Professional Public Address System
EMMA-45E
EMMA-60E
EMMA-120E
USER M A N U A L
Mixing Amplifier
Before operating, please read this manual completely
FEATURES:
5 MIC inputs, 2 AUX inputs, 1 line output
Priority muting for MIC1
5 LED level meter
Individual volume control for each input, master bass and treble control
Speaker outputs 100V, 70V and 4Ω
Power supply AC 220V-240V /50-60HZ
Thermal, over load, short circuit protection and siren
1
Left blank for memo
2
FRONT PANEL
4
2
1
1. Power Switch 6. Mic1, 2, 3 Volume Control
2. Led Power Indicator 7. Mic4 / Aux1 Volume Control
3. Led Level Meter 8. Mic5 / Aux2 Volume Control
4. Bass Control 9. Master Volume Control
5. Treble Control
NOTE:
the volume control knob till LED 4 (+8dB) and LED 5 (+10dB) flash.
When all 5 LED level meters remain lit, sound is distorted. In such case, adjusting
3
5
6
7 9
8
REAR PANEL
1 2
3
4
5
6 7 8 9
1. AUX 1 : Line Input 6. mute Control 11. Mic5 : 6.3mm Input
2. AUX 2 : Line Input 7. Mic1 : 6.3mm Input 12. 220V AC Power jack
3. Line output 8. Mic2 : 6.3mm Input 13. 220V AC Fuse
4. Output Terminals 9. Mic3 : 6.3mm Input
5. Fan Exhaust Window 10. Mic4 : 6.3mm Input
10 11 12 13
3
TUNE
CONNECTION
MIC2
MIC1
MIC3
MIC4
MIC5
4-16Ω output 70V
COM
SOEAKER OUTPUT
4-16Ω
70V
100V
SPEAKER
16Ω
8Ω
4Ω
CD PLAYER
DISC
OPEN
108.75
，，，，
MATCHING
TRANS
100V output
AMP
SOEAKER OUTPUT
4-16Ω COM
70V
MATCHING
TRANS
100V
4
Speaker output terminals are on the rear panel. The terminal under the label “COM” is COMMON. The
terminals under the labels “4Ω, 70V, 100V” are Hot. The connection ways shall be COM-4Ω / COM-70V /
COM-100V.
Normally the “rated power” (70V / 100V) output terminal is used in output connection. The connected
speaker should be with a transformer, and the gross power of speakers should be less than the rated
power of the amplifier.
“Rated Impedance”(4-16Ω) output terminal can be used when speakers are fixed closely, and the gross
impedance of speakers should be 4-16Ω.
Note:
Never connect two hot terminals (labeled 4Ω, 70V, 100V) together.
Only choose one pair of output terminals for speaker connection. The connection ways shall
be COM-4Ω / COM-70V / COM-100V.
Tone and volume:
MIC1, 2, 3, 4, 5 have separate volume control. MIC4 and AUX1 or MIC5 and AUX2 have a common
volume control knob.
MIC
: MIC1 has the highest level of priority muting function and can override all input signals.
Note: To prevent howling, keep volume level down to minimum before connecting microphone.
“BASS” and “TREBLE” knob provides the tone control of overall system.
MUTING FUNCTION
This model provides muting function. The inputs from MIC 2
2 are automatically muted by the input from MIC 1, as the signal from MIC 1 overrides other input signals.
The level of MUTE can be adjusted within
the range from 0 dB to -30 dB by
adjusting MUTE control button on the
rear panel. It is preset at -30 dB
before shipping from the factory.
、、、、
MIC 3
、、、、
MIC4
MUTE
0 dB -30 dB
、、、、
MIC5
、、、、
AUX 1 and AUX
PRECAUTION OF INSTALLATIOM
1. Do not block ventilation holes.
2. Do not use this amplifier if the power cord is frayed or broken.
3. The amplifier should not be placed in any of the areas:
1) poor ventilation
2) exposed to sunlight directly
3) high ambient temperature or adjacent to heat-generating equipment;
4) high humidity or heavy dust;
5
5) Susceptible to vibration.
4. Make sure the plug conforms to the socket.
5. For safety, please make grounding.
6. Short-circuit fault happens when short alarm rings during operation, In such case, switch off the
power immediately and check the faults before switching on again.
SPECIFICATIONS
Model EMMA-45E EMMA-60E EMMA-120E
Rated output 45W 60W 120W
Output regulation Less than 3dB, from off-load to full load
Speaker output
AUX output
Inputs
Frequency response
Distortion Less than 0.8% at 1kHz , 1 / 3 rated power
The ratio of
signal to noise
Tone
Protection AC fuse; DC voltage; overload; short-circuit.
:
Balanced 4Ω, 70V, 100V
600Ω more than 1V ( 0dB )
Mic1,2,3 ,4,5/ 600Ω, 3.5mV unbalanced
AUX1,2 / 10kΩ, 300mV unbalanced
50Hz-20kHz (±3dB)
Mic1,2 ,3,4,5 ：70dB
AUX1 and 2 ： 75dB
Bass : ±10dB at 100Hz
Treble: ±10dB at 10kHz
Muting function
Mic1 overrides other input signals with
0 to -30dB attenuation
Power
requirements
Power
consumption
Dimensions
Gross weight 17.5kg 21.3kg 22.6kg
Net weight 15.5kg 18.8kg 20.1kg
AC220-240V/50-60Hz
80W 120W 250W
419×306×88mm
6
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