McIntosh MA352 User Manual

24
TRIM LEVEL
Source Components can have slightly different volume
levels resulting in the need to readjust the MA352
Volume Control when switching between different
sources. The MA352 allows the adjustment of levels
for each of the Source Inputs for the same relative
volume. To adjust the Trim Level for the currently
selected Input Source perform the following steps:
1. Select “INPUT TRIM, 0.0dB” as indicated on the
Front Panel Information Display. Refer to figure
65.
How to Operate the MA352, con’t
Figure 63
Output 2
On
Figure 64
Output 2
Off
Figure 50
30
125
500
2K 10K
BAL 1 15%
2. Adjust the Trim Level of each Input to match the
average volume level of the Input most frequently
listened to. The range of adjustment is ± 6.0dB in
half dB steps. Refer to figures 66 and 67.
After approximately 6 seconds the Information
Display returns to indicate the Source Selection and
Volume Level.
Figure 65
INPUT TRIM
0.0 dB
Figure 67
INPUT TRIM
-2.5 dB
Figure 66
INPUT TRIM
+4.0 dB
METER ILLUMINATION
The Meter Illumination of the McIntosh MA352 may
be switched On or Off by performing the same type of
operational steps as MONO/STEREO MODE on page
23:
1. Select “METER LIGHTS, On” as indicated on the
Front Panel Information Display. Refer to figure
68.
2. Switch Off the Meter Illumination by using the
Front Panel Controls or Remote Control Push-
buttons. Refer to figure 69.
After approximately 6 seconds the Information
Display returns to indicate the Source Selection and
Volume Level.
TUBE LIGHTS
The MA352 Vacuum Tubes Green Color Illumination
may be switched On or Off by performing the same
type of operational as Meter Illumination Lights ON
or OFF above:
1. Select “TUBE LIGHTS, On” as indicated on the
Front Panel Information Display. Refer to figure
70.
Figure 68
METER LIGHTS
On
Figure 69
METER LIGHTS
Off
Figure 70
TUBE LIGHTS
On

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