© 2006 Wohler Technologies Inc. ALL rights reserved
20
AMP2A
and
AMP2A-2S
User Manual P/N
821553
Rev-
B
AMP2A Interconnect Block Diagram
Section 3: Technical Information
Audio Amplifier PCB
919100-2
or
919164
Volume
Left
Side
Speaker
Right
Side
Speaker
Balance
Woofer
Speaker
Left
Bargraph
Driver PCB
919030L
Phase
Indication
PCB
919084
919030R
Right
Bargraph
Driver PCB
AMP2A Block Diagram
L
R
Phase
Indication
20-Segment
LED Bargraph
Level Meters
Rev-A (12/17/02)
Analog
In
(Unbalanced)
Channel A
(Left)
Loop-Thru
Output
Analog In
(Balanced)
Rear
Panel
Rear
Panel
R
L
Connector Legend
= XLR-F, 3-Pin, Female
= XLR-M, 3-Pin, Male
= RCA Phono, Female
Analog Input Impedances:
XLR =
200K
Ω,
Balanced
RCA =
47K
Ω,
Unbalanced
Headphone
Analog
In
(Unbalanced)
Loop-Thru
Output
Analog In
(Balanced)
Channel B
(Right)
DIP Switches
(Gain Calib.
and Display Mode)
Accessed through
top cover
