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3.2. 

Indicators

3.2.1.  LC Display

The LC Display [4] serves as a user interface and display for all
configuration settings 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 given in the
D6 Software manual, which is also provided with the D6.

3.2.2.  ISP LED

The ISP LED [5] (

I

nput

S

ignal

P

resent) indication is unaffected by the

setting of the level control and the MUTE function but will not operate in
STANDBY mode.

The ISP LED illuminates green:

- when the analog input signal fed to the D6

analog inputs

exceeds –30 dBu.

- when the D6

digital input

is locked to 48 or 96 kHz and the

digital signal exceeds –57 dBFS (FS = Full Scale).

3.2.3.  GR LED

The GR LED [6] (

G

ain

R

eduction) illuminates yellow depending on the

input signal. The D6 limiter circuit reduces gain by more than 3 dB. This
state is not critical but indicates that the system has reached its limits.

3.2.4.  OVL LED

The OVL LED [7] (

Ov

er

l

oad) illuminates red depending on the input

signal. Either the input signal level is too high or gain reduction exceeds
12 dB.

- If in doubt please reduce the input gain at the D6 level control. If

caused by the gain reduction, the OVL LED stops illuminating. If the
condition does not change, the input signal to the D6 is too high
(greater than +25 dBu).

An overload could also be caused by accumulating the source input
A+B or by high gain settings (boosts) in the single EQ bands, while the
input signal is lower than +25 dBu.

Flashes 

(1:1 mark space)

 

 Error

An error message will be displayed altering with the device name.

D6 Amplifier, Hardware manual

(1.9 EN)    

Page 10 of 24

Summary of Contents for D6

Page 1: ...D6 Amplifier Hardware manual 1 9 EN...

Page 2: ...ace so that it is available for future reference When reselling this product hand over this manual to the new customer If you supply d b products please draw the attention of your customers to this ma...

Page 3: ...10 3 2 2 ISP LED 10 3 2 3 GR LED 10 3 2 4 OVL LED 10 4 Connections 11 4 1 Mains connector 11 4 2 Signal inputs and link outputs 12 4 2 1 INPUT A B and LINK A B 12 4 2 2 INPUT DIGITAL AES EBU and LINK...

Page 4: ...n areas and E4 outdoor use in rural areas Acoustic interference and malfunctions may occur if the unit is operated in the immediate vicinity of high frequency transmitters e g wireless microphones mob...

Page 5: ...r if objects or liquids have entered the unit the unit is not operating normally the unit was dropped or the housing is damaged CAUTION Potential risk of explosion The unit incorporates a lithium batt...

Page 6: ...s of up to 340 ms 100 m 328 ft to be applied independently to either channel A signal generator offering pink noise or sine wave program is also incorporated for test and alignment purposes Each unit...

Page 7: ...orporated for cooling the internal components which allows greater cooling during louder program material The fan speed is consequently reduced during quieter passages preventing background noise inte...

Page 8: ...D6 in Standby mode Note The setting of the MUTE A B switch is stored in the D6 when the mains power is turned off or disconnected After switching on or reconnecting the unit it will revert to its prev...

Page 9: ...mping makes them susceptible to excitation by other loudspeakers in the surroundings Audible resonances may occur and even absorption of low frequency sound energy as the undamped loudspeakers act lik...

Page 10: ...2 3 GR LED The GR LED 6 Gain Reduction illuminates yellow depending on the input signal The D6 limiter circuit reduces gain by more than 3 dB This state is not critical but indicates that the system h...

Page 11: ...e the mains connector is accessible at any time to disconnect the unit in case of malfunction or danger Do not disconnect the PowerCon 1 mains connector from the unit while it is connected to the main...

Page 12: ...Digital LINK Power fail Bypass Buffer Fig 5 Digital INPUT Bypass A 3 pin female XLR AES EBU 11 AES 3 input and a 3 pin male XLR LINK output 12 are provided The balanced input utilizes a transformer a...

Page 13: ...ound AMP A OUT A INPUT A AMP B OUT B INPUT B Fig 6 NL4 Loudspeaker output connectors and channel assignment The D6 amplifier is supplied with NL4 output connectors 13 Pins 1 2 and 1 2 are wired in par...

Page 14: ...bus signal active high 5 CAN_L CAN low bus signal active low 6 7 8 Enclosure GND CAN Ground The CAN Ground is routed via the cable shielding Within the CAN Bus network shielded cables and shielded RJ...

Page 15: ...19 rack cabinet do not just rely on fixing and supporting amplifiers by their front panels Provide additional support using shelves fixed to the inner sides of the cabinet or rack or the mounting hol...

Page 16: ...stribution can be downsized within the range given in the table The table gives power figures for various types of signal waveforms They were measured on a D6 driving a 4 ohm load both channels to the...

Page 17: ...s per channel 400 watts total The thermal management of the D6 is designed to deliver this power for an unlimited amount of time within an ambient temperature of up to 40 C 104 F With higher ambient t...

Page 18: ...nk noise or Sine wave 10 Hz to 20 kHz with 1 Hz detents Level 57 5 dB to 6 dB with 0 5 dB detents Buzzer Audible signal for error messages Monitoring according to IEC 60849 Sound Systems for Emergency...

Page 19: ...d RMS analog input 105 dBr S N ratio unweighted RMS digital input 110 dBr Damping factor 20 Hz 1 kHz 4 ohms 90 Crosstalk 20 Hz 20 kHz 65 dBr Digital Signal Processing Sampling rate 96 kHz 27 Bit ADC 2...

Page 20: ...re range 0 C to 45 C 32 F to 113 F reduced output power or short term operation Humidity rel average 80 Dimensions weight Height x width x depth 2 RU x 19 x 351 mm 2 RU x 19 x 13 8 Weight 8 kg 17 6 lb...

Page 21: ...the provisions of the respective EC directives including all applicable amendments A detailed declaration is available on request and can be ordered from d b or downloaded from the d b website at www...

Page 22: ...D6 Amplifier Hardware manual 1 9 EN Page 22 of 24...

Page 23: ...D6 Amplifier Hardware manual 1 9 EN Page 23 of 24...

Page 24: ...D2017 EN 01 02 2014 d b audiotechnik GmbH d b audiotechnik GmbH Eugen Adolff Str 134 D 71522 Backnang Germany Phone 49 7191 9669 0 Fax 49 7191 95 00 00_______...

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