D&B D6 Manual de usuario
D6 Amplifier
Hardware manual (1.2EN)
Symbols on the e uipment
Please refer to the information in the operating
manual.
WARNING!
Dangerous voltage!
General Information
D6 Amplifier
Hardware manual
Version 1.2EN, 11/2007, D2017.EN.01
Copyri ht © 2007 by d&b audiotechnik AG; all ri hts reserved.
Keep this manual with the product or in a safe place so that it is
available for future reference.
In the case of resellin this product handout this manual to the new
customer.
If you supply d&b products, please draw the attention of your
customers to this manual. Enclose the relevant manuals with the systems.
If you require additional manuals for this purpose, you can order them
from d&b.
d&b audiotechnik AG
Eu en-Adolff-Strasse 134, D-71522 Backnan , Germany
Telephone +49-7191-9669-0, Fax +49-7191-95 00 00
E-mail: docadmin@dbaudio.com, Internet: www.dbaudio.com
Contents
1. Introduction......................................................................4
1.1. Intended use...............................................................................................4
1.2. Scope of supply.........................................................................................4
1.3. Maintenance/Service...............................................................................4
2. D6 Amplifier.....................................................................5
2.1. D6 based systems.....................................................................................5
2.2. Block dia ram............................................................................................5
2.3. Power supply..............................................................................................6
2.3.1. Inrush current limiter.....................................................................6
2.3.2. Mains volta e monitorin ...........................................................6
2.4. Fan.................................................................................................................6
2.5. D6 power amplifiers.................................................................................6
2.6. Di ital si nal processin ..........................................................................6
2.7. Remote control...........................................................................................6
3. Controls and indicators....................................................7
3.1. Controls........................................................................................................7
3.1.1. Power switch...................................................................................7
3.1.2. MUTE A/B switch ( reen LED)...................................................7
3.1.3. LEVEL/PUSH MENU (Di ital rotary encoder).......................8
3.2. Indicators.....................................................................................................9
3.2.1. LC Display........................................................................................9
3.2.2. ISP LED (A/B) - Input Si nal Present ( reen)..........................9
3.2.3. GR LED (A/B) - Gain Reduction (yellow).................................9
3.2.4. OVL LED (A/B) - Overload (red)..............................................9
4. Connections....................................................................10
4.1. Mains Connector....................................................................................10
4.2. Si nal inputs and link outputs.............................................................10
4.2.1. INPUT A/B and LINK A/B.........................................................10
4.2.2. INPUT DIGITAL AES/EBU and LINK......................................11
4.3. Loudspeaker output connectors - OUT A/B...................................11
4.4. REMOTE interface..................................................................................12
4.5. SERVICE.....................................................................................................12
5. Installation and operation............................................13
5.1. Rack mountin .........................................................................................13
5.2. Operation.................................................................................................14
5.2.1. Power consumption and power loss......................................14
5.2.2. Mains supply................................................................................15
5.2.3. Operatin conditions.................................................................15
6. Technical specifications..................................................16
6.1. Dimensions................................................................................................18
7. Manufacturers declarations..........................................19
7.1. EU declaration of conformity (CE symbol).......................................19
7.2. WEEE declaration (Disposal)...............................................................19
D6 Amplifier, Hardware manual (1.2EN) Contents - 1
1. Introduction
This manual describes the facilities and basic functions of the hardware
of the D6 amplifier. A detailed description of the D6 software (firmware)
menu structure and access is iven in the D6 Software manual, which is
also provided with the D6.
1.1. Intended use
The D6 amplifier is a two channel power amplifier and controller unit. It
is desi ned for use with all current d&b loudspeakers except 2-Way
Active and B2-SUB setups. A linear mode is available allowin the D6
to be used as a linear power amplifier.
NOTICE: The device complies with the electroma netic compatibility
requirements of EN 55103 (product family standard for audio, video,
audio-visual and entertainment li htin control apparatus for
professional use) for the environments E1 (residential), E2 (business and
commercial), E3 (outdoor use in urban areas) and E4 (outdoor use in
rural areas).
Acoustic interference and malfunctions may occur if the unit is operated
in the immediate vicinity of hi h-frequency transmitters (e. . wireless
microphones, mobile phones, etc.). Dama e to the unit is unlikely, but
cannot be excluded.
1.2. Scope of supply
Before startin up please verify the shipment for completeness and
condition of the unit:
Qty. d&b Code Description
1 Z2700.000 D6 Amplifier
1 Z2610.xxx Power cord D6 (specific to country)
1 D2017.EN D6 Amplifier, Hardware manual
1 D2018.EN D6 Amplifier, Software manual
For any sign of obvious damage to the unit and/or the power
cord durin shipment under no circumstance connect and operate the
unit. Please contact your local dealer from whom you received the unit.
1.3. Maintenance/Service
CAUTION: Do not open the unit. No user serviceable parts inside. In
the case of any dama e to the unit under no circumstances connect and
operate the unit.
Refer servicin only to qualified service personnel authorized by
d&b audiotechnik. In particular in the case of:
- objects or liquids have entered the unit.
- the unit is not operatin normally.
- the unit was dropped or the housin is dama ed.
D6 Amplifier, Hardware manual (1.2EN) Page 4 of 20
2. D6 Amplifier
Fig. 1: D6 Amplifier
2.1. D6 based systems
The D6 Amplifier incorporates:
- universal volta e, switch mode power supply with active power
factor correction (PFC)
- two channel Class D power amplifier
- di ital si nal processors (DSP)
- comprehensive protection circuits
- controls and indicators
- analo and di ital si nal inputs and link outputs
- REMOTE and SERVICE interface
The level control on the front panel incorporates a di ital rotary
encoder, which enables selection of all operatin modes in conjunction
with a Liquid Crystal Display (LCD).
User definable equalization and delay functions are incorporated in
each channel of the D6. The 4-band parametric equalizer provides
optional Boost/Cut or Notch filterin and the si nal delay capability
allows delay settin s of up to 340 ms (= 100 m / 328 ft) to be applied
independently to either channel. A si nal enerator offerin pink noise
or sine wave pro ram is also incorporated for test and ali nment
purposes. Each unit can be iven a unique Device Name to simplify
identification and a password protected LOCK function is also
incorporated to inhibit unauthorized set up chan es.
The D6 is housed in a 19" x 351 mm (13.8") 2 rack unit enclosure made
from steel.
2.2. Block diagram
Power
amplifier
Input
routing
Analog A
Analog B
Digital A
Digital B
Signal
generator
sine wave or
pink noise for
acoustic tests
Input
monitoring
1+/2+
1-/2-
User
EQ
Delay
t
Dynamics
Coil temp.
t°
Power supply
Information
on headroom,
temperature,
power, mains
voltage
Excursion
Channel B
System
EQ/XO
pilot signals
for load
monitoring
Channel A
LC Display
Input
Ch A
Ch B
Link A>B
analog
> LINEAR
off
D6
remote
interface
uC
> LINEAR
1+/2+
1-/2-
Z analysis
for load
monitoring
I
D6 Amplifier, Hardware manual (1.2EN) Page 5 of 20
2.3. Power supply
The switch mode mains power supply permits worldwide application
without the need for mains volta e switchin or conversion. The power
supply incorporates active Power Factor Correction (PFC) which
provides a clean and hi hly efficient sinusoidal current draw, thus
providin hi hest performance under adverse mains conditions or when
very lon power cablin is necessary.
2.3.1. Inrush current limiter
A mains inrush current limiter provides a "soft start" and enables
several units to be powered up at the same time without overloadin
the mains power supply.
2.3.2. Mains voltage monitoring
The mains volta e and frequency are recorded by the power supply
and can be viewed on the LCD display. Where volta es outside of this
ran e are present, a self-resettin protective circuit responds quickly to
isolate the internal amplifier power supply leavin only a supervisory
circuit to monitor the mains volta e. The D6 accepts mains volta es of
up to 400 VAC without dama e to the unit.
2.4. Fan
A level and temperature controlled fan is incorporated for coolin the
internal components, which allows reater coolin durin louder
pro ram material. The fan speed is consequently reduced durin quieter
passa es preventin back round noise interference. If the D6 heats up
a "Temp. Warnin " is iven out and the fan will ive full coolin power
permanently.
2.5. D6 power amplifiers
The two power amplifiers fitted to the D6 are utilizin Class D
technolo y similar to a switch mode power supply. Compared to the
known linear amplifier concept (Class A, AB, G or H) the Class D power
amplifiers produce less heat and allows for a compact and li ht wei ht
desi n.
The rated sine wave output power of each channel is 2 x 600 W into an
4 ohms load, decreasin to 2 x 350 W into a 8 ohms load.
2.6. Digital signal processing
The di ital si nal processin provides loudspeaker specific setups that
are selected usin the front panel controls. These setups include all
loudspeaker specific equalization and protection functions. The basic
latency of the D6 is 0.3 ms (analo input includin AD/DA conversion).
2.7. Remote control
The REMOTE interface (2 x RJ 45) can be used with the d&b Remote
network (CAN-Bus) to inte rate the D6 into a control and monitorin
system.
D6 Amplifier, Hardware manual (1.2EN) Page 6 of 20
3. Controls and indicators
3.1. Controls
3.1.1. Power switch
The power switch [1] is a rocker switch type. It does not isolate the unit
from mains power.
-OFF
The unit is switched off except the overvolta e protection circuit. The
power consumption is low (1 W typical).
-ON
The unit is switched on and ready for operation.
3.1.2. MUTE A/B switch (green LED)
When the mains power switch is set to the on position, the MUTE A/B
switches (push buttons) [2] can be used to mute the respective amplifier
channel or place the D6 in Standby mode.
Note: The settin of the MUTE A/B switch is stored in the D6 when the
mains power is turned off or disconnected. After switchin on or
reconnectin the unit it will revert to its previous status.
MUTE / STANDBY
- A brief press of the MUTE (A or B) switch will mute the correspondin
channel A or B. The channel is unmuted by briefly pressin the
correspondin MUTE switch.
- A lon er press (approx. 1.5 s) of MUTE A or B places the D6 in
Standby mode. Briefly pressin the MUTE A or B switch a ain powers
on the D6 ready for use. The D6 may also be powered back on by
remote control from Standby mode.
D6 Amplifier, Hardware manual (1.2EN) Page 7 of 20
Status indication
The switch incorporates a reen LED indicator which indicates three
different states – ON, MUTE and STANDBY.
-LED illuminates permanently ⇒ ON (unmuted)
The D6 is ready for use.
-LED regular flashing (1:1 duty cycle): ⇒ MUTE
The correspondin channel of the D6 is muted however the power
amplifiers remain powered but receive no si nal from the controller.
A connected loudspeaker is therefore still damped.
-Regular short flashes (1:8 duty cycle): ⇒ STANDBY
In Standby mode the loudspeaker outputs are electronically isolated
and the D6 idles, drawin minimal mains power. Only the most
essential functions are provided. Display and network remain
functional, the display illumination will be switched off after 10 s.
Note: When the D6 is set to STANDBY (or the mains power is turned
off) the movement of the loudspeaker cones in the cabinets connected is
no lon er damped by the power amplifier output. This removal of the
dampin makes them susceptible to excitation by other loudspeakers in
the surroundin s. Audible resonances may occur, and even absorption
of low frequency sound ener y as the undamped loudspeakers act like
a "bass trap". To permanently mute sin le subwoofer cabinets when
others are operated at the same time it is therefore preferable to use
the MUTE function instead of STANDBY. The Standby mode, however,
can be of advanta e with mid/hi h systems, because it will remove any
residual noise from the system.
3.1.3. LEVEL/PUSH MENU (Digital rotary encoder)
Operation, confi uration and status viewin of the D6 are all accessed
via the front panel di ital rotary encoder - LEVEL/PUSH MENU [3]. In
the main menu the encoder acts as a level control. Pushin or turnin
the encoder ives access to different menu levels or enables
confi urations or values to be entered.
Brief press
Alternatin between level control of channel A or B.
Long press (approx. 1 s)
Access to the menu level. A detailed description of the D6 menu
structure and access is iven in the D6 Software manual, which is also
provided with the D6.
D6 Amplifier, Hardware manual (1.2EN) Page 8 of 20
3.2. Indicators
3.2.1. LC Display
The LC-Display [4] serves as a user interface and display for all
confi uration settin s and status information.
The display is illuminated and can be set to "on/off/timeout 10 s."
A detailed description of the menu structure and access is iven in the
D6 Software manual, which is also provided with the D6.
3.2.2. ISP LED (A/B) - Input Si nal Present (green)
Input - analog
The ISP LED [5] Illuminates when the D6 input si nal exceeds –30 dBu.
The ISP indication is unaffected by the settin of the level control and
the MUTE function but will not operate in STANDBY mode.
Input - digital
Illuminates when the D6 di ital input is locked to 48 or 96 kHz and the
si nal exceeds –57 dBFS (FS = Full Scale). The ISP indication is
unaffected by the settin of the level control and the MUTE function but
will not operate in STANDBY mode.
3.2.3. GR LED (A/B) - Gain Reduction (yellow)
The GR LED [6] illuminates dependin on the input si nal. The D6 limiter
circuit reduces ain by more than 3 dB. This state is not critical but
shows that the system has reached its limits.
3.2.4. OVL LED (A/B) - Overload (red)
The OVL LED [7] illuminates dependin on the input si nal ⇒Overload.
Either the input si nal level is too hi h or ain reduction exceeds
>12 dB.
- If in doubt reduce the input ain at the D6 level control. If caused by
the ain reduction, the OVL LED stops illuminatin . If the condition
does not chan e, the input si nal to the D6 is too hi h ( reater than
+25 dBu).
An overload could also be caused by accumulatin the source input
A+B or by hi h ain settin s (boosts) in the sin le EQ bands, while the
input si nal is lower than +25 dBu.
Flashes (1:1 mark space) ⇒ Error
An error messa e will be displayed alterin with the device name.
D6 Amplifier, Hardware manual (1.2EN) Page 9 of 20
4. Connections
D6
VOLTAGE SEE LABEL
~ 50/60 Hz, 1000 W
MAINS SUPPLY
DIGITAL AES/EBU ANALOG
OUT
B
OUT
A
CH A
CH B
SERVICEREMOTE
4.1. Mains Connector
The D6 is a protective class 1 unit.
WARNING!
A missin earth ( round) contact may lead to dan erous
volta es in the housin and controls and may lead to electric
shock.
- The unit must only be connected to mains volta e supply with
protective earth.
D6
VOLTAGESEE LABEL
~50/60 Hz, 1000 W
MAINSSUPPLY
DIGITAL AES/EBU ANALOG
OUT
B
OUT
A
CHA
CHB
SERVICEREMOTE
D6
ÉZ2700.000WË
D6
100-127V / 220-240V
Z270000000001
WEEE
0615
APowerCon
®1 mains connector [8] is fitted on the rear panel and an
appropriate mains lead is supplied.
Before connectin the device to mains volta e, check that the mains
volta e and frequency correspond to the specifications on the
confi uration sticker on the rear of the D6.
CAUTION: For any si n of obvious dama e to the power cord and or
mains connector the power cord must not be used and must be
exchan ed before further use of the unit.
4.2. Signal inputs and link outputs
NOTICE: To meet the EMC requirements only shielded cablin and
proper fitted connectors must be used.
4.2.1. INPUT A/B and LINK A/B
Fig. 2: Pin assignment ANALOG INPUT/LINK
A 3 pin female XLR input connector [9] is provided for channel A and B.
The inputs are electronically balanced.
Wired in parallel is a 3 pin male XLR input link connector [10] used to
feed the input si nal on to the next device in the system si nal chain.
1PowerCon
® is a re istered trademark of the Neutrik AG, Liechtenstein
D6 Amplifier, Hardware manual (1.2EN) Page 10 of 20
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