Preliminary Operations; Set-Up And Operation - Powersoft Mezzo 322 A Guia Del Usuario

EN

Preliminary operations

Package list
The box contains the following:
1x Mezzo amplifier
Block connectors
2x Type-A Brackets
2x Type-B Brackets
Screws (for attaching the brackets)
1x Mains power cable
1x L-shaped T8 key
1x Output plug retainer
1x Wall mount drilling template sheet
Location
Install your amplifier in a location that allows some exchange of air.
The Amplifier comes with mounting accessories for the following
mounting options:
On a shelf – The rubber feet allow you to set your amplifier on any
flat surface.
Custom mount – It's possible to custom design fittings for poles and
other applications using screws fitting the threaded holes in the
amplifier. These screws must not be longer than 8 mm. The safest
way to avoid mistakes is to use the provided screws.
Single 19" rack mount – With the two type-A brackets, it's possible
to mount a single amplifier in a 19" rack.
Tandem 19" rack mount – With one type-B bracket, it is possible to
mount two Mezzo amplifiers side by side and then mount them in a
19'' rack using the two type-A brackets provided.
Unscrew the indicated screws on the first Mezzo without removing
them completely. Set the type-B bracket in place by slotting
the screws into the keyholes and fasten them back in without
overtightening. Flip both amplifiers upside down. Match the holes
of the B bracket with those on the second Mezzo and secure with
the additional screws provided.
Apply the two type-A brackets by removing the screws on each side,
matching the resulting screw holes with those on the bracket, and
tightening back the original screws without overtightening them.
A
B
4 | MEZZO Series
Single half rack mount – With the two type A bracket, it's possible
to mount a single amplifier in a half width rack.
Surface mount – With two type-B brackets, it is possible to mount
an amplifier vertically on a wall, or upside down under a table or in
a ceiling. In the latter case, just flip the brackets upside down.
Surface mount (hidden brackets) – With two type-B brackets, it is
possible to mount a Mezzo on flat surfaces while hiding the brackets
underneath the amplifier.
Use the drilling template (included in the box) to mount at least two
screws on the wall, attach the brackets to the amplifier, then just
slide it onto the wall screws.
Cooling
When exposed to high ambient temperatures, Mezzo will start
automatically reducing the output power (depending on the type of load
and the duration of heat exposure) and the STATUS LED will start flashing
in yellow to display this limiter is active.
If the ambient temperature is extremely high (considerably above the
indicated limits), the over temperature will cause the amplifier to mute
all output channels, and the STATUS LED will show a solid red colour. The
outputs will automatically start operating again once the temperature
cools down.
The 320W models have an internal fan that does not exchange air with
the outside, but dissipates the heat inside the enclosure itself. Conversely,
the 600W models implement a temperature controlled forced-air
cooling system, where air enters from the front and exists at the back of
A the amplifier. The fan in the 600W amps has 3 modes:
STILL - if the temperature of the space surrounding the amplifier is ≤35°C
and the average output power is ≤1 W per channel.
WHISPER - if the average output is ≤4 W per channel. The fan noise at 1
m is ≤30 dBA in this mode.
REGULATED - Mezzo adapts the speed of the fan to maintain lower
temperatures. The fan noise at 1 m is ≤45 dBA in this mode
4 mm

Set-up and Operation

Power State
This amplifier does not have a power switch. It will turn on
automatically when AC power is connected and it will go to standby
mode if no signal is present for 25 minutes.
When an input signal exceeding -60dB relative to the level needed for
full power is applied, the amplifier will go back on within 2 seconds.
To disable the automatic standby function, 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
A
A
B
4 mm
B
B
B