This symbol indicates
the presence of
important directions for
use and information
that should be given
particular attention so
as to use the product
properly.
This symbol indicates
the presence of
“dangerous voltage”
that may cause the risk
of electrical shock. Pay
the utmost attention
and proceed
cautiously.
1. Follow carefully the attached documentation
and keep it for future reference
2. Comply with the warnings
3. Store the packaging and check that all material
is in excellent conditions.
4. Do not use water near the product, do not pour
water or any other liquid on the amplifier. Do not
to use it with wet hands or feet into the water.
5. Do not use next to heat sources such as
radiators, stoves or the like.
6. Check the integrity of the mains cable. Do not
tread on the cable and do not squeeze the plug.
7. Connect the plug to a socket equipped with
grounding. Do not camper the plug. If the plug
supplied is not consistent with your socket, please
apply to an electrician for its replacement.
8. Connect to supply mains with the same voltage
as indicated on the back of the amplifier.
9. Install the amplifier in compliance with the
instructions.
10. Do not obstruct the air ducts.
11. Disconnect the appliance in case of storm and
if unused.
12. Connect according to the instructions only.
▫ User’s Manual ▫ 3 ▪ 11
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13. Do not connect input signal higher than that
indicated in the manual.
14. Do not connect the amplifier output to the
input of another channel.
15. Do not connect any output of the amplifier to
power sources such as battery, voltage supply or
outlet, regardless of the amplifier is on or off.
16. Keep the volume controls to a minimum during
the amplifier switching on/off .
17. Do not remove the upper or lower cover: there
is a risk of electrical shock.
18. Do not try to self-repair the appliance, but
apply to qualified personnel.
19. Clean with a dry cloth only.
20. The product shall be handled by skilled
personnel in the following cases:
mains cable or plug damaged
Exposure of the product to rain or humidity
Some liquid entered inside the unit.
An object fell on the unit
The unit fell down and is damaged
The product does not work correctly or shows
21. A careful supervision is necessary if the
product is used in the presence of children or
inexpert adults.
22. This product could produce sound levels,
which cause damage to the hearing. Pay the
utmost attention and do not operate at high level
of volume or at an uncomfortable level for a long
time. Consult an audiometric specialist in case of
hearing loss or complaints.
2. Declaration of conformity
This device conforms to the requirements of the
EMC directive 2004/108/EEC, and the
requirements of the Low Voltage Directive
2006/95/EEC.
Standards Applied:
EN55103-1 (Emissions)
EN55103-2 (Immunity)
EN60065, Class I (Safety)
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a remarkable change of performance.
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3. User’s liability
3.1. Damages to the loudspeakers
Always check the peak and continuous power of
the loudspeakers.
This amplifier is extremely powerful and can be
potentially dangerous both for the loudspeakers
and for the persons.
Most loudspeakers may be easily damaged or
broken. Even if there is a gain reduction through
the attenuators on the amplifier’s front panel, it is
still possible to reach the maximum output power
if the input signal level is high enough.
3.2. Dangerous output voltage
The amplifier can generate hazardous output
voltage. Do not touch exposed cables of
loudspeakers with the amplifier in operation.
3.3 Radio interferences
A sample of this product has been tested and
approved to meet the requirements of the
Electromagnetic Compatibility Directive (EMC).
These requirements have been defined so as to
provide reasonable protection against dangerous
interference of electrical equipment. Whenever
this product has not been installed or handled
according to these guidelines, it might interfere
with other equipment such as radio receivers.
However, there is no guarantee that they should
not occur in a specific installation. Should this
equipment interfere with transceiver equipment
(such possibility can be checked by switching on
and off the device), the user should try to cancel
the interference by observing one or more of the
following measures:
Increase the distance between the device and
the receiver.
Connect the device to a plug linked to a
different circuit with respect to the one to
which the receiver is connected.
Redirect or move the receiver’s antenna.
Make sure that the unit concerned conforms
to the EMC immunity limits (CE-labelled). All
electrical equipment sold in the EC should be
approved as for what concerns protection
against electromagnetic fields, high tension
and radio interference.
Contact qualified personnel.
▫ User’s Manual ▫ 4 ▪ 11
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4. Introduction
Congratulations on choosing XTE device and
thanks for trusting us and our products. Your
device has been carefully planned in the smallest
details, starting with every part of its equipment till
final assemblage. All products XTE are made with
the main purpose of guaranteeing our clients’ full
satisfaction, thus we underline that the product
you have chosen uses the most advanced
technology.
An improper use of the device can compromise its
correct operation. Therefore we recommend you
to carefully and correctly use it.
Read this manual carefully as it contains essential
information for a safe use of your device.
4.1. Unpacking
Immediately inspect the package and its content
so as to check whether there are any signs of
damage. After unpacking check the product and
all parts, if you notice any damage inform your
dealer immediately.
It is advisable to save the packaging materials
even if the amplifier shows no sign of shipping
damage; you might have to return it to XTE or to
one of its dealers. Use the original package only,
which is the best way to protect the equipment
from shipping mishandling.
4.2. Assembly
Metal framing of all the XTE products is suitable to
be supported on a surface (table, etc.) and is
equipped with separated stirrups for assembly in
19” rack standard.
Pay particular attention during the installation; we
remind you that the devices should not be
installed in places with:
High temperatures
Dust and excessive humidity
Presence of intense magnetic fields
Water next to the component
Vibrations
Closed spaces inhibiting a proper ventilation
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5. Description
XTE has developed a series of mixer and
integrated amplifiers, with unique features and
technical specifications that excel these from
similar products. Their three bands equalizer for
each of the six inputs, guarantees clear sound
quality and a perfect intelligibility.
Monophonics amplifier and mixer of Evolution
Series Plus has 6 MIC/AUX inputs (labelled with
1-6), electronically balanced, adjustable for
medium-high level microphone and sources,
connected to input sockets for a simple use (as
later indicated), 1 SEND output and 1 RETURN
input to insert an external additional equipment,
for ulterior elaboration of the sound (equalizer,
level processor, etc.), in the circuit, 1 LINK IN
input, 1 PRE OUT output.
A 24 VCC potential is available for the 6 MIC
sockets, which could be inserted by a 6 way
micro-switch and conveyed on the phonic line, the
same potential for the eventual direct “phantom”
power supply of electret microphones.
It has a power indicator and led vu meters,
sensitivity controls (GAIN), tones (TREBLE,
MIDDLE, BASS), volume (LEVEL) separated to
each input and main volume control (MASTER).
Audio power outputs for loudspeakers of amplified
series (EV120P and EV240P) are arranged for
connection to constant impedance lines and
constant voltage.
This evolved version of Evolution Series, has
been improved with Noise Gate and Feedback
Suppressor processor to optimize the product
performance also in very difficult noise situations,
such as those that can be found in Places of
Worship and congress halls.
Noise Gate, complete with adjustable threshold of
activation, allows to minimize the reproduction of
noise when no microphones are used.
Feedback Suppressor is capable of reducing the
effects of acoustic feedback between the speaker
unit and the microphone.
This solution enables the best management of
any sound system by the use of a single product,
with a significant cost and space saving.
The whole electronic circulation has quality and
safety features in working; it is provided with
“earth-lift” switch (on the back).
Metal framing is suitable to be supported on a
surface (table, etc.) and is equipped with
separated stirrups for assembly in 19” rack; in this
case it occupies 2 U units = 88mm.
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6. Features
Mixer and Amplified Mixers of Evolution Plus
series, incorporate a set of features that make
them adaptable to any application.
Constant Impedance and constant Voltage
6 balanced Micro/Line XLR inputs complete of
2 stereo AUX RCA inputs
1 Stereo REC RCA output
3 band Equalizer for each input
Output level meter indicator
Arranged for 19” rack mounting in 2 unit
Noise Gate function with adjustable threshold
Integrated Feedback Suppressor processor
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outputs (Amplified Version)
selectable 24Vdc Phantom supply
space
PLUS
of activation
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▫ User’s Manual ▫ 5 ▪ 11
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7. Front Panel: Controls and Indicators
12
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GAIN
TREBLE
MIDDLE
BASS
CH1
456
3
28
1
0
10
LEVEL
GAIN
TREBLE
MIDDLE
BASS
CH2CH3CH4CH5CH6
456
7
9
3
28
1
0
10
LEVEL
GAIN
TREBLE
MIDDLE
BASS
456
7
9
3
28
1
0
10
LEVEL
GAIN
TREBLE
MIDDLE
BASS
456
7
9
3
28
1
0
10
LEVEL
5438761112109
GAIN
TREBLE
MIDDLE
BASS
456
7
9
3
28
1
0
10
LEVEL
GAIN
TREBLE
MIDDLE
BASS
7
9
1. TREBLE – MICRO/LINE and AUX inputs Treble tone control
2. GAIN – MICRO/LINE and AUX inputs gain control
3. MIDDLE – MICRO/LINE and AUX inputs Middle tone control
4. BASS – MICRO/LINE and AUX inputs Bass tone control
5. LEVEL – MICRO/LINE and AUX inputs level control
6. LEVEL METER – Output signal level led indicator
7. ON – Power on led indicator
8. MASTER – Main level control
9. OPEN – Open inputs status led indicator
10. CLOSE – Close inputs status led indicator
11. GATE – Noise Gate activation threshold control
12. POWER – Power on switch
8. Back Panel: Controls and Connectors
131415 161718
456
3
7
28
1
9
0
10
LEVEL
LEVEL METER
+3dB
0dB
-7dB
-15dB
ON
456
3
7
28
1
9
0
10
MASTER
NOISE GATE
INPUTS
OPEN
CLOSE
ACTIVATION
GATE
EV
240
PROFESSIONAL
AMPLIFIED MIXER
POWER
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S.N.
Made in Italy
MAINS
230 V~ 50÷60Hz
FUSE T A/250V~
TO REDUCE THE RISK OF
WARNING:
FIRE OR ELECTRIC SHOCK DO NOT EXPOSE
THIS EQUIPMENT TO RAIN OR MOISTURE.
TO PREVENT THE RISK OF FIRE HAZARD
REPLACE WITH SAME TYPE 250 VOLT FUSE.
+
-
PRE OUT
70V
50V
Ω4
COM
100V
POWER OUTPUT
FOR CONTINUED
GROUNDING
PROTECTION DO
NOT REMOVE SCREW
19202122242527
PRE OUT LINK IN RETURNSEND
GND LIFT
GND
COLD HOT +
GND
HOT +
EFFECT
LINK IN
EFFECT
PROCESS ON
BY-PASS
ANTILARSEN PROCESSOR CONTROLS
RECAUX 2AUX 1
OUTPUT
LEVEL
-10 0dB
PUSH
2
CH 6CH 5CH 4CH 3CH 2CH 1
6Hz
-
+
1Hz
15Hz
PUSH
2
1
3
1
3
SHIFT
FREQUENCY
BALANCED MICRO/LINE INPUT
PUSH
2
1
3
262623
XLR BAL INPUT
1 = GND
2 = HOT +
3 = COLD -
21
3
PHANTOM
24V
654321
CHANNEL
PUSH
2
ON
PUSH
2
1
3
PUSH
2
1
3
3
13. POWER OUT – Output connector for loudspeaker lines connection (Only for EV120P and EV240P)
15. PROCESS ON – Feedback Suppressor activation status led indicator
16. OUTPUT LEVEL – Feedback Suppressor output signal level control
17. - / + – Feedback Suppressor signal shift frequency sum or subtraction selector
18. SHIFT FREQUENCY – Feedback Suppressor signal shift frequency control
19. MAINS – AC 230V power supply socket, with incorporated protection fuse
20. GND LIFT – Selector for the connection of the electric ground with chassis
21. PRE OUT – Mixed balanced output of the amplifier “PRE” section
22. LINK IN – Unbalanced input, mixed and main level control dependent
23. EFFECT – Unbalanced In / out for external signal processor insertion
24. REC – Mixed stereo line output
25. AUX1 / AUX2 – Stereo line input
26. MICRO / LINE – Balanced input with variable sensitivity
27. PHANTOM 24V – 24V Phantom activation selector for CH1, CH2, CH3, CH4, CH5 and CH6 inputs
1
▫ User’s Manual ▫ 6 ▪ 11
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9. Power Supply
The unit is expected to work with 230 VCA –
50/60 Hz distribution system.
In case of power dysfunction, check the outside
protection fuses 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 always, before removing fuses and, in any
case, open the unit framing.
10. Connections
10.1. General criteria
In order to allow the equipment to work correctly,
it is advisable to comply with a number of general
criteria when making the connections:
Avoid positioning cables or microphones on
the cabinet of the equipment.
Avoid laying the signal lines parallel to the
power-supply lines. Keep a minimum distance
of 30/40 cm.
Position the input lines and the output lines at
a distance from one another.
In order to avoid acoustic feedback (the
Larsen effect), position the microphones out
of the angle of coverage of the loudspeakers.
10.2. Balanced Mic / Line Inputs
The 6 female XLR input sockets (26) for the mic /
line level signals are located on the rear panel of
the equipment. The figure Fig2. shows the
connections to these sockets. These inputs are
electronically balanced. The mic / line sensitivity
could be adjusted through the Gain control (2)
placed on the front panel.24Vdc “phantom” supply
could be joint to each socket (on the same
balanced phonic line), through the multi-micro
switch (27) placed on the back panel; therefore,
before connecting a microphone it should pay
attention to the model (if dynamic or electret). In
case of dynamic microphone do not insert 24 Vdc;
insert it with electret microphone only.
CH5 and CH6 socket cannot be used at the
same time of AUX 1 and AUX 2 sockets,
because electronic circuits and controls are in
common: CH5 with AUX 1, CH6 with AUX 2.
10.3. Pre Out
The Jack output socket (21) for the preamplified
signal are located on the rear panel of the
equipment. The figure Fig2. shows the
connections to this socket. This output is
electronically balanced.
▫ User’s Manual ▫ 7 ▪ 11
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10.4. Link In
The Jack input socket (22) for the eventual
connection from other external audio source,
directly “mixed” to preamplifier are located on the
rear panel of the equipment. The figure Fig3.
shows the connections to this socket. This input is
unbalanced and main level control dependant.
10.5. Effect
The Jack input sockets (23) for the eventual
connection of outside sound processing devices
(equalizer, level processor, etc.) in order to
improve sound reproduction quality and to correct
the environment response, or to satisfy particular
specifications requirements.
Mic / Line inputs are involved with the above
mentioned insert devices.
The figure Fig4. shows the connections to this
socket. This input is unbalanced.
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1 = GND
2 = HOT +
21
3
3 = COLD -
Fig1. XLR Bal Input / Output Pin-out
GND
COLD HOT +
Fig2. Jack Bal Input / Output Pin-out
GND
HOT +
Fig3. Jack Unbal Input / Output Pin-out
10.6. AUX 1 / AUX 2
The 2 couple of mono female RCA input sockets
(25) for the AUX sources are located on the rear
panel of the equipment. These inputs are
unbalanced.
10.7. REC
The couple of mono female RCA output socket
(24) for the REC preamplified signal and 3 band
EQ of each channel processed is located on the
rear panel of the equipment. This output is
unbalanced.
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10.8. Power Output
The device is provided with a multi-way power
output terminal strip for constant-voltage
distribution (50, 70, 100 V) and low impedance (4
Ohms ) systems (13).
Constant voltage lines
50, 70, 100 V terminals should be used with each
loudspeaker equipped with impedance-matching
transformers and parallel connected. This fact
makes the system easy to create and, if any of the
loudspeakers should be disconnected from the
line for any reason, the rest of the system would
continue to function properly. The figure Fig4.
shows the connections of the line to these
sockets.
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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.
Constant impedance lines
4 Ohms terminal 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 preselected value for connection.
To get that, each loudspeaker should be without
impedance-matching transformer and should be
connected in series or in series-parallel groups; In
any case loudspeakers should also have the
same power handling. The figure Fig5. shows the
connections of the line to these sockets.
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70V
+
-
70V
50V
W4
COM
100V
POWER OUTPUT
Z tot= 4WZ tot= 4W
+
50V
COM
-
W4
70V
100V
POWER OUTPUT
8W
70V70V100V100V
70V
50V
COM
100V
POWER OUTPUT
Fig4. Constant Voltage Lines
8W
Fig5. Constant Impedance Lines
+
-
W4
+
70V
50V
W4
COM
100V
POWER OUTPUT
100V
-
W4
W4
W4
W4
▫ User’s Manual ▫ 8 ▪ 11
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11. Protection Systems
In addition to the usual protection consisting of
fuses, these products are complete of different
protection devices in order to safeguard them
from possible risks of damage.
11.1. Power Output Short Circuit
Applying a lower loading impedance than the
rated value means requiring the equipment to
supply a power higher than it can do on a
continuous basis.
In order to avoid this problem, the units are
equipped with a circuit protecting them against
overloads that protects automatically.
The protection circuit will be tripped immediately
on the amplifier if any of the following cases
occurs:
Short circuit on one of the loudspeaker
outputs.
Loading impedance less than 50% of the
rated value.
power required of the loudspeaker system
connected to the constant-voltage lines higher
than the power that the amplifier is able to
deliver.
Overload conditions are signalled by the fact that
the unit doesn’t supply any amplified signal at the
power output.
The equipment will resume normal operation after
a power cycle as soon as the cause of the
overload has been eliminated.
11.2. Turn On / Turn Off Delay
A mute circuit with relay, with a delayed starting
up and immediate power turning off, has been
inserted in order to avoid the switch-on/turn-off
transients that may cause damage to the
loudspeakers.
11.3. Power Unit Over Temperature
The thermal protection is of the self-resetting type,
and is tripped when the equipment reaches an
excessively high temperature.
This may be due, for example, to the fact that the
ambient temperature is too high or to the
insufficient ventilation of the rack cabinet.
The equipment will resume normal operation as
soon as the cause of the temperature overload
has been eliminated.
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Fig6. Pre Out Internal Adjustment
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12. Advanced Functions
12.1. Noise Gate
A Noise Gate circuit has been inserted in order to
minimize the background noise on the output
when no signal is applied at the input. The
channel opening threshold could be adjusted
through the controls (11) located on the front
panel of the equipment. Internally bypassable by
jumper.
12.2. Feedback Suppressor
A Feedback Suppressor circuit has been inserted
in order to reducing the effects of acoustic
feedback between the speaker unit and the
microphone.
Working principle is based on frequency slipping
between the input signal and the output one,
avoiding the feedback between microphone and
speaker. It is possible to increase the output
power of a system reducing of about 10 dB the
LARSEN EFFECT action.
The shift of the frequency could be adjusted
through the controls (18-17) located on the back
panel of the equipment.
12.2. Pre Out Setting
Internal jumpers are provided to assign Pre or
Post Master Pre Out setting.
Thanks this internal setting it is possible to adjust
the Pre Out level by the Master control or make it
independent, following the system requirements.
From the factory, Pre Master setting is assigned.
The figure Fig6. shows the instructions to assign
the Pre Out Setting.
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PRE / POST
▫ User’s Manual ▫ 9 ▪ 11
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13. System SetUp (Step by Step)
The inputs of the mixer can accommodate a wide
range of sources including active paging stations,
dynamic microphones, DVD,CD and Mp3 players
and mixers.
The Preout outputs may be used to drive power
amplifiers, mixers, or mixer amplifiers.
The Power output may be used to drive constant
voltage or constant impedance speaker lines.
Each installation will require setting the
appropriate relative mix of levels between paging,
program sources and mic/line inputs for each line
or amplified outputs.
Because of the variation in levels between the
possible sources, the mixer offers a number of
gain stage adjustments and parameter tools so
you can set the correct levels for your application.
Setting up correct parameter structure through the
whole system is important to achieve optimal
results.
The following step by step procedure has been
devised to assist during the setup process.
Connect the speaker lines to the correct
power output socket.
Active the phantom supply by the dipswitch
(27) located on the back panel if electrect
microphones are used.
Ensure that all the Gains and Volume controls
are at minimum, and that the Tone controls
are flat.
Keep the master volume for each output
channel at about 10%÷20%
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Keep the input channels LEVEL (5) at about 5
Adjust each input channel GAIN (2) in order
Adjust GATE (11) in order to avoid the noise
Adjust the master volume and the input
Adjust the 3 band equalizer (1,3,4) for each
Set Output Level (16) at 0dB.
Set Shift Frequency (18) at 2 Hz with the
Adjust Output Level (16) until singing limit of
Insert processor with BY-PASS button (14).
Increase system volume and adjust frequency
Frequency value changes from case to case,
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(50%).
that the Level Meter (6) green led lit
continuously also with low input signal and
that the +3dB red led lit with strong input
signal.
gate activation cause background noise or
undesired signal but by the speaker voice or
input signal only.
channels LEVEL in order to obtain the
required sound pressure.
channel in order to obtain the best result with
each different input source.
button in + position (17) and exclude
processor by pushing BY-PASS button (14).
LARSEN EFFECT.
(18) to obtain the possible maximum volume.
so it is necessary to find the one giving best
results in the examined environment.
Alternatively passing from by-pass condition
to process on condition (14) in order to feel
the processor effectiveness.
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▫ User’s Manual ▫ 10 ▪ 11
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14. Technical Specifications
MODEL EV6P EV120P EV240P
Configuration 6 In/1 Out Mixer 6 In/1 Out Amplified Mixer 6 In/1 Out Amplified Mixer
Inputs
Outputs Pre Out 0dBu 120W @100-70-50V/4ohm 240W @100-70-50V/4ohm
Controls 3 band EQ, Gain and Level for each input; Master Level