powersoft M50Q HDSP+ETH, M30D HDSP+ETH, M28Q HDSP+ETH, M20D HDSP+ETH, M14D HDSP+ETH User Manual
M Series ampliers
M50Q / M50Q HDSP+ETH
M30D / M30D HDSP+ETH
M28Q / M28Q HDSP+ETH
M20D / M20D HDSP+ETH
M14D / M14D HDSP+ETH
CLIP
6dB
-18dB
SIGNAL
8
-
+32
dB
READY
8
-
+32
dB
TEMP
powersoft_M Series_uguide_en_v2.2
© 2012 Powersof t
User Guide v 2.2
June 2 012
DO000100 REV 01
Powersoft S.r.l. • Via Enrico Conti, 5 • 50018 Scandicci (FI) • Italy
+39 055 735 0230 • sales@powersoft.it • www.powersoft-audio.com
M Series
User Guide
1 Warnings. ............................................4
1.1 Impor tant Safety Instructions . ......................4
1.2 Warning Notices ..................................4
1.2 .1 Location. ........................................4
1.2.2 Precautions Regarding Installation. ..................4
1.3 Safety Rules . .....................................5
1.4 Speaker Damage ..................................5
1.5 Speaker Output Shock Hazard . ....................5
2 Front and Rear Panel Reference Figures. ................6
3 Welcome.............................................8
3.1 Introduction . .....................................8
3.2 The M Series . ....................................8
3.3 More Sound And Less Weight . .....................8
4 Installation............................................8
4.1 Unpacking ........................................8
4.2 Mounting . ......................................10
4.3 Cooling . ........................................10
5.12.3 Internal Processing Layout. ..................13
5.12.4 Lo c k i n g . ...................................14
5.12. 5 O n /O f f. ...................................14
5.12.6 Preset Management. ........................14
6 Remote Control. ....................................14
6.1 What Is Armonía? . ...............................14
6.2 Connecting The Device ...........................14
6. 2.1 N etwork. ..................................14
6.2.2 Discovery Device. ...........................16
6.3 Setup Device . ...................................17
6.3.1 Virtual Device. ..............................17
6.3.2 Real Device. ................................18
6.4 File Operations . .................................18
6.4.1 Binary Preset File .preset......................18
6.4.2 Input/Output Curves .icp, .ocp. ...............19
6.4.3 Channel Preset .chp. .........................19
6.4.4 Device preset le .pam. ......................19
4.4 Operating Precautions ............................10
4.5 Grounding . .....................................10
4.6 AC Mains Connection . ...........................10
5 Connections and Operation. ..........................10
5.1 Introduction . ....................................10
5.2 Front Panel Air Filters Access . .....................10
5.3 Front Panel Adjustments . .........................11
5.4 Front Panel Monitoring . ..........................11
5.5 Rear Panel . .....................................11
5.6 Connecting Audio Inputs . ........................11
5.6.1 MxxD Models. ..............................11
5.6.2 MxxQ Models. .............................12
5.7 Connecting Audio Outputs . ......................12
5.8 Lo-Z and 70V/100V Operations ....................12
5.9 Bridge Mode Connection . ........................12
5.10 Ethernet Port And Remote ID Selection . ...........12
5.11 V Ext . ..........................................12
6.4.5 System File .paw. ............................19
6.5 DSP remote operations ...........................20
6.5.1 Routing. ....................................20
6.5.2 Input Eq.....................................20
6.5.3 Output Eq.. ................................20
6.5.4 Limiters. ...................................21
6.5.5 Damping Factor Correction...................21
6.5.6 Locking.................................... 23
6.5.7 On Board Preset Operations................. 23
6.5.8 Copy And Paste Operations. .................24
7 Protection.......................................... 25
7.1 Turn On/Turn Off Muting . .......................25
7.2 Shor t Circuit Protection . ........................ 25
7.3 Thermal Protection . ............................ 25
7.3.1 Thermal Warning. .......................... 25
7.3.2 Thermal Shutdown. ........................ 25
7.4 DC Fault Protection . ............................ 25
5.12 DSP Features And Operations . ....................12
5.12.1 What Are DSP Operations?
What Are They For?. .........................12
5.12.2 DSP Features...............................12
powersoft_M Series_uguide_en_v2.2
© 2012 Powersof t
7.5 Input/Output Protection . ........................ 25
8 User Maintenance. .................................. 25
8.1 Cleaning . ...................................... 25
8.2 Service . ....................................... 25
Powersoft S.r.l. • Via Enrico Conti, 5 • 50018 Scandicci (FI) • Italy
+39 055 735 0230 • sales@powersoft.it • www.powersoft-audio.com
8.3 Dust Removal . ..................................26
9 Warranty............................................26
10 Assistance. ..........................................26
11 Ap p e n di x . ...........................................27
11.1 Setting An Ip Policy On Adau Based Devices With An
External Lantronix Tool ...........................27
11.1.1 DHC P. ....................................27
11.1.2 AUTOIP. ..................................27
11.1.3 St atic I P. ...................................27
12 Technical Specications. ..............................29
12.1 M14D ..........................................29
12.2 M14D HDSP+ETH . ............................. 30
12.3 M20D . ........................................31
12.4 M20D HDSP+ETH ...............................32
12.5 M28Q . .........................................33
12.6 M28Q HDSP+ETH . ............................ 34
12.7 M3 0 D . .........................................35
12.8 M30D HDSP+ETH . .............................36
12.9 M50Q . ........................................37
12.10 M50Q HDSP+ETH . ........................... 38
▶
2
▶
3
M Series
CAUTION
RISK OF ELECTRIC SHOCK
DO NOT OPEN
!
!
User Guide
1 Warnings
1.1 Important Safety Instructions
CAUTION: TO REDUCE THE RISK OF ELECTRIC SHOCK, DO
NOT ATTEMPT TO OPEN ANY PART OF THE UNIT EXCEPT
THE FRONT PANEL EXPRESSLY DESIGNED FOR AIR FILTER
ACCESS. NO USER-SERVICEABLE PARTS INSIDE. REFER
SERVICING TO QUALIFIED SERVICE PERSONNEL.
“WARNING: TO REDUCE THE RISK OF FIRE OR ELECTRIC
SHOCK, DO NOT EXPOSE THIS APPARATUS TO RAIN
OR MOISTURE. OBJECTS FILLED WITH LIQUIDS, SUCH AS
VASES, SHOULD NOT BE PLACED ON THIS APPARATUS”
registers, stoves, or other apparatus (including ampliers)
that produce heat.
▶
Do not defeat the safety purpose of the polarized or
grounding-type plug. A polarized plug has two blades with
one wider than the other. A grounding type plug has two
blades and a third grounding prong. The wide blade or the
third prong are provided for your safety. If the provided
plug does not t into your outlet, consult an electrician for
replacement of the obsolete outlet.
▶
Protect the power cord from being walked on or pinched
particularly at plugs, convenience receptacles, and the point
where they exit from the apparatus.
▶
Only use attachments/accessories specied by the
manufacturer.
▶
Unplug this amplier during lightning storms or when unused
for long periods of time. Refer all servicing to qualied ser vice
personnel. Servicing is required when the amplier has been
damaged in any way. For example if the power-supply cord
or plug have been damaged, if liquid has been spilled or
objects have fallen into the amplier, if the amplier has been
exposed to rain or moisture, if it has been dropped or if it
does not operate normally.
EXPLANATIONS OF GRAPHICAL SYMBOLS:
“TO COMPLETELY DISCONNECT THIS APPARATUS FROM
THE AC MAINS, DISCONNECT THE POWER SUPPLY CORD
PLUG FROM THE AC RECEPTACLE”
“THE MAINS PLUG OF THE POWER SUPPLY CORD MUST
REMAIN READILY ACCESSIBLE”
SAFEGUARDS: Electrical energy can perform many useful
functions. This unit has been engineered and manufactured to
assure your personal safety. Improper use can result in potential
electrical shock or re hazards. In order not to defeat the
safeguards, obser ve the following instructions for its installation,
use and servicing.
▶
Read these instructions.
▶
Keep these instructions.
▶
Heed all warnings.
▶
Follow all instructions.
▶
Do not use this amplier near water.
▶
Clean only with a dry cloth.
▶
Do not block any ventilation openings.
▶
Install in accordance with the manufacturer’s instructions.
▶
Do not install near any heat sources such as radiators, heat
“The Lightning Flash with arrowhead symbol within an equilateral
triangle is intended to aler t the user to the presence of uninsulated
“dangerous voltage” within the product enclosure that may be of
sufcient magnitude to constitute a risk of shock to persons”.
“The exclamation point within an equilateral triangle is
intended to alert the user to the presence of important
operating and maintenance (servicing) instructions in the
literature accompanying the product”.
1.2 Warning Notices
1.2 .1 Location
Install the amplier in a well-ventilated location where it will not
be exposed to high temperature or humidity. Do not install the
amplier in a location that is exposed to direct sun rays, or near
hot appliances or radiators. Excessive heat can adversely affect the
cabinet and internal components. Installation of the amplier in a
damp or dusty environment may result in malfunction or accident.
1.2.2 Precautions Regarding Installation
Placing and using the amplier for long periods of time on heat
generating sources will affect its performance. Avoid placing the
powersoft_M Series_uguide_en_v2.2
© 2012 Powersof t
Powersoft S.r.l. • Via Enrico Conti, 5 • 50018 Scandicci (FI) • Italy
+39 055 735 0230 • sales@powersoft.it • www.powersoft-audio.com
M Series User Guide
!
!
amplier on heat generating sources. Install this amplier as far as
possible from tuners and T V sets. An amplier installed in close
proximity of such equipment may experience noise or generic
performance degradation.
WARNING: To prevent re or electric shock:
▶
The ventilation openings must not be impeded by any item
such as newspapers, tablecloths, curtains etc; keep a distance
of at least 50 cm from the front and rear ventilation openings
of the amplier.
▶
Do not expose this amplier to rain or moisture.
▶
This equipment must not be exposed to dripping or splashing
liquids: objects lled with liquids, such as vases, must not be
placed on the amplier.
1.3 Safety Rules
▶
This device must be powered exclusively by earth connected
mains sockets in electrical networks compliant to the IEC 364
or similar rules.
▶
It is absolutely necessary to verify this fundamental
requirement of safety and, in case of doubt, require an
accurate check by qualied personnel.
▶
The manufacturer cannot be held responsible for damages
caused to persons, things or data due to an improper or
missing ground connection.
▶
Before powering this amplier, verify that the correct voltage
rating is being used.
▶
Verify that your mains connection is capable of satisfying the
power ratings of the device.
▶
Do not spill water or other liquids into or on the amplier.
▶
Do not use this amplier if the electrical power cord is frayed
or broken.
▶
Do not remove the cover. Failing to do so will expose you to
potentially dangerous voltage.
▶
No naked ame sources such as lighted candles should be
placed on the amplier.
▶
Provide a sectioning breaker between the mains connections
and the amplier. The suggested device is a 10 A/250 V AC
(230 V AC mains voltage) or 16 A/250 V AC (110 V AC mains
voltage), C or D curve, 10 kA.
▶
Contact the authorized service center for ordinary and
extraordinary maintenance.
recommendations.
Even if you reduce the gain using the amplier’s front panel
attenuation controls, it is still possible to reach full output power if
the input signal level is high enough.
A single high-power tone can damage high frequency drivers
almost instantaneously, while low frequency drivers can usually
withstand very high, continuous power levels for a few seconds
before they fail. Reduce power immediately if you hear any
speaker “bottoming out” - harsh pops or cracking distor tion that
indicate that the speaker voice coil or diaphragm is striking the
magnet assembly.
Powersof t recommends that you use ampliers of this power
range for more headroom (cleaner sound) rather than for
increased volume.
1.5 Speaker Output Shock Hazard
A Class D amplier is capable of producing hazardous output
voltages. To avoid electrical shock, do not touch any exposed
speaker wiring while the amplier is operating.
This manual contains impor tant information on operating your
Powersof t amplier correctly and safely. Please read it carefully
before operating your amplier. If you have any questions, contact
your Powersoft dealer.
1.4 Speaker Damage
Powersof t Class D ampliers are amongst the most powerful
professional ampliers available and are capable of producing
much more power than many loudspeakers can handle. It is the
user’s responsibility to use speakers suitable to the amplier and
to use them in a sensible way that will not cause damage.
Powersof t will not be held responsible for damaged speakers.
Consult the speaker manufacturer for power handling
▶
5
M Series User Guide
2 Front and Rear Panel Reference Figures
+32
dB
8
FIGURE 1: Front panel view for MxxD ampliers
-
TEMP
6dB
CLIP
-18dB
SIGNAL
READY
+32
dB
8
-
FIGURE 2: Front panel view for MxxQ ampliers
▶
6
M Series User Guide
AC mains power plug Air vents
Amplifier’s remote ID selection
PAT. PEND.
0
5
9
4
8
3
7
2
6
1
0
5
9
4
8
3
7
2
6
1
input
Channel 1
output
Channel 1
output
Channel 2
input
Channel 2
output
Channel 1
Link switch
(Channels 1 and 2)
Channel 1
Channel 1
Channel 2
Channel 2
Channel 3
Channel 3
input
output
output
input
input
output
Channel 4
Link switch
(Channels 1 and 2)
Link switch
(Channels 3 and 4)
output
Ethernet port
(DSP model only)
(DSP model only)
output
Channel 2
Made in Italy
Aux voltage
(DSP model only)
FIGURE 3: MxxD back panel view
(DSP model only)
Preset selection button
Ethernet port
(DSP model only)
(DSP model only)
5
5
6
6
4
4
7
7
3
3
2
2
8
8
9
9
1
1
0
0
5
5
6
6
4
4
7
7
3
3
2
2
8
8
9
9
1
1
0
0
Made in Italy
input
Channel 4
Aux voltage
(DSP model only)
FIGURE 4: MxxQ back panel view
(DSP model only)
Preset selection buttons
(DSP model only)
Selected preset LEDs
PAT. PEND.
AC mains power plug Air vents Amplifier’s remote ID selection
(DSP model only)
Selected preset LEDs
▶
7
M Series User Guide
mains cable
3 Welcome
3.1 Introduction
Congratulations on buying a Powersoft M Series amplier!
Powersof t is a leading company in the eld of high efciency
audio power management. The Powersof t Class D technology
has changed the way the world looks at professional audio
amplication: no other amplier’s performance comes close for
applications demanding high power and long term reliability.
Thanks to amazing reductions in heat output and weight, without
sacricing output powers, Powersoft ampliers can be used in an
unlimited range of PA applications such as opera houses, theaters,
churches, cinema, and theme parks.
3.2 The M Series
The M Series ampliers are specically designed for touring and live
applications. The ampliers in this series offer smaller dimensions,
lighter weight and the traditionally amazing sound quality and
reliability of all Powersoft products. The M Series ampliers have
power ratings suitable for a vast range of common applications
including 70V/100V distributed line systems.
power with maximum safety and an outstanding long term
reliability. Anticipating potential problems at the design stage
means your show always goes on!
4 Installation
4.1 Unpacking
Carefully open the shipping car ton and check for any noticeable
damage; the gure below ( FIGURE 5) shows the packing view.
Every Powersoft amplier is completely tested and inspected
before leaving the factory and should arrive in pristine condition.
In the unlikely event that you should encounter any damage,
please notify the shipping company immediately. Be sure to save
all packing materials for the carrier’s inspection.
Every M Series amplier box contains the following:
▶
1 M Series amplier
▶
1 x AC Mains cord with 3-pin plug 15 A for US, IEC ‘Schuko’
16 A for every other nation.
▶
1 x User Guide
3.3 More Sound And Less Weight
Class D technology based ampliers are highly efcient, delivering
greater power to speakers with reduced heat dissipation: typical
running efciency of output stages is 95%, with only 5% of input
energy dissipated as heat. This allows for smaller dimensions,
weight and power consumptions.
Contrary to conventional ampliers which achieve highest
efciency only at full rated power output, Class D efciency is
almost independent of output level. Music has an average power
density of 40% of its peak value; this means that other (nonclass D) ampliers can easily generate 10 times more heat than
Powersof t products for the same sound pressure level.
The units in the M Series are designed to work with lo-Z (from
4 Ω) and with 70V/100V distributed lines. They can deliver up to
1500 W per channel (at 4 Ω) or 3000 W in bridge mode on 8 Ω.
The HDSP+ETH versions of all ampliers in this series allow single
channel processing and remote control capabilities.
Powersof t ampliers deliver crystal-clear highs, and a tight, welldened low end: the most accurate reproduction of an audio
signal. Solid time proven design features ensure extremely high
performance in terms of super low total harmonic distortion,
optimal frequency response, high power bandwidth and damping
factor across a vast number of application scenarios. Powersoft’s
multi patented application of Pulse Width Modulation (PWM)
high frequency sampling techniques is just one of the many factors
contributing to the M Series high performance ratings across the
audio bandwidth.
amplifier
FIGURE 5:
manual
M Series box
The Show Always Goes On
The M Series offers complete protection against any possible
operation error. Every amplier in this series is designed to work
under a large range of possible conditions, delivering maximum
▶
8
M Series User Guide
M Series Power Ratings
Model name
M14D/M14D HDSP+ETH 700 W 360 W -- -- 140 0 W
2 channel ampliers
M20D/M20D HDSP+ETH 120 0 W 600 W 120 0 W
M30D/M30D HDSP+ETH 1500 W 900 W 120 0 W
4 channel ampliers
1
with a n external high pass lter for non H DSP models and with an HDSP preset with a high pass lte r and ou tpu t volt age limiter for models with HDSP
2
with a n external high pass lter and ou tput voltage limiter for non H DSP models and with an HDSP preset with a high pass lter and ou tput volt age limiter for models wi th HDSP
3
with a n external high pass lter for non H DSP models and with an HDSP preset with a high pass lte r for models with HDSP
M28Q/M28Q HDSP+ETH 700 W 360 W -- -- 140 0 W
M50Q/M50Q HDSP+ETH 1250 W 750 W 1000 W
FIGURE 6: M Series power ratings
single-channel mode Distributed lines Mono-bridge mode
4 � 8 � 70 V 100 V 8 �
1
-- 2400 W
2
2
150 0 W
125 0 W
3
3
3000 W
2500 W
Speakon device
output
Speakon cable
Stereo Mode
Speakon cable
Bridge Mode
CH 1
+
CH 1
-
CH 2
+
CH 2
-
Spk_ A+ Spk _A- Spk_ B+ Spk _B - Spk _C+ Spk_C- Spk_D+ Spk_D-
Spk_ A+ NC NC Spk _A- Spk_ B+ NC NC Spk_B-
FIGURE 7: Common connection modes with corresponding connection polarities
M Series Loads
Model can drive lo-Z loads
M14D
M14D HD SP +E TH
M20D
M20D HDSP+E TH
M30D
M30D HDSP+ETH
M28Q
M28Q HDSP+ETH
M50Q
M50Q H DSP+E TH
yes no no
yes no no
yes yes with an ex ternal high pass lt er no
yes yes with an HDSP preset with a high pass lte r no
yes yes with an ex ternal high pass lter and p eak limite r yes with an ex ternal high pass lt er
yes
yes no no
yes no no
yes yes with an ex ternal high pass lter and p eak limite r yes with an ex ternal high pass lt er
yes yes with a DSP preset with a high pa ss lter and an out put vo ltage limiter yes with a DSP preset wi th a hig h pass lter
yes with an HDSP preset with a high pass lte r and an output voltage
can drive a 70 V distribu ted line can drive a 100 V distributed line
limiter
CH 3
+
CH 3
-
yes with an HDSP preset with a high pass lte r
CH 4
+
CH 4
-
FIGURE 8: M Series load compatibility chart
▶
9
M Series User Guide
4.2 Mounting
All Powersoft ampliers are designed for standard 19” rack
mounting; there are four front panel holes and two rear-lateral
holes. In order to limit the risk of mechanical damages, ampliers
must be xed to the rack using both frontal as well as rear
mounting holes (see FIGURE 9)
mounting holes
mounting holes
mounting holes
air flow
FIGURE 9: Amplier rack mounting holes, front and back
4.3 Cooling
All Powersoft ampliers implement a forced-air cooling system to
maintain low and constant operating temperatures. Drawn by an
internal fan, air enters through the slots in the front panel and is
forced over all components, exiting at the back of the amplier.
The amplier’s cooling system features an “intelligent” variable-
speed DC fan which is controlled by heat sink temperature sensing
circuits: the fan speed will increase only when the temperature
recorded by the sensors rises over carefully predetermined values.
This ensures that fan noise and internal dust accumulation are kept
to a strict minimum. Should however the amplier be subject to
an extreme thermal load, the fan will force a very large volume
of air through the heat sink. In the ex tremely rare event that the
amplier should dangerously overheat, sensing circuits shut down
all channels until the amplier cools down to a safe operating
temperature. Normal operation is resumed automatically without
the need for user intervention.
and soldering techniques.
4.5 Grounding
There is no ground switch or terminal on the M Series ampliers.
All shield terminals of input connections are directly 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. Never disconnect the ground pin on the
AC mains power cord.
4.6 AC Mains Connection
The AC Mains connection is made via the IEC type connector on
the back of the amplier. Please make sure your AC mains power
source operates within the voltage limits indicated on this manual
(factory selected 115 V / 230 V ±15%).
open the lock and
insert the plug
GROUND
MAINS
lock the plug
FIGURE 10: Mains connector
Safety warning! Ground wires must be connected! Do not use
adapters that disable grounding.
5 Connections and Operation
Caution regarding heat escape should be exercised when
mounting M Series ampliers. Exhaust cooling air is forced out
through the rear of the chassis (see FIGURE 9); make sure there
is enough space around the back of the amplier for this air to
escape. M Series ampliers can be stacked one on top of the other
due to the efcient cooling system they are equipped with. There
is however a safety limit to be obser ved: in case a rack with closed
back panels is used, leave one rack unit empty every four installed
ampliers to guarantee adequate air ow.
4.4 Operating Precautions
Make sure the power switch is off before attempting to make any
input or output connections.
Make sure the AC mains voltage used is within the acceptable
operating voltage range specied in the M Series documentation
(factory selected 115 V / 230 V ±15%), depending on your country
mains. Damage caused by connecting the amplier to an improper
AC mains voltage is not covered by the warranty.
By using good quality input and speaker cables, the likelihood of
erratic signal behavior is reduced to a minimum. Whether you
make them or buy them, look for good quality wires, connectors
5.1 Introduction
This section provides information on amplier connection and
operation. For optimal amplier performance, it is important to
understand the meaning of the information that each M Series
amplier can provide regarding its status and conguration. This
information is available to the user via front panel indicators as
well as through specic LEDs the back of the unit (for DSP version
only). This chapter will break down all the front panel and back
panel functions. The remaining par t of the chapter will explain
how to correctly connect the amplier’s inputs and outputs.
5.2 Front Panel Air Filters Access
The blue front panel of all M Series ampliers can be removed
to access the air lters. This is useful when the air lters need to
be cleaned due to dust accumulating and clogging the lters thus
hindering proper air circulation vital for cooling purposes.
To remove the blue colored front panel:
▶
10
M Series User Guide
dB
+32
8
-
dB
+32
8
-
/
1. remove the two screws highlighted in FIGURE 11 with a
Philips screwdriver. The panel will easily separate from the
amplier exposing the sponge-like air lters.
To reposition the front blue colored panel:
CLIP
6dB
-18dB
SIGNAL
TEMP
READY
FIGURE 11: Screws to be removed in order to access the air lters
behind the front panel
1. before replacing the front panel, reposition the air lter on
the chassis by placing it on its designated area
2. reposition and tighten the two frontal screws.
5.3 Front Panel Adjustments
The front panel of all M Series ampliers has one stepped attenuation
knob for each channel. Turning the knob counterclockwise, the
user can select the amplier’s gain value in steps corresponding
to the following values: - ∞, 4, 14, 18, 20, 22, 24, 26, 28, 30, 32 dB.
LED Color Solid color Front panel label
Channel indicators
Channel output level has reached
clipping limits
Red
Shor t circuit protection has been
Channel output level is above - 6 dB of
Green
Green
Green Signal is present at amplier output SIGNAL
Green Channel is ready REA DY
Yel l ow
1
Should the temperature increase beyond 85° C, the LED will stay on and the channel
will be muted. The amplier will resume normal functioning and the LED will turn off
automatically when the temperature falls below 75° C.
Channel output level is above -18 dB
Output power is being reduced due
to heat sink temper ature rising above
OR
engaged
max ou tput level
of max outpu t level
Status indicators
1
75° C
CLIP
-6 dB
-18 dB
TEMP
FIGURE 12: Front panel LEDs chart
5.4 Front Panel Monitoring
The M Series front panel provides important information on the
state of the amplier. It is impor tant to know and understand the
meaning of every front panel indicator LED in order to have crucial
information on what’s going on and what could be going badly
with the amplier.
There are two sets of LEDs on the M Series front panel. There are
Channel indicators and Status Indicator LEDs. Channel indicators:
each channel has its own column set of 4 LEDs. The top LED
is red, and the following three are green. Status indicators: each
channel pair has one set of two green status indicator LEDs.
The function of both families of LEDs is summarized in the
following chart:
5.5 Rear Panel
The rear panel of the M Series with optional DSP has a 4-greenLED column per channel pair. The LED lights to indicate which
preset is active for that specic channel pair. Preset parameters
are dened, set and modied by connecting the M Series amplier
with optional DSP to a computer running the Armonía Pro Audio
Suite. In case of a 4-channel amplier (MxxQ models), the rst
LED column indicates the selected preset active 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 ampliers are networked together and it is
necessary to identify which amplier responds to which particular
network address.
5.6 Connecting Audio Inputs
5.6.1 MxxD Models
Audio input connections are made via two XLR connectors found
on the rear of the amplier. Signal looping (i.e. link thru) is possible
using the two XLR male connectors which are also found on
the back panel. The Link on/off button allows to connect input
channels 1 and 2 in parallel.
GND
GND
IN (+)
Balanced Input
FIGURE 13:
IN (-)
IN (+)
Unbalanced Input
Balanced and Unbalanced connections on input XLR
▶
11
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