The 2 RU, four channel 30D amplifier is designed for permanent integration with applications that require medium to high Sound Pressure Level (SPL) capabilities. This device contains extended input management functionalities with separate Input Gain control for each input channel, General Purpose Inputs/Outputs (GPIO) and a General Fault connector. Enhanced system status monitoring functions such as Input and Load monitoring ensure suitability in an emergency situation.
The 30D shares the same Digital Signal Processing platform as the latest generation of d&b amplifiers, providing configurations for all d&b loudspeakers as well as a linear mode.
The DSP integrated within the 30D incorporates comprehensive loudspeaker management, switchable filtering functions as well as user definable equalization and delay capabilities. This includes two 16-band equalizers, providing optional parametric, asymmetric, shelving or notch filtering and up to 10 s (= 3440 m/11286 ft) signal delay, all of which can be applied independently to each channel.
The 30D is accessible via the d&b Remote network, either via Ethernet using the Open Control Architecture protocol (OCA) or CAN-Bus using RJ45 connectors. The 30D is controlled using the integrated web interface, which enables access via a browser, or using the d&b R1 Remote control software. The device itself contains LEDs to display power, input, data and mute status.
The LoadMatch function integrated within the 30D amplifier electrically compensates for the properties of loudspeaker cable used. The 30D incorporates Class D amplifiers utilizing a power supply with active Power Factor Correction (PFC) suitable for mains voltages 100 V/127 V, 50 – 60 Hz and 208 V/240 V, 50 - 60 Hz and maintains a stable output when used with weak or unstable mains supplies. Input and output connectors are all Euroblock sockets.
The 10D and 30D amplifiers provide four analog inputs, four digital AES/EBU channels through two inputs as well as separate analog and digital links, all on Euroblock connectors. The digital input pairs contain independent Sample Rate Converters. Each input features a separate input gain, meaning sources with various output levels can be used without requiring an external mixing device. All eight individual inputs can be used simultaneously, then summed and routed to any of the four outputs.
System status monitoring
d&b amplifiers incorporate specific functions to check, monitor and control a d&b system in a specific installation scenario. The System check feature can verify the status of a complete reinforcement system by measuring the impedance of the connected loudspeakers. Each driver in the system is checked and compared to the default impedance values for each particular cabinet. This calibration ensures that each loudspeaker performs within a tolerance band, and indicates possible damage to system components. The Input monitoring function can detect an incoming pilot signal regardless of whether this input is routed to an output. The Load monitoring function can detect a possible loudspeaker malfunction. This feature automatically checks load impedance to calculate individual driver status and report any failure.
GPIO and General Fault Contact
The d&b installation amplifiers incorporate separate Euroblock connectors for General Purpose Input / Output (GPIO) and a fault contact. The GPIO connector offers five pins providing additional digital control lines which can be configured to be either an input or output. This enables the use of external devices to control and detect certain functionalities within the 10D and 30D amplifiers. The GPIOs can be configured to Power the device, mute individual or all channels, change the AmpPreset or to check the Mains Voltage, Power or individual channel status. The separate fault contact allows a general device error to be remotely indicated.
Integrated web interface
The D20, D80, 10D and 30D amplifiers feature an integrated web interface to control individual amplifiers via a standard web browser. In small applications, this allows direct control of each device without the need to create an R1 Remote control software file. The amplifier and the computer must be connected to an Ethernet network. Using a wireless access point, these d&b amplifiers can be controlled using mobile devices.
|Controls and indicators|
|POWER||Mains power switch (rear panel)|
|ISP, GR, OVL A/B||LED indicators|
|Digital Signal Processing|
|Equalizer||2 x 16-band PEQ/notch/shelving/asymmetric|
|Latency analog and digital inputs||0.3 msec.|
|Delay setting||0.3 msec. - 10 sec.|
|Configurations||current d&b loudspeakers and linear mode|
|Function switches||d&b loudspeaker specific circuits|
|Frequency generator||Pink noise or Sine wave 10 Hz - 20 kHz|
|SRC (Sample rate converter)||Selectable for AES 1/2 and 3/4|
|Sampling rate||96 kHz/27 Bit ADC/24 Bit DAC|
|INPUT ANALOG (A1 - A4)||3-pin Phoenix Euroblock male|
|ANALOG LINK (A1 - A4)||3-pin Phoenix Euroblock male|
|INPUT DIGITAL (D1/2, D3/4)||3-pin Phoenix Euroblock male, AES3|
|DIGITAL LINK (Output)||3-pin Phoenix Euroblock male|
|Sampling rate||48/96 kHz / 2 Ch/n|
|Sampling Digital AES/EBU||48 kHz/96 kHz|
|Speaker outputs A/B/C/D||2 x 4-pin Phoenix Euroblock female|
|Mix TOP/SUB / 2-Way Active output A/B and C/D||2 x 4-pin Phoenix Euroblock female|
|GPIO (General Purpose Input Output)||1 x 6-pin Phoenix Euroblock male|
|General Fault||1 x 3-pin Phoenix Euroblock male|
|CAN||2 x RJ 45 parallel|
|ETHERNET||2 x RJ 45, 10/100 Mbit Ethernet|
|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
4 x 1000/800 W
4 x 1600/800 W
S/N ratio (unweighted, RMS)
> 104 dBr
> 106 dBr
|Type||Universal range switched mode power supply with active power factor correction (PFC)|
|Rated mains voltage||100 to 240 V, 50 – 60 Hz|
|Dimensions (H x W x D)||2 RU x 19" x 435 mm/17.1"|
|Weight||10.6 kg / 23.4 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.
|10D and 30D introductory brochure||English||16.06.2015||2 MB|
|10D/30D Firmware V2.08.02 Release Notes||International||10.04.2017||60 KB|
|10D/30D Manual 1.8||English||15.02.2017||15 MB|
|EU Declaration of Conformity (CE)||International||04.10.2016||51 KB|
|Software Newsletter October 2016||International||30.09.2016||2 MB|
|The Installation Amplifiers/Software brochure||English||08.03.2017||5 MB|
|TI 310 Ethernet networking 1.1||English||05.12.2014||1 MB|
The amplifier shall be four channel incorporating digital signal processors (DSP) to provide loudspeaker specific configurations and functions and dedicated protection circuits. It shall be equipped with digital and analog signal inputs as well as link outputs, remote control and monitoring capabilities via Ethernet (OCA) or CAN-Bus. User interface shall be a Web Remote interface and via remote control software.
Four analog input connectors shall be provided also acting as link output.
Two digital input connectors shall be provided, each accepting a 2 channel digital (AES3) audio signal.
Analog inputs shall be electronically balanced with an input impedance of 38 kOhm.
The digital inputs shall be transformer balanced with an input impedance of 110 ohm while the digital link output shall be electronically balanced providing analog signal buffering (refresh) and power fail relay (Bypass). Sampling shall be 48 / 96 kHz / 2 Ch/n and Word-Sync: PLL-locked to source (slave mode) synchronization.
Connector type for all audio inputs and link outputs shall be 3-pin Phoenix Euroblock male (Phoenix MSTB 2,5 / 3-STZ).
Signal processing shall utilize 96 kHz sampling rate with 27 Bit ADC / 24 Bit DAC conversion while the latency shall not exceed 0.3 msec.
The output connectors shall be 2 x Phoenix 4-pin Euroblock female (Phoenix IPC 5/ 4-STF-7,62).
Output configurations shall be selectable for dual channel, mixed top/sub and 2-way active modes.
Five GPIO lines shall be provided on an Phoenix 6-pin Euroblock male (Phoenix MSTB 2,5/ 6-STZ) as digital control lines which can be configured either as an input or output (In/Out) and shall allow either level (Hi/Lo active) or edge (rising/falling) triggering.
In addition a FAULT contact shall be provided on an 3-pin Phoenix Euroblock male (Phoenix MSTB 2,5 / 3-STZ) to allow a general device error to be remotely indicated.
It shall incorporate two user definable 16-band equalizers for independent application to each channel allowing parametric filters, notch, hi- and lo- shelve filters as well as asymmetric filters.
A signal delay capability of up to 10 sec. (3440 m / 11286 ft) shall be incorporated for independent application to each channel.
It shall contain a signal generator offering pink noise or sine wave program.
Load monitoring and System check functions shall be included to ascertain the status of the loudspeaker impedance. Load monitoring shall 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.
Input monitoring shall be included to allow detection of incoming pilot signals.
Compensation for cable length shall be incorporated to improve impulse response.
A Fallback function shall be available to enable the definition of primary (Regular) and secondary (Fallback) signal paths for analog and digital input signals with two different modes (Manual or Auto). It shall ensure that any secondary or emergency signal fed to the Fallback inputs is transmitted when required.
The Override function shall be available to allow a dedicated analog input to be set as a major signal path with highest priority for general messages or emergency services.
An AutoStandby function shall automatically switch the amplifier to Standby mode after a predefined time when the incoming signal level at the individually specified inputs drops below a defined threshold. The function shall be independent of the mute status of the respective channels. An AutoWakeup function shall automatically repower the amplifier, when an input signal is present and exceeds a defined threshold.
A universal range switched mode power supply shall be incorporated and allow mains range of 100 to 240 V AC, 50 - 60 Hz mains power supply voltages. Mains voltage monitoring, mains inrush current limiter, self-resetting overtemperature, under- and overvoltage protection shall be incorporated.
Power factor compensation (PFC) shall be incorporated to provide a clean and efficient sinusoidal current draw.
It shall have temperature and signal controlled fans for cooling the internal assemblies.
The power amplifier channels shall have ground fault protection, output pop-noise suppression, DC offset protection, output HF voltage limitation, output current limitation/protection and self-resetting overtemperature protection.
The output power shall be 4 x 1000/800 W into 4/8 ohms at a crest factor (CF) of 6 dB, all channels driven.
Damping factor (20 Hz – 200 Hz into 4 ohms) shall be >80 while the S/N ratio (unweighted, RMS) shall be >104 dBr (analog input) and >106 dBr (digital input).
The dimensions (HxWxD) shall not exceed 2RU x 19" x 435 mm (2RU x 19" x 17.1") and shall weigh no more than 10.6 kg (23.4 lb).
The amplifier shall be the 30D by d&b audiotechnik GmbH.