dB Technologies S20DP User Manual

Made in Italy

COD. 420120169 Rev 4.0

digital power

RR

ACTIVE SUBWOOFER

22

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MANUALE d’USO - Sezione 1

USER MANUAL - Section 1

BEDIENUNGSANLEITUNG - Abschnitt 1

CARACTERISTIQUES TECHNIQUES - Section 1

3

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user manualuser manual

CONTROLS AND FUNCTIONS

1) "MAINS FUSE" FUSE CARRIER

Mains fuse housing.

2) “FULL RANGE MAINS INPUT" POWER SOCKET

For connecting the power cable provided.
The connector used for mains connection is a POWER CON® (blue)

3) COOLING GRILLE

These grilles permit cooling the amplifier during operation.
Do not block accesses and clean the grilles whenever necessary to ensure correct
air circulation.

4) " BALANCED MAIN INPUT” INPUT CONNECTOR

Balanced input at line level (0 dBu).
It is able to accept “XLR” sockets.

5) "LINK” OUTPUT CONNECTOR

The “XLR” connector connected in parallel with input (4) can be used to send the
input audio signal to another amplified speaker.

6) ”BALANCED X-OVER OUTPUT” OUTPUT CONNECTOR

Internal crossover balanced output. The signal from this output can be sent to any
other amplified speaker.
The crossover frequency can be selected by means of the “SUB X-OVER” switch
(7).

7) “SUB X-OVER” SWITCH

This switch permits selection of crossover frequency between the sub woofer and
the speakers connected to the ”BALANCED X-OVER OUTPUT” connector.

The crossing frequency is selected to 90Hz or 120Hz with a slope of 24dB/oct.

The frequency choice depends to the sound reproduction desire.

8) “SUB PHASE ” SWITCH

This switch permits 180° rotation of the audio signal reproduced by subwoofer.
Rotation makes for easier optimization of low-frequency reproduction even in the
most difficult installation situations. After completing installation, reproduce a piece
of music and adjust the switch to obtain the best low-frequency sound.

9) “ON” INDICATOR LIGHT

The “ON” indicator light comes on green to indicate the amplifier is switched on and it
is working properly.

10) “SGN” INDICATOR LIGHT

This indicator comes on green to indicate the presence of the audio signal (at a level
of -20dB).

11) “LIM” INDICATOR LIGHT

This indicator comes on red to indicate that the internal limiter circuit has tripped.
This prevents amplifier distortion and protects the speakers against overloads.
It is lights for a few seconds during the switching on.

12) “SUB WOOFER LEVEL” INPUT SENSITIVITY CONTROL

This control regulates the sensitivity of the signal at amplifier input.
This control does not affect the “LINK” and “BALANCED X-OVER OUTPUT” output
levels

13) DIGITAL DELAY “SDD - SUBWOOFER DIGITAL DELAY” OPTION

The DVA loudspeaker can be equipped with a delay module (SDD ­SUBWOOFER DIGITAL DELAY) that allows to delay the sound signal reproduced
by the subwoofer.

S20dp

This circuit allows sound-alignment between line array and sub
by balancing the various positions.
The circuit also includes a balanced “XLR” output that sends the delayed audio
signal to other subwoofers. By using a single delay module it is possible to delay
several subwoofers at the same time.
This module can also be used to create cardioid configuration systems. The cardioid
configuration provides a remarkable attenuation of the low frequencies radiated by

TECHNICAL SPECIFICATION

EMI CLASSIFICATION

According to the standards EN 55103 this equipment is designed and suitable to operate in
E5 Electromagnetic environment.

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user manualuser manual

4

TECHNICAL SPECIFICATION

System Active

Type of amplifier Digital - Class D (DIGIPRO )
RMS power 2000 W (1000 W + 1000 W)
Musical power 4000 W
Frequency responce +/-3dB

Sound pressure (SPL) 138dB peak

Woofer 2 x woofer 18”- 4” voice coil

Neodymium or Ceramic
Input sensitivity nominal 0 dBu
Impedance input Balanced 20Kohm

Unbalanced 10Kohm

Speaker shape rectangular
Dimension [WxHxD] 1100x720x580mm
Weight Neodymium 77Kg - Ceramic 84Kg

®

25-150Hz
Crossover 90 - 120Hz (24dB/oct) selecting

Full-range with PFC, 100-240Vac, 50-60HzPower supply

the rear side of the subs, without changing the direct radiated signal on the front
side.
This configuration needs at least 3 subwoofers (two with front radiation and one with
rear radiation equipped with SDD module). See appendix for more details.

1

2

3

3

SUBWOOFER DIGITAL DELAY

DD

B

d

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SS

OPTIONAL CARD

DD

13

BALANCED
X-OVER
OUTPUT

1

2

3

5

6

O

N

F

F

O

MAINS FUSE

FULL RANGE MAINS INPUT
100-240V~ 50-60Hz

2500W MAX

220-240V~ (T10A 250V)
100-120V~ (T20A 250V)

ACTIVE P.F.C.

BB

dd

TECHNOLOGIESTECHNOLOGIES

SERIAL N.

“CAUTION”

TO PREVENT ELECTRICAL SHOCK

DO NOT REMOVE COVER

“AVIS”

RISQUE DE CHOCH ELECTRIQUE

NE PAS OUVRIR

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BALANCED
MAIN INPUT

LINK

+10

+4

SUB-WOOFER

LEVEL

90Hz

120Hz

0°
180°

ON SGN

LIM

SUB

PHASE

SUB

XOVER

1

2

3

1 = GND
2 = HOT
3 = COLD

12

3

8

0dB

PUSH

4

8

101211

9

7

digital power

EMI CLASSIFICATION

According to the standards EN 55103 this equipment is designed and suitable to operate in
E5 Electromagnetic environment.

NEODYMIUM CERAMIC

9

SCHEMA A BLOCCHI

BLOCK DIAGRAM

BLOCKSCHALTBILD

DIAGRAMA EM BLOQURES

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10

COLLEGAMENTI

CABLE CONNECTIONS

VERKABELUNG

CABLAGE

BALANCED
MAIN INPUT

LINK

BALANCED
X-OVER
OUTPUT

1

2

3

1 = GND
2 = HOT
3 = COLD

1

2

3

1

2

3

PUSHPUSH

BALANCED
INPUT

BALANCED
LINK / OUT

1 = GND
2 = HOT
3 = COLD

PUSH

Digital Vertical Array

T

4

MIXER

FULL RANGE

OUTPUT

BALANCED
INPUT

BALANCED
LINK / OUT

1 = GND
2 = HOT
3 = COLD

PUSH

Digital Vertical Array

T

4

BALANCED
INPUT

BALANCED
LINK / OUT

1 = GND
2 = HOT
3 = COLD

PUSH

Digital Vertical Array

T

4

BALANCED
INPUT

BALANCED
LINK / OUT

1 = GND
2 = HOT
3 = COLD

PUSH

Digital Vertical Array

T

4

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11

INSTALLAZIONE

INSTALLATION

INSTALLATIONEN

INSTALLATIONS

Utilizzo in appoggio

Supported use

Anwendung mit Aufstützung

Utilisation en appui

Impilato
Stacked

Aufgesetzt

Empilée

12

Utilizzo in appoggio verticale (DVA T4 montaggio “Ground stacking”)

Supported use (DVA T4 ““Ground stacking” assembling)

Anwendung mit Aufst DVA T4 ““Ground stacking”

DVA T4 ““Ground stacking” installation)

ützung ( Zusammenbauen)

Utilisation en appui (

13

Per supporto asta

Stand adaptor

Opzione DSA 4

DSA 4 Option

Per supporto asta

Stand adaptor

In appoggio

Floor stack

14

In appoggio

Floor stack

Set di 4 ruote - opzione DWK 20
Set of 4 wheels - DWK 20 option

15

Digital Delay subwoofer - opzione SDD
Subwoofer Digital Delay - SDD option

GAP

ALLINEAMENTO SEGNALE AUDIO
ALIGNAMENT AUDIO SIGNAL

CONFIGURAZIONE CARDIOIDE

Delay setup = (GAP X 1000) / 344

Delay = ms (specify milliseconds)
GAP = m (specify meters)
Sound speed = 344 m/s

Ruotare la fase di 180°
Rotate 180° phase

Impostare il delay a 4,5msec
Set delay to 4,5msec

mSec

DELAY SET-UP

.0

.5

.4

.3

.1

.2

.6

.7

.8

.9

0

5

4

3

1

2

6

7

8

9

0

50

40

30

10

20

60

70

80

90

- - -

.

Delay = ms (espresso in millisecondi)
GAP = m (espresso in metri)
Velocità suono = 344 m/s

SUBWOOFER DIGITAL DELAYSUBWOOFER DIGITAL DELAY

DD

BB

dd

TECHNOLOGIESTECHNOLOGIES

SS

OPTIONAL CARDOPTIONAL CARD

DD

BALANCED
X-OVER
OUTPUT

BALANCED
X-OVER
OUTPUT

11

22

33

BB

dd

TECHNOLOGIESTECHNOLOGIES

22

SS

00

BALANCED
MAIN INPUT

BALANCED
MAIN INPUT

LINKLINK

+10+10

+4+4

SUB-WOOFER

LEVEL

SUB-WOOFER

LEVEL

90Hz90Hz

120Hz120Hz

0°0°
180°180°

ONON SGNSGN

LIMLIM

SUB
PHASE

SUB
PHASE

SUB

XOVER

SUB

XOVER

11

22

33

1 = GND
2 = HOT
3 = COLD

1 = GND
2 = HOT
3 = COLD

1122
33

88

0dB0dB

PUSHPUSH

ISTRUZIONI DI SICUREZZA PER ACCESSORI /
ZUBEHÖR NSTRUCTIONS DE SÉCURITÉ

mSec

DELAY SET-UP

.0

.5

.4

.3

.1

.2

.6

.7

.8

.9

0

5

4

3

1

2

6

7

8

9

0

50

40

30

10

20

60

70

80

90

- - -

.

CONFIGURAZIONE CARDIOIDE

CARDIOID CONFIGURATION

16

PUSH

Ruotare la fase di 180°
Rotate 180° phase

SUB

PHASE

0°

180°

Impostare il delay a 4,5msec
Set delay to 4,5msec

BALANCED
X-OVER
OUTPUT

BALANCED
X-OVER
OUTPUT

11

22
33

BB

dd

TECHNOLOGIESTECHNOLOGIES

22

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00

BALANCED
MAIN INPUT

BALANCED
MAIN INPUT

LINKLINK

+10+10

+4+4

SUB-WOOFER

LEVEL

SUB-WOOFER

LEVEL

90Hz90Hz

120Hz120Hz

0°0°
180°180°

ONON SGNSGN

LIMLIM

SUB

PHASE

SUB

PHASE

SUB

XOVER

SUB

XOVER

11

22

33

1 = GND
2 = HOT
3 = COLD

1 = GND
2 = HOT
3 = COLD

1122

33

88

0dB0dB

PUSHPUSH

Contattare dB Technologies per gli accessori da utilizzare a corredo.
Si declina ogni responsabilità da un utilizzo inappropriato degli accessori o di dispositivi aggiuntivi non idonei allo
scopo.

Contact dB Technologies for accessories to be used with speakers.
Will not accept any responsibilty when inappropriate accessories or not suitable additional devices are used.

Kontaktieren sie dBTechnologies für passendes Lautsprecherzubehör.
Falls unpassendes Zubehör verwendet wird, wird jegliche Haftung ausgeschlossen.

Contact dBTechnologies pour les accessoires à utiliser avec la machine.
N'accepterons pas toutes les responsabilités lorsque des accessoires inappropriés ou ne conviennent pas à des
dispositifs supplémentaires sont utilisés.

ISTRUZIONI DI SICUREZZA PER ACCESSORI /
ZUBEHÖR NSTRUCTIONS DE SÉCURITÉ

SAFETY INSTRUCTIONS FOR ACCESSORIES

SICHERHEITSHINWEISE / I POUR LES ACCESSOIRES

A.E.B. INDUSTRIALE s.r.l.

Via Brodolini, 8 - 40056 Crespellano (Bo) - ITALIA
Tel. + 39 051 969870 - Fax. + 39 051 969725
Internet: www.dbtechnologies.com
E-mail: [e-mail]

MANUALE d’USO - Sezione 1

USER MANUAL - Section 1
BEDIENUNGSANLEITUNG - Abschnitt 1
CARACTERISTIQUES TECHNIQUES - Section 1