Processor Loop; Tone Bypass - McIntosh C2500 Owner's Manual

How to Operate the C2500, con't
to make the Phono Trim Adjustments:
1. Select either the Phono MM or Phono MC Source
Input.
2. Select "PHONO CARTRIDGE, Moving Coil 400
Ohm" or "PHONO CARTRIDGE, Moving Mag-
net 50pF" as indicated on the Front Panel Display.
Refer to figures 76 and 77.
PHONO CARTRIDGE
Moving Coil: 400 Ohm
Figure 76
PHONO CARTRIDGE
Moving Magnet:
Figure 77
3. Set the desired phono cartridge loading value
(Ohms for a Moving Coil Cartridge or Capaci-
tance for a Moving Magnet Cartridge) that comes
closest to the Phono Cartridge Makers recom-
mended value.
24
After approximately 5 seconds the Front Panel Display
returns to indicate the Source Selection and Volume
Level.

Processor Loop

Press the Front Panel PROCESSOR Push-button to
activate the C2500 Processor Loop for the currently
selected Input Source. The LED above the PROCES-
SOR Push-button will illuminate. Refer to figure 50.
The C2500 remembers for each selected Input whether
the Processor Loop is active. To remove the Processor
Loop for the currently selected Input Source press the
PROCESSOR Push-button.
50pF
Notes: 1. If the Processor Loop is active and no ex-
ternal Processor is connected to the C2500,
sound will not be heard.
2. The audio signal present at the RECORD
OUT Jacks is unaffected by the external
processor loop.
Figure 50

Tone Bypass

Press the Front Panel Tone BYPASS Push-button to
remove the C2500 Tone Circuitry from the signal
path for the currently selected Input Source. The LED
above the TONE BYPASS Push-button will illumi-
nate. Refer to figure 50. The C2500 remembers for
each selected Input whether the Tone Control Circuit-
ry is deactivated. To reactivate the Tone Control for
the currently selected Input Source press the TONE
BYPASS Push-button.
Note. The audio signal present at the RECORD OUT
Jacks is unaffected by the Tone Control Cir-
cuitry.
Trim
Press the Front Panel TRIM Push-button to acti-
vate the C2500 Trim Functions. Use the Front Panel
OUTPUT 1/ OUTPUT 2 / ◄ MENU ► Push-buttons
to select the desired Trim Function and then use the
VOLUME/ADJUST Control to vary or make changes.
Refer to figure 50. The Remote Control TRIM and
LEVEL +/- Push-buttons may also be used. The LED
above the TRIM Push-button will illuminate dur-
ing Trim selection and adjustment. Approximately 4
seconds after Trim Function Selection and/or adjust-
ments have stopped the C2500 will switch off the
Trim Mode.
Mute
Press the MUTE Push-button, on the C2500 Front
Panel or on the Remote Control, to Mute the Audio at
the OUTPUTS Connectors (Main, Output 1, Output
2) except the REC OUTPUT Jacks. The Front Panel
Display will indicate the Input Source Name with the
word MUTE in place of the actual volume setting.
Refer to figure 78.