Dynacord Car Amplifier DPA 4140 ユーザーズマニュアル

45

interfering voltage (A)

≤

 1.2 mV = -56 dBu

electronically balanced

nominal output voltage

2 V = + 8.2 dBu

nominal load impedance

600 ohms

ambient temperature range

+5 °C .. +40 °C

dimensions (W x H x D) 

483 x 132 x 345 mm

depth with / without connections

max. 400 mm / 340 mm

weight without extensions

16.7 kg

finish 

anthracite

extension kits for the DPA 4120 and DPA 4140:
NRS 90208 input transformer for floating, balanced input

Art. No.

121 641

NRS 90222 remote module

Art. No.

121 674

NRS 90224 pilot tone & ground fault surveillance 

Art. No.

121 676

NRS 90225 standard input module

Art. No.

121 677

NRS 90227 output transformer for floating, balanced monitor output 

Art. No.

121 679

see specifications DPA 4120 / DPA 4140

see specifications DPA 4120 / DPA 4140

frequency response

20 Hz .. 20 kHz

input impedance

≥

 10 k ohms

idling ratio

1:1

winding resistance; primary

1420 ohms at 20°C

winding resistance; secondary

1420 ohms at 20°C

frequency response

40 Hz .. 20 kHz

nominal load impedance

≥

 600 ohms

idling ration

1:1

winding resistance; primary

18 ohms at 20°C

winding resistance; secondary

18 ohms at 20°C

13.5.1 pilot tone surveillance
pilot tone frequency

19 kHz ± 1%

error recognition threshold

≤

 12 mV

fault message output via NRS 90225

collective fault message via READY relay

fault message output via NRS 90222

PROMATRIX manager DPM 4000

13.5.2 ground fault surveillance
input loudspeaker line 4 ohms / 50V / 70V / 100V
fault message output via NRS 90225

collective fault message via READY relay

fault message output via NRS 90222

PROMATRIX Manager DPM 4000

disruptive strength

1000 Veff

error recognition threshold

≤

 50 k ohms