Front Panel Controls
balance control are eliminated. (Note: Identical
speakers are assumed. Good quality speakers of
good manufacture will
be within 1 dB
of each other over the audio range.
the two channels of a
ever, the
may want
and introduce appropriate loss into
the "hot" side.)
E.
Equalization
{-6 dB, RIAA,
+6 dB)
Below the INPUT selector
and effec-
tive only in the PHONO position of that control,
a three-position slide switch allows some compen
sation for recording defects. In the center (Nor
mal)
this switch provides the standard
RIAA equalization. In the left position, the high
response is dropped by 6
while in
the right
the response is enhanced by
6 dB. Some manufacturers
as Deutsche
conscientiously adhere to R IAA spec-
while others
on
2-2
The Barney Oliver Audio Amplifier
enhance the high end to compensate for the
deficiencies of the usual playback
If your
are
the -6 dB
will help
correct this
If you find the +6 dB position
better in the majority of cases, your
your
need attention.
BASS Switch (F LAT, BOOST)
Located below the
FILTER
control is the two-position BASS switch. In the
BOOST
the switch raises the response at
6
from 80 Hz down to 20 Hz. In the
BOOST position,
is
provided for the usual low-end roll-off of good
speakers.
at 40
50
If you are
fortunate
to have an
of
woofers with real poles at 80 Hz and 20 Hz
as LE-15A's or ALTEC 411-A's in 9 cu. ft. or
enclosures), the BOOST position will closely
compensate the low-end roll-off down to the
bottom of the audio range. For
very
high sound
levels, the FLAT position is recommended.
Summary of Contents for Barney Oliver
Page 1: ... 3 AMPLIfIER ...
Page 11: ... ____ 10 93in 278 NOTE CASE IS AN EXTRA PRICE OPTION ...
Page 16: ...eTION V I IR UIT DIAGRAMS ...
