powersoft Digimod 3004 PFC2, Digimod 3004 PFC4 User Manual

Digimod 3004 PFC2

©2019 Powersoft
DO000XYZ.00 Rev. 00

USER GUIDE

Keep this manual

for future reference

powersoft_DigimodPFC2_uguide_en

Data are subject to change without notice.
For latest update please refer to the
online version available on www.powersoft-audio.com.

Table of contents

1. Important safety instructions iii

2. Importantes instructions de sécurité iv

3. Instrucciones de seguridad importantes v

4. Importanti istruzioni di sicurezza vi

5. Regulatory information vii

6. Electrostatic Discharge (ESD) viii

7. Digimod 3004 PFC2 1

7 : 1.Welcome 1

7 : 2.Unpacking & checking for shipping damage 1

7 : 3.Disposal of the packing material 1

8. Thermal constraints 2

8 : 1.Heatsink performance 2

9. Electromagnetic Compatibility (EMC) & Safety 3

9 : 1.AC MAINS filter 3

9 : 2.Cabling 3

9 : 3.Ferrite cores 3

9 : 4.Chassis shielding 3

9 : 5.Mains Fuse 3

9 : 6.Earth connection 3

10. Mechanical drawings 4

11. Connections 5

10 : 1.1. Main conne ctor s pinou t 6

10 : 1.2. Bill of connectors 6

10 : 2.PL21 pinout 8

10 : 3.PL1000 Pinout 10

10 : 4.PL2000 Pinout 10

10 : 5.Audio path block diagram 11

10 : 4.1. Internal Signal Path Pola rit y 11

10 : 6.Protections 12

10 : 6.1. Power supply protectio ns 12

10 : 6.2. Primary AC mains overcurrent protection 12

10 : 6.3. Primary AC mains overvoltage protection 12

10 : 6.6. Secondar y ther mal prot ect ion 12

10 : 6.7. Harmful signal prote ctio ns 13

10 : 6.8. Outpu t shor t circuit 13

10 : 6.9. High frequency stationary loud signals 13

10 : 6.10. Auxiliar y power protec tions 13

10 : 6.11. Control Boa rd prot ect ion LEDs 13

10 : 7.LED char t 14

10 : 7.1. Control Board LE D chart 14

10 : 7.2. Main Board LE D char t 14

12. Evaluation Board - KTP00477 15

11 : 1.Switch functions 15

11 : 2.Test points 16

11 : 3.LED Description 17

11 : 4. Voltage and Thermal Limiter 18

11 : 5.Mute/Unmute 18

11 : 6.AUX Voltage selector 18

11 : 8.Energy Save 19

11 : 9.TempMon LED bar 19

11 : 7.Bypass entire EV B 19

11 : 10.Block diagram 20

11 : 11.Silkscreen 21

11 : 12.Schematic 22

11 : 13.Power + Energy Save 24

13. Evaluation Board - KT000291 25

12 : 1.Switch functions 25

14. Support and warranty 28

13 : 1.Ser vice 28

13 : 2.Warranty 28

13 : 2.1. Return of Goods 28

13 : 2.2. Repair or replacem ent 28

13 : 2.3. Cost and responsibility of transport 28

13 : 3.Assistance 28

10 : 6.4. Primar y thermal pr otec tion 12

10 : 6.5. Amplifie r protec tion s 12

15. Specifications 29

| i

ii | Digimod 3004 PFC2 | User guide

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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

1

CAUTION

RISK OF ELECTRICK SHOCK

DO NOT OPEN

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.

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 equip­ment (WEEE).

Symbol for electrostatic discharge sensitive devices.

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 regis­ters, stover or other apparatus that produce heat.

8. Do not defeat the safety purpose of the polarized or grounding­type 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.

TO REDUCE THE RISK OF ELECTRIC SHOCK, DO NOT ATTEMPT
TO OPEN ANY PART OF THE UNIT. NO USER-SERVICEABLE

PARTS INSIDE. REFER SERVICING TO QUALIFIED SERVICE PERSONNEL.

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.

SPEAKER TERMINALS COULD BE HAZARDOUS LIVE IF

SPEAKER BRIDGE MODE CONNECTION IS USED.

PROPER CONNECTIONS AND INSULATIONS TECHNIQUES

MUST BE ADOPTED WHEN SPEAKER BRIDGE MODE
CONNECTION IS USED.

Important safety instructions | iii

Importantes instructions de sécurité

Ce module d’amplification est destiné à être

installé à l’intérieur d’autres dispositifs et doit

donc être contrôlé sur le produit fini.

EXPLICATION DES SYMBOLES GRAPHIQUES

2

AVIS

RISQUES D’ÉLECTROCUTION

NE PAS OUVRIR

La triangle avec le symbol du foudre est employée
pour alerter l’utilisateur au risque de décharge élec­trique.

Le triangle avec un point d’exclamation est employée
pour alerter l’utilisateur d’instruction importantes
pour lors opérations de maintenance.

Le marquage CE indique la conformité à la directive de
basse tension et la compatibilité électromagnétique.

Symbole pour la connexion à la terre.

Symbole pour la conformité al la Directive 2002/96/
EC et la Directive 2003/108/EC du Parlement
Européen sur les équipements électriques et élec­troniques (WEEE).

Symbole pour les appareils sensibles aux décharges
électrostatiques.

1. Lisez ces instructions.

2. Gardez ces instructions.

3. Tenez compte de toutes les mises en garde.

4. Suivez toutes les instructions.

5. N’utilisez pas cet amplificateur à proximité de l’eau.

6. Assurez-vous d’une bonne ventilation de l’appareil. Installez en
accord avec les instructions préconisées par Powersoft.

7. N’installez pas l’appareil à proximité de sources de chaleur ou
d’autres appareils produisant de la chaleur.

8. Respectez le dispositif de mise à la terre de la prise secteur.

9. Utilisez uniquement les accroches et accessoires spécifiés par
Powersoft.

10. Confiez toute réparation à un technicien qualifié. L’intervention
d’un technicien est nécessaire dans les cas suivants : le cordon
d’alimentation ou la prise secteur sont endommagés, des corps
étrangers ou du liquide se sont introduits dans l’appareil, l’appareil
a été exposé à la pluie ou à l’humidité, l’appareil montre des
signes de dysfonctionnement ou est tombé.

MISE EN GARDE : AFIN DE RÉDUIRE LES RISQUES DE CHOC

ÉLECTRIQUE, N’ESSAYEZ PAS D’OUVRIR L’UNITÉ, MEME EN
PARTIE. AUCUNE PIÈCE A L’INTERIEUR NE PEUT ETRE CHANGÉE PAR
L’UTILISATEUR. LAISSEZ L’ENTRETIEN A UN PERSONNEL QUALIFIÉ.

iv | Digimod 3004 PFC2 | User guide

NE PAS EXPOSER CET APPAREIL A LA PLUIE OU A L’HUMIDITÉ,

AUX GOUTTES OU AUX ÉCLABOUSSURES. LES OBJETS
REMPLIS DE LIQUIDE, TELS QUE LES VASES, NE DOIVENT PAS ETRE
PLACÉS SUR CET APPAREIL.

LES BORNES D’ENCEINTES POURRAIENT ÊTRE DANGEREUX SI

LA CONNEXION DE MODE PONT DU HAUT-PARLEUR EST
UTILISÉ.

ADOPTER DES TECHNIQUES CORRECTES DE CONNEXION ET

D’ISOLEMENT LORSQUE LA CONNEXION EN MODE BRIDGE
HAUT-PARLEUR EST UTILISÉ.

Instrucciones de seguridad importantes

Este módulo amplificador está diseñado para

ser instalado dentro de otros dispositivos y

debe verificarse en el producto final.

EXPLICACIÓN DE LOS SÍMBOLOS GRÁFICOS

3

PRECAUCIÓN

RIESGO DE CHOQUE ELÉCTRICO

NO ABRA LA UNIDAD

El triángulo con el símbolo de rayo eléctrico es usa­do para alertar al usuario de el riesgo de un choque
eléctrico.

El triángulo con el signo de admiración es usado
para alertar al usuario de instrucciones importantes
de operación o mantenimiento.

La marca CE indica el cumplimiento de la directiva
de bajo voltaje y de compatibilidad electromagnética.

Símbolo de la conexión a tierra.

Símbolo de conformidad con la Directiva 2002/96/
EC y Directiva 2003/108/EC del Parlamento Europeo
sobre los aparatos eléctricos y electrónicos (WEEE).

Símbolo para los dispositivos sensibles a descargas
electrostáticas.

1. Lea estas instrucciones.

2. Guarde estas instrucciones.

3. Preste atención a todas las advertencias.

4. Siga todas las instrucciones.

5. No use este aparato cerca del agua.

6. No bloquee las aberturas de ventilación. Realice la instalación de
acuerdo con las indicaciones de Powersoft.

7. No instale cerca ninguna fuente de calor como, por ejemplo,
radiadores, rejillas de calefacción, hornos u otros aparatos que
produzcan calor.

8. No elimine el diseño de seguridad del enchufe, ya sea del tipo po­larizado o con conexión a tierra.

9. Use exclusivamente los dispositivos/accesorios indicados por
Powersoft.

10. El servicio técnico debe realizarlo siempre personal cualificado. Se
requerirá servicio de asistencia técnica cuando el aparato sufra
algún tipo de daño como, por ejemplo, que el cable de alimentación
o el enchufe estén dañados, que se haya derramado líquido o hayan
caído objetos dentro del aparato, que éste se haya expuesto a la llu­via o humedad, que no funcione normalmente o que se haya caído.

PRECAUCIÓN: PARA REDUCIR EL RIESGO DE DESCARGA

ELÉCTRICA, NO DESMONTE LA TAPA (NI EL PANEL TRASERO).
NO HAY PIEZAS REPARABLES POR EL USUARIO EN EL INTERIOR.
LLÉVELO A REPARAR A PERSONAL DE SERVICIO CUALIFICADO.

NO EXPONGA ESTE UNITAD A LA LLUVIA O LA HUMEDAD,

GOTEO O SALPICADURAS. NO COLOQUE OBJETOS LLENOS DE
LÍQUIDOS, TALES COMO VASIJAS, SOBRE EL APARATO.

TERMINALES DE LOS ALTAVOCES PODRÍA SER PELIGROSO, SI

SU CONEXIÓN SE UTILIZA EL ALTAVOZ MODO PUENTE.

ADOPTAR TÉCNICAS CORRECTAS DE CONEXIÓN Y

AISLAMIENTO CUANDO SE USA CONEXIÓN DE ALTAVOZ MODO
PUENTE.

Instrucciones de seguridad importantes | v

Importanti istruzioni di sicurezza

Questo modulo amplificatore è destinato ad essere

installato dentro altri dispositivi e deve quindi

essere controllato nel prodotto finito.

SPIEGAZIONE DEI SIMBOLI GRAFICI

4

ATTENZIONE

RISCHIO DI SCOSSE

ELETTRICHE, NON APRIRE

Il triangolo con il lampo è utilizzato per avvisare
l’utente del rischio di scossa elettrica.

Il triangolo con il punto esclamativo è utilizzato per
avvisare l’utente di importanti istruzioni d’uso e ma­nutenzione.

Il marchio CE indica la conformita’ del prodotto a
tutte le direttive europee applicabili

Simbolo della connessione di terra.

Simbolo di conformità alla Direttiva 2002/96/CE e
alla Direttiva 2003/108/CE del Parlamento Europeo
sulle apparecchiature elettriche ed elettroniche
(RAEE).

Simbolo per le apparecchiature sensibili alle scariche
elettrostatiche

1. Leggere queste istruzioni.

2. Conservare le istruzioni.

3. Tenere conto di tutti gli avvisi.

4. Seguire tutte le istruzioni.

5. Non usare l'apparecchio in prossimità di acqua.

6. Non ostruire le prese di ventilazione. Installare secondo le indica­zioni del produttore.

7. Non installare vicino a fonti di calore quali radiatori, bocchette
dell'aria calda, stufe o altri apparecchi (compresi gli amplificatori)
che producono calore.

8. Non compromettere la sicurezza delle spine polarizzate o con
messa a terra.

9. Usare solo accessori specificati dal produttore.

10. Ricorrere a personale qualificato per qualsiasi intervento. Tali
interventi sono necessari in caso di guasti dell'apparecchio
quali danneggiamento del cavo di alimentazione o della spina,
versamento di liquidi o caduta di oggetti nell'apparecchio, es­posizione a pioggia o umidità o se l'apparecchio non funziona
normalmente o è caduto.

ATTENZIONE: PER RIDURRE IL RISCHIO DI SCOSSE

ELETTRICHE, NON TENTARE DI APRIRE ALCUNA PARTE
DELL’UNITÀ. NON CI SONO PARTI INTERNE AD USO DELL’UTENTE.
RIVOLGERSI A PERSONALE QUALIFICATO PER L’ASSISTENZA.

vi | Digimod 3004 PFC2 | User guide

NON ESPORRE QUESTO APPARECCHIO ALLA PIOGGIA,

UMIDITÀ O SOSTANZE LIQUIDE. OGGETTI PIENI DI LIQUIDI,
COME VASI, NON DEVONO ESSERE COLLOCATI SU QUESTO APPARATO.

I TERMINALI DEI DIFFUSORI POTREBBERO ESSERE

PERICOLOSI, SE VIENE UTILIZZATA LA CONNESSIONE IN
MODALITÀ BRIDGE DEGLI ALTOPARLANTI.

ADOTTARE LE CORRETTE TECNICHE DI CONNESSIONE E

ISOLAMENTO QUANDO VIENE UTILIZZATA LA CONNESSIONE
IN MODALITÀ BRIDGE DEGLI ALTOPARLANTI.

Regulatory information

5

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 gener­ates, 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 equip­ment 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:

 Reorient or relocate the receiving antenna.
 Increase the separation between the equipment and receiver.
 Connect the equipment into an outlet on a circuit different from

that to which the receiver is connected.

 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
possible components.

This symbol indicates that when the end-user wishes
to discard this product, it must be sent to separate col­lection facilities for recovery and recycling. By separat­ing 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.

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 Name: Digimod 3004 PFC2
Intended use: Professional Audio Amplifier Module

Are in conformity with the provisions of the following EC Directives,
including all amendments, and with national legislation implementing
these directives:
2014/35/EU Low Voltage Directive
2014/30/EU Electromagnetic Compatibility Directive
2011/65/EU RoHs Directive

The following harmonized standards are applied:

EN 55103-2: 2009 /IS: 2012
EN 55032: 2012
EN 55035: 2017
EN 60065: 2014 /AC: 2016
EN 61000-3-3: 2013
EN 61000-3-2: 2014

Scandicci,
July 2019

Luca Lastrucci
Managing Director

For compliance questions only: [e-mail]

The Waste Electrical and Electronic Equipment Directive (WEEE Directive)
aims to minimise the impact of electrical and electronic goods on the en­vironment. 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 return­ing 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.

Regulatory information | vii

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 pro­vided with some form of ground conductive or dissipative
ooring.

6

viii | Digimod 3004 PFC2 | User guide

Digimod 3004 PFC2 User Guide

7

7 : 1.Welcome

Congratulations on your purchase of the Powersoft

DigiMod 3004PFC2 module.

We know you are eager to use the DigiMod 3004PFC2
module, 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.

The DigiMod 3004PFC2 is a four channel amplier mod­ules specically designed to drive high power loudspeakers.

The DigiMod 3004PFC2 represents an important evolu­tion in the DigiMod Series family of products: delivering up
to 1000 W on 4 � per channel (2000 W on 8 � in mono­bridged mode), the DigiMod 3004PFC2 reaches a new level
of excellence in terms of power consumption and sonic
performance.

The xed frequency switching mode technology design
guarantees maximum performances, high efciency and
predictability ensuring total immunity from intermodulation
artifacts. The new design of the power supply equipped
with PFC and Smart Rails Management reduces power
consumption and enhances reliability and consistency in
all operating conditions.

The DigiMod 3004PFC2 shares the same compact me­chanical layout of the other DigiMod Series models guaran­teeing scalability to existing and future implementations and
is fully compatible with all existing Powersoft DSP solutions
providing a powerful and exible signal processing tools on
board of your loudspeaker.

7 : 2.Unpacking & checking for shipping damage

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.

7 : 3.Disposal of the packing material

The transport and protective packing has been selected
from materials which are environmentally friendly for dis­posal and can normally be recycled.

Rather than just throwing these materials away, please
ensure they are offered for recycling.

Digimod 3004 PFC2 | 1

100 mm

3.94 inch

Be aware of

magnetic leakage

MIN.

Chimney eect

improves air ow

Thermal constraints

8

This device must be correctly heatsinked for proper and
reliable operation: an appropriate external passive heat sink
guarantees by design thermal efciency and reliability.

Proper heatsink planarity is strongly suggested to al­low thermal transfer from the module’s bottom plate to the
heatsink; a thermal compound may be used, but it is not
strictly necessary.

In order to ensure proper ventilation of the module, and
to prevent , reasonable spacing of at least 100 mm must be
left between the frame of the unit and any side component
or surface of the enclosure.

The module has been designed to t into a loudspeaker
cabinet: please refer to FIGURE 1 for proper module placing.

IN FIGURE 1 HEATSINK FINS ARE SET HORIZONTALLY

(WRONG!) ONLY FOR DESCRIPTIVE PURPOSE.

All conguration showed in FIGURE 1 are viable for
proper module placing and cooling. We suggest to posi­tion the module vertically with respect the ground in order
to take advantage of the chimney effect for ventilation and
heat dissipation.

In FIGURE 1.a the module and the loudspeakers share
the same room into the cabinet. This is the default place­ment solution: it allows good ventilation because of woofer
diaphragm movement and high air volume; be aware of
magnetic eld interaction: place the module far enough from
loudspeakers magnet in order to prevent fans blockage.

FIGURE 1.b shows the more efcient cooling congura-

tion, even if it is less effective against dust and moisture
that can get into the module. By allowing external air ow,
it is possible to reduce the ns width on the heatsink by
maintaining good cooling performances.

lowing formula:
The maximum dissipated power can be calculated as:

T

- T

mod

Rth =

Dissipated power

amb

For example, stating an efciency of 80%, 6 dB crest factor

W

(1 - e)

Dissipated power =

max

cf

and 3400 W peak power, the dissipated heat is:
Supposing that the thermal protection of the module (T

3400 (1 - 0.8)

4

= 170 W

mod

) is

set at 75°C (167°F) on the bottom plate and stating an ambi­ent temperature of 45 °C (113°F), the previous example gives:
meaning that the temperature of the bottom plate is always

75 - 45

170

= 0.14°C/W

lower than 75°C if the heatsink has a thermal resistance
better than 0.14°C/W (or 0.14 K/W) with ambient temperature
up to 45 °C.

a

100 mm

MIN.

3.94 inch

Be aware of

magnetic leakage

8 : 1.Heatsink performance

Here we suggest a rule of thumb to calculate the thermal
resistance of the heatsink.

The absolute thermal resistance of the heatsink is the
temperature difference (kelvin or celsius) across it structure
when a unit of heat energy ows through it in unit time (watt).
For seek of simplicity: a heatsink with low thermal resistance
offers high heat dissipation, as well as a low electric resist­ance allows high current owing through a conductive wire.

In order to dene the maximum allowed thermal resist­ance for the heatsink let assume the following:

 e as the amp module efciency

 cf as the crest factor of the audio signal

 W

as the peak power delivered by the module

max

 T

as the highest ambient temperature

amb

 T

as the highest operating temperature

mod

The thermal resistance of the heatsink derives from the fol-

2 | Digimod 3004 PFC2 | User guide

b

Do not obstruct

air ow

Be aware of
air leakage

FIGURE 1: Cooling solutions (for descriptive purpose the

heatsink fins are set in wrong direction);

a) Module and loudspeaker into the same chamber;

b) Module in a separate vented chamber.

Electromagnetic Compatibility (EMC) & Safety

9 : 1.AC MAINS filter

In order to improve the electromagnetic compatibility

performance an EMC lter must be inserted before
the AC MAINS plugs on the power supply. An example of
the suggested lter topology is reported below:

FIGURE 2: Typical electrical schematic of the EMI Filter.

9 : 2.Cabling

Wiring between the amp module and the load may lead
to radio frequency noise. The following guide lines should
be observed:

 reduced cabling length is advisable;
 keep cable pairs as close as possible to each other in

order to minimize the antenna effect;

 design the cabling path far from RF noise source;
 set the cabling for RF noise rejection: shielded or

twisted cables are advisable conguration (ref.

FIGURE 4);

 place ferrites as close to the module as possible

Loose pair

Configuration
prone to high
RF noise

Wrap both cables around one side of each ferrite so that
it pass through each ferrite twice (ref. FIGURE 3). Install the
ferrite shield as close as possible to where the cable plugs
into the amplier. Placing the ferrite elsewhere on the cable
noticeably reduces its effectiveness.

FIGURE 3: Ferrite core installation on I/O wirings.

9 : 4.Chassis shielding

If not already present on the product, a full body metal
chassis or a shielding cage will provide best shielding of RF
emission. In order to achieve the highest shielding, minimize
the amount and size of holes or opening in the chassis.

Input

signal

Ferrite core

AC MAINS filter

Amp module

inside

Chassis shielding

FIGURE 5: Tools and best practice for improving

the electromagnetic compatibility.

Output signal

Ferrite core

Parallel pair

Configuration
prone to RF noise

Twisted pair

Highly immune
to RF noise

Shielded pair

Highly immune
to RF noise

FIGURE 4: Cabling configuration.

9 : 3.Ferrite cores

Reject RF noise from input and output cabling by in­stalling ferrite shields. Powersoft suggests the FAIR RITE
0431164181, or equivalent.

9 : 5.Mains Fuse

Mains voltage cable must by protected by an external

Time delay fuse of 10A rating (time lag, Littlefuse Series

215). Replace the fuse with the same type and rating.

9 : 6.Earth connection

This device must be powered exclusively by earth

connected mains sockets in electrical networks
compliant to the IEC 364 or similar rules. Is absolutely nec­essary to verify this fundamental requirement of safety and,
in case of doubt, require an accurate check by a qualied
personal.
Is absolutely necessary to ground this device using the
proper earth connection on the metal frame of the chas­sis; use M4 nut and bolt with proper split washer – grover
washer – to secure the earth terminal lug.

Electromagnetic Compatibility (EMC) & Safety | 3

Mechanical drawings

216216

10

122122

202,9202,9

Warning! The lenght of the

thread of the M3 threaded holes

65,665,6

108,4108,4

81,181,1

108,5108,5

is not guaranteed to be the

44

208208

same across the module

200200

Ø4.2 THROUGH HOLE

Ø4.2 THROUGH HOLE

N°5 POS.

N°5 POS.

12,212,2

48,948,9

98,798,7

140,2140,2

164164

6,86,8

13,7

13,7

44

N°10 POS.

N°10 POS.

M3 THREADED M3 THREADED HOLEHOLE

FIGURE 6: Digimod 3004 PFC2 side and back plate (all dimensions in millimeters).

4 | Digimod 3004 PFC2 | User guide

54,254,2

79,379,3

Connections

Faston

6.3 x 0.8 mm

a

GROUND AC MAINS Faston

6.3 x 0.8 mm

Faston

6.3 x 0.8 mm

Channel 1

Channel 2

b

Faston

6.3 x 0.8 mm

Mono
Bridge

FIGURE 7: DigiMod 3004PFC2 – AC MAINS and audio output wiring:

a. Two ways – two single channels;

b. One way – channels 1-2 in bridge mode.

Connections | 5

HOT

Channel 1

Channel 2

GND

HOT
COLD

GND

COLD
HOT

Parallel
input

GND

HOT
COLD

COLD
GND

COLD
HOT
GND

Channel 1

Channel 2

HOT
COLD
GND

Parallel
input

FIGURE 8: DigiMod 3004PFC2 – Two input channels wiring.

10 : 1.1. Main connectors pinout

The following image and tables show the pinout of main
input and output connectors PL1000, PL2000, PL3000,
PL4000, PL1003, PL3003 and the SIMM board.

FIGURE 6 shows the default jumpers conguratin for
the Bypass connectors. By means of these jumpers it is
possible to change the main gain and enable the DSP and
external circuits.

Gain at +38dB is intended for low level inputs which
need more boost, such as consumer devices; take care
on raising the gain since this involves more noise at output
stages.

DSP and external circuits – such as lters or volume
regulators – can be independently activated by remov­ing related jumpers on PL1000 for channel 1, PL2000 for
channel 2, PL3000 for channel 3 and PL4000 for channel
4 (see paragraphs 9.4, 9.5, 9.6 and 9.7 for the pinout de­scription). Both DSP and external circuits can be layed on
a 72-pin SIMM board which would be plugged
Socket; for more informations about SIMM specications,
please contact Powersoft. SIMM board pinout is shown on
FIGURE 8.

PIN 1

Jumpered

Not jumpered

(Channel 1)

Remove jumper to
insert external circuit

Remove jumper
to enable DSP

Place jumper to
switch gain to 38 dB

PL8

into the SO5

FIGURE 10: DigiMod 3004PFC2 – parallel input wiring.

10 : 1.2. Bill of connectors

CODE NAME TYPE

SO5

PL21

PL2 Test Connector (reserved) IDC at ca ble 20 ways

PL17 Signal OUT 1 + Faston 6.3x0.8 mm Male

PL18

PL19 Signal OUT 2 – Faston 6.3x0.8 mm Male

PL20

PL8 Bypass Channel 1

PL13 Bypass Channel 2

PL1 reserved Molex 22-27-2031

PL7 FAN Molex 22-27-2031

PL22 FAN Molex 22-27-2031

PL23 FAN Molex 22-27-2031

PL25 reserved Molex 22-27-2031

Mating x fan: Molex 22-01-2035
Terminals: KK254 4809 Series

DSP/external circuit board

socket

Input connector channels

1 & 2

Signal OUT 1 –

(GND)

Signal OUT 2 +

(GND)

72-pin SIMM Socket

IDC at ca ble 34 ways

Faston 6.3x0.8 mm Male

Faston 6.3x0.8 mm Male

PL21

PL13

(Channel 2)

FIGURE 9: DigiMod 3004PFC2 bypass connectors pinout

6 | Digimod 3004 PFC2 | User guide

FIGURE 11: DigiMod 3004PFC2 surface components layout.

Connections | 7

10 : 2.PL21 pinout

PIN# Name IN OUT POWER Range

Active High,

Logic input 3.3 to 12 V

1 SDPWS

2 READY 1

3 RESERVED

4 RESERVED

5 GND

6 IN 1 +

7 IN 1 –

8 GND

9 VOUT1MON

10 PROTECT1

11 IOUT1MON

12 TEMPMON12

13 +12VDCOUT

14 -12VDCOUT

15 MUTE



















do not use the internal

aux power supply, an

external power supply

is needed.

Active High

3.3 V - 5 V



Unbalanced

1.92 V

for Full Output;

rms

7 V

Absolute Max

rms

Balanced

0.96 V

for Full Output;

rms

3.5 V

Absolute Max

rms

Unbalanced

1.92 V

for Full Output;

rms

7 V

Absolute Max

rms

Balanced

0.96 V



for Full Output;

rms

3.5 V

Absolute Max

rms

Level 1

(2 to 10) = not in

Protection

Level 0 (0 to 1) =

Protection

0 – 5 V

+12 Vdc; 0.5 A max out-



put current available

–12 Vdc; 0.5 A max out-



put current available

Active Low,

To be pulled to GND by

current sink of at least

20 mA

Input

Input

Input

Input

Scale
factor

dc

20 V/V4.5 k�

7.5 A/V4.5 k�

See

table

Imped-

ance

1 k�

Protected

Logic input

to be fed by

“OR” diode

Tol l e -

rance

Description

Power Supply Shut

Down

47 k� Signal Ready CH 1

Ground

Channel 1

Positive Balanced Input

10 k�

32 dB

Input To Output Overall

Gain

Channel 1

Negative Balanced

Input

10 k�

32 dB

Input To Output Overall

Gain

Ground

Channel 1

Output Voltage Monitor

Channel 1

100 k�

Output Stage Protection

Monitor

Channel 1

Output Current Monitor

7 k� NTC sensor tap output

Positive regulated

Polyswitch ±5%

analog section supply

(same as pin 22)

Negative regulated

Polyswitch ±5%

analog section supply

(same as pin 21)

CH1 and CH2

Output Stage Mute

(disable output stages

PWM)

8 | Digimod 3004 PFC2 | User guide

Table continues on the next page...

...continued from previous page.

PIN# Name IN OUT POWER Range

16 +VCCMON

17 -VCCMON

18 -VCCMON

19 +VCCMON

20 MUTE

21 -12VDCOUT

22 +12VDCOUT

23 TEMPMON12

24 IOUT2MON

25 PROTECT2

26 VOUT2MON

27 GND

28 IN 2 –

29 IN 2 +

30 GND

31 RESERVED

32 RESERVED

33 READY 2

34 SDPWS









+7. 5 V

–7. 5 V

–7. 5 V

+7. 5 V

Active Low,



To be pulled to GND by

current sink of at least

20 mA

–12 Vdc; 0.5 A max out-



put current available

+12 Vdc; 0.5 A max out-



put current available





0 – 5 V

Level 1

(2 to 10) = not in



Protection

Level 0 (0 to 1) =

Protection





Unbalanced

1.92 V

for Full Output;

rms

7 V

Absolute Max

rms



Input

Balanced

0.96 V

for Full Output;

rms

3.5 V

Absolute Max

rms

Input

Unbalanced

1.92 V

for Full Output;

rms

7 V

Absolute Max

rms



Input

Balanced

0.96 V





for Full Output;

rms

3.5 V

Absolute Max

rms

Active High

3.3 V - 5 V

Input

Active High,

Logic input 3.3 to 12 V



do not use the internal

aux power supply, an

external power supply

is needed.

Scale

Imped-

factor

dc

dc

dc

d

ance

4.5 k�

4.5 k�

4.5 k�

4.5 k�

Protected

Tol l e -

rance

Description

Rail Bus Positive

Monitor

Rail Bus Negative

Monitor

Rail Bus Positive

Monitor

Rail Bus Negative

Monitor

CH1 and CH2

Output Stage Mute

(disable output stages

PWM)

Negative regulated

Polyswitch ±5%

analog section supply

(same as pin 21)

Positive regulated

Polyswitch ±5%

analog section supply

(same as pin 22)

See

table

7.5 A/V4.5 k�

7 k� NTC sensor tap output

Channel 2

Output Current Monitor

Channel 2

100 k�

Output Stage Protection

Monitor

20 V/V4.5 k�

Channel 2

Output Voltage Monitor

Ground

Channel 2

Negative Balanced

Input

10 k�

32 dB

Input To Output Overall

Gain

Channel 2

Positive Balanced Input

10 k�

32 dB

Input To Output Overall

Gain

Ground

47 k� Signal Ready CH 2

dc

1 k�

Logic input

to be fed by

“OR” diode

Power Supply Shut

Down

Connections | 9

10 : 3.PL1000 Pinout

10 : 4.PL2000 Pinout

Pin# Name IN OUT Impedance Description

1 BY31

l

2.7 k� + 47 �

Channle 1

Unbalanced Intput

32dB gain

2-3 BY41

l

2.7 k� + 47�

38dB gain

Channle 1

Unbalanced

Output

5.4 k� + 47 �

4-5 BY21

6 B Y11

l

l

47 �

Channle 1

Unbalanced Input

Channle 1

Unbalanced

Output

Pin# Name IN OUT Impedance Description

1 BY12

l

47 �

Channle 2

Unbalanced

Output

2-3 BY22

l

Channle 2

Unbalanced Input

32dB gain

4-5 BY4 2

2.7 k� + 47�

l

38dB gain

Channle 2

Unbalanced

Output

5.4 k� + 47 �

6 BY32

l

2.7 k� + 47 �

Channle 2

Unbalanced Input

112.33

105.30

38.99

72 OUT 2–

71 GND

70 GND

69 IN 2 +

68 IN 2 –

67 BY 12

66 BY 22

65 BY 42

64 EARECT2

63 IOUT2MON

62 PROTECT2

61

60

59

58 MUTE

57

56

55

54

53

52 RESERVED

51 GND

50

49

48

47

46 OUT 4–

45 TEMP

44 GND

43 +VCCMON

42 SYNC CH

41 –VCCMON

40 GND

39 –12VDCOUT

38 +12VDCOUT

37 +5VDC

36 +5VDC

35 +12VDCOUT

34 –12VDCOUT

33 GND

32 –VCCMON

31 GND

30 +VCCMON

29 GND

28 TEMP

27

26 OUT 3+

25 DSPOUTCH3

24

23 DSPOUTCH4

22 GND

21 RESERVED

20 RESERVED

19 RESERVED

18 RESERVED

17

16

15 RESERVED

14 RESERVED

13 RESERVED

12 RESERVED

2.19 4.04

106.10

11 PROTECT1

10 IOUT1MON

09 EARECT1

08 BY41

07 BY21

04 IN 1+

03 GND

02 GND

01 OUT 1+

06 BY11

05 IN 1–

FIGURE 12: 72-pin SIMM board pinout; dimensions in millimiters.

10 | Digimod 3004 PFC2 | User guide

10 : 5.Audio path block diagram

first polarity

second polarity

IN 2 +

IN 2 –

OUT 2 –

JR3

JR4

47 Ohm

47 Ohm

1
2
3
4
5
6

+VCC

D S

D S

-VCC

BY12

BY22

BY42
BY32

470p

470p

G

G

2K7

IN 2 +

IN 2 –

GATE4

GATE3

10K

10K

47 Ohm

47 Ohm

2.7k

PWMCH2 PWMCH1

CONTROL BOARD

10K

10K

47 Ohm

47 Ohm

2.7k

GATE1

GATE2

IN 1 +

IN 1 –

470p

470p

2K7

BY11

BY21

BY41
BY31

47 Ohm

47 Ohm

6
5
4
3
2
1

+VCC

D S

G

D S

G

-VCC

IN 1 +

IN 1 –

JR2

JR1

OUT 1 +

FIGURE 13: Audio path block diagram for channel 1 & 2 on Control Board 1.

Channels 3 & 4 are managed by the Control Board 2 in the same way.

10 : 4.1. Internal Signal Path Polarity

In order to increase the power’s supply energy stor­age efciency, signals coming from channel pairs 1-2 and
3-4 are polarity reversed, one with respect to the other
within the pair, when entering the amplier. This ensures
a symmetrical use of the voltage rails: if, for example, both
channels’ 1 and 2 input signals are going through a peak
at the same time, channel 1’s energy will come from the
positive voltage rails while channel 2, whose polarity is
reversed with respect to channel 1, will be fed energy from
the negative voltage rails. In this manner, the power supply
will work symmetrically, with one channel catered by the
positive rails and the other by the symmetrical negative
rails. Channel 2’s signal will be polarity reversed once more
to ensure that both channels output with the same polarity
as their corresponding input signals.

For this reason it is very important not to invert the po­larity of either channels before feeding them to the module.
A double polarity inversion (the rst by the user inserting
the input signal and the other by the amplier’s internal
circuitry) results in no inversion at all. If this were the case,
both channels would be weighing on only one side (positive
or negative) of the power supply’s voltage rails. This would
result in an inefcient use of the power supply’s energy.

Please pay special attention in using balanced inputs on
all measurement equipment (such as oscilloscope probes)
when you are bench testing.

Channel 1

input

Channel 2

input

Amp

Channel 1

output

Channel 2

output

FIGURE 14: Internal signal path polarity with ex­ample input signals. Both channels 1 and 2 are

fed the same sine signal.Channels 3 & 4 are man-

aged by the Control Board 2 in the same way.

Connections | 11

10 : 6.Protections

Fault protections are systems designed to protect peo­ple from severe or fatal electric shocks and avoid severe
damages on the amplier or the loudspeakers in case of
electrical parameters out of scaling or critical changes in
environmental conditions.

The architecture of Powersoft’s ampliers encompass
several protection mechanisms triggered by harmful sig­nal and temperature. Protection systems and triggers are
independently implemented in the power supply section
(power supply protection) and the amplier section (ampli­er protections) in order to minimize system damages and
maximize efciency.

10 : 6.1. Power supply protections

Power supply protections aim to isolate a faulty section
in electrical power system from the rest of the device in
order to prevent the propagation of the fault and limit device
damages.

10 : 6.5. Amplifier protections

The amplier section protections are managed by the

Control Board and the Main Board in tandem.

Amplier protections are triggered by audio signal cur­rent and voltage – by comparing input and output – and
NTC, negative temperature coefcient, thermistors. NTC
thermistors provide thermal feedback to the Control Board,
to the Main Board and possibly to the DSP Board.

NTC resistance decreases with increasing temperature:
the table below displays the relationship between em­perature and voltage drop across NTC thermistors. NTC’s
voltage drop for each channel are routed to the respective
TEMPMON contacts on the SO5 socket.

Since the temperature is detected on the PCB surface
it does not represent the actual module temperature: be
aware that some parts of the amplier may be at higher
temperature.

T (°C) V

T (°C) V

10 : 6.2. Primary AC mains overcurrent protection

AC main overcurrent are ltered by a 10 A time-lag fuse
(also known as time-delay or low blow-fuse). The purpose
of the time lag fuse is to allow the supply in electricity for
a short time before the fuse actually blows. If the time-lag
fuse blows out the amplier switch off; replace the fuse
with a proper 10 A time-lag fuse in order to restore the full
functionality of the amplier.

10 : 6.3. Primary AC mains overvoltage protection

AC mains overvoltage threshold is set to 295 V
AC mains voltage exceeds 295 V

the power supply stop

rms

working; the device does not turn completely off but falls in
a “sleeping” mode: the power supply turns on again when
the AC mains voltage drops under 290 V

rms

.

AC mains overvoltage are well tolerated by the power
supply: non damages can be caused to the system even in
case of severe overvoltage up to 385 V

rms

.

. If the

rms

10 : 6.4. Primary thermal protection

The temperature is detected at power supply’s Q6 and
Q7 MOSFETs located on the Main Board bottom surface.

The working temperature of the power supply triggers
the heat dissipated by the device: if the temperature rises
exceeding components tolerances, the primary hardware
thermal protection starts lowering the rails voltage in order
to lower the heat wasted and keep the overall efciency
high.

The process is auto-adaptive and aims to maintain the
system up even in heavy thermal condition. If the rails volt­age drops down to ±33 V the Main Board microcontroller
shut down the amplier section (i.e. shut down the Control
Board), the power supply still running. This may happen
rarely in harsh conditions: the amplier does not switch off
but neither signal processing nor fan cooling are active. In
these conditions, while the temperature slowly decreases,
the rails voltage rises: when the rails voltage reaches ±33V,
the ampliers section switch on again. If cooling is not ef­fective, the system may start oscillate.

-40 4.82

-35 4.76

-30 4.69

-25 4.6

-20 4.5

-15 4.37

-10 4.22

-5 4.05

0 3.86

5 3.66

10 3.43

15 3.2

20 2.96

25 2.71

30 2.47

35 2.24

40 2.02

45 1.82

50 1.63

55 1.46

60 1.3

65 1.16

70 1. 04

75 0.93

80 0.83

85 0.75

90 0.67

95 0.61

100 0.55

105 0.5

110 0.46

115 0.42

120 0.38

125 0.35

130 0.33

135 0.31

140 0.29

145 0.27

150 0.25

10 : 6.6. Secondary thermal protection

Microcontrollers on the Main Board and on the Control
Board manage fans rotation depending on the mean tem­perature of the module sensed by the NTC thermistors.

12 | Digimod 3004 PFC2 | User guide

The Main Board and the Control Board microcontrollers
work in parallel by triggering fan speed rotation and output
power modulation at different temperature threshold. The
Main Board’s circuitry implements a fan speed control
that operates at lower temperature with respect to Control
Board fan management; Main Board actions have priority
on Control Board actions.

In heavy thermal conditions the system reduces the
available power drawn by the ampliers section by means
of a reduction of the output current: this lower the heat dis­sipation and improve cooling, but reduces the signal output
level. In parallel to the power drop operated by the Control
Board microcontroller, the Main Board microcontroller re­duces the rails tension to ±70V.

The table below shows the temperature thresholds
that trigger the microcontrollers and the actions operated
accordingly.

10 : 6.7. Harmful signal protections

Bad signals can cause amplier and loudspeakers
damages. In order to limit damages, harmful signal triggers
specic protections.

10 : 6.8. Output short circuit

If the load impedance is too low or the loudspeaker line
has a short circuit (because of voice coil damages, wires
short circuit, improper wiring, etc), the amplier output cur­rent rises to harmful values.

When the output current reaches 54 A
Control Board microcontroller shut down the amplier sec­tion, the power supply still working. After 2 seconds the
Control Board microcontroller switches on the amplier
section: if the short circuit still persists, the current rises
and the amplier is switched off again. The microcontroller
toggles the ampliers on and off every 2 seconds until the
short circuit is removed.

peak

(38 A

rms

) the

high amplitude tend to stress the amplier section of the
module as well as the loudspeakers voice coils.

When a high frequency stationary loud signals is feed
into the amplier the Control Board limits its mean current
depending on its level and frequency. The process is auto
adaptive and frequency driven: at higher frequency the
limiter acts faster.

The system limit s output current of lo ud signals in the band
10 kHz – 20 kHz with output amplitude higher than 95 V

rms

above 20 kHz the protection operates when the output am­plitude exceeds 48 V

rms

.

10 : 6.10. Auxiliary power protections

Auxiliary plugs are protected against short circuit: a
poliswitch opens the auxiliary circuits when the current
drawn exceeds 2.2A.

10 : 6.11. Control Board protection LEDs

The Control Board is equipped with a protection LED
per channel (see LED chart). The protection LED lights when
one of the following protection systems turns on:

 Output short circuit;

 Thermal protection;

 Rails undervoltage.

D200 D100D5 D102D202 D3 D4

;

10 : 6.9. High frequency stationary loud signals

High frequency stationary signals, like steady sinusoid

signals – improperly referred as continuous signals – with

TEMPMON (V) T (°C) Main Board Fan Main Board Power Control Board Fan

VT > 2.02 T

1.63 < VT < 2.02 40 < T

1.30 < VT < 1.63 50 < T

1.04 < VT < 1.30 60 < T

0.9 < VT < 1.06 70 < T

0.69 < VT < 0.9 75 < T

VT < 0.69 T

< 40 OFF W

mean

< 50 ON SLOW W

mean

< 60 ON FAST W

mean

< 70 ON FAST W

mean

< 75 ON FAST V

mean

< 90 ON FAST V

mean

> 90 ON FAST V

mean

FIGURE 15: Control Board LEDs.

Control Board

OFF W

max

OFF W

max

OFF W

max

ON FAST W

max

= ±70 V ON FAST 1/2 W

rails

= ±70 V ON FAST 1/10 W

rails

= ±70 V Ampliers shut down

rails

Power

max

max

max

max

max

max

Connections | 13

10 : 7.LED chart

Both the Main Board and the Control Board are equiped with status LED and protection LED; refer to FIGURE 11 and

FIGURE 12 for LED localization and the following table for LED description.

10 : 7.1. Control Board LED chart

LED ID Type Description Idle mode Signal mode

D3 status Auxiliary +12 V active ON ON

D4 status Auxiliary +5 V active ON ON

D5 status Auxiliary –12 V active ON ON

D102 protection Control Board protection engaged on CH 1 NORMALLY OFF NORMALLY OFF

D202 protection Control Board protection engaged on CH 2 NORMALLY OFF NORMALLY OFF

D100 status Current calibration / current drawn by CH 1 NORMALLY OFF BLINK

D200 status Current calibration / current drawn by CH 2 NORMALLY OFF BLINK

10 : 7.2. Main Board LED chart

LED ID Type Description Idle mode Signal mode

D6 status rails +Vcc ON ON

D8 status rails –Vcc ON ON

D37 protection Main Board secondary protection engaged NORMALLY OFF NORMALLY OFF

D39 status Mute ON when MUTE ON ON when MUTE ON

D20 protection Main Board primary protection engaged NORMALLY OFF NORMALLY OFF

D6

14 | Digimod 3004 PFC2 | User guide

D8D37D39D20

FIGURE 16: Main Board LEDs.

Evaluation Board - KTP00477

11 : 1.Switch functions

The EVB is an analog audio interface that includes
a thermal limiter, a clip limiter, and other functions (mute,
energy save enable) in order to evaluate any Powersoft
module without using a DSP. When using amp modules
that feature on board clip and thermal limiters (such as the
4HC, or DigiMod PFC2/4), the limiters on the EVB can be
bypassed.

BB

A

B

HC

F J

E E

A

B

11

Status

Description

CH1-CH2 Bridge Mode OFF OFF

A

CH3-CH4 Bridge Mode OFF OFF

A

CH1 Polarity Reverse ON OFF

B

CH2 Polarity Reverse ON OFF

B

CH3 Polarity Reverse ON OFF

B

CH4 Polarity Reverse ON OFF

B

Bypass_0 OFF OFF

C

CH1 Mute OFF OFF

D

CH2 Mute OFF OFF

D

CH3 Mute OFF OFF

D

CH4 Mute OFF OFF

D

Voltage Limiter Disable C H 1-2 ON ON

E

Voltage Limiter Disable C H 3-4 ON ON

E

Energy Save ON OFF

F

Lever pos.

meaning

Suggested

Position

ESM ODE CH1-2 OFF OFF

G

ESMODE CH2-3 OFF OFF

G

Thermal Limiter Threshold Setup ON See 14.4

H

CH1 Bypass OFF ON

I

CH2 Bypass OFF ON

I

G G

Switch Status ON Status OFF

A

B

C

D

E

F

G

Bridge Mode

Polarty Reverse

Bypass_0

Mute

Limiters Disable

Energy Save

ESMODE

Reverse polarity for each input XLR (see block dia­gram for better comprehension of Polarity Reverse

Output sourced to IDC connector directly from

input XLRs. When ON, all EVB limiting circuitry is

bypassed (to be used in conjunc tion with Bypass 1-4

Mute related channel (disable output stage PWM

thermal and voltage limiters disabled.

Signal pass through internal preamplier stage any-

Energy save Active: after 10sec that input signal is not

detected, it goes into “shut down / auto mute” state

depending on the status of ESMODE switch; it wakes

up if signal is detected (wake up threshold -59dBV).

When Energy Save Mode is enabled this status shuts

down the Power Supply of the module (connected to

DDDI ID

I

Ch1 routed to both Ch1, Ch2
Ch3 routed to both Ch3, Ch4

insertion point)

(I) congured in status OFF)

generator)

way.

the related output connector)

I

CH3 Bypass OFF ON

I

CH4 Bypass OFF ON

I

Auxilliary Voltage Selector OFF OFF

J

Each input connector is routed on its related

Input signal from XLR pass through internal

preampliers and limiters. (to be used in

conjunction with Bypass 1-4 status ON)

Related channel unmuted

Thermal and voltage limiters engaged.

When Energy Save Mode is enabled this

status mutes all channels of related connector

(disable output stage PWM generator power

supply is not shut down).

channel

Standard polarity

(dip switch closed).

Energy save disabled.

Evaluation Board - KTP00477 | 15

Switch Status ON Status OFF

H

Thermal Limiter Threshold Setup

I

J

Bypass 1-4

Auxilliay Voltage Selector

Set threshold according to the attached table ampli-

er dependant too.

Signal goes to internal preamplier and limiter

circuitry.

Sets module having auxiliary voltage of +/-15V.

Not applicable fot Litemod 4HC and DigiMod PFC2/4

Signal disconnected from internal limiters.

In order to completely bypass inner circuitry,

Input bypass should be OFF and Limiter

Bypass ON

Module has a default auxiliary voltage of +/-

12Vdc - Not applicable fot Litemod 4HC and

DigiMod PFC2/4

11 : 2.Test points

Test Point Description Scale/Full Scale (For Minimod4)

GND Ground

PWMLIM1 (2,3,4) Thermal Limiter Status (active high)

CLIPVL1 (2,3,4) Voltage Limiter Threshold dependent from rail voltage

TEMPMON12 (34) Signal monitoring the thermal status of amplier stages. See table below

IOUT1MON (2,3,4) Output Current monitor (scale dependent from connected module) 8A/V
VOUT1MON (2,3,4) Output Voltage monitor (scale dependent from connected module) 20V/ V
IN1EUNBAL (2,3,4) Unbalanced Input Signal (in phase and compared to IN-) 1V/V

IN1-EXT (2,3,4) Balanced Negative Input Signal (at IDC output connector) 1V/ V ( ±1%)

IN1+EXT (2,3,4) Balanced Positive Input Signal (at IDC output connector) 1V/ V (±1%)

PROTECT1 (2,3,4) Protection Circuit Detection (active low) 4.6V

Mute CH1 (2,3,4) Channel Mute (active low) 8V

RDY1 (2,3,4) Channel Ready to play (signal dependent from connected module) 2V

VMON12N Negative rail Monitor Channels 1,2 20V/ V
VMON12P Positive rail Monitor Channels 1,2 20V/ V
VMON34N Negative rail Monitor Channels 3,4 20V/V
VMON34P Positive rail Monitor Channels 3,4 20V/V
SDPWS12 Shut Down Power Supply Signal (active high) engaged by Energy safe mode. 4.5V
SDPWS34 Shut Down Power Supply Signal (active high) engaged by Energy safe mode. 4.5V

-12S W Auxiliary Negative Supply Voltage (switched when engaging energy safe mode) 1V/V

-12V C Auxiliary Negative Supply Voltage (as supplied by module) 1V/V

+12SW

+12 VC Auxiliary Positive Supply Voltage (as supplied by module) 1V/V

+5VC Auxiliary Positive +5V Supply Voltage (as supplied by module) 1V/V

Switched Auxiliary Positive Supply Voltage (switched when engaging energy safe

mode)

1V/V

16 | Digimod 3004 PFC2 | User guide

11 : 3.LED Description

E

B
C
D

A

F

G

J J J J

I I I I

H H H H

N

M

L

K

LED Color ON OFF

A

B

C

D

E

F

G

H

I

J

K

L

M

N

SIGNAL PRES GREEN Signal presence on input connectors Absence of signal at input connectors

12SW -12VC GREEN Presence of -12V auxiliary voltage

+12SW +12 VC GREEN Presence of +12V auxiliary voltage

+5VC GREEN Presence of +5VC auxiliary voltage absence of +5VC auxiliary voltage

Energy Save GREEN When Energy save engaged When energy save OFF

SDPWS12 GREEN

SDPWS34 GREEN

RDY1,2,3,4 GREEN When related channel in Ready Status When related channel not in Ready Status

PROTECT1,2,3,4 RED When related channel in Protect Status When related channel not in Protect Status

LIMIT1,2,3,4 AMBER When limiter of related channel is engaged When limiter of related channel is not engaged

TEMPMON12, 34 - 25°C GREEN

TEMPMON12, 34 - 50°C AMBER

TEMPMON12, 34 - 75°C AMBER

TEMPMON12, 34 - 85°C RED

When SDPWS enabled by Energy save

status

When SDPWS enabled by Energy save

status

When TEMPMON of related channel pair is

< 2.56V

When TEMPMON of related channel pair is

< 1.65V

When TEMPMON of related cchannel pair

is < 0.93V

When TEMPMON of related channel pair is

< 0.826V

Absence of -12V auxiliary voltage. Switched off in

case Energy Save status engaged

Absence of +12V auxiliary voltage. Switched off in

case Energy Save status engaged

When SDPWS disabled

When SDPWS disabled

When TEMPMON of related channel pair is > 2.56V

When TEMPMON of related channel pair is > 1.65V

When TEMPMON of related channel pair is > 0.93V

When TEMPMON of related channel pair is >

0.826V

Evaluation Board - KTP00477 | 17

11 : 4. Voltage and Thermal Limiter

The EVB is provided with a Clip and Thermal Limiter that protects the connected amplier. Since DigiMod PFC2/4 is protected
by its own limiters, we suggest to disable the EVB internal limiter by using the “Voltage Limiter Disable Switch” (E) (see
suggested conguration shown at par 11.1).

The EVB’s Thermal Limiter can be used with DigiModPFC2/4 by setting lower thresholds in order to change the amp thermal

behavior, but additional precautions must be taken in order to avoid a thermal shut-down of the module.

Amp inner

Temperature

25 2.71
30 2.47
35 2.24
40 2.02 a
45 1.82
50 1.63 b
55 1.46
60 1.30
65 1.16
70 1.0 4 c
75 0.93
80 0.83
85 0.75
90 0.67
95 0.61

Temp Mon 12-34 Threshold ID

TEMP LIMIT VOLTAGE SELECTOR

1 2 3 4 5 6 7 8 Threshold ID

OFF ON OFF OFF OFF OFF OFF OFF g

OFF ON ON OFF OFF OFF OFF OFF f

OFF ON ON ON OFF OFF OFF OFF e

OFF ON ON ON ON OFF OFF OFF d

OFF ON ON ON ON ON OFF OFF c

OFF ON ON ON ON ON ON OFF b

OFF ON ON ON ON ON ON ON a

ON

1 53 72 64 8

OFF

Warning: when enabling Thermal Limiter inside EVB, a Clip Limiter will be also enabled. Clip Limiter limits a max THD of

output signal of about 3%, this limiter cannot be adjusted by the user.

11 : 5.Mute/Unmute

Couples of channels CH1-CH3 and CH2-CH4 can be muted or unmuted by acting on the switch “MUTE” of related channels.
When muting a channel, PWM generator stage is disabled.

MUTE CH1 MUTE CH2 MUTE CH3 MUTE CH4 CH1 CH2 CH3 CH4

ON MUTED MUTED

ON MUTED MUTED

ON MUTED MUTED

ON MUTED MUTED

11 : 6.AUX Voltage selector

By default most of Powersoft modules provide an auxiliary supply voltage of +/-12V. By activating (ON status) this switch, the
module provides an auxiliary volt of +/-15V - not applicable on DigiMod PFC2/4 family.

18 | Digimod 3004 PFC2 | User guide

11 : 8.Energy Save

Evaluation board is provided of a signal detection circuit having a wake up threshold of about -59dBV. If Energy save Active, after
10sec of a lack of signal detection, it goes into “shut down / auto mute” state. Depending on the status of ESMODE switch Its
behavior may change as follow:

If ESMODE ON: (not applicable on DigiMod PFC2/4 family.) When Energy Save Mode is enabled a Shut down of Power Supply
of the module (connected to the related output connector).

If ESMODE OFF: Energy Save status leads to a mute of channels of related connector (disable output stage PWM generator
power supply is not shut down).

11 : 9.TempMon LED bar

A LEDs light bar indicates 4 different thresholds as listed in the table below. Temperatures indicated on the scale must be
considered only as an indication and are strongly dependent from the module used along with evaluation board.

LED

25˚ 2.5
50˚ 1.65
75˚ 0.93
85˚ 0.826

Turn on/off

Threshold (V)

11 : 7.Bypass entire EVB

When bypassing a channel of evaluation board, the signal goes directly from XLR input connectors to DIL 34 poles output
connectors. In this way, evaluation board can be transformed in a passive XLR input board, routing audio signals straight from
the input XLRs to the amplier’s input terminals (polarity reverse and bridge switches are disabled too).

The following position of switches “Bypass_0” “Bypass_01” “Bypass_2” “Bypass_3” “Bypass_4” should be set:

Channel to

be bypassed

CH1 OFF OFF - - - - - - ON - - ­CH2 - - OFF OFF - - - - - ON - ­CH3 - - - - OFF OFF - - - - ON ­CH4 - - - - - - OFF OFF - - - ON

1 2 3 4 5 6 7 8 1 2 3 4

BYPASS_0 BYPASS_1-4

In order to activate the internal limiters of demo board, the above described switches must be set in the opposite position as
follow.

Channel to

be activated

CH1 ON ON - - - - - - OFF - - ­CH2 - - ON ON - - - - - OFF - ­CH3 - - - - ON ON - - - - OFF ­CH4 - - - - - - ON ON - - - OFF

1 2 3 4 5 6 7 8 1 2 3 4

BYPASS_0 BYPASS_1-4

When EVB bypass is active, the following features are still available: TEMP LED BAR, MUTE, energy save (+ energy save mode
selection).

Evaluation Board - KTP00477 | 19

CLIPLVL12

PWMLIM12

11 : 10.Block diagram

CH3

SD

+5VC

CH4

CH2

CH1

BLANCKING

CIRCUIT

+12VA

-12VA

+5 VA

+12VB

+5VB

-12VB

AUX INPUT

AMP SMPS

+12V

-12V

+5VC

EMI FILTER

TEMPMON12

TEMPMON34

TEMP LEDS

+5VD

+12SW

-12SW

VMON34N

CLIPLEV GEN

+

CLIPLVL34

MUTE4

MUTE3

MUTE1

MUTE2

MUTE 1,2,3,4

SWITCHES

MUTE

GND

NC

NC

+12VC

-12VC

+12SW

+5VD REG

VMON12N

RAIL MONITOR

CLIPLVL12

PRESENCE

CIRCUIT

SIGNAL

IN3_N

IN4_N

IN4_P

BYPASS_0

+12SW

WAKE UP/

CIRCUIT

SDPWS

IN4SW_N

IN4SW_P

IN2_P

IN3_P

IN2SW_P

IN3SW_P

IN3SW_N

IN1_N

IN2_N

IN1_P

IN1SW_P

IN1SW_N

IN2SW_N

+5VC

REV CH4

SWITCH

SWITCH

SD

MANUAL SWITCH

ENERGY

CIRCUIT

SAVE

+

-12SW

+12SW

SD

AUTO MUTE

SWITCHES

SDPWS /

ESMODE

AUTOMUTE

SDPWS

ENABLE

SPWS 12 & 34

AUTOMUTE 12 & 34

ENABLE

IN4SW_P

IN4BS_N

IN4BS_P

PARALLEL

SWITCH

IN4BS_P

IN3S_P

IN4S_P

IN3SW_N

IN3SW_P

IN4SW_N

IN2BS_N

IN3S_N

IN3S_P

IN4BS_P

IN3S_P

IN4BS_N

IN3S_N

CH3-4

IN4BS_N

IN3S_N

IN4S_N

SWITCH

IN2BS_P

SWITCH

SWITCH

IN1SW_N

IN1SW_P

IN2SW_N

IN2SW_P

IN2BS_P

IN1S_N

IN2BS_N

IN2BS_P

IN1S_P

IN2S_P

IN1S_P

IN1S_N

IN1S_P

PARALLEL

CH1-2

IN2BS_N

IN1S_N

IN2S_N

REV CH1

REV CH2

REV CH3

AUXVSEL

CH4 BAL IN STAGE

CH3 BAL IN STAGE

+12SW -12SW

OUTPUT SWITCH

TEMP LIMITER

DIP SWITCH

SELECTOR

VOLTAGE

AUXVSEL

12V - 15V

AMP AUX

+12SW -12SW

CH2 BAL IN STAGE

+12SW -12SW

CH1 BAL IN STAGE

+12SW -12SW

+5VD

NC

Vref

+12SW

Vref

NC

SWITCHES

LIMITERS

+12SW

NC

Vref

DISABLE

GND

NC

TEMPMON12

TEMPMON34

GND

TEMP MONITOR

+12SW

-12SW

PWMLIM34

PWMLIM12

GND

CLIPLVL34

PWMLIM34

CH4 BAL OUT STAGE

LIMITERS

CH 3-4

STAGE

+12SW -12SW

+12SW -12SW

LIMITERS

CH 1-2

STAGE

CH3 BAL OUT STAGE

+12SW -12SW

CH1 BAL OUT STAGE

CH2 BAL OUT STAGE

+12SW -12SW

+12SW -12SW

LITEMOD4HCEVB

BLOCK DIAGRAM

20 | Digimod 3004 PFC2 | User guide

+12SW

IN1EXTB_N

IN1EXTB_N

IN1_N

IN1_P

BYPASS_1

IN1EXT_P

IN1EXT_N

IN2EXTB_N

IN2EXTB_N

IN2_N

IN2_P

BYPASS_2

IN3EXTB_N

IN3EXTB_N

IN3_N

IN3_P

BYPASS_3

IN3EXT_P

IN3EXT_N

IN4EXTB_N

IN4EXTB_N

IN4_N

IN4_P

BYPASS_4

IN3EXT_P

IN3EXT_N

IN4EXT_P

IN4EXT_N

IN4EXT_P

IN4EXT_N

IN1EXT_P

IN1EXT_N

IN2EXT_P

IN2EXT_N

IN2EXT_P

IN2EXT_N

11 : 11.Silkscreen

Evaluation Board - KTP00477 | 21

1

2

3

4

5

6

7

8

D D

C C

B B

A A

Power soft S .p.A.

Via E. Conti , 5

Project:

LITEMO D4HC

This document contains proprietary informations

and patents which is the property of Powersoft S.p.A.,

that may not be disclosed, reproduced or used

without express written consent from Powersoft S.p.A.

BIAS1

1

DBIAS1

2

IN1+

3

IN1-

4

OUT1

5

V-

6

BUFIN1

7

BUFOUT1

8

BIAS2

16

DBIAS2

15

IN2+

14

IN2-

13

OUT2

12

V+

11

BUFIN2

10

BUFOUT2

9

U16

LM13700M

Q1

BC807-25L

Q3

BC807-25L

0603

C11

1u

0603

R24

4K7

0603

R30

22K

0603

R31

100K

0603R92K2

0603

R20

22K

0603

R16

470R

0603

R14

1K

0603

R17

47R

Q2

BC807-25L

0603

R27

22K

32

D1B

BAS28

41

D1A

BAS28

-12SW

+12SW

+12SW

-12SW

0603

C2

100p

0603

R18

47R

0603

R26

10K

0603

R13

18K

0603

R6

15K

0603

R3

15K

0603

R15

2K2

0603

R22

15K

Q6

BC807-25L

Q4

BC807-25L

0603

C20

1u

0603

R43

4K7

0603

R38

22K

0603

R39

100K

0603

R60

2K2

0603

R52

22K

0603

R58

470R

0603

R56

1K

0603

R53

47R

Q5

BC807-25L

0603

R40

22K

4 1

D2A
BAS28

32

D2B

BAS28

+12SW

-12SW

0603

C28

100p

0603

R54

47R

0603

R47

10K

0603

R59

18K

0603

R66

15K

0603

R68

15K

0603

R57

2K2

0603

R48

15K

CLIPLVL1

PWMLIM12

CLIPLVL2

PWMLIM12

1206

C4 10u

1206

C6 10u

1206

C23 10u

1206

C24 10u

0603R74K7

0603

R2

4K7

TP2

0603

R65

4K7

0603

R69

4K7

IN2EUNBAL

+/-0.1% 0603

R5

4K7

+/-0.1%

0603

R12

4K7

+/-0.1% 0603

R1

10K

0603

R4

330R

0603

R11

330R

+/-0.1%

0603

R21

10K

+/-0.1% 0603

R19

4K7

+/-0.1%

0603

R10

4K7

0603

C1

22p

0603

C10

22p

0603

C9

100p

0603C51n

0603C3100p

+/-0.1%

0603

R63

4K7

+/-0.1%

0603

R71

4K7

+/-0.1% 0603

R55

10K

0603

R62

330R

0603

R70

330R

+/-0.1%

0603

R73

10K

+/-0.1% 0603

R72

4K7

+/-0.1%

0603

R67

4K7

0603

C21

22p

0603

C29

22p

0603

C30

100p

0603

C251n0603

C22

100p

IN1EUNBAL

RedD5HSMH-C265

+12VC

nPROTECTEXT1

Green

D11

HSMG-C265

+12VC

RDY1

0603

R148

10K

0603

R165

10K

0603

R159

1M

0603

R170

1M

RedD6HSMH-C265

+12VC

nPROTECTEXT2

Green

D9

HSMG-C265

+12VC

RDY2

0603

R149

10K

0603

R163

10K

0603

R160

1M

0603

R167

1M

IN1_P

IN1_N

IN2_N

IN2_P

0603

R33

47R

0603

R42

47R

0603

C18

100p

0603

R36

2K2

0603

R41

2K2

IN1EUNBAL

IN1EXT_N

IN1EXT_P

0603

R64

47R

0603

R78

47R

0603

C27

100p

0603

R74

2K2

0603

R76

2K2

IN2EUNBAL

IN2EXT_N

IN2EXT_P

TP7

TP9

IN1EXT_P

IN1EXT_N

VOUT1MON

TEMPMON12

+12VA

-12VA

MUTE1

MUTE2

-12VA

+12VA

TEMPMON12

VOUT2MON

IN2EXT_N

IN2EXT_P

IOUT2MON

SDPWS12

SDPWS12

RDY1

RDY2

IOUT1MON

VMON12P

VMON12P

VMON12N

VMON12N

nPROTECTEXT2

nPROTECTEXT1

+5VA

+5VA

Pin3 = ID1 / Pin 32 = ID2

AUXVSEL

SDPWS12

0603

R25

10R

0603

R75

10K

0603

R77

1M

0603

C31

100p

VMON12N

VMON12N_BUFF

TP8

TP5

TP15

TP47 TP48

TP4

TP6

IN1_UNBAL

IN2_UNBAL

CH 1-2 Bridge

TP35 TP36

TP3

TP11

TP12

TP13

TP16

TP17

TP18

5

6

7

SO8

U1B

NE5532D

3

2

1

SO8

U1A

NE5532D

3

2

1

SO8

U4A

NE5532D

5

6

7

SO8

U4B

NE5532D

3

2

1

SO8

U11A

NE5532D

5

6

7

SO8

U11B

NE5532D

3

2

1

SO8

U12A

NE5532D

5

6

7

SO8

U12B

NE5532D

1

2

3

U15A

TL072CD

123456789

10111213141516171819202122232425262728293031323334

PL1

DS1011-34SBSiB7-B

2

3

1

PUSH

231

FEMALE

G

SO1

NC3FAAV-2

2

3

1

PUSH

231

FEMALE

G

SO2

NC3FAAV-2

TP54

TP55

TP56

TP65

TP66

TP69

3

2

1

SO8

U2A

NE5532D

5

6

7

SO8

U2B

NE5532D

0603

C7

100p

0603

R28

3K3

7

6

5

U15B

TL072CD

VMON12N_BUFF

CLIPLVL12

0603

R23

10R

CLIPLVL12

CLIPLVL12

Amber

D23

HSMA-C265

0603

R49

4K7

Amber

D22

HSMA-C265

0603

R44

4K7

1

2

3

SO-14

U18A

LMV324ID

7

6

5

SO-14

U18B

LMV324ID

8

9

10

SO-14

U18C

LMV324ID

14

13

12

SO-14

U18D

LMV324ID

0603

R219

1K6

0603

R209

1K33

0603

R132

1K8

0603

R127

4K7

0603

R215

100R

0603

R213

100R

TEMPMON12

0603

R217

10K

0603

R211

10K

0603

R207

10K

0603

R128

10K

Green

D28

HSMG-C265

Red

D34

HSMH-C265

Amber

D30

HSMA-C265

Amber

D32

HSMA-C265

+5VD

0603

R32

10K

MUTE1

MUTE2

0603

R29

4K7

D36

BAV20WS-7-F

0603

R37

4K3

1

2

3

U21A

TL072CD

PWMLIM12

TEMPMON12

0603

R105

220K

0603

R114

100K

123

SH

SW10

OS102011MS2QN1

123

SH

SW6

OS102011MS2QN1

123

SH

SW7

OS102011MS2QN1

123

SH

456

SW2

OS202011MS2QN1

123

SH

456

SW1

OS202011MS2QN1

123

SH

456

SW3

OS202011MS2QN1

ReverseCH1

ReverseCH2

Text

Text

0603

C51

100p

MUTE1 MUTE2

G

D

S

Q27

2N7002

SD

G

D

S

Q29

2N7002

1206

R228

0R

1206

R227

0R

0603

R237

1M

0603

R239

1M

0603

C79

1u

123

SH

456

SW4

OS202011MS2QN1

Vref12

Vref

Vref12

1

2

3

SH

4

5

6

SW19

OS202011MS2QN1

IN1_P

IN1_N

1

2

3

SH

4

5

6

SW21

OS202011MS2QN1

IN2_P

IN2_N

Green

D40

HSMG-C265

+5VD

+12SW

-12SW

0603

R245

2K2

1516

1825057-7

SW22H

1314

1825057-7

SW22G

1112

1825057-7

SW22F

910

1825057-7

SW22E

IN2BS_N

IN2BS_P

IN1S_N

IN1S_P

IN1SW_N

IN1SW_P

IN2SW_N

IN2SW_P

IN1EXTB_P

IN1EXTB_N

IN2EXTB_P

IN2EXTB_N

IN2S_N

IN2S_P

G

D

S

Q13

2N7002

G

D

S

Q14

2N7002

G

D

S

Q20

2N7002

G

D

S

Q17

2N7002

Text

0603

C49

100n

11 : 12.Schematic

CH1-2

22 | Digimod 3004 PFC2 | User guide

1

2

3

4

5

6

7

8

CH_3-4.SchDoc

File:

Designed by:

Approved by:

Power soft S .p.A.

Via E. Conti , 5

50018 Scand icci ( FI)

Italy

www.p ower soft. it

Tel. [phone]

Fax: [phone]

e-mai l: tec h@pow erso ft.it

Title:

Project:

Powersoft Code:

Date:

Evalua tion Boar d

LITEMO D4HC

This document contains proprietary informations

and patents which is the property of Powersoft S.p.A.,

that may not be disclosed, reproduced or used

without express written consent from Powersoft S.p.A.

[No Variations]

R&D Dept

15/12 /201 7

1 1

SizeSheet of

A2

Rel.:

RedD7HSMH-C265

+12VC

nPROTECTEXT3

Green

D12

HSMG-C265

+12VC

RDY3

0603

R150

10K

0603

R166

10K

0603

R161

1M

0603

R171

1M

RedD8HSMH-C265

+12VC

nPROTECTEXT4

Green

D10

HSMG-C265

+12VC

RDY4

0603

R151

10K

0603

R164

10K

0603

R162

1M

0603

R168

1M

BIAS1

1

DBIAS1

2

IN1+

3

IN1-

4

OUT1

5

V-

6

BUFIN1

7

BUFOUT1

8

BIAS2

16

DBIAS2

15

IN2+

14

IN2-

13

OUT2

12

V+

11

BUFIN2

10

BUFOUT2

9

U17

LM13700M

Q7

BC807-25L

Q9

BC807-25L

0603

C45

1u

0603

R106

4K7

0603

R112

22K

0603

R113

100K

0603

R88

2K2

0603

R100

22K

0603

R95

470R

0603

R93

1K

0603

R96

47R

Q8

BC807-25L

0603

R109

22K

32

D3B

BAS28

41

D3A

BAS28

-12SW

+12SW

+12SW

-12SW

0603

C34

100p

0603

R97

47R

0603

R108

10K

0603

R92

18K

0603

R85

15K

0603

R82

15K

0603

R94

2K2

0603

R104

15K

Q12

BC807-25L

Q10

BC807-25L

0603

C54

1u

0603

R124

4K7

0603

R119

22K

0603

R120

100K

0603

R142

2K2

0603

R134

22K

0603

R140

470R

0603

R138

1K

0603

R135

47R

Q11

BC807-25L

0603

R122

22K

4 1

D4A

BAS28

32

D4B

BAS28

+12SW

-12SW

0603

C60

100p

0603

R136

47R

0603

R129

10K

0603

R141

18K

0603

R147

15K

0603

R153

15K

0603

R139

2K2

0603

R130

15K

CLIPLVL3

PWMLIM34

CLIPLVL4

PWMLIM34

1206

C36 10u

1206

C40 10u

1206

C57 10u

1206

C58 10u

0603

R86

4K7

0603

R81

4K7

0603

R146

4K7

0603

R154

4K7

TP33

IN4EUNBAL

+/-0.1%

0603

R84

4K7

+/-0.1%

0603

R91

4K7

+/-0.1% 0603

R79

10K

0603

R83

330R

0603

R90

330R

+/-0.1%

0603

R101

10K

+/-0.1% 0603

R98

4K7

+/-0.1%

0603

R89

4K7

0603

C33

22p

0603

C44

22p

0603

C43

100p

0603

C37

1n

0603

C35

100p

+/-0.1%

0603

R145

4K7

+/-0.1%

0603

R156

4K7

+/-0.1% 0603

R137

10K

0603

R144

330R

0603

R155

330R

+/-0.1%

0603

R158

10K

+/-0.1% 0603

R157

4K7

+/-0.1%

0603

R152

4K7

0603

C55

22p

0603

C61

22p

0603

C62

100p

0603

C59

1n

0603

C56

100p

IN3EUNBAL

IN3_P

IN3_N

IN4_N

IN4_P

0603

R80

47R

0603

R103

47R

0603

C38

100p

0603

R99

2K2

0603

R102

2K2

IN3EUNBAL

IN3EXT_N

IN3EXT_P

0603

R117

47R

0603

R126

47R

0603

C53

100p

0603

R121

2K2

0603

R123

2K2

IN4EUNBAL

IN4EXT_N

IN4EXT_P

IN3EXT_P

IN3EXT_N

VOUT3MON

TEMPMON34

+12VB

-12VB

MUTE3

MUTE4

-12VB

+12VB

TEMPMON34

VOUT4MON

IN4EXT_N

IN4EXT_P

IOUT4MON

SDPWS34

SDPWS34

RDY3

RDY4

IOUT3MON

VMON34P

VMON34P

VMON34N

VMON34N

nPROTECTEXT3

nPROTECTEXT4

+5VB

+5VB

0603

R107

10R

0603

R125

10R

TP21

TP19

TP22

TP27

TP32

TP49 TP50

IN3_UNBAL

IN4_UNBAL

CH 3-4 Bridge

TP23

TP31

TP37

TP38

TP24

TP25

TP26

TP28

TP29

TP30

3

2

1

SO8

U6A

NE5532D

5

6

7

SO8

U6B

NE5532D

3

2

1

SO8

U9A

NE5532D

5

6

7

SO8

U9B

NE5532D

3

2

1

SO8

U13A

NE5532D

5

6

7

SO8

U13B

NE5532D

3

2

1

SO8

U14A

NE5532D

5

6

7

SO8

U14B

NE5532D

123456789

10111213141516171819202122232425262728293031323334

PL2

DS1011-34SBSiB7-B

2

3

1

PUSH

231

FEMALE

G

SO3

NC3FAAV-2

2

3

1

PUSH

231

FEMALE

G

SO4

NC3FAAV-2

TP67

TP68

TP70

TP71

5

6

7

SO8

U7B

NE5532D

3

2

1

SO8

U7A

NE5532D

CLIPLVL34

CLIPLVL34

Amber

D27

HSMA-C265

Amber

D26

HSMA-C265

0603

R115

4K7

0603

R116

4K7

0603

R45

10K

0603

R46

1M

0603

C8

100p

0603

R50

3K3

VMON34N

VMON34N_BUFF

1

2

3

U3A

TL072CD

TP1

7

6

5U3B

TL072CD

VMON34N_BUFF

CLIPLVL34

0603

C19

100p

SDPWS34

TP20

1

2

3

SO-14

U19A

LMV324ID

7

6

5

SO-14

U19B

LMV324ID

8

9

10

SO-14

U19C

LMV324ID

14

13

12

SO-14

U19D

LMV324ID

0603

R220

1K6

0603

R210

1K33

0603

R133

1K8

0603

R118

4K7

0603

R216

100R

0603

R214

100R

TEMPMON34

+5VD

0603

R131

10K

0603

R208

10K

0603

R212

10K

0603

R218

10K

Green

D29

HSMG-C265

Red

D35

HSMH-C265

Amber

D33

HSMA-C265

Amber

D31

HSMA-C265

+5VD

0603

R35

10K

MUTE3 MUTE4

0603

R34

4K7

D37

BAV20WS-7-F

TP10

0603

R51

4K3

7

6

5

U21B

TL072CD

PWMLIM34

TEMPMON34

85°C 0.826V

75°C 0.93V

50°C 1.65V

25°C 2.56V

0603

R110

220K

0603

R111

100K

123

SH

SW11

OS102011MS2QN1

123

SH

SW8

OS102011MS2QN1

123

SH

SW9

OS102011MS2QN1

123

SH

456

SW13

OS202011MS2QN1

123

SH

456

SW12

OS202011MS2QN1

123

SH

456

SW14

OS202011MS2QN1

ReverseCH3

ReverseCH4

0603

C75

100p

MUTE3 MUTE4

G

D

S

Q26

2N7002

G

D

S

Q28

2N7002

SD

1206

R232

0R

1206

R231

0R

0603

R236

1M

0603

R238

1M

AUXVSEL

0603

C80

1u

123

SH

456

SW5

OS202011MS2QN1

Vref34

Vref

Vref34

1
2
3

SH

4
5
6

SW18

OS202011MS2QN1

IN3_P

IN3_N

1
2
3

SH

4
5
6

SW20

OS202011MS2QN1

IN4_P

IN4_N

Green

D41

HSMG-C265

-12SW

+12SW

0603

R246

2K2

78

1825057-7

SW22D

56

1825057-7

SW22C

34

1825057-7

SW22B

12

1825057-7

SW22A

IN3S_N

IN3S_P

IN4BS_N

IN4BS_P

IN3SW_N

IN3SW_P

IN4SW_P

IN3EXTB_P

IN3EXTB_N

IN4EXTB_P

IN4EXTB_N

IN4S_N

IN4S_P

IN4SW_N

G

D

S

Q15

2N7002

G

D

S

Q16

2N7002

G

D

S

Q21

2N7002

G

D

S

Q18

2N7002

Text

0603

C81

100n

CH3-4

Evaluation Board - KTP00477 | 23

1

2

3

4

5

6

7

C C

B B

A A

0603

C14

100n

+12SW

-12SW

0603

C13

100n

+12SW

-12SW

-12VC -12SW

0603

R192

1K2

0603

R172

1K2

Q22

BC807-25L

+12SW+12VC

AUXVSEL= GND -> 12V

AUXVSEL= OPEN -> 15V

0603

R174

2K2

Green

D15

HSMG-C265

Green

D14

HSMG-C265

Green

D17

HSMG-C265

0603

R173

4K7

0603

R193

4K7

EnergySave ON

EnergySave OFF

Q19

BC807-25L

Q25

BC817-25

G

D

S

Q24

2N7002

0603

R178

4K7

1

2

3

SO-14

U20A

LMV324ID

7

6

5

SO-14

U20B

LMV324ID

8

9

10

SO-14

U20C

LMV324ID

14

13

12

SO-14

U20D

LMV324ID

GND

11

Vcc

4

SO-14

U20E

LMV324ID

0603

R196

100K

IN1_P

IN2_P

IN3_P

IN4_P

0603

R202

100K

0603

R205

100K

0603

R206

100K

0603

R169

100K

IN1_N

IN2_N

IN3_N

IN4_N

0603

R177

100K

0603

R181

100K

0603

R183

100K

1206

C66 10u

1206

C70 10u

0603

C64

100p

0603

R182

220K

0603

C72

100p

0603

R199

220K

0603

R195

10K

0603

R185

10K

0603

R186

100K

0603

R200

100K

BIAS

BIAS

1206

C69 10u

0603

R189

2K2

0603

C65

100p

0603

R187

100K

0603

R194

10K

0603

C63

100n

+5VC

+5VC

0603

R197

10K

0603

R203

10K

0603

C73

1u

0603

R190

22K

1206

C71

10u

3 2

D16B

BAS28

0603

R191

100K

0603

R204

100K

0603

R198

2K2

41

D16A

BAS28

0603

C67

1n

0603

R179

100K

0603

R201

2K7

0603

C74

1u

0603

R176

47R

0603

C68

1u

SignalPre

G

D

S

Q23

2N7002

SignalPre

0603

R184

100K

Green

D13

HSMG-C265

0603

R180

2K2

0603

R188

1M

0603

R175

10K

0603

C48

100n

+12SW

-12SW

0603

C47

100n

+12SW

-12SW

0603

C26

100n

+12SW

-12SW

0603

C39

100n

+12SW

-12SW

0603

C17

100n

+12SW

-12SW

0603

C52

100n

+12SW

-12SW

0603

C12

100n

+12SW

-12SW

0603

C46

100n

+12SW

-12SW

TP44

TP42

TP41

TP53

TP52

TP43

Vcc-

4

Vcc+

8

SO8

U1C

NE5532D

Vcc-

4

Vcc+

8

SO8

U2C

NE5532D

Vcc-

4

Vcc+

8

SO8

U4C

NE5532D

Vcc-

4

Vcc+

8

SO8

U6C

NE5532D

Vcc-

4

Vcc+

8

SO8

U7C

NE5532D

Vcc-

4

Vcc+

8

SO8

U9C

NE5532D

Vcc-

4

Vcc+

8

SO8

U11C

NE5532D

Vcc-

4

Vcc+

8

SO8

U12C

NE5532D

Vcc-

4

Vcc+

8

SO8

U13C

NE5532D

Vcc-

4

Vcc+

8

SO8

U14C

NE5532D

0603

C16

100n

+12SW

-12SW

Vcc-

4

Vcc+

8

U3C

TL072CD

D20

SS14

D25

SS14

D21

SS14

D24

SS14

D18

SS14

D19

SS14

GND

11

Vcc

4

SO-14

U19E

LMV324ID

SOT-89

IN

3

OUT

1

GND

2

U8

L78L05ABUTR

GND

11

Vcc

4

SO-14

U18E

LMV324ID

+5VD

0603

C42

100n

0603

C41

100n

0603

C32

100n

+12SW

-12SW

Vcc-

4

Vcc+

8

U21C

TL072CD

Text

0603

C50

100n

+12SW

-12SW

Vcc-

4

Vcc+

8

U15C

TL072CD

123

SH

SW15

OS102011MS2QN1

Text

Text

Text

63V

C76

100uF

63V

C77

100uF

0603

R221

3M3

0603

R223

1M

0603

C78

100n

2.5V

0.65V

Gv = 2,2

Gv = 10

0603

R234

1M

123

SH

SW16

OS102011MS2QN1

0603

R235

100K

D38

BAV21W-7-F

WAKE_UP

WAKE_UP

L1

100u

L2

100u

Vref

+5VC

Green

D39

HSMG-C265

0603

R241

2K2

+12SW

+5VC

+5VD

+5VC

+12SW

+5VC

+12SW

+5VA +5VB +12VA +12VB

-12VA -12VB+5VC +12VC

-12VC

+5VD

0603

R243

100K

0603

R244

100K

0603

R242

0R

AUXVSEL

0603

C15

100n

0603

R2501K0603

R2491K0603

R2481K0603

R2471K0603

R2401K0603

R1431K0603

R871K0603

R611K0603R81K

15 16

1825057-7

SW17H

13 14

1825057-7

SW17G

11 12

1825057-7

SW17F

9 10

1825057-7

SW17E

7 8

1825057-7

SW17D

5 6

1825057-7

SW17C

3 4

1825057-7

SW17B

1 2

1825057-7

SW17A

TP14

G

D

S

Q30

2N7002

SOT23-5

2

53

4

U5

SN74LVC1G04DBVR

0603

R222

100R

SD

0603

R224

1K

0603

R225

1K

0603

C86

100n

+12SW-12SW

0603

C82

100n

0603

C83

100n

+12SW-12SW

0603

C84

100n

0603

C85

100n

0603

R226

100K

0603

C87

10u

SD

11 : 13.Power + Energy Save

24 | Digimod 3004 PFC2 | User guide

Evaluation Board - KT000291

12

12 : 1.Switch functions

The KT000291 is a basic evaluation board adapting up to 4 XLR inputs into two Powersoft IDC 34 poles connectors. It
includes two switches able to parallel inputs into two paralleled couples. Additional test points help the user to monitor some
readout signals and provide some signals to the amplier.

FIGURE 17: KT000291 Evaluation Board

Switch Description

Swit ch1/2 Parallel inputs ch1 and ch2

Switch3/4 Parallel inputs ch3 and ch4

XLR Inputs Description

SO1 Input CH1
SO2 Input CH2
SO3 Input CH3
SO4 Input CH4

Evaluation Board - KT000291 | 25

Test Point Name type PL1/2 IDC 34 poles pin # Description

GND PWR 5,8,27,30 Secondary ground
MUTE 1/2 IN 15,20 Mute channels 1 and 2 (active low)
RX 232 1/2 - 2 reser ved
TX 232 1/2 - 3 reserved
+5VDC 1/2 PWR 4 +5V (Max absorption 0,1A)
GND PWR 5,8,27,30 Secondary ground
IN+1 IN 6 Positive input channel 1
IN -1 IN 7 Negative input channel 1
GND PWR 5,8,27,30 Secondary ground

SDPWS 1/2 IN 1

VOUT1MON OUT 9 Output voltage monitor channel 1 (20V/V)
PROTECT1 OUT 10 Protect status channel 1 (active low)
IOUT1MON OUT 11 Output current monitor channel 1 (7,5V/V)
TEMPMON 1/2 OUT 12, 23 Temperature monitor Channels 1/2
+12 V D C 1/ 2 PWR 13,2 2 Positive Auxiliary Power Supply

-12V D C 1/2 PWR 14, 21 Negative Auxiliary Power Supply
+VCCMON 1/2 OUT 16 ,19 Positive Rail voltage monitor (20V/V)

-VCCMON 1/2 OUT 17,18 Negative Rail voltage monitor (20V/V)

Shut Down Power Supply (provide a voltage 3V3<V<12V to shut down the
module)

PL1 Signals on PL1/2 connector (channels 1 and 2)

Test Point Name type PL1/2 IDC 34 poles pin # Description

GND PWR 5,8,27,30 Secondary ground
MUTE 1/2 IN 15,20 Mute channels 1 and 2 (active low)
RX 232 1/2 - 2 reser ved
TX 232 1/2 - 3 reserved
+5VDC 1/2 PWR 4 +5V (Max absorption 0,1A)
GND PWR 5,8,27,30 Secondary ground
IN+2 IN 29 Positive input channel 2
IN-2 IN 28 Negative input channel 2
GND PWR 5,8,27,30 Secondary ground

SDPWS 1/2 IN 1

VOUT2MON OUT 26 Output voltage monitor channel 2 (20V/V)
PROTECT2 OUT 25 Protect status channel 2 (active low)
IOUT2MON OUT 24 Output current monitor channel 2 (7,5V/V)
TEMPMON 1/2 OUT 12, 23 Temperature monitor Channels 1/2
+12 V D C 1/ 2 PWR 13,2 2 Positive Auxiliary Power Supply

-12V D C 1/2 PWR 14, 21 Negative Auxiliary Power Supply
+VCCMON 1/2 OUT 16 ,19 Positive Rail voltage monitor (20V/V)

-VCCMON 1/2 OUT 17,18 Negative Rail voltage monitor (20V/V)

Shut Down Power Supply (provide a voltage 3V3<V<12V to shut down the
module)

PL2 Signals on PL1/2 connector (channels 1 and 2)

26 | Digimod 3004 PFC2 | User guide

Test Point Name type PL3/4 IDC 34 poles pin # Description

GND PWR 5,8,27,30 Secondary ground
MUTE 3/4 IN 15, 20 Mute channels 3 and 4 (active low)
RX 232 3/4 - 2 reser ved
TX232 3/4 - 3 reser ved
+5VDC 3/4 PWR 4 +5V (Max absorption 0,1A)
GND PWR 5,8,27,30 Secondary ground
IN+3 IN 6 Positive input channel 3
IN-3 IN 7 Negative input channel 3
GND PWR 5,8,27,30 Secondary ground

SDPWS 3/4 IN 1

VOUT3MON OUT 9 Output voltage monitor channel 1 (20V/V)
PROTECT3 OUT 10 Protect status channel 3 (active low)
IOUT3MON OUT 11 Output current monitor channel 3 (7,5V/V)
TEMPMON 3/4 OUT 12, 23 Temperature monitor Channels 3/4
+12 V D C 3 /4 PWR 13,2 2 Positive Auxiliary Power Supply

-12V D C 3/4 PWR 14, 21 Negative Auxiliary Power Supply
+VCC MON 3/4 OUT 16,19 Positive Rail voltage monitor (20V/V)

-VCCMON 3/4 OUT 17,18 Negative Rail voltage monitor (20V/V)

Shut Down Power Supply (provide a voltage 3V3<V<12V to shut down the
module)

PL3 Signals on PL3/4connector (channels 3 and 4)

Test Point Name type PL3/4 IDC 34 poles pin # Description

GND PWR 5,8,27,30 Secondary ground
MUTE 3/4 IN 15, 20 Mute channels 3 and 4 (active low)
RX 232 3/4 - 2 reser ved
TX232 3/4 - 3 reser ved
+5VDC 3/4 PWR 4 +5V (Max absorption 0,1A)
GND PWR 5,8,27,30 Secondary ground
IN+4 IN 29 Positive input channel 4
IN-4 IN 28 Negative input channel 4
GND PWR 5,8,27,30 Secondary ground

SDPWS 3/4 IN 1

VOUT4MON OUT 26 Output voltage monitor channel 4 (20V/V)
PR O TECT4 OUT 25 Protect status channel 4 (active low)
IOUT4MON OUT 24 Output current monitor channel 4 (7,5V/V)
TEMPMON 3/4 OUT 12, 23 Temperature monitor Channels 3/4
+12 V D C 3 /4 PWR 13,2 2 Positive Auxiliary Power Supply

-12V D C 3/4 PWR 14, 21 Negative Auxiliary Power Supply
+VCC MON 3/4 OUT 16,19 Positive Rail voltage monitor (20V/V)

-VCCMON 3/4 OUT 17,18 Negative Rail voltage monitor (20V/V)

Shut Down Power Supply (provide a voltage 3V3<V<12V to shut down the
module)

PL4 Signals on PL3/4connector (channels 3 and 4)

Evaluation Board - KT000291 | 27

Support and warranty

13

13 : 1.Service

There are no user-serviceable parts in your amplier.
Refer servicing to qualied technical personnel. In addi­tion to having an in-house service department, Powersoft
supports a network of authorized service centers. If your
amplier needs repair contact your Powersoft dealer (or
distributor). You can also contact the Powersoft Technical
Service department to obtain the location of the nearest
authorized service center.

13 : 2.Warranty

Powersoft guarantees its manufactured products to be
free from defective components and factory workmanship
for a period of 12 (twelve) months, starting from the date
printed in the invoice of purchase.

All warranty repairs and retrots must be performed at
Powersoft facilities or at an Authorized Service Center at
no cost for the purchaser. Warranty exclusion: Powersoft’s
warranty does not cover product malfunctioning or failure
caused by: misuse, abuse, repair work or alterations per­formed by non-authorized personnel, incorrect connec­tions, exposure to harsh weather conditions, mechanical
damages (including shipping accidents), and normal wear
and tear.

Powersoft will perform warranty services provided that
the product is not damaged during transportation.

13 : 2.1. Return of Goods

Goods can be returned to Powersoft only after they
have been granted a Return Merchandise Authorization –
RMA – number to be attached to the external packaging.
Powersoft (or its Authorized Service Center) has the right to
refuse any returned good without a RMA number.

13 : 2.2. Repair or replacement

Powersoft reserves the right to repair or replace any
defective goods covered by product warranty at its sole
discretion and as it deems best.

13 : 2.3. Cost and responsibility of transport

The purchaser (or end user/customer) is solely re­sponsible for all transportation costs and risks associated
with sending warranty covered goods to Powersoft or its
Authorized Service Center. Powersoft will assume full re­sponsibility and cover all costs incurred to send the goods
back to the purchaser (or end user/customer).

13 : 3.Assistance

Even though most product malfunctioning can be solved
at your premises through Powersoft Customer Care or
your direct knowledge, occasionally, due the nature of the
failure, it might be necessary to return defective products
to Powersoft for repair. In the latter case, before shipping,
you are kindly asked to follow step by step the procedure
described below:

 Obtain the “Defect Report Form” by contacting our

Customer Care Department via email: service@

powersoft.it or download the“Defect Report Form”.

 Fill out one “Defect Report form” for each returned

item (the form is an editable tab guided document)
and save as your name, amp model and serial number
(for example: distributorname-MDRIVE-17345.
doc) providing all required information except the
RMA code/s and send it to [e-mail] for
Powersoft approval.

 In case of defect reports approved by the Powersoft

Customer Service Representative you will receive
an RMA authorization code (one RMA code for each
returning device). Upon receiving the RMA code
you must package the unit and attach the RMA
code outside the pack, protected in a waterproof
transparent envelope so it is clearly visible.

All returning items must be shipped to the following
address:

Powersoft S.p.A.

Via Cadolingi, 13

50018 Scandicci (FI) Italy

In case of shipment from countries NOT belonging
to the European Community make sure you have
also followed the instructions described in the
document available for download at the TEMPORARY
EXPORTATION / IMPORTATION PROCEDURE link at

http://www.powersoft-audio.com/en/support/service.

Thank you for your understanding and cooperation and
continued support as we work to improve our partnership.

28 | Digimod 3004 PFC2 | User guide

Specifications

14

General

Number of channels 4 in / 4 out

Output power

Maximum output power per channel @ 4 Ω 2000 W

Maximum output power per channel @ 8 Ω 1000 W

Maximum output power per channel @ 16 Ω 600 W

Maximum output power @ 8 Ω Bridged 3000 W

Maximum output power @ 16 Ω Bridged 2000 W

Max output voltage 150 V

Max output current 54 A

peak

peak

Audio

Gain

Frequency response 20 Hz - 20 kHz ( +0/-1 dB) @ 1 W, 8 �

S/N ratio 115 dB (A weighted)

Crosstalk separation -70 dB @ 1 kHz (4 �)

Input sensitivity @ 8� 1.6 V / +6 dBu

Max input level 2.7 V / +10.8 dBu @ 32 dB gain

Input impedance 10 k� balanced

THD+N

DIM100

Slew rate 50 V/µs @ 8 �, input lter bypassed

Damping factor > 500 @ 100 Hz

selectable: 32 dB, 38 dB

(x40, x80 voltage gain respectively)

< 0.09% from 0.1 W to full power

(typically <0.05%)

< 0.05% from 0.1 W to full powe r

(typically <0.002%)

AC Mains Power

Power supply

Nominal power requirement AC 100 V - 240 V, 50/60 Hz

Operating voltage AC 90 - 264 V

Power factor cos > 0.90 @ 4 � full power

Consumption

1/8 of max output power @ 8 � 600 VA

Universal, regulated switch mode with

PFC (power factor correction)

AUX supplies

Max aux supply current draw @ ±12 V 500 mA

Thermal

Environmental operating
temperature

Thermal dissipation Fan, variable speed, temperature controlled

I/8 of max power @ 4 Ω 508 BTU/h 128 kcal/h

I/4 of max power @ 4 Ω 956 BTU/h 241 kcal/h

I/8 of max power @ 4 Ω 621 BTU/ h 156 kcal/h

I/4 of max power @ 4 Ω 1154 BTU/h 290 kcal/h

0° - 40° C / 32° - 104° F

@ 230 V

@ 115 V

Construction

Dimensions (L x W x H)

Weight 2.4 kg (5.3 lb)

309 mm x 122 mm x 79 mm

12” x 4.8” x 3.1”

Specifications | 29

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Support and warranty | 30

Powersoft S.p.A.

Via Enrico Conti, 5

50018 Scandicci (FI) Italy

Tel: [phone]

Fax: [phone]

General inquiries: [e-mail]

Sales: [e-mail]

Application & technical support: [e-mail]

Service & maintenance: [e-mail]

Compliance questions: [e-mail]

powersoft-audio.com