d&b audiotechnik J-INFRA, Руководство пользователя

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2.4. Technical specifications
J-INFRA system data
Frequency response (–5 dB standard) 27 Hz - 60 Hz
Frequency response (–5 dB 70 Hz mode) 27 Hz - 70 Hz
Max. sound pressure (1 m, free field)
with D12/30D
141 dB
with D80 144 dB
(SPLmax peak, pink noise test signal with crest factor of 4)
J-INFRA loudspeaker
Nominal impedance Front/Rear 3/6 ohms
Power handling capacity Front (RMS/peak 10 ms) 1200/4800 W
Power handling capacity Rear (RMS/peak 10 ms) 600/1200 W
Components 3 x 21" driver
Connections 1 x NLT4 F
optional 1 x EP5or NL8
Pin assignment
NLT4 F/M: 1+: Front+/ 1–: Front– / 2+: Rear+/ 2–: Rear–
EP5: 1: Front+/2: Front–/ 3: Rear+/4: Rear–/ 5: SD Front
NL8: 1+: Front+/1–: Front–/ 4+: Rear+/4–: Rear–/ 3–: SD Front
Weight 152 kg (335 lb)
J-INFRA cabinet dimensions in mm [inch]
J-INFRA frequency response, standard and 70 Hz mode
d&b J-INFRA Manual 2.2 en 8