Specifications

Panel Descriptions
Rear Panel
REC OUT INPUT 4
R
L
CLASS 2 WIRING ACCEPTABLE
24V DC IN
OUTPUT
COM 4 8 25V 70V
+ –
INPUT 1
LINE PP MIC
MUTE SEND
ON OFF
PP
MIC
+
PHANTOM
POWER
INPUT 2
LINE PP MIC
INPUT 3
LINE PP MIC
TEL IN
LEVEL
0 10
MOH
LEVEL
0 10
SOURCE
SELECT
IN4 PLAYER
5
7
8
7. External DC Supply Input
Connections for an external 24V DC supply to
power the amplifier.
8. Speaker Outputs
Output terminals for connection to either 70V,
25V, or low-impedance speaker types.
9. Music-On-Hold Function (MOH)
Two MOH output types are available - a 1W/8-ohm
output and a 600-ohm transformer-isolated output.
The level control adjusts the MOH output volume.
The slide switch selects MOH output program
material from either the Media Player or Input 4,
neither of which is muted on this MOH Output.
10. TEL Input
This is a dedicated transformer-isolated TEL input
with input level control. This input will mute all other
inputs when active.
11. Mute Send
The ability of Input 1 to mute Inputs 2, 3, 4, and
Media Player can be enabled or disabled using
this switch.
12. Input 1- Balanced LINE/MIC
Input 1 will provide an electronically-balanced
input with selectable gain suitable for line-
level signals, including dry loop telephone
signals as well as balanced low-impedance micro-
phones. The associated slide switch sets the
input for LINE, MIC or PP (MIC with phantom
power). This input can be set to mute Inputs 2,
3, 4, and Media Player when active. This input
is always muted by the TEL Input.
13. Inputs 2 & 3 - Balanced LINE/MIC
Inputs 2 and 3 will provide an electronically-
balanced input with selectable gain suitable for
line-level signals, including dry loop telephone
signals as well as balanced low-impedance micro-
phones. The associated slide switch sets the
input for LINE, MIC or PP (MIC with phantom
power). These inputs are muted by Input 1 when
muting is enabled. These inputs are always
muted by the TEL Input.
14. Input 4 - Unbalanced AUX
Provides a high-impedance input through a
set of stereo combining RCA jacks. This input
is always muted by Input 1 when muting is
enabled. Input 4 can also be selected as the
source for the MOH Output
15. REC Output
These RCA connectors provide a signal-level
output of the program material provided to the
speaker.
16. AC Mains
AC mains voltage will be provided through an
IEC connector with fuse holder and detachable
3-conduction IEC cord. The nominal line voltage
is 120V AC, 60 Hz.
1415
16
11
12
13
10
9