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Extracted text from mcintosh c 29 brochure (Ocr-read)
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McIntosh engineers could
not be content with
another preamplifier
New concepts, new technology
has produced a preamplifier that
gives you flexibility.
Look at the great number of ways you can enjoy the C 29
C 29 DIVERSIFIED FLEXIBILITY
1. YOU CHOOSE FROM EIGHT DIFFERENT
PROGRAM SOURCES
The input switch selects from six different
sources or you can choose to listen to either of
two tape recorders at the push of a button.
2. PRECISION STEP ATTENUATOR
VOLUME CONTROL
Ideal volume
control
tracking accuracy and noise
free performance are two of the considerable
benefits of the McIntosh Precision Step At-
tenuator. It is a thirty-two step, 70 dB range con-
trol with unheard of tracking accuracy within 1
dB. The extreme accuracy is obtained through
special electronically controlled resistance ele-
ment trimming. The accuracy and quiet operation
are maintained because the switch commutator
touches only the switch contact pad and not the
precision resistor elements.
3. AUTO TURN ON/TURN OFF
Power to the entire stereo system can be controll-
ed from either the front panel power switch or the
turntable's power switch. A current sensing
relay
connected to the turntable AC power outlets is
controlled by the turntable power switch. The
relay, in turn, controls the AC power to the
re-
mainder of the system.
4. STEPPED TONE CONTROLS INDEPENDENT
IN EACH CHANNEL
Settings are precise and repeatable in each chan-
nel, independently. Each tone control is a
separate eleven position switch concentrically
mounted. Each step is connected to carefully
selected resistors and capacitors to give the
precise frequency curve shape. Because the tone
circuit component parts are not in contact with
the switch surfaces, as in ordinary continuously
variable rotary controls, they never change, never
get noisy and provide exact, repeatability set-
tings.
5. YOU ALWAYS GET THE IDEAL STEREO IMAGE
The McIntosh seven position mode
selector
has
facilities to permit the correct
balancing
of a
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stereo system to maximize stereo imaging.
6. YOU CAN LISTEN AT LOW VOLUMES
WITH EQUAL PLEASURE
A continuously
variable
loudness control lets you
enjoy full frequency response and warmth of
music regardless of the room volume you choose.
As volume is reduced, the frequency response is
adjusted to complement the human ear response
characteristics, the Fletcher
Munson
effect.
7. TAPE RECORDING AND PLAYBACK MADE EASY
Tape input, tape output and switching facilities
are provided for two three-head tape recorders.
Simply push a button to listen to either one - - or
record from any selected source on either or both
- - or - - copy from one tape recorder to another
while listening to an entirely different program.
You can instantaneously monitor either tape
recorder.
8. STEREO MICROPHONE INPUT MAKES
RECORDING EASY
Microphones in stereo may be used with the C 29.
By tuning the input selector to MIC the
microphone set-up will be connected to either one
or both of the two tape recorders connected to
your system.
9. THE CONSTANT LOUDNESS
BALANCE CONTROL
The McIntosh balance control adjusts each chan-
nel independently for stereo imaging without
changing overall stereo volume in the room. While
natural balance is at the center of the control; ad-
justment
to either right or left compensates for
program variations or room acoustic differences.
10. LISTEN TO YOUR QUIET RECORDS, QUIETLY
Any unwanted noise (hiss, rumble, fry, etc.) can be
reduced with the filter switch. It allows the reduc-
tion of low frequency noise and high frequency
noises (below 50 Hz and above 7 kHz).
11. CONTROL REMOTE LOUDSPEAKERS FROM
YOUR PREAMPLIFIER
Through a unique McIntosh design, you have
ON/OFF control of two separate sets of stereo
speakers when used with an accessory switching
relay (the McIntosh SCR 2).