user manual
EMI
Professional
Professional Public Address System
EMMA-45
EMMA-60
EMMA-120
Mixing Amplifier
USER MANUAL
Before operating, please read this manual completely
FEATURES:
5 MIC inputs, 2 AUX inputs, 1 Record input, 1 Record output
Priority muting for chime and siren
Three levels of priority muting: 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 or DC 24V
Thermal, over load, short circuit protection and siren
>siren>chime
1
Left blank for memo
2
FRONT PANEL
1
1
2 3
4 5
6
7
9
8
.Led Power Indicator
10
11
7. Treble Control
2. Power Switch
8. Mic1, 2, 3 Volume Control
3. Led Level Meter
9. Mic4 / Aux1 Volume Control
4. Chime
10. Mic5 / Aux2 Volume Control
5. Siren
11. 6.3mm Jack Type Mic1 Input
6. Bass Control
NOTE: When all 5 LED level meters remain lit, sound is distorted. In such case,
adjusting each volume control button till LED 4 (+8dB) and LED 5 (+10dB) flash.
REAR PANEL
8
3
1
2
9 10 11
12 13 14
4
6
5
15
16
17
7
18
1. Mic2 : XLR Input
7. Fan Exhaust Window
14. Record output or
2. Mic2 : 6.3mm Input
8. AUX 1 / Mic4 Switch
Amplifier link
3. Mic3 : 6.3mm Input
9. Mic4 : 6.3mm Input
15. Record input
4. Mic3 : XLR Input
10. AUX 1 : Line Input
16. 24V DC Fuse
5. Output Terminals
11. AUX 2 : Line Input
17. AC Power cord
6. 24V DC Supply Input
12. AUX 2 / Mic5 Switch
18. AC Fuse
Terminal
13. Mic5 : 6.3mm Input
3
CONNECTION
MIC2
LOW
IMPEDANCE
SPEAKER
4 ohm, 8 ohm, 16 ohm
MIC3
100V, 70V, LINE
SPEAKER
+
一
24V
CD PLAYER
1
3
2
4
DISC
OPEN
TAPE RECORDER
MIC4
(6.3mm Socket )
00:35
MIC5
TUNE
(6.3mm Socket)
108.75
CD PLAYER
1
3
2
4
DISC
OPEN
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.
4
Tone and volume:
“BASS” and “TREBLE” knob provides the tone control of overall system.
MIC1, 2, 3, 4, 5 have separate volume control. MIC4 and AUX1 or MIC5 and AUX2 have a common
volume control knob.
MIC:
MIC inputs are balanced with phantom power. Two types of MIC inputs available: 6.3mm
(MIC1, 4, 5) and XLR (MIC2, 3). MIC4 & 5 inputs are compatible with AUX1 & 2 inputs.
“MIC4/AUX1” and “MIC5/AUX2” can be selected through the switches on the back panel. 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.
Chime / Siren: Pressing the “CHIME” / “SIREN” button will activate the chime or siren circuitry.
The LED indicator above the button will be lit up simultaneously. Pressing the “SIREN” button again
will stop siren broadcasting and the LED will be turned off.
Levels of priority muting:
MIC1, siren and chime have priority muting functions. MIC1
has the highest level of priority muting and can override all other input signals. Siren has the second
level. Chime has the third level and can override all input signals except for MIC1 and siren.
REC input / output:
REC input can connect to an external source (CD player, tuner,
cassette player, etc.) The volume of this input is not adjustable. While recording program signal can
send to REC input and at the same time signal send out to recording equipment through REC
output. REC output also can be used for monitoring the other input signals.
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) 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:
5
Model
EMMA-45
EMMA-60
EMMA-120
Rated Output
45W RMS
60W RMS
120W RMS
Output
Regulation Ratio
Less than 3dB from no-load to full load
Speaker Output
4Ω Balanced 70V
REC Output
Inputs
, 、100V
600Ω 1V
MIC1, 2, 3, 4, 5: 600Ω, 6mV Balanced
;REC IN:10KΩ,300mV
Line:50Hz-20KHz (±3dB);Microphone:100Hz-10KHz (±3dB)
AUX 1, 2: 10KΩ, 270mV unbalanced
Frequency
Response
Distortion
< 0.5% at 1KHz , 1/3rated power
S/N Ratio
MIC1, 2, 3, 4, 5: 70dB
AUX1, 2:
Tone Control
Bass:
75dB
±12dB at 100Hz
Treble: ±12dB at 10KHz
Protection
AC fuses, DC fuses, overload, short circuit
MIC1 overrides other input signals (Attenuation: 0 to -30dB)
Muting
Function
(
)(Attenuation: 0 to -30dB)
CHIME overrides other input signals(except MIC1,SIREN)(Attenuation: 0 to
SIREN overrides other input signals except MIC1
-30dB)
Power Supply
Requirements
AC220-240V/50-60Hz, DC24V
Power
Consumption
80W
100W
200W
Dimensions
430×360×88mm
430×360×88mm
430×360×88mm
Gross Weight
10.3kg
11.3kg
13kg
Net Weight
9.3kg
10.2kg
11.9kg
Specifications are subject to change without notice
CAUTION
For safety, when “Power switch” is off, please detach the power plug from the power point.
The apparatus shall not be exposed to dripping or plashing and no objects filled with liquids,
such as vases, shall be placed on the apparatus.
To reduce the risk of electric shock, do not remove the cover.
No user serviceable parts inside. Refer servicing to qualified service personnel.
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