powersoft DSP LITE User manual

Keep this manual
for future reference
©2020 Powersoft
DSP-Lite
DO000203.01 R00
USER GUIDE

powersoft_DSPLite_uguide_en_v1.3indd
Data are subject to change without notice.
For latest update please refer to the English
online version available on www.powersoft-audio.com.
Les données sont sujettes à changement sans préavis.
Pour la dernière mise à jour, s’il vous plaît se référer à la version anglaise
disponible en ligne sur www.powersoft-audio.com.
Esta información está sujeta a cambios sin previo aviso.
Para la última actualización por favor reérase a la versión disponible
en Ingles en nuestro sitio de internet www.powersoft-audio.com.
I dati sono soggetti a cambiamenti senza preavviso.
Per gli aggiornamenti si prega di consultare la versione inglese
disponibile online su www.powersoft-audio.com.
数据如有更改，恕不另行通知。
最新更新，请参考在线的英文版本：http://www.powersoft-audio.com
Данные могут быть изменены без предварительного уведомления.
Для более детальной информации используйте полное руководство на английском языке.
Электронная версия доступна на сайте - http://www.powersoft-audio.com.
Alle Angaben können jederzeit ohne vorherige Ankündigung geändert werden.
Den jeweils jüngsten Versionsstand nden Sie als englischsprachige Ausgabe
auf www.powersoft-audio.com.
Os dados estão sujeitos a alterações sem aviso prévio.
Para obter atualizações, consulte a versão em Inglês
disponível online em www.powersoft-audio.com.
Designed in Italy by Powersoft S.p.A. (via E. Conti, 5 - 50018 Scandicci, Firenze)
Factory 1: MW.FEP S.p.A. (Via Modena, 68 - 40017 San Giovanni in Persiceto, Bologna - Italy)
Factory 2: MW.FEP S.p.A. (Via Mario Stoppani, 23 - 34077 Ronchi dei Legionari, Gorizia - Italy)

DSP-Lite
DSP-Lite
Table of content 1
1.DSP-Lite 3
1:1.Welcome 3
1:2.Unpacking & checking 3
1:3.Disposal of the packing material 3
2.Important safety instructions 4
3.Electrostatic Discharge (ESD) 4
4.Regulatory information 5
5.Mechanical drawings 6
5:1.How to fit the mounting plate to the DSP-Lite processing
board 6
5:2.Components 7
6.Mounting kit for DigiMod heatsink plate 8
7. Mounting kit for LiteMod heatsink plate 9
8.Connections 10
7:1.PL2 connector 10
8:1.PL3 connector 12
8:2.PL4 pinout 14
8:3.Input/Output signal connectors 14
9.LED chart 14
9:1.Clip/Temp LED 14
9:2.Signal LED 14
9:3.Status LED 14
10.Power
management 15
10:1.How to permanently disable
the power management 15
10:2.LiteMod deep sleep mode 15
11.Software 15
11:1.Configuring the software environment 15
11:1.1.DSP-Lite ETH 15
11:1.2.DSP-Lite USB 16
11:2.Routing presets 17
12.Processing architecture 18
12:1.Input processing 18
12:2.Output processing 18
12:3.Auxiliary processing 18
13.Specifications 20
14.Appendix 21
A. Two-input configuration 21
A.1. Note on J3 and J4 jumpers 21
Table of content
DSP-Lite | 1

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2 | DSP-Lite

DSP-Lite 1
1:1.Welcome
Congratulations on your purchase of the Powersoft
DSP-Lite processing board.
We know you are eager to use the DSP-Lite board, but
please take a moment to read this user’s manual and safety
instructions. In case you have any questions, please do not
hesitate to contact your dealer or Powersoft.
DSP-Lite is a 2in/3out processing board designed for
LiteMod Series and DigiMod PFC2/PFC4 amp modules,
integrating an extremely compact interface panel compatible
with mono-in/link-out or stereo-in congurations.
The built-in USB port allows to access DSP-Lite
processing capabilities directly from the PC running
ArmoníaPlus software, to easily program and store up to 4
presets that can be selected by the end user.
Compatible with the Powersoft Integration Kit platform,
DSP-Lite represents a powerful, easy to use yet cost
effective tool for both the designer and the end user.
1:2.Unpacking & checking
Your Powersoft product has been completely tested and
inspected before leaving the factory. Carefully inspect the
shipping package before opening it, and then immediately
inspect your new product. If you nd any damage notify the
shipping company immediately.
1:3.Disposal of the packing material
The transport and protective packing has been selected
from materials which are environmentally friendly for dis-
posal and can normally be recycled.
Rather than just throwing these materials away, please
ensure they are offered for recycling.
DSP-Lite | 3

2
3
Important safety instructions
This amplifier module is intended to be installed inside
other devices and must be checked in the final product.
EXPLANATIONS OF GRAPHICAL SYMBOLS
The triangle with the lightning bolt is used to alert the
user to the risk of electric shock.
The triangle with the exclamation point is used to
alert the user to important operating or maintenance
instructions.
CLASS3
WIRING
CLASS3
WIRING
The CE-mark indicates the compliance with the low
voltage and electromagnetic compatibility.
Symbol for earth/ground connection.
Symbol for conformity with Directive 2002/96/EC
and Directive 2003/108/EC of the European
Parliament on waste electrical and electronic equip-
ment (WEEE).
Symbol for electrostatic discharge sensitive devices.
CAUTION
RISK OF ELECTRIC SHOCK
DO NOT OPEN
1. Read these instructions.
2. Keep these instructions.
3. Heed all warnings.
4. Follow all instructions.
5. Do not use this equipment near water.
6. Do not block any ventilation openings. Install in accordance with
Powersoft’s instructions.
7. Do not install near any heat sources such as radiators, heat regis-
ters, stover or other apparatus that produce heat.
8. Do not defeat the safety purpose of the polarized or grounding-
type plug.
9. Only use attachments/accessories specified by Powersoft.
10. Refer all servicing to qualified service personnel. Servicing is
required when the apparatus has been damaged in any way, such
as power-supply cord or plug is damaged, liquid has been spilled
or objects have fallen into the apparatus, the apparatus has been
exposed to rain or moisture, does not operate normally, or has
been dropped.
WARNING: TO REDUCE THE RISK OF ELECTRIC SHOCK, DO NOT
ATTEMPT TO REMOVE OR MODIFY ANY PART OF THE UNIT.
DO NOT EXPOSE THIS EQUIPMENT TO RAIN OR MOISTURE,
DRIPPING OR SPLASHING LIQUIDS. OBJECTS FILLED WITH
LIQUIDS, SUCH AS VASES, SHOULD NOT BE PLACED ON THIS
APPARATUS.
CLASS3
WIRING
CLASS3
WIRING
Electrostatic Discharge (ESD)
Electrostatic discharge (ESD) is one of the most signi-
cant factors leading to damage and failure of a wide variety
of electronic components.
Poor handling can cause internal damage, which is
invisible. This internal damage can then cause electrical
failure or reliability problems.
It is recommended that all workstations where
Electrostatic Discharge Sensitive devices (ESDS)
and assemblies are handled outside of full static protection
packaging (i.e. within static control areas) should be pro-
vided with some form of ground conductive or dissipative
ooring.
4 | DSP-Lite

Regulatory information
FCC COMPLIANCE NOTICE
This device complies with part 15 of the FCC rules. Operation is subject
to the following two conditions: (1) This device may not cause harmful
interference, and (2) this device must accept any interference received,
including interference that may cause undesired operation.
CAUTION: Changes or modifications not expressly approved by the party
responsible for compliance could void the user’s authority to operate the
equipment.
NOTE: This equipment has been tested and found to comply with the
limits for a Class A digital device, pursuant to part 15 of the FCC Rules.
These limits are designed to provide reasonable protection against
harmful interference in a residential installation. This equipment gener-
ates, uses, and can radiate radio frequency energy and, if not installed
and used in accordance with the instruction manual, may cause harmful
interference to radio communications. However, there is no guarantee
that interference will not occur in a particular installation. If this equip-
ment does cause harmful interference to radio or television reception,
which can be determined by turning the equipment off and on, the user
is encouraged to try to correct the interference by one or more of the
following measures:
f Reorient or relocate the receiving antenna.
f Increase the separation between the equipment and receiver.
f Connect the equipment into an outlet on a circuit different from
that to which the receiver is connected.
f Consult the dealer or an experienced radio/TV technician for help.
WEEE DIRECTIVE
If the time arises to throw away your product, please recycle all the com-
ponents possible.
This symbol indicates that when the end-user wishes
to discard this product, it must be sent to separate col-
lection facilities for recovery and recycling. By separat-
ing this product from other household-type waste, the
volume of waste sent to incinerators or land-fills will be
reduced and natural resources will thus be conserved.
The Waste Electrical and Electronic Equipment Directive (WEEE Directive)
aims to minimise the impact of electrical and electronic goods on the en-
vironment. Powersoft S.p.A. comply with the Directive 2002/96/EC and
2003/108/EC of the European Parliament on waste electrical finance the
cost of treatment and recovery of electronic equipment (WEEE) in order
to reduce the amount of WEEE that is being disposed of in land-fill site.
All of our products are marked with the WEEE symbol; this indicates that
this product must NOT be disposed of with other waste. Instead it is the
user’s responsibility to dispose of their waste electrical and electronic
equipment by handing it over to an approved reprocessor, or by return-
ing it to Powesoft S.p.A. for reprocessing. For more information about
where you can send your waste equipment for recycling, please contact
Powesoft S.p.a. or one of your local distributors.
EC DECLARATION OF CONFORMITY
Manufacturer:
Powersoft S.p.A.
via E. Conti 5
50018 Scandicci (Fi)
Italy
We declare that under our sole responsibility the products:
Model Names: DSP-Lite
Intended use: Professional Audio Amplifier
Are in conformity with the provisions of the following EC Directives,
including all amendments, and with national legislation implementing
these directives:
f 2006/95/EC Low Voltage Directive
f 2004/108/EC Electromagnetic Compatibility Directive
f 2002/95/CE RoHs Directive
The following armonized standards are applied:
f EN 55103-1
f EN 61000-3-2
f EN 61000-3-3
f EN 55103-2
f EN 61000-4-2
f EN 61000-4-3
f EN 61000-4-4
f EN 61000-4-5
f EN 61000-4-6
f EN 61000-4-11
f EN 60065
Scandicci,
July 2014
Luca Lastrucci
Managing Director
For compliance questions only: [e-mail]
4
DSP-Lite | 5

5
Mechanical drawings
Pull out the locking spline.
5:1.How to fit the mounting plate to the DSP-Lite processing board
Push the locking spline in its
normal position and attach the
plate to the DSP board.
Tilt the mounting plate, pass the
locking spline through its hole and
t the plate to the DSP board.
FIG. 1: DSP-Lite (all dimensions in millimetres).
General Tolerance = UNI-ISO 2768-M
84
126
118
1,6
3
28
70
72
78
70
N. 2 HOLES
3,2
N. 4 HOLES
3,2
84
126
118
1,6
3
28
70
72
78 70
N. 2 HOLES
3,2
N. 4 HOLES
3,2
*
6 | DSP-Lite
1 2 3
PULL PUSH
TILT
FIT
MATERIAL
TREATMENT
DESCRIPTION
ITEM
DATE SCALE AUTHOR APPROV. GENERAL
TOLERANCES
UNI-ISO
2768-mK
ACCORDING WITH THE LAW, WE RESERVE THE PROPERTY OF
THIS DRAWING. IT CANNOT BE REPRODUCED OR OTHERWISE
MAKE KNOW TO OTHER COMPANIES OR COMPETITORS
WITHOUT OUR PERMISSION
DRAWING
CODE
WEIGHT
VOLUME
REV
--
REV.
01
DATE
-
DESCRIPTION
-
AUTHOR
-
SHEETS
A2
POWERSOFT S.p.A.
Via E.Conti, 5 - 50018 Scandicci (FI) - Italy
Tel. [phone] - fax [phone]
http://www.powersoft.it
1:1 1 / 1
0,000 kg
0,000 dm^3
-Disegni quotati schede DSPLE003 e DSPLE004
02 - - -
03 - - -
04 - - -
27/07/2020
72
84 36,5
O
3,2
DSPLE003
70
72
O
3,2
70
84
36,5
DSPLE004
MATERIAL
TREATMENT
DESCRIPTION
ITEM
DATE SCALE AUTHOR APPROV. GENERAL
TOLERANCES
UNI-ISO
2768-mK
ACCORDING WITH THE LAW, WE RESERVE THE PROPERTY OF
THIS DRAWING. IT CANNOT BE REPRODUCED OR OTHERWISE
MAKE KNOW TO OTHER COMPANIES OR COMPETITORS
WITHOUT OUR PERMISSION
DRAWING
CODE
WEIGHT
VOLUME
REV
--
REV.
01
DATE
-
DESCRIPTION
-
AUTHOR
-
SHEETS
A2
POWERSOFT S.p.A.
Via E.Conti, 5 - 50018 Scandicci (FI) - Italy
Tel. [phone] - fax [phone]
http://www.powersoft.it
1:1 1 / 1
0,000 kg
0,000 dm^3
-Disegni quotati schede DSPLE003 e DSPLE004
02 - - -
03 - - -
04 - - -
27/07/2020
72
84 36,5
O
3,2
DSPLE003
70
72
O
3,2
70
84
36,5
DSPLE004

5:2.Components
Code Type Description
1PL2 IDC 34 pin Channel 1&2 input connector
2PL3 IDC 34 pin Channel 3&4 input connector
3D7, D8,
D9, D10 LED Preset LEDs
4SW1 Switch Preset selector / power management
5PL1 —Programming connector (RESERVED)
6a —RJ45 Programming connector (DSP-Lite ETH)
6b —USB-B Programming connector (DSP-Lite USB)
7a — XLR M Through (line output) connector
7b —Combo
Jack - XLR* Input signal connector
8—Combo
Jack - XLR Input signal connector
9R60 VCA Volume potentiometer
10 PL4 Molex
22-01-2031 Optional LEDs connector
11 D1 LED Status LED
12 D2 LED Signal presence / limiting
13 D3 LED Signal clipping / temperature
*Stereo versions only
FIG. 2: Example of connection: DSP-Lite with LiteMod amp module.
80 43.5
230
CB000601.00
DSP-Lite | 7
1 2 3
4
6a
5
7a
9
10
11
12
13
8
1 2 3
4
6b
5
7b
9
10
11
12
13
8

KTDSPL01 kit DSP-Lite for DigiMod heat sink
Code Quantity Description
1ME001049.00.00 1 DSP-Lite shield 78x126 mm
2DSPL0001 1DSP-Lite processing board
3ME001036.00.01 1 DSP-Lite Aluminium plate 78x126 mm
4GU000075 1DSP-Lite plate gasket
5VI000289 4 M2.9x9.5 screw DIN 7981
6VI000092 4 M3 Hex spacer 9 mm height
7CB000601.00 1 34-pin IDC at cable for DSP-Lite
8VI000104 4 M3x16 screw ISO 7380
6
Mounting kit for DigiMod heatsink plate
*
(*) General Tolerance = UNI-ISO 2768-M
126 42
118
78 70
N. 4 HOLES
3,2
126 42
118
78 70
N. 4 HOLES
3,2
8 | DSP-Lite
1
2
3
4
6
7
5
8
Available for DSP-L USB and ETH

7
Mounting kit for LiteMod heatsink plate
*
(*) General Tolerance = UNI-ISO 2768-M
96
77
R 5,5
434
449
43,5 3
N. 4 HOLES
5,2
DSP-Lite | 9
Only available for DSP-L USB

PIN# Name IN OUT POWER Range Scale
factor Impedance Tolerance Description
1SDPWS Active High,
Logic output 0-5 VDC
10 � Power Supply Shut Down
2RESERVED
3RESERVED
4RESERVED
5GND Ground
6 OUT 1 + 
Unbalanced
2.05 VRMS Absolute Max output
Balanced
4.1 VRMS Absolute Max output
27 � Channel 1
Positive Balanced output
7 OUT 1 – 
Unbalanced
2.05 VRMS Absolute Max output
Balanced
4.1 VRMS Absolute Max output
27 � Channel 1
Negative Balanced output
8GND Ground
9VOUT1MON 20 V/ V 4.5 k� Channel 1
Output Voltage Monitor
10 PROTECT1 
Level 1
(4 to 5) = not in Protection
Level 0
(0 to 1) = Protection
330�
Channel 1
Output Stage Protection
Monitor
11 IOUT1MON 8.35
A/V 4.5 k� Channel 1 Output Current Monitor
12 TEMPMON12 0 – 5 V 7 k� NTC sensor tap input
13 +12VDCIN +12 VDC input
(250 mA max current draw) ±5% (same as pin 22)
14 -12VDCIN –12 VDC input
(40 mA max current draw) ±5% (same as pin 21)
15 MUTE Active Low,
pulled to GND
CH1 and CH2
Output Stage Mute
16 +VCCMON +7. 5 V DC 4.5 k� Rail Bus Positive Monitor
17 -VCCMON –7.5 VDC 4.5 k� Rail Bus Negative Monitor
7:1.PL2 connector
This connector interfaces the DSP-Lite to Powersoft
amp modules featuring the IDC 34 pin connector.
The PL2 connector is the default input/output connector,
meant to be used in two-channel applications or for driving
the MF & HF ways in three-channel applications.
The audio outputs in the PL2 connector are optimized
for high performances (115dB SNR).
Table continues on the next page...
Connections 8
DSP-Lite | 10

PIN# Name IN OUT POWER Range Scale
factor Impedance Tolerance Description
18 -VCCMON –7.5 VDC 4.5 k� Rail Bus Positive Monitor
19 +VCCMON +7. 5 V DC 4.5 k� Rail Bus Negative Monitor
20 MUTE Active Low,
pulled to GND
CH1 and CH2
Output Stage Mute
21 -12VDCIN –12 VDC input
(40 mA max current draw) ±5% (same as pin 14)
22 +12VDCIN +12 VDC input
(250 mA max current draw) ±5% (same as pin 13)
23 TEMPMON12 0 – 5 V 7 k� NTC sensor tap input
24 IOUT2MON 8.35
A/V 4.5 k� Channel 2 Output Current Monitor
25 PROTECT2 
Level 1
(4 to 5) = not in Protection
Level 0
(0 to 1) = Protection
330�
Channel 2
Output Stage Protection
Monitor
26 VOUT2MON 20 V/V 4.5 k� Channel 2
Output Voltage Monitor
27 GND Ground
28 OUT 2 – 
Unbalanced
2.05 VRMS Absolute Max output
Balanced
4.1 VRMS Absolute Max output
27 � Channel 2
Negative Balanced output
29 OUT 2 + 
Unbalanced
2.05 VRMS Absolute Max output
Balanced
4.1 VRMS Absolute Max output
27 � Channel 2
Positive Balanced output
30 GND Ground
31 RESERVED
32 RESERVED
33 RESERVED
34 SDPWS Active High,
Logic output 0-5 VDC
10 � Power Supply Shut Down
...continues from previous page.
DSP-Lite | 11

PIN# Name IN OUT POWER Range Scale
factor Impedance Tolerance Description
1SDPWS Active High,
Logic output 0-5 VDC
10 � Power Supply Shut Down
2RESERVED
3RESERVED
4RESERVED
5GND Ground
6 OUT 3 + 
Unbalanced
2.05 VRMS Absolute Max output
Balanced
4.1 VRMS Absolute Max output
27 �
Channel 3
Positive Balanced Input
(same as pin 29)
7 OUT 3 – 
Unbalanced
2.05 VRMS Absolute Max output
Balanced
4.1 VRMS Absolute Max output
27 �
Channel 3
Negative Balanced Input
(same as pin 28)
8GND Ground
9RESERVED
10 PROTECT3 
Level 1
(4 to 5) = not in Protection
Level 0
(0 to 1) = Protection
Channel 3
Output Stage Protection
Monitor
11 RESERVED
12 TEMPMON34 0 – 5 V NTC sensor tap input
13 +12VDCIN +12 VDC input
(250 mA max current draw) ±5% (same as pin 22)
14 -12VDCIN –12 VDC input
(40 mA max current draw) ±5% (same as pin 21)
15 MUTE Active Low,
pulled to GND
CH3 and CH4
Output Stage Mute
16 +VCCMON +7. 5 V DC Rail Bus Positive Monitor
17 -VCCMON –7.5 VDC Rail Bus Negative Monitor
8:1.PL3 connector
The PL3 connector suites three-channel applications for
driving the LF way.
The audio outputs in this connector are designed to
drive a twin load or a bridge tied load (BTL).
Table continues on the next page...
12 | DSP-Lite

PIN# Name IN OUT POWER Range Scale
factor Impedance Tolerance Description
18 -VCCMON –7.5 VDC Rail Bus Positive Monitor
19 +VCCMON +7. 5 V DC Rail Bus Negative Monitor
20 MUTE Active Low,
pulled to GND
CH3 and CH4
Output Stage Mute
21 -12VDCIN –12 VDC input
(40 mA max current draw) ±5% (same as pin 14)
22 +12VDCIN +12 VDC input
(250 mA max current draw) ±5% (same as pin 13)
23 TEMPMON34 0 – 5 V NTC sensor tap input
24 RESERVED
25 PROTECT4 
Level 1
(4 to 5) = not in Protection
Level 0
(0 to 1) = Protection
Channel 4
Output Stage Protection
Monitor
26 RESERVED
27 GND Ground
28 OUT 4 – 
Unbalanced
2.05 VRMS Absolute Max output
Balanced
4.1 VRMS Absolute Max output
27 �
Channel 4
Negative Balanced
Output
(same as pin 7)
29 OUT 4 + 
Unbalanced
2.05 VRMS Absolute Max output
Balanced
4.1 VRMS Absolute Max output
27 �
Channel 4
Positive Balanced Output
(same as pin 6)
30 GND Ground
31 RESERVED
32 RESERVED
33 RESERVED
34 SDPWS Active High,
Logic output 0-5 VDC
10 � Power Supply Shut Down
...continues from previous page.
DSP-Lite | 13

9
LED chart
8:2.PL4 pinout
Optionally connect one or two external high efciency
LEDs. Driving current is about 2 mA. Mates with Molex 22-
01-2031 housing and 08-50-0113 terminal.
Pin# Symbol Description
1–Standby LED cathode
(suggested: blue)
2+LEDs anode
3–Ready LED cathode
(suggested: green or amber)
8:3.Input/Output signal connectors
9:1.Clip/Temp LED
Color Solid ON
OFF System temperature OK, no signal clipping
YELLOW
High system temperature.
The DSP will lower the clipping voltage level (soft clip
limiter) to reduce the output power and limit the increase
of temperature.
RED Output signal clipping
9:2.Signal LED
Color Solid ON
OFF No input signal
GREEN Signal presence, output level in the linear range
YELLOW Input signal strong enough to engage one of the output
limiters (peak or RMS)
RED Input signal too high: less than 4 dB margin to cause the
input stage to hard clip the signal (i.e. high THD)
9:3.Status LED
Color Solid ON
OFF System down
GREEN System ready to play, auto standby mode disabled
CYAN System ready to play, auto standby mode enabled
BLUE System in standby mode: no signal detected in the latest
15 minutes
Analog input
XLR-M pinout
Pin 1 GND
Pin 2 HOT
Pin 3 COLD
Analog input
TRS Jack pinout
Tip HOT
Ring COLD
Sleeve GND
A
C
B
HOT
HOT
11
SS
22
RR
33
TT
COLD
COLD
GND
GND
Analog line output
XLR-F pinout
Pin 1 GND
Pin 2 HOT
Pin 3 COLD
HOT
11
22
33
COLD
GND
14 | DSP-Lite

Power
management Software
10
11
The DSP-Lite processing board implements a power
saving strategy to reduce power consumption and heat
build-up.
The power management feature can be activated/de-
activated by the user or even inhibited by the loudspeaker
manufacturer (see below).
By factory default the power management feature is
not active. By pressing the preset select push-button for
at least 3 seconds the user can toggle the power manage-
ment: when active, after 15 minutes of no input signal (input
level below -45 dBu) the DSP-Lite board enters a low power
operating mode (standby) and sends a signal to the power
amplier that turn off the output stages.
When the power management is active, the Status LED
turns cyan. In standby mode the status LED becomes blue
(refer §9:3.Status LED).
10:1.How to permanently disable
the power management
The power management can be permanently disabled
by shorting jumper J1 on the rear surface of the DSP-Lite
PCB. In this case, any long pressure on the preset button
has no effect.
11:1.Configuring the software environment
11:1.1.DSP-Lite ETH
DSP-Lite ETH can be remotely controlled via an Ethernet
connection through a personal computer and Powersoft
ArmoníaPlus software. Powersoft recommend the use of
Ethernet Cat5 straight through – patch – cables with pin/
pair assignments TIA/ EIA-568-B, i.e. T568B.
DSP-Lite ETH is set in AutoIP/DHCP by default, once
it is connected to PC’s network card will take a proper IP.
Before proceeding to discover the DSP-Lite ETH, check if
the network card you are using is enable on Communication
Manager.
1. Open ArmoníaPlus and click on the Armonía button in
the top left corner of the window.
10:2.LiteMod deep sleep mode
When connected to Powersoft LiteMod amp module,
the DSP-Lite processing board can force the system to turn
in deep sleep mode instead of standby mode.
In deep sleep mode the system consumption falls down
to 2 watt: both the output stages and the power supply are
switched off. The auxiliary power supply embedded in the
LiteMod amp module guarantees the system to turn back
operating when the input signal level exceeds -45 dBu.
This feature is not available for Powersoft DigiMod amp
module, since they don’t implement the auxiliary power
supply.
By default the deep sleep mode is not active. In order to
activate this feature (only available for LiteMod amp module)
the J2 jumper on the rear surface of the DSP-Lite PCB must
be shorted.
2.Click on the Option button and select the
Communication Manager tab.
3.Activate the proper network card.
4.Apply the changes: now Armonia is capable to
discover the connected device.
5. Click on the Match Tab and then click on “Discovery”
FIG. 3: ArmoníaPlus: communication manager.
FIG. 4:Unit embedding DSP-L discovered.
15 | DSP-Lite
short
to disable power
management
short
to enable LiteMod
deep sleep mode

In order to set static IP press on Change Address
Settings, choose Static as Addressing Mode and write
below a proper IP. Warning: changing these settings could
break communication with the remote device. Conrm the
setting by click on Apply Settings. The new static IP will be
applied immediately.
11:1.1.2.Networking troubleshooting
DSP-L cannot be discovered by Armonia Plus when
is set with a different subnet than network card where
is connected, in this case after you have a “Discovery”,
Armonia Plus reports that a connected device has an
incompatible IP address (software doesn’t able to determ
what kind product is).
11:1.1.1.Changing Network Settings
Drag and drop the DSP-Lite ETH just discovered
and double click on it for entering inside the processing.
Network Settings section is available by click on button in
the scheme view. Here you can get the current ethernet
status and change address settings.
Passing the mouse pointer over the allert message at
the right bottom, it will be shown the device IP. In order to
discover DSP-L you make compatible the network card
setting an IP at the same DSP-L subnet. Go to Network
Connection following this path:
Control Panel\Network and Internet\Network Connections,
Right click on the network card you are using and click
on “Properties”, in Networking tab nd the item “internet
Protocol Version 4 (TCP/IPv4), select and click on Properties.
Before to have a “Discovery”, remember to able the
network card with new IP settings in the communication
manager.
Once DSP-L is discovered you can change its IP
conguration (passing in Auto IP in case it was set in static
IP) and then restablish the network card with previous
settings.
16 | DSP-Lite

11:1.2.DSP-Lite USB
In order to access the DSP via the USB port of your
computer, the CP210x USB to UART Bridge Virtual COM
Port (VCP) drivers are required.
Freely download the drivers from the Silicon Labs
website: www.silabs.com > Products > USB bridge >
Software download > CP210x VCP Drivers:
https://www.silabs.com/products/mcu/Pages/USBtoUARTBridgeVCPDrivers.aspx
1. Once the driver has been properly installed, the
Windows operating system provides a new virtual
COM port with a high identication number.
2. Open ArmoníaPlus and click on the Armonía button in
the top left corner of the window.
3. Click on the Option button and select the
Communication Manager tab.
4. Activate the Serial Port communication and select the
proper COM port (usually the one with the higher ID).
5. Apply the changes: now Armonía is capable to
discover the connected device.
6. Click on the Match Tab and then click on “Discovery”
FIG. 5: ArmoníaPlus: communication manager.
FIG. 6: Unit embedding DSP-L discovered.
DSP-L must be initialized via ProManager Plus prior
to be discovered on ArmoniaPlus, please refer to
the ProManager Plus web page for further details
DSP-Lite | 17

11:2.Routing presets
Armonía Pro Audio Suite provides four routing preset
for the DSP-Lite processing board. These presets shall be
loaded BEFORE conguring the signal processing.
The available routing presets may change according
to the selected amp module; furthermore, some routing
presets require two amp module (same model) connected
to the same DSP-Lite. Refer to TAB. 1 for matching.
Preset
LiteMod
DSP
DSP
DSP
DSP
LiteMod HV
DSP
DSP
DSP
DSP
DigiMod 2004PFC2
DSP
DSP
DSP
DSP
DigiMod 3004PFC4
DSP
DSP
DSP
DSP
2-way
DSP
DSP
DSP
DSP
1 IN - 2 OUT
OK OK OK —
DSP
DSP
DSP
DSP
2 IN - 2 OUT
OK OK OK —
3-way
DSP
DSP
DSP
DSP
1 IN - 3 OUT
OK
2 amp modules
required
Output channel 3
reserved to LF
OK
2 amp modules
required
Output channel 3
reserved to LF
—OK
DSP
DSP
DSP
DSP
2 IN - 3 OUT
OK
2 amp modules
required
Output channel 3
reserved to LF
OK
2 amp modules
required
Output channel 3
reserved to LF
—OK
TAB. 1: Routing Presets.
Preset
LiteMod
DSP
DSP
DSP
DSP
LiteMod HV
DSP
DSP
DSP
DSP
DigiMod 2004PFC2
DSP
DSP
DSP
DSP
DigiMod 3004PFC4
DSP
DSP
DSP
DSP
2-way
DSP
DSP
DSP
DSP
1 IN - 2 OUT
11 biquad bands per output - 5 biquad bands per input —
DSP
DSP
DSP
DSP
2 IN - 2 OUT
11 biquad bands per output - 5 biquad bands per input —
3-way
DSP
DSP
DSP
DSP
1 IN - 3 OUT
2 amp modules required
8 biquad bands per output
5 biquad bands per input
—
11 biquad bands on output ch. 1&2
10 biquad bands on output ch. 3
5 biquad bands per input
DSP
DSP
DSP
DSP
2 IN - 3 OUT
2 amp modules required
7 biquad bands on output ch. 1&2
8 biquad bands on output ch. 3
2 biquad bands per input
—
9 biquad bands on output ch. 1&2
10 biquad bands on output ch. 3
5 biquad bands per input
TAB. 2:Input and output equalizers: available bands.
Please note that in 3-way presets, the third output drives
both CH3 and CH4 signal lines with the same signal, forcing
either a bridge mode conguration (see specic power
module BTL connection) or a “clone” conguration (two
loudspeakers driven with the same signal) on the module
connected to PL3.
Peak and RMS limiters settings in Armonía are related
to a single output, so when BTL connected, actual output
voltage will be twice the Armonía setting, and output power
will be four times the Armonía setting.
18 | DSP-Lite