Instruction manual

AMS-1027 AMPLIFIED SPEAKER STATION
1-5
REAR PANEL CONNECTORS AND SETTINGS
Please refer to Figure 1-4 to familiarize yourself with the rear panel features of the
AMS-1027 unit. The following sections describe the functions of each of the
various features found on the rear panel and are referenced, by letter, to Figure
1-4.
Figure 1-4: Rear Panel of AMS-1027
Power Connector
Attach a standard IEC-320 power cord between this connector and mains power
(100 - 240VAC, 50/60 Hz). The front panel power LED (6) will glow green to
indicate operating voltages are present.
XLR Connectors for Balanced Inputs and Loop-Through on
Channels A and B
These inputs are meant to receive standard analog audio signals. There are two
sections; Channel A (left) and Channel B (right), with each section comprised of
one standard input connector and one passive loop-through connector. Both the
input and loop-through connectors are configured for a balanced, high
impedance connection.
The “BALANCED IN” XLR connectors are panel mounted 3-pin females and
are internally terminated. The “LOOP-THRU” XLR connectors are panel
mounted 3-pin males and are unterminated (for “chaining” the signal to other
equipment). If unbalanced signals are applied to these connectors, they should be
connected between either pin 2 or pin 3 and pin 1. In that case, a jumper must
be added to connect the unused input (3 or 2) to pin 1. All balanced connections
are wired with Pin 2 “hot.”
Input Gain/VU Meter Level Adjust for Channels A and B
These recessed trim pots allow the adjustment of the left and right input gain
levels simultaneously with the gain calibration of the left and right VU level
AMS-1027
A
C
D
C
B
100-240-VAC
50/60 Hz 1.0A
A
B
C