Publicité
Les langues disponibles
Les langues disponibles
4
IN
3
4
OUT
2 IN 1
2
1
-10 dBV
threshold, the amplifier will stay active or wake up from standby
mode as necessary.
The auto-standby feature can be disabled via ArmoníaPlus, in this
STATUS
RESET
CAL
case, the amplifier will always stay active.
NETWORK
70V
25V
SIGNAL
100V
DSP and matrix configuration
4
IN
3
2
IN
2 IN 1
The amplifier comprises a comprehensive range of functions that
2
1
-10 dBV
can be setup in two ways.
• Automatic - without the use of any app or software.
• Advanced - via the software ArmonìaPlus or third-party API.
Automatic configuration
This is a very easy way to configure the amplifier that doesn't
require any software.
The automatic setup will set limiters so that a channel reaches the
STATUS
RESET
CAL
NETWORK
70V
maximum capacity of the power supply, with a 4 dBu balanced
25V
SIGNAL
100V
analog input (or -6 dBFS for Dante/AES67). This means that it also
4
IN
3
4
OUT
2 IN 1
adjusts the gain so that the amplifier has the gain needed for all
channels. The way to "assign power" is then simply done by
2
1
-10 dBV
adjusting the level of the content to the different channels.
It will also set the high-pass filters automatically. The cutoff will be
selected so that frequencies below the resonance frequency, as
STATUS
RESET
CAL
NETWORK
70V
well as frequencies that saturate transformers in Hi-Z loudspeakers,
25V
SIGNAL
100V
will be attenuated.
4
IN
3
2
IN
2 IN 1
Note! Automatic configuration is only possible, and repeatable,
when no amplifier settings and parameters have been manually
2
1
-10 dBV
altered. In the case of manual changes, it will still be possible to
trigger the auto configuration, but for verification and monitoring
purposes only. The new measured values will not be saved until
settings and parameters are set back to their initial values or a
factory reset is done.
Factory Reset
To perform a factory reset, start by unplugging the mains cable.
Press and hold the push button on the amplifier's rear panel and
reconnect the mains cable while still pressing the button. Keep
holding the button (for about 10s) until the 'Signal' and 'Status'
LEDs light up in red and release. The 'Signal' and 'Status' LEDs will
NETWORK
flash in red three times confirming the factory reset. It is important
4
IN
3
to release the button while the 'Signal' and 'Status' LEDs are still on
in red and to see the flashing LEDs that confirm the reset.
2
1
Step 1 - Select the maximum voltage
NETWORK
4
IN
3
4
3
2
1
No channel will ever be assigned limiters that exceed the power
of the power supply. The main reason for selecting the maximum
voltage is to ensure that 25/70/100V loudspeakers will get the
power selected on their tapping, if a channel is using less power
than it can deliver.
If the application is 25V or 70V, then there is a risk that the limiters
get set too high if the connected load isn't requiring full power.
The maximum voltage can be selected with short presses on the
push button on the amplifier's rear panel. The selected voltage
will be displayed as follows:
70V
100V
Max Peak
Max RMS
LED
LED
Voltage
Voltage
Unlit
Lit
141.4 V
100 V
peak
Lit
Unlit
100 V
70.7 V
peak
Lit
Lit
35.4 V
25 V
peak
Unlit Unlit
Custom Settings
Please note that for low-impedance loads, it is not necessary to
select the maximum voltage.
ETH
3
I4 I3 I2 I1 5V
3s
6s
ETH
1
I4 I3 I2 I1 5V
3s
6s
ETH
3
I4 I3 I2 I1 5V
3s
6s
ETH
1
I4 I3 I2 I1 5V
STATUS
SWITCHED
CAL
70V
3s
25V
6s
SIGNAL
100V
CTRL +
CTRL +
4
OUT
3
CTRL
2 IN 1
-10 dBV
I4 I3 I2 I1 5V
STATUS
SWITCHED
CAL
70V
3s
25V
6s
SIGNAL
100V
CTRL +
CTRL +
2
IN
1
CTRL
2 IN 1
-10 dBV
I4 I3 I2 I1 5V
Description
Also works in mixed configurations of 100V
and Lo-Z speakers
rms
Also works in mixed configurations of 70V
and Lo-Z speakers
rms
Also works in mixed configurations of 25V
and Lo-Z speakers
rms
Cannot be selected from the rear panel.
Parameters have been manually set for
all channels via software and automatic
configuration is not available
MAINS
MEZZO 602 AD
2
Step 2 – Calibrate
MAINS
MEZZO 604 AD
4
3
2
Press the push button until the 'Signal' LED turns purple and release
while the LED is still on. This will trigger an automatic impedance
measurement for each channel.
between Lo-Z and Hi-Z loads and will automatically set high-pass filters,
limiters and gain for each channel. Please note that it may generate an
SPL exceeding 95 dB if the loudspeakers are sensitive enough.
Following the measurement procedure, the 'Signal' and 'Status' LEDs
will flash in green, indicating that the calibration was successful. Other
colours indicate different measurement results, such as detection of
open loads or output short-circuits in the outputs. A dedicated LED chart
MAINS
with the list of possible results is available further down in this manual.
MEZZO 602 AD
2
Network Reset and Operation Mode
MAINS
MEZZO 604 AD
4
3
2
Press the push button until the 'Network' LED turns cyan and release
while the LED is still on. This will reset the amplifier's network
configurations and put it in DHCP mode. In A+ and AD models, this
operation will also change the operation mode of the ethernet ports as
indicated by the 'Switched' LED:
• Lit: The default "switched mode" configuration. The two ports
are connected and will both work for Dante/AES67 and control/
monitoring of the amplifier's DSP. It means that only one Ethernet
cable is necessary for control and Dante audio. It also means that the
product can be inserted in a daisy chain of other Gigabit Ethernet
products as long as there is enough bandwidth.
• Unlit: The internal ethernet switch is disabled. The two ports are not
connected and the port on the right-hand side is assigned to Dante/
AES67 only. The port on the left is only for controlling/monitoring
the amplifier's DSP.
Routing and control via GPI
I/O Routing - 4-Channel models
All 4-channel models allow straight 4-in/4-out analogue routing,
where analogue inputs labelled 1 and 2 are a summation of balanced
and unbalanced inputs. When using unbalanced inputs only, these
will get a 12dB boost so that normal unbalanced sources will deliver
enough level to drive the amplifier to full power. When using both
balanced and unbalanced inputs simultaneously, the latter will get a
further -30dB reduction, so that priority is given to balanced sources.
I/O Routing - 2-Channel models
All 2-channel models have mixed two unbalanced inputs (labelled
1 and 2) and two balanced inputs (labelled 3 and 4), meaning that
balanced and unbalanced sources can be used.
I/O Routing - Dante/AES67 (A+ and AD models - A+ feature AES67 only)
In A+ and AD models, four additional Dante/AES67 inputs and outputs
are available. For these models, the source selection strategy is enabled
by default, with Dante/AES67 inputs having a higher priority over the
corresponding analogue inputs when audio signal is coming from both
source types simultaneously. The source selection and priority settings
can be configured from ArmonìaPlus or a third-party API.
VCA Operation via GPIs
In 4-channel models, the four GPI terminals located on the amplifier's
rear panel can be connected to 10kOhm passive potentiometers to
attenuate the output levels. Each GPI connector (I1, I2, I3, and I4)
corresponds to one output channel (1, 2, 3, and 4 respectively).
In 2-channel models, the output levels of channels 1 and 2 can be
attenuated with via GPI connectors I1 and I2, respectively.
4
IN
3
4
OUT
3
2 IN 1
1
-10 dBV
STATUS
SWITCHED
CAL
NETWORK
70V
3s
25V
6s
SIGNAL
100V
4
IN
3
2
IN
1
2 IN 1
1
-10 dBV
The amplifier will differentiate
STATUS
SWITCHED
CAL
NETWORK
70V
3s
25V
6s
SIGNAL
100V
4
IN
3
4
OUT
3
2 IN 1
1
-10 dBV
STATUS
SWITCHED
CAL
NETWORK
70V
3s
25V
6s
SIGNAL
100V
4
IN
3
2
IN
1
2 IN 1
1
-10 dBV
CTRL
EN
I4 I3 I2 I1 5V
CTRL +
CTRL +
CTRL
I4 I3 I2 I1 5V
CTRL +
CTRL +
CTRL
I4 I3 I2 I1 5V
CTRL +
CTRL +
CTRL
I4 I3 I2 I1 5V
MEZZO Series | 5
Publicité
