powersoft K2 DSP+AESOP, K3 DSP+AESOP, K6 DSP+AESOP, K8 DSP+AESOP, K10 DSP+AESOP Quick Manual

Keep this manual

for future reference

©2016 Powersoft

K Series

Série K
Serie K

DO000208.00 R00

QUICK GUIDE

GUIDE RAPIDE

GUÍA RÁPIDA

K2, K3
K2 DSP+AESOP, K3 DSP+AESOP

K6, K8, K10
K6 DSP+AESOP, K8 DSP+AESOP, K10 DSP+AESOP

K20,
K20 DSP+AESOP

powersoft_KSeries_qguide_mul_v1.0

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)

Español EnglishFrançaise

20

40

60

K Series

Série K
Serie K

Table of contents 3
Table des matières 4
Tabla de contenido 5
Regulatory information 19

K Series | 1

Page intentionally left blank

2 | K Series

Table of contents

1. Important safety instructions 20

2. K Series 21

2 : 1.Welcome 21
2 : 2.Unpacking & checking for shipping damage 21
2 : 3.Disposal of the packaging material 21
2 : 4.List of image panels 21

3. Installation 22

3 : 1.Location 22
3 : 2.Cooling 22
3 : 3.Cleaning 22
3 : 4.AC main s suppl y 22
3 : 5.Precaution s rega rding ins tallat ion 23

4. Connections 23

4 : 1.Signal grounding 23
4 : 2.Analog audio input connections 23
4 : 3.Anal og line o utput 23
4 : 4.Digital I nput 23
4 : 5.AE SOP 24
4 : 6.Loudspeaker connections 24

4 : 6.1. Bridge-tied load 24

4 : 7.V Ext 24
4 : 8.RS-4 85 connection 24
4 : 9.Ethernet co nnection s 24

5. LEDs and display menu 25

5 : 1.LED chart 25
5 : 2.Front dis play 25

5 : 2.1. How to navigate the main menu 25

6. Settings 26

6 : 1.Amplifier settings: Input Gain/Sensitivity 26
6 : 2.Amplifier settings: Input select 26
6 : 3.Amplifier settings: Max output voltage 26
6 : 4.Amplifier settings: Max mains current 26
6 : 5.Amplifier settings: Clip limiter CH1/CH2 26
6 : 6.Amplifier settings: Gate CH1/CH2 26
6 : 7.Amplifier settings: Mute at power on 26
6 : 8.Amplifier settings: Idle mode 27
6 : 9.DSP Settings: Common settings 27

6 : 9.1. Source selection 27
6 : 9.2. AE S 3 27
6 : 9.3. Cro ss limit 28
6 : 9.4. Soun d speed (m/s) 28

6 : 10.DSP Settings: Channel settings 28

6 : 10.1. EQs 28
6 : 10.2. Filte rs LP and HP 28
6 : 10.3. Polar it y 28
6 : 10.4. Ch Delay (us) 28
6 : 10.5. Gain 28

6 : 10.6. Peak Limiter et Power Limiter 29
6 : 10.7. Damping Con tro l 31

6 : 11.DSP Settings: Ch1 setup/Ch2 setup 32

6 : 11.1. Aux Dl y (ms) 32
6 : 11.2. Diagnosti cs 32

6 : 12.DSP Settings: Input EQ 32
6 : 13.DSP Settings: Reset input section 32
6 : 14.DSP Settings: Reset output section 32

7. Networking 33

7 : 1.AESOP 33

7 : 1.1. Data stream 33
7 : 1.2. Audio 33
7 : 1.3. Etherne t inter nal swi tch 33
7 : 1.4. Forwar ding an d repeat er mode s 33

7 : 2.Networ k set ting s 33

8. Display 34

8 : 1.Display: Output me ters 34
8 : 2.Display: Temperature 34
8 : 3.Display: Main s meter s 34
8 : 4.Display: A mplifier name 34

9. Local presets 35

9 : 1.Local preset: Locked presets 35
9 : 2.Local preset: Locked bank size 35
9 : 3.Local preset: Recall local preset 35
9 : 4.Local preset:Save local preset 35

9 : 4.1. Save to an empty slot 35
9 : 4.2. Ove r wri ting an exis ting pr ese t 35

9 : 5.Local preset: Change lock code 35
9 : 6.Local preset: Erase all presets 35

10. Setup 36

10 : 1.Setup: Har dware in fo 36
10 : 2.Setup: Hardwar e monit or 36
10 : 3.Setup; LCD c ontra st 36
10 : 4.Setup: Set the keylock code 36
10 : 5.Setup: Single channel muting 36

11. Software 37

11 : 1.Armonía Pro Audio Suite 37

11 : 1.1. Net wo rk ing 37

11 : 2.Third par ty softwa re 37

12. SmartCard 38

12 : 1.Firmware update 38
12 : 2.Step-Up c ard 38

13. Warranty and assistance 38

13 : 1.Warranty 38

13 : 1.1. Product warra nt y 38
13 : 1.2. Return of Goods 38
13 : 1.3. Repair or replaceme nt 38
13 : 1.4. Cost and responsibility of transport 38

13 : 2.Assist ance 38

K Series | 3

Table des matières

1. Importantes instructions de sécurité 40

2. Série K 41

2 : 1.Bienvenue 41
2 : 2.Déballage et vérification des dommages de transport 41
2 : 3.Élimination des produits d’emballage 41
2 : 4.Liste des panneaux d’images 41

3. Installation 42

3 : 1.Emplacement 42
3 : 2.Refroidis sement 42
3 : 3.Nettoyage 42
3 : 4.Aliment ation secteur CA 42
3 : 5.Précautions relatives à l’installation 43

4. Connexions 43

4 : 1.Mise à la masse 43
4 : 2.Connexions d’entrée audio analogiques 43
4 : 3.Sortie de ligne analogiques 43
4 : 4.Connexions audio numériques d’entrée 43
4 : 5.AE SOP 44
4 : 6.Loudspeaker connections 44

4 : 6.1. Connexion en mode ponté 44

4 : 7.V Ext 44
4 : 8.Connexion sér ielle 44
4 : 9.Connexion Ethern et 44

5. LED et le menu sur écran 45

5 : 1.Tableau des L ED 45
5 : 2.Ecran p rincipal 45

5 : 2.1. How to navigate the main menu 45

6. Settings 46

6 : 1.Amplifier settings: Input Gain/Sensitivity 46
6 : 2.Amplifier settings: Input select 46
6 : 3.Amplifier settings: Max output voltage 46
6 : 4.Amplifier settings: Max mains current 46
6 : 5.Amplifier settings: Clip limiter CH1/CH2 46
6 : 6.Amplifier settings: Gate CH1/CH2 46
6 : 7.Amplifier settings: Mute on power on 47
6 : 8.Amplifier settings: Idle mode 47
6 : 9.DSP Settings: Common settings 47

6 : 9.1. Source selection 47
6 : 9.2. AE S 3 47
6 : 9.3. Cro ss limit 48
6 : 9.4. Soun d speed (m/s) 48

6 : 10.DSP Settings: Channel settings 48

6 : 10.1. EQs (Egalis eur s) 48
6 : 10.2. Filte rs LP et HP 48
6 : 10.3. Polar it y 49
6 : 10.4. Ch Delay (us) 49
6 : 10.5. Gain 49

6 : 10.6. Peak Limiter et Power Limiter 49
6 : 10.7. Damping Con tro l 52

6 : 11.DSP Settings: Ch1 setup/Ch2 setup 52

6 : 11.1. Aux Dl y (ms) 52
6 : 11.2. Diagnosti c 52

6 : 12.Input EQ 53
6 : 13.Reset input sect ion 53
6 : 14.Reset output s ection 53

7. Réseau 53

7 : 1.AESOP 53

7 : 1.1. Data stream 53
7 : 1.2. Audio 53
7 : 1.3. Etherne t inter nal swi tch 54
7 : 1.4. Modes For war ding et Repe ater 54

7 : 2.Networ k set ting s 54

8. Display 55

9 : 1.Display: Output me ters 55
9 : 2.Display: Temperature 55
9 : 3.Display: Main s meter s 55
9 : 4.Display: A mplifier name 55

9. Local Preset 55

9 : 5.Local preset: Locked presets 55
9 : 6.Local preset: Locked bank size 55
9 : 7.Local preset: Recall local preset 55
9 : 8.Local preset: Save local preset 55

9 : 8.1. Sauvegardez dans une position vide 55
9 : 8.2. Ec ra seme nt d’un préré glag e exist an t 55

10. Setup 56

10 : 1.Setup: Har dware in fo 56
10 : 2.Setup: Hardwar e monit or 56
9 : 9.Local preset: Change lock code 56
9 : 10.Local preset: Erase all presets 56
10 : 3.Setup: LCD c ontra st 57
10 : 4.Setup: Set the keylock code 57
10 : 5.Setup: Single channel muting 57

11. Logiciel 57

11 : 1.Armonía Pro Audio Suite 57

11 : 1.1. Mise en rése au 57

12. SmartCard 58

12 : 1.Mise à jour du firmware 58
12 : 2.Carte de S tep- Up 58
11 : 2.Commandes de logiciels tiers 58

13. Garantie et Asistance 59

13 : 1.Garantie 59

13 : 1.1. Garantie prod uit 59
13 : 1.2. Renvoi des marchan dis es 59
13 : 1.3. Réparatio n ou remplac emen t 59
13 : 1.4. Coûts et responsabilité lors du transport 59

13 : 2.Assist ance 59

4 | K Series

Tabla de contenido

1. Instrucciones de seguridad importantes 60

2. Serie K 61

2 : 1.Bienvenido 61
2 : 2.Desembalaje y verificación de daños durante el transporte 61
2 : 3.Eliminación de los materiales del embalaje 61
2 : 4.Lista de paneles de imágenes 61

3. Instalación 62

3 : 1.Ubicación 62
3 : 2.Refrigera ción 62
3 : 3.Limpieza 62
3 : 4.Alimentación de red CA 62
3 : 5.Precauciones para la instalación 63

4. Conexiones 63

4 : 1.Masa de la señal 63
4 : 2.Conexiones de entrada analógica de audio 63
4 : 3.Salida de línea analógica 63
4 : 4.Entrada digital 63
4 : 5.AE SOP 64
4 : 6.Conexiones de altavoz 64

4 : 6.1. Carga unida por puente 64

4 : 7.V Ext 64
4 : 8.Conexión RS -4 85 64
4 : 9.Conexiones Ethernet 64

5. LED y pantalla de menú 65

5 : 1.Cuadro LED 65
5 : 2.Pantalla Frontal 65

5 : 2.1. Cómo navegar por el menú principal 65

6. Settings 66

6 : 1.Amplifier settings: Input Gain/Sensitivity 66
6 : 2.Amplifier settings: Input select 66
6 : 3.Amplifier settings: Max output voltage 66
6 : 4.Amplifier settings: Max mains current 66
6 : 5.mplifier settings: Clip limiter CH1/CH2 66
6 : 6.Amplifier settings: Gate CH1/CH2 66
6 : 7.Amplifier settings: Mute at power on 67
6 : 8.Amplifier settings: Idle mode 67
6 : 9.DSP Settings: Common settings 67

6 : 9.1. Source selection 67
6 : 9.2. AE S 3 67
6 : 9.3. Cro ss limit 68
6 : 9.4. Sound speed (m/s) (velocidad de sonido) 68

6 : 10.DSP Settings: Channel settings 68

6 : 10.1. EQ (Ecualizadores) 68
6 : 10.2. Filte rs LP and HP 68
6 : 10.3. Polar it y 69
6 : 10.4. Ch Delay (us) 69
6 : 10.5. Gain (Gana nci a) 69

6 : 10.6. Peak Limiter et Power Limiter 69
6 : 10.7. Damping Con tro l 72

6 : 11.DSP Settings: Ch1 setup/Ch2 setup 72

6 : 11.1. Aux Dl y (ms) 72
6 : 11.2. Diagnosti cs 72

6 : 12.DSP Settings: Input EQ 73
6 : 13.DSP Settings: Reset input section 73
6 : 14.DSP Settings: Reset output section 73

7. Redes 73

7 : 1.AESOP 73

7 : 1.1. Flujo de datos 73
7 : 1.2. Audio 73

7 : 2.Networ k set ting s 74

7 : 1.3. Commut ado r inter no de Ether net 74
7 : 1.4. Modos de Forwarding e Repeater 74

8. Display 75

8 : 1.Display: Output me ters 75
8 : 2.Display: Temperature 75
8 : 3.Display: Main s meter s 75
8 : 4.Display: A mplifier name 75

9. Local Preset 75

9 : 1.Local preset: Locked presets 75
9 : 2.Local preset: Locked bank size 75
9 : 3.Local preset: Recall local preset 75
9 : 4.Local preset: Save local preset 75

9 : 4.1. Guardar en una ubicación vacía 75

10. Setup 76

10 : 1.Setup: Har dware in fo 76
10 : 2.Setup: Hardwar e monit or 76

9 : 4.2. So bre scr ibir un pred et ermi nado exis te nte 76

9 : 5.Local preset: Change lock code 76
9 : 6.Local preset: Erase all presets 76
10 : 3.Setup: LCD c ontra st 77
10 : 4.Setup: Set the keylock code 77
10 : 5.Setup: Single channel muting 77

11. Software 77

11 : 1.Armonía Pro Audio Suite 77

11 : 1.1. Rede s 77

12. SmartCard 78

12 : 1.Actualizac ión de firmware 78
12 : 2.Step-Up c ard 78
11 : 2.Software de terceros 78

13. Garantía y Asistencia 79

13 : 1.Garantía 79

13 : 1.1. Garantía del produ ct o 79
13 : 1.2. Devolucion es 79
13 : 1.3. Reparación o Reempl azo 79
13 : 1.4. Costo y Responsabilidad del Transporte 79

13 : 2.Asistencia 79

K Series | 5

A

K2, K3
K2 DSP + AESOP, K3 DSP + AESOP

465

32.2

496

456

5.9

482

439 44

32

6 | K Series

B

K6, K8, K10,
K6 DSP + AESOP, K8 DSP + AESOP, K10 DSP + AESOP
K20
K20 DSP + AESOP

465

32.2

465.4

472.4

5.9

482

440 44

32

K Series | 7

C

D

E

K2, K3

K2 DSP + AESOP, K3 DSP + AESOP

8 | K Series

A FB C D E G

1 2 93 5

14

4

13

6 7

12

8 10

11

Front panel

A. RJ45 plugs (either AESOP or RS485 ports according to

the amplifier configuration)
B. LED bar: signal metering channel 1
C. Main display
D. Smart Card slot
E. Multifunction buttons
F. LED bar: signal metering channel 2
G. Main switch

Rear panel

1. Mains inlet

2. Air vents

3. Serial ID selector for the RS485 port

(non AESOP version only)

4. RS485 serial port (non AESOP version only)

5. AES3/analog switch for input 2

6. Input 2: channel 2 analog input in analog mode or

AES3 input in AES3 mode, according to the position of

the switch in #5

7. Line output channel 2

8. Link button: link input from channels 1 and 2

9. Line output channel 1

10. Input 1: channel 1 analog input

11. Speaker connector: output channel 1

12. Speaker connector: output channel 2

13. Ethernet+AESOP ports (AESOP version only)

14. Vext: 12 VDC, 1A external voltage input (AESOP

version only)

Panneau avant

A. Connecteurs RJ45 (soit ports RS485 ou AESOP selon

la configuration de l’amplificateur)
B. Barre de LED : mesurer le signal du canal 1
C. Écran principal
D. Fente pour carte à puce
E. Touches multifonctions
F. Barre de LED : mesurer le signal du canal 1
G. Interrupteur principal

Panneau arrière

1. Entrée d’alimentation secteur

2. Bouches d’aération

3. Sélecteur d’ID série pour le port RS485

(Version non AESOP seulement)

4. Port série RS485 (version non AESOP seulement)

5. Commutateur AES3 / analogique pour l’entrée 2

6. Entrée 2 : le canal d’entrée 2 analogique en mode

analogique ou l’entrée AES3 en mode A ES3, selon la

position du commutateur à # 5

7. Sortie ligne canal 2

8. Bouton Link : lien entrée des canaux 1 et 2

9. Sor tie ligne canal 1

10. Entrée 1 : entrée analogique du canal 1

11. Connecteur de haut-parleur : sortie du canal 1

12. Connecteur de haut-parleur : sortie du canal 2

13. Ports Ethernet + AESOP (version AESOP seulement)

14. Vext : entrée de tension externe 12V DC, 1A

(version AESOP uniquement)

Panel Frontal

A. Conectores RJ45 (ya sea AESOP o puertos RS485 de

acuerdo con la configuración de amplificador)
B. Barra LED: señal del canal 1
C. Pantalla principal
D. Ranura de tarjeta inteligente
E. Multifunción
F. Barra LED: señal del canal 2
G. Interruptor principal de alimentación

Panel Posterior

1. Conector de red de alimentación AC

2. Salidas de aire

3. Selector de ID para el puerto RS485

(Versión no AESOP solamente)

4. Puerto RS485

(Versión no AESOP solamente)

5. Interruptor AES3/analógica para la entrada 2

6. Entrada 2: canal de entrada 2 análogo en modo

analógico o la entrada AES3 en el modo de AES3,

según la posición del conmutador en el # 5

7. Canal de salida de línea 2

8. Conmutador de enlace: enlace de entrada de los

canales 1 y 2

9. Canal de salida de línea 1

10. Entrada 1: canal de entrada 1 análogo

11. Conector de altavoz: canal de salida 1

12. Conector de altavoz: canal de salida 2

13. Puertos de ethernet+AESOP

(Versión AESOP solamente)

14. Vext: 12 VDC, 1A entrada de tensión externa

(Versión AESOP solamente)

English Française Español

K Series | 9

F

G

K6, K8, K10, K20

K6 DSP + AESOP, K8 DSP + AESOP, K10 DSP + AESOP, K20 DSP + AESOP

10 | K Series

1 2 4

12

3

11

5 6

10

7 8

9

English Française Español

Rear panel

1. Mains plug

2. Air vents

3. Serial ID selector for the RS485 port
(non AESOP version only)

4. RS485 serial port (non AESOP version only)

5. AES3/analog switch for input 2

6. Input 2: channel 2 analog input in analog mode or
AES3 input in AES3 mode, according to the position of
the switch in #5

7. Link button: link input from channels 1 and 2

8. Input 1: channel 1 analog input

9. Speaker connector: output channel 1

10. Speaker connector: output channel 2

11. Ethernet+AESOP ports (AESOP version only)

12. Vext: 12 VDC, 1A external voltage input (A ESOP
version only)

Panneau arrière

1. Entrée d’alimentation secteur

2. Bouches d’aération

3. Sélecteur d’ID série pour le port RS485
(Version non AESOP seulement)

4. Port série RS485 (version non AESOP seulement)

5. Commutateur AES3 / analogique pour l’entrée 2

6. Entrée 2 : le canal d’entrée 2 analogique en mode
analogique ou l’entrée AES3 en mode A ES3, selon la
position du commutateur à # 5

7. Bouton Link : lien entrée des canaux 1 et 2

8. Entrée 1 : entrée analogique du canal 1

9. Connecteur de haut-parleur : sortie du canal 1

10. Connecteur de haut-parleur : sortie du canal 2

11. Ports Ethernet + AESOP (version AESOP seulement)

12. Vext : entrée de tension externe 12V DC, 1A
(version AESOP uniquement)

Panel Posterior

1. Conector de red de alimentación AC

2. Salidas de aire

3. Selector de ID para el puerto RS485
(Versión no AESOP solamente)

4. Puerto RS485
(Versión no AESOP solamente)

5. Interruptor AES3/analógica para la entrada 2

6. Entrada 2: canal de entrada 2 análogo en modo
analógico o la entrada AES3 en el modo de AES3,
según la posición del conmutador en el # 5

7. Conmutador de enlace: enlace de entrada de los
canales 1 y 2

8. Entrada 1: canal de entrada 1 análogo

9. Conector de altavoz: canal de salida 1

10. Conector de altavoz: canal de salida 2

11. Puertos de ethernet+AESOP
(Versión AESOP solamente)

12. Vext: 12 VDC, 1A entrada de tensión externa
(Versión AESOP solamente)

K Series | 11

H

J K

I

1 2 3 4 5 6 7 8

Color code (TIA/EIA-568-B) Pin

ORANGE / WHITE 1

ORANGE 2

GREEN / WHITE 3

BLUE 4

BLUE / WHITE 5

GREEN 6

BROWN / WHITE 7

BROWN 8

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

1

S

2

R

3

T

COLD

COLD

GND

GND

Analog line output

XLR-F pinout

Pin 1 GND
Pin 2

HOT

Pin 3

COLD

HOT

1

2

3

COLD

GND

Bridge-tied load

speakON
connector
Channel 2

output

stage B

LINK

CHB +

CHB +
CHB –

CHB –

B

speakON
connector
Channel 1

output

stage A

CHA +

CHA +
CHA –

CHA –

A

CH1

CH2

Single-ended load

Single-ended load

speakON
connector
Channel 2

output

stage B

CHB +

CHB +
CHB –

CHB –

B

speakON
connector

Channel1

output

stage A

CHA +

CHA +
CHA –

CHA –

A

1+

2+

1–

2–

1+

2+

1–

2–

1+

2+

1–

2–

1+

2+

1–

2–

1+

2+

1–

2–

1+

2+

1–

2–

1+

2+

1–

2–

1+

2+

1–

2–

1

+
–
V

ext

GND

2 3 4 5 6 7 8

12 | K Series

RS485

Ethernet

K6, K8, K10, K20
K6 DSP + AESOP, K8 DSP + AESOP, K10 DSP + AESOP, K20 DSP + AESOP

K2, K3
K2 DSP + AESOP, K3 DSP + AESOP

Open the lock and
insert the plug

Ouvrir le verrou
et insérer la che

Abra el seguro y
conecte la clavija

Lock the plug

Bloquer la che

Asegure la clavija

L

ground

mains

ground

mains

N

Neutral

L

32 1

K Series | 13

M

lock

mute mute menu

CH1 READY READY CH2

V I VI

Display

Local presets

Setup

Menu

Settings

Amplier Settings
DSP Settings

1

Network Settings

2

Output meters
Temperature
Mains meters
Amplier name

Lock presets
Locked bank size
Recall local preset
Save local preset
Change lock code
Erase all presets

Hardware Info
Hardware Monitor
LCD contrast
Set Keylock code
Service

Source selection
Source mode
Gain trim
If no link

Display Amp data
Edit Amplier name

Analog  Out
Analog  DSP  Out
AES3  Out
AES3  DSP  Out
KAESOP  Out
KAESOP  DSP  Out

Output attenuation
Input gain/sens
Inuput select
Max output voltage
Max mains current
Clip limiter CH1
Clip limiter CH2
Gate CH1
Gate CH2
Mute at Power on
Idle Mode

see “DSP Settings” diagram

Device mode
Addressing mode
Set address
Show net cong
Audio

Repeat (default)
Forward to AES3-A
Forward to AES3-B
Forward to both

IP address
subnet mask
Default gateway

1

Available only with optional KDSP board

2

Available only with optional KAESOP board

14 | K Series

Source selection
Source mode
Gain trim
If no link

AES3-XLR rear panel
AES3-A
AES3-B

Parallel from L
Parallel from R
Stereo

Mute
Analog

Display Amp data
Edit Amplier name

Analog  Out
Analog  DSP  Out

1

AES3  Out

1

AES3  DSP  Out

1

KAESOP  Out

2

KAESOP  DSP  Out

1, 2

Output attenuation
Input gain/sens
Inuput select
Max output voltage
Max mains current
Clip limiter CH1
Clip limiter CH2
Gate CH1
Gate CH2
Mute at Power on
Idle Mode

see “DSP Settings” diagram

Device mode
Addressing mode
Set address
Show net cong
Audio

Repeat (default)
Forward to AES3-A
Forward to AES3-B
Forward to both

IP address
subnet mask
Default gateway

1

Available only with optional KDSP board

2

Available only with optional KAESOP board

K Series | 15

N

N

Common Settings
CH1 Settings
CH2 Settings
CH1 Setup
CH2 Setup
Input EQ
Reset Input Section
Reset Output Section

Source Selection
AES3
Cross limit
Sound speed (m/s)

Gain trim (dB)
If no link:

EQs
LP lter
HP lter
Polarity
Ch delay (us)
Gain (dB)
Peak limiter
Power limiter
Damping Control

PEQ#

Stereo
Parallel from CH1
Parallel from CH2
Mono Mix

Active
Freq. (Hz)
Slope (dB/oct)
Shape

Active
Freq. (Hz)
Slope (dB/oct)
Shape

In phase
Reversed

Active
Thresh. (Vpk)
Attack (ms)
Release (ms)

Mode
Soft knee
Thresh. (W)
Attack (ms)
Release (ms)

Mode
Equiv. Rout (Ω)

Aux Dly (ms)
Diagnostics

Tone in alarm
Tone in freq
Tone in Vmin
Tone in Vmax
Tone out gen
Tone out ampl
Tone out freq
Tone out alarm
Tone out Vmin
Tone out Vmax
Load alarm
Load Zmin
Load Zmax
Measures

identical to CH1 Settings

identical to CH1 Setup

Analog
Mute

Active
Freq. (Hz)
Gain (dB)
Q factor
Type

Peaking
Low Shelving
High Shelving
Low pass EQ
High pass EQ
Bandstop
Bandpass
Allpass

Butterworth
Bessel
Link.-Riley
FIR Lin Phase
Hybrid FIR

Butterworth
Bessel
Link.-Riley
FIR Lin Phase
Hybrid FIR

OFF
TruePower
Power vs V @ 8Ω
Power vs I @ 8Ω

16 | K Series

O

Load power

estimation

INPUT

PROCESSING

INPUT

SELECT

CHANNEL

PROCESSING

DAMPING
CONTROL

TruePOWER

LIMITER

PEAK

LIMITER

POLARITY

Hi-PASS

FILTER

Lo-PASS

FILTER

CHANNEL

DELAY

FIR EQ

Output current

Output voltage

output

monitor

16 bands parametric EQ Custom FIR Enhanced limiter

Cable loss

compensationIIR and FIR linear phase crossover

CHANNEL

PEQ16

Load impedance

estimation

GAIN

MAIN

DELAY

INPUT EQGAIN

GAIN

AES3

Analog

To/from

other channel

SigGen SigGen

To output stage

Raised cosine lters EQ

K Series | 17

P

Q

11

1 RU

1 RU

1 RU

Mounting brackets

Soportes de montaje

Supports de xation

1

1

22

22

33

33

44

44

5

18 | K Series

R

Regulatory information

WEEE DIRECTIVE

If the time arises to throw away your product, please recycle all the com­ponents possible.

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.

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.

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: K2, K3, K6, K8, K10, K20

K2 DSP+AESOP, K3 DSP+AESOP,
K6 DSP+AESOP, K8 DSP+AESOP, K10 DSP+AESOP,
K20 DSP+AESOP.
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:

 2006/95/EC Low Voltage Directive
 2004/108/EC Electromagnetic Compatibility Directive
 2002/95/CE RoHs Directive

The following armonized standards are applied:

EN 55103-1
EN 61000-3-2
EN 61000-3-3
EN 55103-2
EN 61000-4-2
EN 61000-4-3
EN 61000-4-4
EN 61000-4-5
EN 61000-4-6
EN 61000-4-11
EN 60065

Scandicci,
July 2014

Luca Lastrucci
Managing Director

For compliance questions only: [e-mail]

K Series | 19

English

CAUTION

RISK OF ELECTRICK SHOCK

DO NOT OPEN

Electrical energy can perform many useful functions. This unit has
been engineered and manufactured to ensure your personal safety. But
IMPROPER USE CAN RESULT IN POTENTIAL ELECTRICAL SHOCK OR
FIRE HAZARD.
In order not to defeat the safeguards incorporated into this product,
observe the following basic rules for its installation, use and service.
Please read these “Important Safeguards” carefully before use.

Important safety instructions

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. Clean only with a dry cloth.

7. Do not block any ventilation openings. Install in accordance with
the manufacturer’s instructions.

8. Do not install near any heat sources such as radiators, heat registers,
stoves, or other apparatus (including amplifiers) that produce heat.

9. Do not defeat the safety purpose of the polarized or grounding­type plug. A polarized plug has two blades with one wider than the
other. A grounding type plug has two blades and a third grounding
prong. The wide blade or the third prong are provided for your
safety. If the provided plug does not fit into your outlet, consult an
electrician for replacement of the obsolete outlet.

10. Protect the power cord from being walked on or pinched particu­larly at plugs, convenience receptacles, and the point where they
exit from the apparatus.

11. Only use attachments/accessories specified by the manufacturer.

12. Use only with the cart, stand, tripod, bracket, or table specified by
the manufacturer, or sold with the apparatus. When a
cart is used, use caution when moving the cart/ap­paratus combination to avoid injury from tip-over.

13. Unplug this apparatus during lightning storms or
when unused for long periods of time.

14. 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.

Numbers 9 and 13 apply only to K2 and K3.

WARNING: TO REDUCE THE RISK OF ELECTRIC SHOCK, DO NOT
ATTEMPT TO OPEN ANY PART OF THE UNIT. NO USER-SERVICE ABLE
PARTS INSIDE. REFER SERVICING TO QUALIFIED SERVICE PERSONNEL.

TO COMPLETELY DISCONNECT THIS APPARATUS FROM THE AC
MAINS, DISCONNECT THE POWER SUPPLY CORD PLUG FROM THE AC
RECEPTACLE.*

THE MAINS PLUG OF THE POWER SUPPLY CORD MUST
REMAIN READILY ACCESSIBLE.**

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

K6, K8, K10 AND K20 MUST BE INSTALLED IN RACK CABINETS:
INSTEAD OF CONNECTING THE AMPLIFIER TO THE POWER GRID
DIRECTLY, PLUG THE AMPLIFIER’S MAINS CONNECTIONS VIA A
SECTIONING BREAKER TO A POWER DISTRIBUTION PANEL INSIDE
THE RACK CABINET.

WHEN THE UNIT IS INSTALLED IN A CABINET OR A SHELF, MAKE
SURE THAT IT HAS SUFFICIENT SPACE ON ALL SIDES TO ALLOW
FOR PROPER VENTILATION (50 CM FROM THE FRONT AND REAR
VENTILATION OPENINGS).

CONNECTION TO THE MAINS SHALL BE DONE ONLY BY A
ELECTROTECHNICAL SKILLED PERSON ACCORDING THE NATIONAL
REQUIREMENTS OF THE COUNTRIES WHERE THE UNIT IS SOLD.

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.

The CE-mark indicates the compliance with the low voltage and
electromagnetic compatibility.

Symbol for earth/ground connection.

Symbol indicating that the equipment is for indoor use only.

Symbol for conformity with Directive 2002/96/EC and Directive
2003/108/EC of the European Parliament on waste electrical
and electronic equipment (WEEE).

Do not use the unit at altitudes above 2000 m.

Do not use the unit in tropical environment.

Important safety
instructions

1

* K6, K8, K10 and K20: interrupt the mains by switching the sectioning

breaker off.

** Valid for K2 and K3 model only; with K6, K8, K10 and K20 a free leads

power cord (i.e. without plug) is provided: this solution is intended for con­necting the device to a sectioning breaker on the mains. Refer to the instal­lation instruction for selecting the proper sectioning breaker.

20 | K Series

English

K Series Quick Guide

2

2 : 1.Welcome

Congratulations on buying a Powersoft K Series amplier!
We know you are eager to use your new amplier, 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 Power soft.

Powersoft K Series is the agship of Powersoft’s
technologies, ranking in the “Top Class” amplication of the
global pro audio market.

Offering various power ratings in 6 models ranging from
2 x 2400 W/ch @ 4  to 2 x 9000 W/ch @ 2 , still maintaining
the 1 unit size, the K Series represents the milestone of
switch mode amplication providing incredible power with
the lowest weight and highest efciency.

Suiting an unlimited range of PA applications such as
opera houses, theaters, churches, cinema, and theme
parks, K Series sonic performances became target for
professional audio market.

Completely remotable by Armonía Pro Audio Suite,
Powersoft K Series DSP+AESOP grants granular control
over any parameter of the signal processing: input/output
independent equalizers per channel providing PEQ, raised
cosine, shelving IIR lters as well as custom output FIR lters,
delay up to 1 s for time alignment, Active DampingControl™
for cable compensation, Power limiter (TruePower™, RMS
voltage, RMS current) + Peak Limiter.

Furthermore, by using the Step-Up procedure it is
possible to increase the output power without having to
change amplier.

K Series ampliers are:

K2

K2 DSPK3K3 DSPK6K6 DSPK8K8 DSP

K10

K10DSP

K20

K20DSP

8 Ω 1000 W 1400 W 1300 W 1500 W 2000 W 2700 W

4 Ω 1950 W 2600 W 2500 W 3000 W 4000 W 5200 W

2 Ω 2400 W 2800 W 3600 W 4800 W 6000 W 9000 W

2 : 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 or reseller immediately.

The box contains the following:

 1x K Series amplier.
 1x AC mains power cord
 1x quick guide

2 : 3.Disposal of the packaging material

The protective transport packaging 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.

2 : 4.List of image panels

A. K2, K3 mechanical drawings (dimensions in mm)
B. K6, K8, K10, K 20 mechanical drawings (dimensions in mm)
C. K Series front panel
D. K2, K3 rear panel
E. K2 DSP+AESOP, K3 DSP+AESOP rear panel
F. K6, K8, K10, K20 rear panel
G. K6 DSP+AESOP, K8 DSP+AESOP, K10 DSP+AESOP,

K20 DSP+AESOP rear panel
H. Connectors pinout
I. Output connections diagram
J. RJ45 Ethernet pinout
K. RJ45 RS485 pinout
L. AC mains connections
M. LCD: main settings menu diagram
N. LCD: DSP settings menu diagram
O. Signal processing diagram
P. Mounting brackets and air ow direction
Q. Rule for stacking ampliers in closed racks
R. Regulatory information

English | 21

English

Installation

3

3 : 1.Location

The intended use of K Series ampliers is in a rack cabi­nets. The AC mains wirings of the units shall be connected
to a power distribution panel inside the rack cabinet. In
order to limit the risk of mechanical damages, the ampliers
must be xed to the rack using both frontal and rear mount­ing brackets. We recommends to use eight M6 or 12-24
UNC-2B screws for threaded holes or cage nuts.

Install this amplier as far as possible from radio tuners
and TV sets. An amplier installed in close proximity of such
equipment may experience noise or generic performance
degradation. Placing and using the amplier for long periods
of time on heat generating sources will affect its performance.
Avoid placing the amplier on heat generating sources.

3 : 2.Cooling

Install the amplier in a well-ventilated location: the ven­tilation openings must not be impeded by any item such as
newspapers, tablecloths, curtains, etc; keep a distance of
at least 50 cm from the front and rear ventilation openings
of the amplier.

All Powersoft ampliers implement a forced-air cooling
system to maintain low and constant operating tempera­tures. Drawn by the internal fans, air enters from the front
panel and is forced over all components, exiting at the back
of the amplier.

The amplier’s cooling system features “intelligent” var­iable-speed DC fans which are controlled by the heatsink
temperature sensing circuits: the fans speed will increase
only when the temperature detected by the sensors rises
over carefully predetermined values. This ensures that fan
noise and internal dust accumulation are kept to a strict
minimum.

Should however the amplier be subject to an extreme
thermal load, the fan will force a very large volume of air
through the heat sink. In the extremely rare event that the
amplier should dangerously overheat, sensing circuits
shut down all channels until the amplier cools down to a
safe operating temperature. Normal operation is resumed
automatically without the need for user intervention.

K Series ampliers can be stacked one on top of the other
due to the efcient cooling system they are equipped with.

There is however a safety limit to be observed: in case
a rack with closed back panels is used, leave one rack unit
empty every four installed ampliers to guarantee adequate air
ow (see Panel Q, p. 18).

3 : 3.Cleaning

Always use a dry cloth for cleaning the chassis and the
front panel. Air lter cleaning should be scheduled according
to the dust levels in the amplier’s operating environment.

Disconnect the AC mains source before

attempting to clean any part of the amplifier

In order to clean the vent lters you need to remove the
front cover: never attempt to open any other part of the unit.

By means of a screwdriver Phillips PH1, unscrew the
screws that lock the left and right cover grils on the front
panel (ref. FIG. 1), gently lift the covers and remove the l­ters. You may use compressed air to remove the dust from
lters, or wash it with clean water: in the latter case ensure
that the lters are dry before reassembly.

3 : 4.AC mains supply

The AC Main connection is made via the

 AMP CPC 45A connector in K6, K8, K10 and K20;

 IEC C20 connector in K3 and K2.

The power cord type provided with the amplier are

 LAPP OLFLEX191 3G6 / SJT 3XAWG10

for K6, K8, K10 and K20.

 Bahoing SJT 3x16AWG or I-sheng SGIS 3G 1,5 mm

2

for K3 - K2.

Panel L, p. 13 shows how to connect the mains power

cable to the amplier.

Make sure the AC mains voltage used

is within the acceptable operating

voltage range: 115V-230V ±10%.

It is important to connect the ground

for safety, do not use adapters that

disable the ground connection.

Connection to the mains shall be done

only by a electrotechnical skilled person

according the national requirements of

the countries where the unit is sold.

cover grill

screw lter

FIG. 1: Cleaning air filters.

22 | K Series

English

Connections

4

Make sure the power switch is off before attempting to
make any input or output connections.

By using good quality input and speaker cables, the like­lihood of erratic signal behavior is reduced to a minimum.
Whether you make them or buy them, look for good quality
wires, connectors and soldering techniques.

4 : 1.Signal grounding

There is no ground switch or terminal on the K Series
ampliers. All shield terminals of input connections are di­rectly connected to the chassis. This means that the unit’s
signal grounding system is automatic. In order to limit hum
and/or interference entering the signal path, use balanced
input connections.

In the interests of safety, the unit MUST always operate
with electrical safety earth connected to the chassis via
the dedicated wire in the 3-wire cable (ref. §3 : 4.AC ma ins

supply). Never disconnect the ground pin on the AC mains

power cord.

4 : 2.Analog audio input connections

Analog input is provided by means of Neutrik XLR female
connectors (K2, K3), or XLR/jack hybrid combo connectors
(K6, K8, K10, K20) one per channel input. Signal polarity of
analog input connections is shown in Panel H, p. 12.

4 : 3.Analog line output

Line out is provided in K2 and K3 via a couple of XLR
connectors on the rear panel. In DSP equiped models, the
output signal is pre-DSP, being a replica of the input signal.
Signal polarity of line output connections is shown in Panel

H, p. 12.

4 : 4.Digital Input

On DSP equiped models, the XLR input for channel 2
can switch to an AES3 digital input. The AES3/analog push­button located nearby the channel 2 XLR input connector
toggles the XLR between analog and digital input.

In AES3 mode

 the channel 2 analog line out is off (K2, K3 only);
 the channel 1 analog input can be used as redundant

input if the digital input fails.

The AES3 connection carries a channel pair through a
110  nominal impedance wire in the form of a balanced
(differential) digital signal: in AES3 XLR connectors the
identication of hot and cold pins is not an issue. Avoid the
use of microphone cables in AES connections: impedance
mismatch can result in signal reections and jitter, causing
bit errors at the receiver.

3 : 5.Precautions regarding installation

WARNING: TO PREVENT FIRE OR ELECTRIC SHOCK

 This device must be powered exclusively by earth con-

nected mains sockets in electrical networks compliant
to the IEC 364 or similar rules.

 Install K6, K8, K10 and K20 into rack cabinet.

 With K6, K8, K10 and K20 a sectioning breaker be-

tween the mains connections and the amplier must
be installed inside the rack cabinet. Suggested device
is 32A/250VAC, C or D curve, 10kA.

 With K2 and K3 provide a sectioning breaker between

the mains connections and the amplier. Suggested
device is 16A/250VAC, C or D curve, 10kA.

 Before powering this amplier, verify that the correct

voltage rating is being used.

 Verify that your mains connection is capable of satisfy-

ing the power ratings of the device.

 Do not use this amplier if the electrical power cord is

frayed or broken.

 Output terminals are hazardous: wiring connection to

these terminals require installation by an instructed
person and the use of ready-made leads.

 Take care to lock the output terminal before switching

the device on.

 To avoid electrical shock, do not touch any exposed

speaker wiring while the amplier is operating.

 Do not spill water or other liquids into or on the amplier.

 No naked ame sources such as lighted candles

should be placed on the amplier.

 Do not remove the cover. Failing to do so will expose

you to potentially dangerous voltage.

 The manufacturer cannot be held responsible for

damages caused to persons, things or data due to an
improper or missing ground connection.

 Contact the authorized service center for ordinary and

extraordinary maintenance.

It is absolutely necessary to verify these fundamental

requirement of safety and, in case of doubt, require

an accurate check by qualified personnel.

English | 23

English

4 : 5.AESOP

The AESOP connection can transport a single bidirec­tional Fast Ethernet (IEEE 802.3u, 100 Mbit/s) control data
stream and two independent separate AES3 digital audio
monodirectional streams using one Cat5 cable.

All K Series amplier with the optional KAESOP board
installed are equipped with at least two RJ45 connectors,
each of them being a single AESOP port, capable of send­ing and/or receiving data and audio.

If the amplier has only two RJ45 plugs, these will be
on the front panel. If four plugs are present, the rear two
will be “primary” ports, while the two on the front panel are
“secondary” ports.

Primary ports allow both data and AES3 streams; sec­ondary ports are data-only ports, allowing Ethernet con­nections only.

Cat5 standard twisted pair cables shall be used for con­nections up to 100 meters (328 ft). RJ45 pinout must comply
to TIA/EIA-568-B and adopt the T568B scheme pinout, as
show in Panel J, p. 12.

For more details about networking and AESOP please
refer to the Armonía Pro Audio Suite user guide.

4 : 6.Loudspeaker connections

K6, K8, K10, K20 K2, K3
CLAS S 3 WIR ING CLASS2 WIRING

Output terminals are hazardous: wiring connection

to these terminals require installation by an

instructed person and the use of ready made leads.

Take care to secure the output terminal

before switching the device on.

Two Neutrik NL4MD speakON connectors are located
on the rear panel, each of them being a single output to
loudspeaker.

Pins 1+ and 2+ are physically bridged to the positive pole;
pins 1– and 2– are physically bridged to the negative pole.

In order to remain within safe operating conditions,
when using low impedance loads – i.e. 4 Ω or less (8 Ω or
less in bridge mode) –, connections must be made with a
four wire cable. Use suitable wire gauges to minimize power
and damping factor losses in speaker cables.

4 : 6.1. Bridge-tied load

Bridge-tied load connection can be achieved as de­scribed in Panel I, p. 12. In analog mode, only the input
of channel 1 needs to be wired: link channel 2 to channel 1
by means of the link pushbutton located on the rear panel.

When operating with digital inputs – i.e. AES3 and AESOP
– link the channels through Armonía Pro Audio Suite software:
do not switch the link pushbutton.

CLASS3
WIRING

CLASS2

WIRING

4 : 7.V Ext

The V Ext terminal is used to remotely manage the DSP

in K Series DSP amplier and enable remote on/off.

K Series provided with a KAESOP board have a dedicat­ed 2 pin Phoenix connector MCV 1,5/ 2-G-3,81 - 1803426
located near the rear Ethernet ports. K Series with the RS­485 serial port implement the V Ext connection on pin 2 (pin

7) of the RJ45 rear connector (ref. Panel K, p. 12).

When the V Ext port is powered by and external 12 V

DC

(1 A max) power supply, the internal controller allows to con­trol the DSP – if present – even without AC mains supply,
and allows serial communication – via RS-485 or ethernet
communication in KAESOP equiped models – for remote
on/off via the Armonía Pro Audio Suite software.

4 : 8.RS-485 connection

K Series ampliers without an optional KAESOP board
can be remotely controlled via an RS-485 connection.

Remote connection data cables must have an 8P8C
modular plug – namely RJ45 plug – to be inserted in the
rear port labelled “DATA PORT”.

By plugging an RJ45 plug and selecting the unit’s remote
ID via the rotary trimmers, the amp is ready to be remotely
controlled. Please note that ID numer 00 is not allowed.

The recommended arrangement of the connections is a
series of point-to-point (multidropped) nodes – i.e. a line or
bus. Ideally, the two ends of the line should be terminated
with a resistor, typically 120 Ω for twisted pairs. Powersoft
recommends the use of Ethernet Cat5 straight through –
patch – cables with pin/pair assignments TIA/EIA-568-B,
i.e. T568B, as shown in Panel J, p. 12.

4 : 9.Ethernet connections

K Series amplier platforms can be remotely controlled
via an Ethernet connection through a personal computer
and Powersoft Armonía Pro Audio Suite software.

Powersoft recommends the use of Ethernet Cat5
straight through – patch – cables with pin/pair assignments
TIA/EIA-568-B, i.e. T568B, as shown in Panel J, p. 12.

24 | K Series

English

LEDs and
display menu

5

In all K Series ampliers, the combination of the front
panel buttons together with the LCD display allow the user
access to detailed information and complete control over
the amplier’s status. Each button has multiple functions
and the display shows the current active function for each
button. This chapter illustrates all the functions and settings
accessible via the amplier front panel.

All the setup and settings functions described in this
section can be also accessed through a computer with
Powersoft’s Armonía Pro Audio Suite software. Armonía is
a software environment that offers an easy to use end user
remote control interface and signal processing capabilities.

Armonía Pro Audio Suite is available for free on the
Armonía forum:

http://www.powersoft-audio.com/en/armonia-forum

Please note that when an Armonía client is connected to the
amplier, any local operation is overridden by the software.

5 : 1.LED chart

The LED columns on the front of the amp can work as
output voltage or current meters. When the LED bars are set
to meter output voltage, for example, the meters on the LCD
screen will indicate output current values. The vice versa is
true: LED bars set as output current meters, LCD display
bars become output voltage meters.

Color Solid Blinking

RED

Signal clipping

OR

channel muted

for protection

1

Ton e

detection

problem

YELLOW

Temperature

above 85°C

OR

output level2 -2 dB

Critical

temperature

(80° - 85°C)

GREEN output level2 -3 dB

GREEN output level2 -6 dB

GREEN output level2 -9 dB

GREEN output level2 -15 d B

GREEN

input signal is above

-60 dBV
OR

output level2 -18 d B

1

In case of a short circuit protection event, the LCD screen will read “PROT”.

2

With respect to the output clipping threshold.

TAB. 1: LED chart.

5 : 2.Front display

When the amp is turned on, the main screen appears

after a short presentation.

The rst line of the screen will read “WAIT” while the sys­tem undergoes an initial batch of internal tests to determine
the status of the amp. If all parameters are normal, “READY”
will replace “WAIT” on the display.

System parameters are continuously monitored by the
internal controller. If any parameter value should fall out of
its correctly operating range, a code error relative to that
particular parameter will appear on the third line of the LCD
meter at the corresponding channel number. Should the
parameter be out of range for both adjacent channels, the
error code will appear in between the two compromised
channels.

The fourth line of the front panel LCD screen shows the
functions of the buttons immediately below. A beep con­rms that a button has been pressed; please note that this
sound is not mutable.

Pressing the button directly below the “menu” label on
the LCD screen gives access to the amplier’s main menu.
If an Armonía client is connected to the amplier, a yellow
shadow will appear in the software workspace view, signal­ing local access to the amplier.

5 : 2.1. How to navigate the main menu

The K Series main menu can be accessed by press­ing the rst button on the right, underneath the LCD label
“m enu”.

The up and down arrows allow to scroll the menu items.
To access further menu voices branching off a specic
menu item, select it and press the “menu” button once.

Some submenus in the K Series amps require the user
to set a numerical value for specic parameters using the
front panel buttons. In order to speed this process up, these
submenus dedicate two of the four available buttons to
switching to a fast or slow parameter increment mode.

When in the “slow” mode, the up and down arrows in­crease or decrease the parameter by a the smallest amount
possible. The “fast” mode will increase or decrease the
parameter value by an amount equal to 10 times the amount
increased in the “slow” mode.

For example: in “slow” mode a single “+” button press
will increase the Max mains current from 22 A to 23 A; in
“fast” mode a single “+” button press will increase the Max
mains current from 22 A to 32 A.

The overview of the structure of the Main menu and of
the DSP settings menu are shown in Panel M, p. 14 and

Panel N, p. 16 respectively.

English | 25

English

Settings

6

6 : 1.Amplifier settings: Input Gain/Sensitivity

All K Series ampliers allow the selection of the input
sensitivity. TAB . 2 shows the input sensitivity values for the
K Series ampliers. These are the maximum RMS voltage
values of a 1 kHz sine wave input before clipping occurs at
the output stage. These values are reported with respect to
the amplier’s gain.

The maximum balanced input signal before saturation
of the input stage of the amplier occurs with respect to the
amplier’s gain is presented in TAB. 3.

Gain K2 K3 K6 K8 K10 K20

26 dB 4.48 V 5.30 V 5.11 V 5.50 V 6.34 V 7.37 V
29 dB 3.17 V 3.75 V 3.62 V 3.90 V 4.49 V 5.22 V
32 dB 2.47 V 2.66 V 2.56 V 2.75 V 3.18 V 3.68 V

35 dB 1.59 V 1.88 V 1.81 V 1.95 V 2.25 V 2.62 V

TAB. 2: Input sensitivity (in RMS volt) @ 1 kHz vs gain.

Gain dBV dBu V

rms

26 dB 25.0 27 18
29 dB 21.6 24 12
32 dB 19.0 21 9

35 dB 15.6 18 6

TAB. 3: Maximum balanced input signal vs gain.

6 : 2.Amplifier settings: Input select

K Series ampliers allow the user to choose three dif-

ferent input modes (if available): Analog, AES3

1

and/or

KAESOP2.

Each of these inputs can either be processed by the
internal DSP (if installed) or not.The available signal routing
path congurations are:

 Analog  Out

Analog input and direct output

 Analog  DSP  Out

1

Analog input routed to the internal DSP

 AES3  Out

AES3 input, direct output

 AES3  DSP  Out

1

AES3 input routed to the internal DSP

 KAESOP  Out

2

KAESOP input, direct output

 KAESOP  DSP  Out

1 2

KAESOP input routed to the internal DSP

1

Available only with optional KDSP board

2

Available only with optional KAESOP board

K2 K3 K6 K8 K10 K20

40/140 V 40/165 V 40/153 V 40/169 V 40/200 V 40/225 V

TAB. 4: Maximum output voltage ( V

peak

).

6 : 3.Amplifier settings: Max output voltage

The max output peak voltage of K Series ampliers can
be set by the user. It is possible to set output peak voltage
levels for channel 1, channel 2 or both. Available voltage
ranges for each model are shown in TAB. 4.

6 : 4.Amplifier settings: Max mains current

The maximum current the amplier can draw from the
mains can be set by the user through the front panel of all
K Series ampliers. Acceptable values are within the 8A to
16 A for K2 and K3 and from 15 A to 32 A range for all other
K ampliers.

Setting the maximum mains current determines the cur­rent threshold at which a C-Type current breaker will trip.

6 : 5.Amplifier settings: Clip limiter CH1/CH2

The clip function can be used to prevent distortion
caused by clipping of the output signal.

Please note that clip limiters can be set independently
for both channels.

CAUTION: disabling clip limiters can

potentially damage loudspeakers.

The amplier’s internal clip limiters should not be deac­tivated unless the limiting function is implemented by an ex­ternal device such as digital system controllers. In this case,
it is extremely important to correctly set limiting parameters
in order to preserve loudspeakers from excessively power­ful and potentially hazardous driving signals.

6 : 6.Amplifier settings: Gate CH1/CH2

This function allows to mute the amplier channels
individually if the input signal amplitude falls below the
threshold shown in TAB. 5.

Gating the output is delayed by 5 seconds after the input
signal falls below the threshold. If the channel is muted, the
bottom green LED in the corresponding front panel LED
column is off.

Gain dBV dBu

26 dB -54 -52
29 dB -57 -55
32 dB -60 -58

35 dB -63 -61

TAB. 5: Gate threshold vs gain.

6 : 7.Amplifier settings: Mute at power on

This functions allows the user to automatically mute all
channels when the amplier is turned on. If this function is
enabled, a “Muted” label will appear at the main screen next
to each channel at the next power on.

26 | K Series