Gromax Technologies Private Limited
Gromax Technologies Private Limited
Shakarpur Khas, New Delhi, Delhi
GST No. 07AAECG1953H1ZO
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BOSCH Praesideo Voice Evacuation System

Prominent & Leading Distributor / Channel Partner from New Delhi, we offer praesideo digital public address and emergency sound system, bosch prs-nco3 praesideo network controller, bosch prs-xpxxx and lbb 4428 power amplifiers, bosch lbb 4430/00 call station basic and bosch lbb 4438/00 call station remote.

Praesideo Digital Public Address And Emergency Sound System

Praesideo Digital Public Address And Emergency Sound System
  • Praesideo Digital Public Address And Emergency Sound System
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Approx. Price: Rs 15 Lakh / PieceGet Latest Price
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Product Details:

BrandBOSCH
Mike Set TypeWired
Mixer TypePowered Mixer
WirelessNo
Amplifier Power500 watt
Voltage100 to 240 VAC +-10%,50/60 Hz
Air pressure600 to 1100 h Pa
Phantom supply12 V +-1 V @ 15 mA
Power consumptionPmax -3 dB* / idle** / standby
Rated load capacitance125 nF (100 V); 250 nF (70 V)
Rated load resistance80 ohm (100 V); 40 ohm (70 V)
Rated output power (per channel)250 W (1 min. at 55 degC) 125 W (30 min. at 55 degC,cont. at 30 degC) 60 W (cont. at 55 degC)
Relative humidity15% to 90%
S/N62 dBA with 25 dB headroom
Storage temperature-40 degC to +70 degC (-40 degF to +158 degF)
Weight LBB 4421/1013 kg (28.7 lb)
CMRR40 dB at 1 kHz
in front of brackets40 mm (1.6 in)
Connector6-pole header for removable screw connector (mono,balanced)
Dimensions (H x W x D)92 x 440 x 400 mm (3.6 x 17.3 x 15.7 in)
Frequency response-3 dB @ 100 Hz and 16 kHz
Input impedance1360 ohm
Input range-7 dBV to +8 dBV ref nominal input value
Nominal input level-57 dBV
Operating temperature-5 degC to +55 degC (+23 degF to +131 degF)

There are four types of power amplifier units in the Praesideo product range. These differ in the number of amplifier channels per frame: one, two, four, or eight. The overall power rating is 500 watts for all of the amplifiers. The power amplifiers can be set to 100 V, 70 V and 50 V output tappings. They have short-to-ground and short-circuit detection functions, and can generate
their own pilot tone for supervision purposes.

Features:
  • 1, 2, 4, or 8 audio outputs (selection from 100 / 70 / 50 V outputs)
  • Audio processing and delay for each amplifier channel
  • Amplifier supervision and spare amplifier switching
  • Loudspeaker line and loudspeaker supervision (LBB 4428/00 only line supervision)
  • Eight control inputs and 1, 2, 4 or 8 control outputs
Controls and indicators
  • 2 x 16-character LCD for status display
  • Rotary/push control button
  • Mains switch

 

Interconnections

  • Mains input
  • Battery backup input
  • Two system network connections
  • Two mic/line inputs (four for LBB 4428/00)
  • 100 V, 70 V or 50 V outputs (for each amplifier channel)
  • 50 V output
  • Eight programmable control inputs
  • Control output (for each amplifier channel)
  • Headphone output
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Additional Information:

  • Item Code: PRSNCO3
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Bosch PRS-NCO3 Praesideo Network Controller

Bosch PRS-NCO3 Praesideo Network Controller
  • Bosch PRS-NCO3 Praesideo Network Controller
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Approx. Price: Rs 5.43 Lakh / PieceGet Latest Price
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Product Details:

BrandBOSCH
ColorCharcoal with silver
Output Impedance100 ohm
Humidity15% to 90%
ConnectorsXLR and stereo cinch (for each line)
Voltage48 Vdc -10% to +20%
MountingStandalone; 19" rack
Weight7 kg (15.4 lb)
Connector3-pin XLR
Crosstalk-85 dB
Input Impedance1360 ohm
Nominal Input Level-57 dBV
OperationClosing contact (with supervision)
Air pressure600 to 1100 hPa
Input range-7 dB to 8 dB ref nominal input level
Line inputs2 x
Line outputs4 x
Mic / line inputs2 x
Operating temperature-5 to +55 oC (+23 oF to +131 oF)
CMRR55 dB at 100 Hz
Phantom supply12 V +-1 V @ 15 mA
Power consumption21 W with no load 160 W with maximum load
S/N89 dBA at maximum level
Signal range-12 dBV to +18 dBV (XLR),-24 dBV to +6 dBV (cinch)
Storage temperature-40 to +70 oC (-40 oF to +158 oF)
behind brackets360 mm (14.2 in)
in front of brackets40 mm (1.6 in)
in rack, with brackets88 x 483 x 400 mm (3.5 x 19 x 15.7 in)
Control inputs8 x
Control outputs5 x
Dimensions (H x W x D)92 x 440 x 400 mm (3.6 x 17.3 x 15.7 in)
Distortion at 1 kHz0.05%
Frequency response20 Hz to 20 kHz (-3 dB)

The network control unit is the heart of the Praesideo system. The unit routes up to 28 simultaneous audio channels, delivers power to the system, reports faults, and controls the system. Audio inputs can be announcements from call stations, background music, or local audio. The network control unit can be configured for the most complex public address systems. The configuration can be done comfortably and efficiently via a PC. The PC is only needed for configuration. The controller can operate independently of the PC. However, the controller can use a PC to display information on the system status using the software, supplied with the unit. The unit can be freestanding on a tabletop or mounted in a 19" rack. The PRS‐NCO3 network controller needs PRS‐SW software version 4.0 or higher.
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Additional Information:

  • Item Code: PRS-NCO3
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BOSCH PRS-xPxxx and LBB 4428 Power Amplifiers

BOSCH PRS-xPxxx and LBB 4428 Power Amplifiers
  • BOSCH PRS-xPxxx and LBB 4428 Power Amplifiers
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Approx. Price: Rs 6.8 Lakh / PieceGet Latest Price
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Product Details:

Model NumberPRS xPxxx and LBB 4428/00
Type Of ProductPower amplifier
Power500 watt
Channel4, 2
BrandBOSCH
ColorBlack gray
Weight16
Dimension92 x 440 x 400 mm

  • 1, 2, 4, or 8 audio outputs (selection from 100 / 70 / 50 V outputs)
  • Audio processing and delay for each amplifier channel
  • Amplifier supervision and spare amplifier switching
  • Loudspeaker line and loudspeaker supervision (LBB 4428/00 only line supervision)
  • Eight control inputs and 1, 2, 4 or 8 control outputs
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  • Item Code: PRS
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BOSCH LBB 4430/00 Call Station Basic

BOSCH LBB 4430/00 Call Station Basic
  • BOSCH LBB 4430/00 Call Station Basic
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Approx. Price: Rs 1.38 Lakh / PieceGet Latest Price
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Product Details:

ColorCharcoal
Humidity15% to 90%
External power supply18 to 56 VDC
Dimensions (H x W x D)90 x 160 x 200 mm
Weight0.95 kg (2.1 lb)
MountingTabletop
Length of mic stem380 mm
Operating temperature-5 degC to +45 degC (+23 degF to +113 degF)
Storage temperature-20 degC to +70 degC (-4 degF to +158 degF)
Air pressure600 to 1100 hPa
Power consumption4.4 W (DC) excluding keypads
Nominal acoustic input level75 to 90 dB SPL
S/N60 dB at 85 dB SPL
Frequency response340 Hz to 14 kHz (-3 dB)
Loudspeaker S/N80 dB at max. output
Sound pressure level85 dB (SPL) at 0.5 m and 1 kHz
Headset Connector3.5 mm jack
Recommended typeHosiden HBH 0058

The call station basic can make manual or pre-recorded announcements to any pre-assigned zones.The call station basic has a microphone on a flexible stem, a push-to-talk button, a speaker, and a headset socket. The LBB 4430/00 can be extended with up to 16 keypads (LBB 4432/00 or LBB 4434/00), each with
eight programmable keys. Extension with a numeric keypad (PRS‐CSNKP) is also possible.

Features:
  • Redundant network connection
  • Power ‘ON’ indication
  • Status/fault indications
  • Indication that the priority level of destinations is higher than that of the pending announcement
  • Supervision of microphone capsule

 

Functions
The call station has a cardioid, supervised microphone on a gooseneck stem with good speech intelligibility. A limiter and a speech filter improve intelligibility and prevent clipping of the audio. It has a volume control for the monitoring speaker and the headset. When it plays a chime or a pre-recorded message, the call station activates its speaker. When a headset is connected, it replaces the microphone and speaker. The call station has its own DSP, and converts between analog and digital audio. The audio
processing can include sensitivity adjustment, limiting, and parametric equalization. Up to 16 call station keypads can connect to the station via a serial communication link. The station provides the power for the keypads. Up to 224 priorities can be assigned to the call station. All configuration can be done via the Praesideo network controller. The call station is fully supervised and supports fail-safe operation. Even if the Praesideo network
controller fails, the call station is still able to put through emergency calls.

 

Controls and indicators

  • Three status LEDs
  • Configurable PTT-key
  • Volume control for loudspeaker/headset

 

Interconnections

  • Two system network connections
  • Serial data and power supply interface for call station keypads
  • 3.5 mm jack for headset

 

 

 

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Additional Information:

  • Item Code: LBB-4430-00
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BOSCH LBB 4438/00 Call Station Remote

BOSCH LBB 4438/00 Call Station Remote
  • BOSCH LBB 4438/00 Call Station Remote
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Approx. Price: Rs 1.2 Lakh / PieceGet Latest Price
Product Brochure

Product Details:

ColorCharcoal
External power supply18 to 56 VDC
Power consumption2.9 W at 48 V without keypads
Nominal acoustic input level75 to 90 dB SPL
S/N80 dB at max.
Frequency response340 Hz to 14 kHz (-3 dB)
Sound pressure level85 dB (SPL) at 0.5 m and 1 kHz
Connector3.5 mm jack
Recommended typeHosiden HBH 0058
Dimensions (H x W x D)90 x 160 x 200 mm (3.5 x 6.3 x 7.9 in)
Length of goose neck380 mm (15 in)
Weight1 kg (2.2 lb)
MountingStandalone
Operating temperature-5 degC to +45 degC (+23 degF to +113 degF)
Storage temperature-20 degC to +70 degC (-4 degF to +158 degF)
Humidity15% to 90%
Air pressure600 to 1100 hPa

The LBB 4438/00 is a call station with the same functionality as the basic call station, LBB 4430/00, but it uses CAT-5 cable for its connection to the Praesideo network. It connects, one-to-one, to the call station interface, LBB 4437/00, which is part of the Praesideo optical network. The CAT-5 cable, carrying digital audio and control data, can be as long as 1 km. The length of the CAT-5
cable is not a part of the Praesideo optical network length.
This considerably increases the overall possible length of
the optical network. The LBB 4438/00 can be extended with up to 16 keypads (LBB 4432/00 or LBB 4434/00), each with eight
programmable keys.

Features:-
  • Connects to call station interface via CAT-5 cable
  • Up to 1 km from Praesideo optical network
  • Uses standard Praesideo keypads for extension
  • Built-in limiter
  • Powered via CAT-5 and/or local power supply
  • Complete supervision
  • IEC 60849 compliant

 

Functions
The call station has a cardioid, supervised microphone on a
gooseneck stem with good speech intelligibility. A limiter and a speech filter improve intelligibility and prevent clipping of the audio. It has a volume control for the monitoring speaker and the headset. When it plays a chime or a pre-recorded message, the call station activates its speaker. When a headset is connected, it replaces the microphone and speaker. The remote call station connects via a CAT-5 cable to an LBB 4437/00 unit, which interfaces it to the Praesideo optical network. The station gets its power from the interface unit via the CAT-5 cable, but is also equipped with a local power supply connection for extreme cases with a very long cable and many keypads. Up to 16 call station keypads can connect to the station via a serial communication link. The call station provides the power for the keypads. Up to 224 priorities can be assigned to the call station. All configuration can be done via the Praesideo network controller. The remote call station is fully supervised and complies with IEC 60849. The call station supports fail-safe operation. Even if the Praesideo network controller fails, the call station is still able to put through emergency calls.

 

Controls and indicators

  • Three status LEDs
  • Configurable PTT-key
  • Volume control for loudspeaker/headset

 

Interconnections

  • RJ45 connector for CAT-5 connection
  • Serial data and power supply interface for call station keypads
  • Power supply connector (lockable Kycon type)
  • 3.5 mm jack for headset/headphone
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Additional Information:

  • Item Code: LBB-4438-00
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S.K. Chauhan (Director)
Gromax Technologies Private Limited
S-548, 2nd Floor, School Block, Part 2
Shakarpur Khas, New Delhi - 110092, Delhi, India


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