken
up the
challenge of producing this ideal amplifier. The result
has been success in producing a power amplifier which
makes this dream come true.
Characteristics of DC Amplifier
1.
They
make
reproduction
of
low
frequencies
down to subsonic and DC levels possible.
The result is to give a greater sense of power in
the audio
reproduction
which
greatly increases
enjoyment
of music
and
reproduces
the low-
frequency
high-energy sounds of a live perform-
ance as only a DC amplifier can.
.
2.
There
is zero
phase difference
between
input
and output.
Because there are no capacitors in the signal path
to
cause
phase
rotation,
phase
distortion
is
absent.
3.
Output waveform
is a faithful duplication of the
input waveform.
Although
this would seem to
be a natural
prerequisite for a hi-fi amplifier, it
is a fact that only a DC amplifier makes faithful
duplication possible.
8 KA-8100(K)
The performance of
aDC amplifier depends upon
the stability of each individual circuit within it.
In
the input stage, special dual FETs are used, intended
for the most demanding electronic computer applica-
tions (in packs of perfectly balanced pairs).
This is
followed by a three-stage differential amplifier operat-
ing in Class A, in which the open loop gain is high,
and
in which
a fully adequate
degree
of negative
feedback
is applied with a pre-driver load circuit in
which
the
power
transistor
bias is stabilized
by a
constant current supply circuit.
This circuit config-
uration gives excellent stability and extremely wide
frequency response.
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