The 2 RU 40D amplifier provides the power density required for installation purposes while the powerful signal processing extends the level of functionality of the on-board features.
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 user interface of the amplifier consists a 4.3" color touchscreen providing comprehensive information of the device configuration and enhanced status monitoring.
The DSP integrated within the 40D incorporates comprehensive loudspeaker management, switchable filtering functions as well as user definable equalization and delay capabilities. The user defineable equalizer features two independent 16-band EQ groups within each channel, providing parametric, notch, shelving and asymmetric filters as well as a graphic EQ (via the d&b R1 Remote control software). The delay capability covers a range of up to 10 s. All loudspeaker specific functions such as CUT, HFA, HFC, THC or CPL are available. The DSP unit of the amplifier has a fixed latency of 0.3 ms.
All functions of the 40D are configured via the d&b Remote network via Ethernet (AES70/OCA). To operate the device, the d&b R1 Remote control software is required. The initial configuration of the network parameters after a factory reset can also be done via web browser.
For applicable loudspeakers, d&b LoadMatch enables the 40D amplifier to electrically compensate for the properties of the cable used to connect the loudspeakers to the amplifier output. This function which covers a bandwidth of up to 20 kHz preserves the tonal balance when cable lengths of up to 70 m (230 ft) are used.
Due to its design LoadMatch does not require additional wires and is therefore applicable with any connector type used. To provide optimum compensation, cable length and cross-sectional data as well as the number of loudspeakers connected to the amplifier channel can be entered on the amplifier.
Digital Signal Processing
Equalizer 2 x 16-band PEQ/notch/shelving/asymmetric
Latency analog and digital inputs 0.3 ms
Delay setting 0.3 ms - 10 s
Configurations current d&b loudspeakers (except GSL, SL-SUB, J-Series, M2)
Function switches d&b loudspeaker specific circuits
Frequency generator Pink noise or Sine wave 10 Hz - 20 kHz
Controls and indicators
Status information and monitoring Color touchscreen, 4.3" 480 x 272 pixel
Connectors
Sampling frequency Digital AES/EBU 44.1, 48, 96, 192 kHz
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
INPUT Network Audio (Milan) (M1-M8) etherCON® built-in 5-port AVB Ethernet switch 100/1000 Mbit
DIGITAL LINK (Output) 3-pin Phoenix Euroblock male, AES3
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 14-pin Phoenix Euroblock male
Ethernet 2 x RJ 45, 1 Gbit / 100 Mbit
Mains connector powerCON® TRUE1 TOP
FAULT 1 x 3-pin Phoenix Euroblock male
Data (linear setting with subsonic filter)
Maximum output power per channel
(THD+N < 0.5%, all channels driven)
CF = 12 dB at 4 / 8 ohms 4 x 2400/2000 W
Power supply
Type Autosensing switch mode power supply with active Power Factor Correction (PFC)
Rated mains voltage 100 - 127 / 208 - 240 V, 50 - 60 Hz
Dimensions / weight
Dimensions (h x w x d) 2 RU x 19" x 465 mm/18.3"
Weight 13,3 kg
29,3 lb
