Series Hdsp+Eth Operation; Rear Panel Leds; Ethernet Port And Remote Id Selection; Ext - powersoft M30D HDSP+ETH User Manual

speakON
Single channel mode
connector
1+
2–
1–
2+
Biamp
Channel 1
speakON
connector
1+
2–
1–
2+
speakON
connector
Bridge mode
1+
2–
1–
2+
FIGURE 13: Loudspeaker wiring;
a) single channel mode, low impedance loudspeaker;
b) single channel biamplified w/ active crossover: CH1 high, CH2 low;
c) bridge mode.
In order to set the output in bridge mode:
f parallel the input by pressing on the link button;
f connect the loudspeaker to just one speakON: 2+ pin is the
positive and the 2– the negative;
f minimum load impedance shall be 8�.
9 M Series HDSP+ETH operation

9.1 Rear Panel LEDs

The rear panel of the M Series with optional HDSP has a
4-green-LED column per channel pair. The LED lights to indicate
which preset is active for that specific channel pair. Preset
parameters are defined, set and modified by connecting the M
Series amplifier with the optional HDSP to a computer running the
Armonía Pro Audio Suite. In case of a 4-channel amplifier (MxxQ
models), the first LED column indicates the selected preset active
12
a
b
CH1
CH2
c
PAT. PEND.
on channels 1 and 2, while the second column refers to the preset
selected for channels 3 and 4. A signal can be sent remotely to the
amp to force all preset LEDs to blink for 30 s; this can be useful in
a situation where many amplifiers are networked together and it
is necessary to identify which amplifier corresponds to a particular
network address.

9.2 Ethernet port and remote ID selection

The ID selection doesn't implement a communication function
but is necessary in order to recognize the ID of the amplifier when
remotely connected. This two digits number is set via the encoders
by choosing tens digits through the left hand rotary selector and
unit digit through the right hand rotary selector.
ID number 00 is not allowed.
9.3 V Ext
The "V Ext" plug, located on the rear panel of M HDSP Series
amplifiers, is used to supply the amplifier's internal Ethernet
controller with the minimum power required for remote on/off
switching operations. When the V Ext port is powered by an
external 9 V – 12 V DC (900 mA) power supply, the Ethernet
controller is enabled to listen for incoming connections such as
device power-on commands.
FIGURE 14: Ethernet port ID selector and VExt plug.

9.4 DSP features and operations

The main purpose of Digital Signal Processing (DSP) operations
is to allow the end user to program signal handling and processing
in order to:
f Select and handle the source signal;
f Process the signal for system operationM
f Process the signal to improve multi way speaker sound quality
and protect speaker drivers.
Furthermore, the DSP allows access to real-time information
on the internal device operation. This provides the end user with
reliable information on the internal state of the device as well as
better and faster amplifier response in terms of control.
9.4.1

DSP Features

The M Series amplifier HDSP is based on the DSP-D board
platform and the Analog Device ADAU 1701.
The DSP-D board's flexible design caters a wide range of users:
from the speaker manufacturer to the end user of rack amplifiers.
The DSP-D provides both a completely programmable DSP to the
Made in Italy