McIntosh MAC 1900 Manuel d'utilisateur télécharger pdf (Page 13)

justed to optimum at the factory using precision test

instruments.

OUT . . . MUTING disconnected.

IN ... between station noise suppressed on FM.

SPEAKER

When the speakers have been connected to the

proper push connectors on the back panel, the push-

buttons turn the speakers ON or OFF.

If the program is to be heard from the main speak-

ers only, the REMOTE pushbuttons are pushed IN.

This turns off the remote loudspeakers.

if the program is to be heard from the remote

speakers only the MAIN pushbutton is pushed IN.

This turns off the main speakers.

To hear program from both main and remote

speakers, both the MAIN and REMOTE pushbuttons

must be in the OUT position.

MAIN

PUSHBUTTON OUT ... the program mate-

rial is heard from the MAIN speakers.

IN ... the MAIN loudspeakers are turned

OFF.

REMOTE 1 or 2

PUSHBUTTON OUT ... the program mate-

rial is heard from the REMOTE loudspeakers.

IN ... the REMOTE loudspeakers are turned

OFF. (These pushbuttons do not affect the

headphone jack.)

Balancing your Stereo

The performance and enjoyment of a stereo sys-

tem is greatly increased when the sound is properly

balanced. The balance of the stereo system is af-

fected by many things including room acoustics,

furniture placement, room shape, small differences in

loudspeakers, etc. Factors that effect proper stereo

balance are correct phase for both channels and

equal program loudness.

TO ADJUST PHASE

1. Press the MODE pushbutton to the MONO posi-

tion.

2. Turn the BALANCE control to the 12 o'clock

position.

3. Stand about 10 feet in front of and midway be-

tween the loudspeakers. The sound should ap-

pear to come from directly in front of you. If the

sound is not directly in front of you, reverse the

leads on one of the loudspeakers only. When

the sound comes from the midpoint between the

speakers they are in PHASE.

TO BALANCE LOUDNESS

1. Press the MODE pushbutton to MONO.

2. Play a familiar recording.

3. Turn the BALANCE control to the 12 o'clock

position.

While the program is playing, stand between

the two loudspeakers. Listen for a difference in

loudness between speakers. If there is then a dif-

ference in loudness turn the BALANCE control

toward the speaker that is not as loud. Adjust the

BALANCE control until the sound is balanced be-

tween both speakers.

Listening to Your Stereo

LISTENING TO A STEREO RECORD

Turn the INPUT SELECTOR to PHONO 1 or

PHONO 2, whichever is connected to the record

player you wish to hear.

Make certain the MODE pushbutton is in the

STEREO position.

Adjust the VOLUME control to desired volume.

LISTENING TO A MONOPHONIC RECORD

Turn the INPUT SELECTOR to PHONO 1 or

PHONO 2, whichever is connected to the record

player you wish to hear.

Push the MODE pushbutton IN to MONO.

Adjust the VOLUME control to desired volume.

LISTENING TO A STEREO TAPE RECORDER

Turn the INPUT SELECTOR to TAPE 1 or TAPE

2, whichever is connected to the record player you

wish to hear.

Set the MODE pushbutton to STEREO or MONO,

depending on the program on the tape.

Adjust the VOLUME control to desired volume.

Two tape recorders can be used with the MAC

1900. Recording and monitoring can be done with

both tape recorders.

To monitor while recording your tape recorder

must have separate record and playback heads and

electronics for each. The TAPE MONitor pushbutton

lets you monitor the quality of tape recordings made

during the recording process. When the TAPE MON-

itor pushbutton is in the IN position it will play the

sound from the tape as it passes the playback head,

a moment after it is recorded. The recording process

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McIntosh MAC 1900 Manuel d'utilisateur Page 13

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