4-zone matrix amplifiers of 120W in 100V

JD-MEDIA

120W 4-zone matrix amplifiers available in 2 power ratings:

PTT 100N or RM-400 compatible call microphone stations

More details

Livré sous 48/72h

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6 inputs / 4 outputs - 4 Ω and 70/100 V - 230V/ DC 24V - 19" 3U

Characteristics:

  • 4 zone (z1-z4) with multiple announcements
  • Volume equalizer for 4 zones
  • Output volume and vumeter for each zone
  • HP output/headphones for each zone
  • Chime and siren controlled by PTT 100N or RM-400 microphone console
  • Phantom power (inter ON/OFF) on microphone inputs
  • Input terminal for announcements (inter selection link for each zone)
  • Input terminal for priority announcement (priority signal/MASTER)
  • Terminal block for connecting a standby amp for each zone - EXT AMP output to amplify the power on each zone
  • Input terminal block for PTT call station microphone for emergency announcements (Link selection intercom for each zone)
  • RJ45 socket for system remote control
  • Type RS-486, maximum distance 1.2 km
  • Extension: connection of 32 desk microphones
  • 70V/100V output impedance selection
  • HP outputs ¾ conductors
  • Amplification fault detection circuit
  • 24 V DC output for emergency power supply via FIR 400
  • Circuit for reducing power consumption when the amplifier is in standby mode without signal (23W)
SPECIFICATIONSMA 412
Type

4-zone matrix amplifiers

Power

4 x 120 W

Power supply

AC 230V – 50 Hz - DC 24V

Speaker output

On-line 70V and 100V

In low impedance 4 Ω

Inputs/Sensitivity

MIC / LINE 1 to 3: 50 dB symmetrical

MIC / LINE 4 to 5 : -10 dB asymmetrical

TEL paging: -10 dB symmetrical

Line OUT output

REC OUT: 0dB (775mV) asymmetrical

PRE OUT: 0dB (775mV) asymmetrical

Tone setting

Bass :± 10 dB at 100 Hz

Treble :± 10 dB at 10 kHz

Frequency Response

45 Hz – 20 000 Hz (± 3 dB)

Signal-to-noise ratio

MIC : ≥ 70 dB

LINE : ≥ 90 dB

Consumption

1317 W

Total harmonic distortion

<0,3%

Protection and cooling

Fan, Thermal protection, overload and short-circuit

Dimensions (W x D x H)

483 x 377 x 88 mm

Weight

16,5 kg

Accessories

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