D6 amplifier

The 2 RU two channel lightweight D6 amplifier delivers medium power into low impedance loads between 4 and 16 ohms and is ideally suited for use in both mobile and installation environments.

The D6 contains configurations for d&b loudspeakers and a linear mode; exceptions are 2-Way Active, V-Series and B2-SUB. The signal delay capability enables user definable settings of up to 340 msec (=100 m/328.1 ft) to be applied independently to each channel. The same applies to the 4-band parametric equalizer, providing optional boost/cut or notch filtering. The D6 incorporates a digital rotary encoder and a LCD display to configure the amplifier.

The D6 incorporates Class D amplifiers utilizing a switch mode power supply with active Power Factor Correction (PFC), suitable for mains voltages 100 V/120 V/200 V/ 230 V, 50 - 60 Hz and maintains a stable and increased output when used with weak or unstable mains supplies. It is supplied with two NL4 loudspeaker output connectors. RJ 45 connectors enable access to the Remote network via CAN-Bus. d&b System check verifies that the system performs within a predefined condition, whilst d&b Load monitoring enables an automatic and continuous impedance monitoring. Both can determine the status of an LF or HF driver in systems with multiple elements, even if these are crossed over passively.

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Controls and indicators  
POWER Mains power switch
SCROLL/EDIT Digital rotary encoder
Display Liquid Crystal Display (LCD)/120 x 32 pixel
ISP, GR, OVL A/B LED indicators
Digital Signal Processing  
Equalizer 4-band PEQ/Notch
Latency analog and digital inputs 0.3 msec.
Delay setting 0.3 - 340 msec with 0.1 msec detents
Configurations current d&b loudspeakers and linear mode except 2-Way Active, V-Series and B2-SUB
Function switches d&b loudspeaker specific circuits
Frequency generator Pink noise or Sine wave
Sampling rate 96 kHz/27 Bit ADC/24 Bit DAC
INPUT ANALOG (A1, A2) 3 pin XLR female
ANALOG LINK (A1, A2) 3 pin XLR male
INPUT DIGITAL (D1, D2) 3 pin XLR female AES 3
DIGITAL LINK (Output) 3 pin XLR male
Sampling rate 48 kHz/96 kHz
Sampling Digital AES/EBU 48 kHz/96 kHz
REMOTE 2 x RJ 45 parallel, CAN-Bus
Mains connector powerCON®
Data (linear setting with subsonic filter)  
Maximum output power per channel (THD+N < 0.5%, all channels driven)
CF = 6 dB at 4 / 8 ohms
CF = 12 dB at 4 / 8 ohms
2 x 600/350 W
2 x 600/350 W
S/N ratio (unweighted, RMS) > 110 dBr
Power supply  
Type Autosensing switch mode power supply with active Power Factor Correction (PFC)
Rated mains voltage high range 208 - 240 V, 50 - 60 Hz
Rated mains voltage low range 100 - 127 V, 50 - 60 Hz
Dimensions, weight  
Dimensions (H x W x D) 2 RU x 19" x 353 mm/13.9"
Weight 8 kg/17.6 lb

Application information is presented for guidance only. d&b reserves the right to make any necessary changes to the products and the published specifications. As part of the ongoing development program d&b tries to maintain the highest degree of product compatibility.



Title Language Date Size
D6 Firmware V1.16 Release notes International 25.08.2015 64 KB
D6 Hardware manual 1.9 English 21.12.2017 559 KB
D6 Software manual 1.3 en English 08.01.2013 391 KB
EU Declaration of Conformity (CE) International 06.03.2018 53 KB
How to install the USB driver for R60 and D6 on Windows 10 International 19.11.2015 360 KB
How to install the USB driver for R60 and D6 on Windows 8 International 19.11.2015 369 KB
How to install the USB driver for R60 and D6 on Windows 8.1 International 19.11.2015 369 KB
The Amplifiers/Software brochure English 06.04.2018 7 MB
TI 315 D12 AES/EBU Input and Wiring English 27.08.2008 403 KB
TI 330 Cardioid Subwoofer Array - CSA English 08.09.2016 263 KB


Architectural specifications

Architectural specifications

Architects' and engineers' specification
The amplifier shall be dual channel incorporating digital signal processors (DSP) to provide loudspeaker specific configurations and functions for d&b passive loudspeakers. It will be equipped with digital and analog signal inputs as well as link outputs, remote control and monitoring capabilities and sophisticated protection circuits.
It will have a temperature and signal controlled fan to cool the internal assemblies. A user definable 4-band parametric equalizer, and signal delay capability of up to 340 ms shall be incorporated for independent application to each channel.
It will contain a signal generator offering pink noise or sine wave program.
Load monitoring and System check functions will be included to ascertain the status of the loudspeaker impedance. Load monitoring shall be included to allow impedance monitoring to determine the status of an LF or HF driver in systems with multiple elements, even if these are crossed over passively.
Load and Input Monitoring shall be suitable for use in applications compliant to EN 60849/IEC 60849 �Sound Systems for Emergency Purposes�.
User interface shall be via a Liquid Crystal Display (LCD) in conjunction with a digital rotary encoder and via the d&b Remote network.

Power supply:
The power supply shall be autoranging switched mode for use with 100/115/200/230 V, 50 - 60 Hz. supplies fitted with a mains inrush current limiter, self-resetting over temperature and overvoltage protection.

Power amplifier:
The power amplifier channels shall have a switch on delay, DC protection, self-resetting over temperature protection, output short circuit and overload protection.

Rated output power (THD+N < 0.1%):
2 x 350 W into 8 ohms, both channels driven
2 x 600 W into 4 ohms, both channels driven

Damping factor: (20 Hz - 1 kHz, Ref. 4 Ohm): >90
S/N ratio (unweighted, RMS): > 105 dBr
Output connectors: 2 x NL4

Digital Signal Processing:
Sampling Rate: 96 kHz / 27 Bit ADC / 27 Bit DAC
Analog input latency: 0.3 ms (including conversion)
Delay: up to 340 ms (100 m/328 ft),
EQ: 4-band EQ with PEQ or Notch function
Frequency generator: pink noise and sine wave
Operator input inhibit/password protection

Analog inputs: 2 x XLR 3-pol. female, input impedance 44 kOhms, electronically balanced
Analog Link outputs: 2 x XLR 3-pol. male
Digital input (AES/EBU - AES 3): 1 x XLR 3-pol. female, input impedance 110 ohms, transformer balanced
Sampling: 48/96 kHz, 2Ch/n
Synchronisation: Word-Sync: PLL-locked to source (slave-mode)
Digital Link: 1 x XLR 3-pol. male, signal buffering (refresh), power fail bypass relay

Level control (input sensitivity): � 57.5 dB ... +6 dB with 0.5 dB detents.

Dimensions: (HxWxD): 2 RU x 19" x 353 mm / 13.9"
Weight: 8 kg / 17,6 lb

Manufacturer: d&b audiotechnik GmbH