McIntosh MAC 1900 Brochure

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MIIG 1900 SOLID STIIIE IIM-FM/ FM STEREO RECEIVER

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A B J
- INPUT SELECTOR

TAPE 1: Connects the output of a tape
recorder (with its own electronics) plugged into
the TAPE 1 jacks on the back panel to the high
level input stages.

TAPE 2: Connects the oumut of a second
tape recorder (with its own electronics) plugged
into the TAPE 2 jacks on the back panel to the
high level input stages.

AM: For listening to the AM section of the
MAC 1900.

FM: For listening to the FM section of the
MAC 1900.

PHONO 1: Connects the output of a record
player or turntable plugged into the PHONO 1
jacks on the back panel to the low level pream-
plifier stages.

PHONO 2: Connects the output of a second -

record player or turntable plugged into the
PHONO 2 jacks on the back panel to the low
level preamplifier stages.

-HEADPHONE JACK ,
Plug in a set of low impedance dynamic
stereo headphones. ,

-TREBLE

The high frequency program material is
modified to suit your taste. Slide controls with
mechanical detent for flat position.

- lane's-tune-
I i 'I u- - 'Al 4

D-BASS
The low frequency program material is modi-
fied to suit your taste. Slide controls with me-
chanical detent for flat position.

E-BALANCE
Permits the adjustment for unequal loudness
of sound caused by room acoustics or program
mahterial. One speaker is made louder than the
ot er.

F-VOLUME, ON/OFF

Turn the AC power to the MAC 1900 on and
adjust the loudness of sound to suit your taste.

G-FM TUNING
An FM station is correctly tune when the
meter needle is in the black area.

H-SIGNAL STRENGTH
indicates the relative strength of the signal
as received from the antenna.

LAM/FM TUNING KNOB

#033696

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J-MODE SELECTOR
(1) For all stereo programs use the STEREO or
STEREO REVERSE positions.

(2) All other positions are designed to handle
monophonic porgrams.
(3) .LOUDNESS: Frequency response is 'ad-
justed as volume is reduced to compensate for
hearing Iosses at low volumes.
(4) MONITOR:
TAPE 1: IN -- Monitor the program
being recorded on TAPE recorder 1.
OUT - Hear the program recorded on
TAPE recorder I.
MUST BE OUT TO HEAR ALL PROGRAM
SOURCES EXCEPT THE RECORDED TAPE.
TAPE 2: IN - Monitor the program
being recorded on TAPE recorder 2.
MUST BE OUT TO HEAR ALL PROGRAM
SOURCES EXCEPT THE RECORDED TAPE.
(5). FILTERS:
LF: IN - Low frequencies are reduced
to suppress unwanted rumble.
HF: IN - High frequencies are reduced
to suppress unwanted noise.

(6) MUTING FM:

IN - The muting is turned on. Weak
stations that may not override noise and
interference are suppressed by the muting.

OUT - The muting is turned off to
allow conventional FM tuning with the
noise and interference present. Use this
position to tune weak, noisy station.

(7) SPEAKERS:
MAIN: IN - MAIN speakers OFF.
OUT - MAIN speakers ON.
MUST BE OUT FOR
MUST BE OUT FOR NORMAL LISTENING.
REMOTE 1: IN - REMOTE speakers
connected to REMOTE SPEAKER I out-
put connectors are turned OFF.
OUT - REMOTE 1 speakers ON.
REMOTE 2: IN - REMOTE speakers

connected to REMOTE SPEAKER 2 out-
put connectors are turned OFF.
OUT - REMOTE 2 speakers ON.

MODE SELECTOR J

S'IRIO '3 "IV MONO

MUNITOE IllfRS

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MINING SPEAHRS OFF
FM MAIN MO I MOW?