McIntosh MA8000 Manuel du propriétaire télécharger pdf (Page 29)

How to Operate the MA8000, con’t

Connection Diagram separate sheet “Mc2B”), press

the Front Panel OUTPUT 2 Push-button or press on

the Remote Control the 2nd Push-button followed by

pressing the OUTPUT 2 Push-button to switch On or

Off the external Power Amplifier.

Passthru

When the MA8000 is connected together with a Mc-

Intosh Multichannel A/V Control Center or Surround

Decoder and has the PASSTHRU Mode activated, it

will automatically switch On when the A/V Control

Center or Surround Decoder is switched On. It will

indicate on the Front Panel Display “PASSTHRU”.

Refer to figure 73.

The MA8000 OUTPUT 1 / OUTPUT 2 Front Panel

Push-buttons are active when in the Passthru Mode.

The other Front Panel Controls and Push-buttons are

deactivated as long as the Passthru Mode is active.

Equalizer Controls

The MA8000 Equalizer has eight Frequency Controls

which will raise or lower by 12dB, the amplitude of

the band of frequencies centered at the frequency

marked above the controls. The center frequencies

of these controls are at 25Hz, 50Hz, 100Hz, 200Hz,

400Hz, 1,000Hz, 2,500Hz and 10,000Hz. Both Left

and Right Channels are affected. At the center detent

or flat position of the controls, the tone circuit compo-

nents are removed from the signal path.

The illustration to the right shows the fundamental

frequency range of acoustical musical instruments and

the human voice. It also shows the range of adjustment

Figure 73

PASSTHRU

Fundamental Frequencies of Acoustical Musical Instruments and the Human Voice

SOPRANO

CONTRALTO

TENOR

BARITONE

BASS

PICCOLO

FLUTE

OBOE

ENGLISH HORN

B CLARINET

BASS CLARINET

ALTO SAXOPHONE IN B

BASSOON

CONTRABASSOON

B TRUMPET

FRENCH HORN IN F

TENOR TROMBONE

BASS TROMBONE IN F

TUBA

MEDIUM

SMALL

LARGE

HARP

GUITAR

VIOLIN

VIOLA

CELLO

BASS

PIANO

STRINGS

KETTLE DRUMS

BRASS

WOODWINDS

SINGING VOICE

50Hz

200Hz

1kHz

10kHz

25Hz

100Hz

400Hz

2.5kHz

1 2 ... 24 25 26 27 28 29 30 31 32 33 34 ... 43 44

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McIntosh MA8000 Manuel du propriétaire Page 29

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