Crest Audio UMA 4300, Owner'S Manual

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4
UMA 4300
+48V
LINK
LINE
HIGH
THRESHOLD
RCA SELECT
PHANTOM
POWER
+48V
PHANTOM
POWER
MUTE
CLASS 2 WIRING
LOW
OUTPUT
SELECT
POWER
ON
100 -120V
220-240V
FUSE
(summed) (summed)
INPUT
4 3
4 3
2 1
INPUTS
GAIN GAIN
EQ
MIN MAX MIN MAX MIN MAX MIN MAX MIN MAX OFF MAX MIN MAX
MIN MAX
MIX
CH. 4
+ _
G
+ _
G
+ _
G
+ _
G
+ _
G G AMP IN PRE OUT
OUTPUTS
MADE IN CHINA
DESIGNED AND ENGINEERED IN U.S.A.
A PRODUCT OF CREST AUDIO INC.
5022 Hwy 493
MERIDIAN, MS 39305
50/60Hz
65 WATTS
Consumo de energia 65Wh
100 -120V
T6.3AL/250V
220-240V
T3.15AL/250V
FUSE MUST BE CHANGED
FOR 100 -120V OPERATION,
TO T6.3AL/250V
FUSE MUST BE CHANGED
FOR 220-240V OPERATION,
TO T3.15AL/250V
25V
4 Ohm
100V
COM
70V
MUTE
ALL
TM
FUSE FUSE
FUSE
FUSE
Rear Panel
11
8
9
10 14 18 16 22 22
20
24 24
20 23
12 13 15 17 19 19 19 19 25
(8) IEC Inlet connector
This receptacle is for the IEC line cord (included) that provides AC power to the unit.
(9) Power Switch
This rocker switch applies mains power to the unit.
(10) Fuse Holder
The fuse is located within the cap of the fuse holder. If the fuse fails, IT MUST BE REPLACED WITH THE SAME TYPE
AND VALUE NOTED ON THE BACK OF THE UNITS FOR THE SELECTED LINE VOLTAGE IN ORDER TO AVOID
DAMAGE TO THE EQUIPMENT AND TO PREVENT VOIDING THE WARRANTY. If the amp repeatedly blows the fuse,
it should be taken to a qualified service center for repair.
WARNING: The fuse should only be replaced when the power cord has been disconnected from its power source!
(11) Line Voltage Selector Switch
The line voltage select should be checked and set to match the mains voltage before connecting and operating this unit. The
UMA 4300 can be operated at 100V-120 VAC or 220-240 VAC 50/60 Hz.
(12) Outputs
A direct output and transformer outputs are provided to allow proper interface between the amplifier and the loudspeaker
system. Connect the loudspeaker system to the appropriate output connector and the COM terminal. Connections for 4
Ohm, 25 Volt, 70 Volt and 100 Volt systems are available.
(13) Processing Insert Connector
The preamplifier output and power amplifier input and ground are brought to this connector allowing processing such as an
external equalizer to be inserted. The link switch (see below) bypasses this connection.
(14) Link switch
The link switch, by default connects the preamp output to the power amplifier input.
(15) Line Output
The balanced line output with level control can be used to extend the mixer to other power amplifiers, provide a monitor
output, or send background music to a phone system etc. The output source is selectable (see output source selector below)
(16) Output Source Selector
The signal sent to the line output can be selected to be either the main mix or the input 4 signal.
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