McIntosh MA352 User Manual

21
Setup, con’t
Power Mode
The MA352 incorporates an Auto Off Feature, which
automatically places the preamplifier into the Power
Saving Standby/Off Mode. This occurs approximately
30 minutes after there has been an absence of user ac-
tivity (includes changes to any of the Operation Func-
tions such as source selection, volume adjustment,
etc.) or absence of an audio signal. If it is desirable to
disable the Auto Off Feature perform the following
steps:
1. Press and hold in the INPUT Control to enter the
SETUP MODE. Refer to figure 3 on page 17.
2. Rotate the INPUT Control until “SETUP: Auto
Off, Enabled” appears on the Information Display.
Refer to figure 33.
3. Rotate the VOLUME (ADJUST) Control to select
Disabled. Refer to figure 34.
4. Press the INPUT Control to exit the Setup Mode.
Figure 33
SETUP: Auto-Off
Enabled
Figure 34
SETUP: Auto-Off
Disabled
Factory Reset
If it becomes desirable to reset all the adjustable set-
tings (Setup and Trim Settings) to the factory default
values, perform the following steps:
1. Press and hold in the INPUT Control to enter the
SETUP MODE. Refer to figure 3 on page 17.
2. Rotate the INPUT Control until “FACTORY RE-
SET, (Hold INPUT)” appears on the Information
Display. Refer to figure 35.
3. Press and hold in the INPUT Control until “FAC-
TORY RESET, In Progress!” appears on the Infor-
mation Display, then release the INPUT Control.
Refer to figures 36 and 37.
4. Press the Front Panel STAND/BY Push-button to
switch On the MA352.
Figure 37
FACTORY RESET
Completed!
Figure 35
FACTORY RESET
(Hold INPUT)
Figure 36
FACTORY RESET
In Progress

McIntosh MA352 Specifications

General

Total Harmonic Distortion	0.03%
Number of Channels	2
Speaker Impedance	4, 8 Ohms
Rated Power Band	20Hz to 20kHz
Headphone Output	Yes
Home Theater PassThru	Yes
Type	Integrated Amplifier
Input Impedance (Line)	20K ohms
Input Impedance (MM)	47K ohms, 50pF
Frequency Response	+0, -0.5dB from 20Hz to 20kHz
Signal to Noise Ratio	100dB
Preamplifier Inputs	1 Balanced
Variable Output	1
Phono Input	Moving Magnet
Vacuum Tube or Solid State	Hybrid (Vacuum Tube and Solid State)
Vacuum Tube Complement	2 x 12AX7A, 1 x 12AT7
Input Sensitivity	0.5V (Balanced)
Input Impedance	20K ohms Balanced, 20K ohms Unbalanced