powersoft M30D - Audio and Network Connections; Loudspeaker Connection Guide

English
Connections
4
Make sure the power switch is off before attempting to
make any input or output connections.
By using good quality input and speaker cables, the like-
lihood of erratic signal behavior is reduced to a minimum.
Whether you make them or buy them, look for good quality
wires, connectors and soldering techniques.
4 : 1.Signal grounding
There is no ground switch or terminal on the M Series
ampliers. All shield terminals of input connections are di-
rectly connected to the chassis. This means that the unit’s
signal grounding system is automatic. In order to limit hum
and/or interference entering the signal path, use balanced
input connections.
In the interests of safety, the unit MUST always operate
with electrical safety earth connected to the chassis via the
dedicated wire in the 3-wire cable (refer to § 3 : 4. AC m ains
supply). Never disconnect the ground pin on the AC mains
power cord.
4 : 2.Signal input
Analog input is provided by means of two Neutrik XLR
connectors; refer to Panel C, p. 8 and Panel F, p. 10. Signal
polarity for XLR and TRS plugs is shown in Panel H, p. 12.
4 : 3.Line output
Line out is provided in two channels models – M14D,
M20D, M30D – via a couple of XLR connectors on the rear
panel (refer Panel C, p. 8). In DSP equipped models, the
output signal is pre-DSP, being a replica of the input signal.
4 : 4.Loudspeaker connections
Output terminals are hazardous: wiring
connection to these terminals require
installation by an instructed person and the
use of ready-made leads.
Use suitable wire gauges to minimize power and
damping factor losses in speaker cables.
The output connectors are Neutrik NL4MD speakON
located on the rear panel: refer to Panel C, p. 8 and Panel
F, p. 10. Each connector brings an output channel pair
making easy single ended and bridged loads.
The speakON pinout and the suggested connections are
shown in Panel I, p. 12. In the single channel mode wiring,
the 1+ pin corresponds to positive, the 1– to negative signal
polarity.
4 : 5.Ethernet connection
M Series HDSP+ETH models can be remotely controlled
via an Ethernet connection through a personal computer
and Powersoft Armonía Pro Audio Suite™ software.
Powersoft recommend the use of Ethernet Cat5 straight
through – patch – cables with pin/pair assignments TIA/
EIA-568-B, i.e. T568B.
4 : 6.Auxiliary voltage
On M Series HDSP+ETH models the auxiliary voltage
connector is used to enable remote management of the
DSP when the system is off.
When powered with an external 12 V
DC
(1 A max) the in-
ternal controller allows to congure the DSP via the Armonía
Pro Audio Suite software, even without AC mains supply.
Bridge mode connection is possible only in lo-Z operat-
ing mode: minimum load impedance shall be 8Ω. Bridging
of adjacent channels is possible for the following pairs:
channels 1 with 2 for all models and channels 3 with 4 for
MxxQ models.
In order to set the output in bridge mode:
 parallel the input by pressing on the link button;
 connect the loudspeaker to just one speakON: 2+ pin
is the positive and the 2– the negative.
Some models of the M Series ampliers are designed to
work with hi-Z loads in 70V / 100V distributed lines; refer to
TAB. 1 for compatibility.
Model 70V 100V
M14D no no
M14D HDSP+ETH no no
M20D yes w/external HPF no
M20D HDSP+ETH
yes w/internal
preset
no
M30D
yes w/external HPF
and peak limiter
yes w/external HPF
M30D HDSP+ETH
yes w/internal
preset
yes w/internal
preset
M28Q no no
M28Q HDSP+ETH no no
M50Q
yes w/external HPF
and peak limiter
yes w/external HPF
M50Q HDSP+ETH
yes w/internal
preset
yes w/internal
preset
TAB. 1: Hi-Z distributed lines compatibility chart.
18 | M Series