d&b audiotechnik D40 - Technical Specifications; Environmental and Power Specifications; Input;Output and Network Connectivity; Signal Processing and User Interface

Technical specifications
Operating conditions
Operating temperature (*continuous/**short-term)
–10 °C ... +40*/+50** °C (+14 °F ... +104*/+122** °F)
Storage temperature –20 °C ... +70 °C (–4 °F ... +158 °F)
Humidity (rel.), non-condensating 70%
Power supply
Switched mode power supply with automatic mains range selection and
active Power Factor Correction (PFC).
Mains connector
powerCON
®
TRUE 1 TOP
Rated mains voltage (High range) 208 - 240 V, 50 - 60 Hz
Rated mains current (High range) 13 A
Rated mains voltage (Low range) 100 - 127 V, 50 - 60 Hz
Rated mains current (Low range) 20 A
Protection circuits
Mains and power supply: Overvoltage and undervoltage,
inrush current limiter, internal fuse.
Output: Overcurrent, DC offset, HF voltage limiter, pop-noise
suppression.
Cooling: Temperature-dependent fan, self-resetting
overtemperature protection.
Power consumption (typical values)
Standby
13 W
Idling 130 W
Peak output 2900 W
Audio power outputs*
SPEAKER OUTPUTS A/B/C/D
4 x NL4
4 CHANNEL OUTPUT 1 x NL8
Maximum output voltage/current 180 V
peak
/35 A
peak
Output power rating EIA-426B noise CF 12 dB 4 x 2000 W/8 Ω
4 x 2400 W/4 Ω
Sine wave 1 kHz, long term, +40 °C (+104 °F) 4 x 250 W/4 Ω
Frequency response (–1 dB, Linear mode) 35 Hz – 25 kHz
Gain (Linear mode @ 0 dB) 31 dB
Output noise/Dynamic range
Output noise (BW 20 kHz)/dynamic range (BW 20 kHz, reference
180 V
pk
)
Analog input 350 µV
RMS
/111 dB
Analog input, A-weighting 250 µV
RMS
/114 dB
Digital input 200 µV
RMS
/116 dB
Digital input, A-weighting 150 µV
RMS
/119 dB
THD+N / Crosstalk
THD+N (unweighted, 20 – 20 kHz)
4 x 250 W/8 ohms < –86 dB/0.005 %
4 x 250 W/4 ohms < –83 dB/0.007 %
Crosstalk (20 – 20 kHz) < –70 dBr
4 x 250 W into 8/4 Ω
Analog inputs and outputs
INPUT A1 - A4 3 pin XLR female
Pin assignment 1 = GND, 2 = pos., 3 = neg.
Input impedance 32 kΩ, electronically balanced
CMRR @ 100 Hz/1 kHz / 10 kHz >80/>80/>70 dB
Maximum input level (balanced/unbalanced) +25/+18 dBu
+27.3 dBu @ 0 dBFS
LINK A1 - A4, parallel to input 3 pin XLR male
Pin assignment 1 = GND, 2 = pos., 3 = neg.
Digital inputs and outputs
IN - D1/2, D3/4 3 pin XLR female, AES3
Pin assignment 1 = GND, 2 = AES Signal, 3 = AES Signal
Input impedance 110 Ω, transformer balanced
Sampling frequency 44.1 | 48 | 96 | 192 kHz
Word length 16 - 24 bit
OUT - D1/2, D3/4 3 pin XLR male
electronically balanced
Output modes Mains on: analog signal buffering (refresh)
Mains off/power fail: bypass relay
Network (PRI/SEC)
Connector type
2 x RJ 45 (etherCON
®
)
PRI Remote control via R1, Star topology
SEC Currently disabled
IP settings (factory default)
IP address/Subnet mask
192.168.1.40/255.255.255.0
Digital Signal Processing
System start-up time
< 21 sec.
Time to tone (Standby/ReadyStandby) < 3/< 1 sec.
Time to tone (Off/Wake on Audio) < 21 /< 4 sec.
Conversion 96 kHz
Latency analog/digital (AES) input 0.3/0.3 msec.
A/D conversion 27 Bit (dual-stacked A/D converters)
Internal processing Combination of high-resolution fixed point
and floating point processing
Equalizer two user definable 16-band equalizers
Filter types: PEQ/Notch/HiShlv/LoShlv/Asym
Delay 0.3 msec. - 10 sec.
Frequency generator Pink noise or Sine wave 10 Hz – 20 kHz
Controls and indicators
POWER
Mains power switch
SCROLL/EDIT Digital rotary encoder
TFT color touchscreen 4.3"/480 x 272 pixels
3 Technical specifications
d&b D40 Reference manual 1.5 en 7