Owner`s Manual - XTE Electronic
PUBLIC ADDRESS SERIES
BASIC SERIES
Owner’s Manual
EN_BasicSeries.doc
Rev1.0
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PUBBLIC ADDRESS SERIES
BASIC SERIES
BA5 – BA120B – BA240B
PRODUCT DESCRIPTION
Monophonics amplifiers and mixer presents:
• 2 MIC-AUX inputs (labelled with nos. 1 and 4) electronically balanced and commutable with
micro-switch.
• 2 MICRO inputs (labelled with nos. 2 and 3) electronically balanced
• 1 CD/TAPE input
• 2 treble and bass general controls
• 1 general master volume control
• 1 power indicator
• 1 PRE OUT output
• 1 TAPE OUT output
A 24 VCC potential is available on MICRO input, insertable through 2 micro-switch and channels
on the phonic line, the same potential for the eventual direct phantom power supply of electrettype microphones.
Audio potential outputs for loudspeakers of amplified series (BA120B and BA240B) are expected
for connection with constant impedance and voltage lines.
The whole electronic circulation has quality and safety working features.
Metal framing is suitable to be supported on surfaces (table, etc.) and is equipped with separated
stirrups for assembly in 19” rack; in this case it occupies 1 rack unit = 44mm for BA5 and 2 Rack
units = 88mm for BA120B and BA240B.
POSSIBLE USES
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conferences
places of worship
hotels
schools
airports
offices
•
supermarkets
restaurants
motorway restaurants
auditoriums
industries
gyms
POWER SUPPLY
The unit is expected to work with 230 VCA – 50/60 distribution system and with 24 VCC battery.
In case of power dysfunction, check the outside and inside protection fuses (for 24 VCC) and
eventually replace them with others of same calibration; if one of them burns out immediately, do
not go on and have check the unit by qualified personnel.
Take away plug from 230 VCA electric power socket and 24 VCC battery always, before removing
fuses and, in any case, open the unit framing.
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SIGNAL INPUTS AND OUTPUTS CONNECTION
On MIC-LINEA commutable channel 1 (DIN 5 poles) socket pin 5 is connected on a “Priority”
circuit; if a microphone (or a microphone base) with a priority consent is being connected, an
automatic softening of the other amplifier inputs (2,3,4,5) is achieved by pressing the speaking
key. On the above mentioned DIN (pin 4) socket a 24 VCC potential is available for eventual
amplified microphonic places.
It is possible to assemble a DIN-DON card as optional, which is activated with the priority function
(1 of Fig.4 ).
A 24 VCC potential for direct “phantom” power of electret-type microphones (on the same
balanced phonic line) could be carried to 2 and 3 MICRO (XLR) channels, through the multi-microswitch placed on the back; therefore, before connecting a microphone it should pay attention to
the model (if dynamic or electret). Do not insert 24 VCC in case of dynamic microphone; insert
them with electret microphone only.
4 JACK channel is MICRO/LINE commutable.
5 AUX channel (RCA-type pin) could be used for tape, CD, turner and radio microphone,
videoprojector audio, outside audio lines (to be protected by inserting a separator transformer),
message generators.
On same connector (ref. 9, fig.1), power unit input and pre output are available.
If no connectors are inserted to this socket, link between pre output and power unit input for
connection automatically happens (see fig. 3).
MAIN-IN is the power unit imput for audio signal came to outside device (e.g. Feedback
suppressor , ecc.); connector is 6,3 mm JACK-type stereo female (unbalanced audio).
PRE-OUT is the preamplifier output with an audio signal depending on Master volume regulator,
available to pilot an outside device (e.g. Feedback suppressor etc.); connector is 6,3 mm JACKtype stereo female (unbalanced audio).
ACOUSTIC SPEAKER CONNECTIONS (BA120B and BA240B only)
Unit is supplied with a crossbar output terminal board for connection with constant impedance and
voltage lines.
- CONSTANT IMPEDANCE LINES
4 and 8 Ohms terminals should be used.
In order to achieve the maximum efficiency of the system and to take precautions from amplifier
bad working, it is necessary to check the effective loading impedance of the lines. The total
speakers impedance should be equal or higher than pre-selected value for connection.
To get that, each loudspeaker should be without transformer and should be connected in series or
in series-parallel groups; In any case loudspeakers should also have the same power handling
(see fig. 2a).
- CONSTANT VOLTAGE LINES
100 V terminals should be used with each loudspeaker provided with line transformer and parallel
connected.
In order to achieve the maximum efficiency of the system and to take precautions from amplifier
bad working, it is necessary to check the effective total power handling of the loudspeakers that
has to be equal or lower than the RMS power value of used amplifier. It’s a good rule arranging a
10-20% safety margin on the amplifier power capability (see fig. 2b).
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SPECIFICATIONS: BA5 – BA120B – BA240B
TAPE inputs sensitivity
LINE inputs sensitivity
MICRO inputs sensitivity
Micro-balanced inputs impedance
Line-balanced inputs impedance
Bass control
Treble control
TAPE REC output level
PRE OUT output level
Frequency response (-3 dB)
Rating power distortion @ 1 KHz
- 4 dBm 490 mV
- 12 dBm 195 mV
- 60 dBm 0,8 mV
600 Ohm
220 KOhm
± 12 dB at 50 Hz
± 10 dB at 10 KHz
+ 0 dBm 775 mV
+ 0 dBm 775 mV
50-15.000 Hz
< 1%
NOISE RATIO 20÷20KHz weighted
master anticlockwise:
NOISE RATIO 20÷20KHz weighted
master clockwise:
EIN Micro(noise equal to the input)
20÷20KHz weighted RS=150ohm:
Power supply:
from CA mains
from battery
91dB
82dB
126dBA
230 V CA 50÷60 Hz
24 VCC
BA5
Consumption
Dimensions (W x H x D)
Weight (Kg)
15VA
482x44x100mm
1
BA 120B
120 W
180 W
BA 240B
240 W
360 W
RMS output power
I.H.F. power
Loudspeaker outputs:
Constant impedance
Constant voltage
Consumption
Dimensions (W x H x D)
Weight (Kg)
220 VA
482x88x256mm
7 Kg
EN_BasicSeries.doc
Rev1.0
4-8 Ohm
50 – 70 – 100 V
440 VA
482x88x340mm
14 Kg
-4-
COMMANDS AND FUNCTIONS (see fig.1)
1.
2.
3.
4.
5.
6.
7.
8.
9.
POWER ON/OFF : power switch.
LEVEL : volume for MICRO – LINE – TAPE inputs.
BASS: bass adjustment.
TREBLE: treble adjustment.
MASTER LEVEL: main volume.
ON: power signalling.
MAINS: 230 VCA supply mains socket.
FUSE: protection fuse of CA mains
MAIN IN/PRE OUT: unit power input and mixed output of amplifier “PRE” sector (for
connection, see fig. 3).
10. TAPE REC/PLAY: stereo output/input for recorder (tape 5 input).
11. MIC/LINE 4: balanced input adaptable to variable sensitivity.
12. MICRO/LINE: microswitch for changing input sensitivity on channel 1 and 4.
13. MICRO 2 and 3: balanced microphonic input.
14. PHANTOM: switch for connecting 48 VCC phantom supply power to inputs 2 and 3.
15. MIC/LINE 1: balanced input adaptable to variable sensitivity for line or microphone
equipped with “PRIORITY” command.
16. POWER OUT: output for loudspeaker lines.
17. BATT.: 24 VCC power supply input for outside battery.
FIG.1
1
2
3
4
5
MIC-LINE
MIC
MIC
MIC-LINE
TAPE
TONE CONTROL
MASTER
ON
0
10
LEVEL
0
10
LEVEL
0
10
LEVEL
0
10
0
10
0
LEVEL
LEVEL
BASS
TREBLE
ON
10
OFF
LEVEL
POWER
2
3
4
5
6
MAIN IN / RE OUT
JACK BAL INPUT
SLEEVE = GND
RING = PRE OUT
TIP = MAIN IN
S.N.
1
SLEEVE = GND
RING = COLD TIP = HOT +
MAINS
230 V~ 50÷60Hz
FUSE T
7
BATT
COM
50V
4Ω
70V
8Ω
100V
POWER OUT
24V
+ -
A/250V~
8
EN_BasicSeries.doc
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17
9
Rev1.0
10
11
12
14
13
14
12
15
-5-
Ω
4
0
100
70 V
50
8
4
0
100
70 V
50
8
Ω
Fig.2 _ LOUDSPEAKER CONNECTIONS
4Ω
Z tot= 8Ω
4Ω
4Ω
4Ω
4Ω
Z tot= 4Ω
4Ω
Ω
70V
70V
70V
4
0
100
70 V
50
8
4
0
100
70 V
50
8
Ω
Fig.2a _ Constant impedance lines
100V
100V
100V
Fig.2b _ Constant voltage lines
Fig.3
EN_BasicSeries.doc
Rev1.0
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EN_BasicSeries.doc
Rev1.0
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