d&b D12 Hardware - Manual (Page 24)

Protection circuits
Mains inrush current limiter................................................................5 A RMS at 230 V
......................................................................................................10 A RMS at 115/100 V
Speaker switch on delay............................................................................Approx. 2 sec.
Overvoltage protection...........................................................................Up to 400 VAC
Self-resetting overtemperature protection...........................................75 °C / 167 °F
Output short and open circuit protection.................................................± 60 A peak
Overload protection amplifier output..................................SOA of the output stage
Audio data (linear setting with subsonic filter)
Rated output power (THD + N 0.1%)..................................2 x 750 W into 8 ohms
both channels are driven
......................................................................................................2 x 1200 W into 4 ohms
both channels are driven
Frequency response (–1 dB)....................................................................28 Hz - 40 kHz
THD+N (20 Hz – 20 kHz).....................................................................................< 0.1 %
IM (SMPTE)...............................................................................................................< 0.1 %
S/N ratio (unweighted, RMS)............................................................................>110 dBr
Damping factor (20 Hz – 1 kHz into 4 ohms).......................................................>200
Crosstalk (20 Hz – 20 kHz)..............................................................................< – 65 dBr
Digital Signal Processing
Sampling rate:.........................................................96 kHz / 27 Bit ADC / 24 Bit DAC
Basic delay..............................................................................................................0.3 msec.
ADC dynamic.........................................................................................................> 110 dB
Input dynamic........................................................................................................> 127 dB
DAC dynamic.........................................................................................................> 110 dB
Power supply
Autosensing switched mode power supply for mains voltages 115/230 V
(optional 100/200 V), 50 - 60 Hz.
Mains connector.......................................................................................PowerCon (blue)
Mains voltage 115/230 V (min./nom./max.)...............98/115/134 V, 50 - 60 Hz
low range
..............................................................................................195/230/265 V, 50 - 60 Hz
high range
Mains voltage 100/200 V (min./nom./max.)...............85/100/117 V, 50 - 60 Hz
..................................................................................................................................low range
...............................................................................................170/200/234 V 50 - 60 Hz
high range
Mains fuse..........................................................................................2 x 10 A Time lag (T)
5 x 20 mm, high breaking capacity
Operating conditions
Temperature range*.........................................................5°C – 35 °C / 41 °F – 95 °F
*sum of average output power of 2 x 400 W (800 W) into 4 ohms for
continuous operation
Temperature range**...................................................5 °C – 45 °C / 41 °F – 113 °F
**reduced output power or short term operation
Humidity (rel.), average...............................................................................................70 %
Dimensions and weight
Height x width x depth.................................................................3 RU x 19" x 353 mm
...............................................................................................................3 RU x 19" x 13.9 "
Weight..........................................................................................................13 kg / 28.7 lb
D12 Amplifier, Hardware manual (4.9 EN) Page 24 of 28