Gromax Technologies Private Limited
Shakarpur Khas, New Delhi, Delhi
GST No. 07AAECG1953H1ZO
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Call 08048410077
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Product Details:
| Brand | BOSCH |
| Mike Set Type | Wired |
| Mixer Type | Powered Mixer |
| Wireless | No |
| Amplifier Power | 500 watt |
| Voltage | 100 to 240 VAC +-10%,50/60 Hz |
| Air pressure | 600 to 1100 h Pa |
| Phantom supply | 12 V +-1 V @ 15 mA |
| Power consumption | Pmax -3 dB* / idle** / standby |
| Rated load capacitance | 125 nF (100 V); 250 nF (70 V) |
| Rated load resistance | 80 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 humidity | 15% to 90% |
| S/N | 62 dBA with 25 dB headroom |
| Storage temperature | -40 degC to +70 degC (-40 degF to +158 degF) |
| Weight LBB 4421/10 | 13 kg (28.7 lb) |
| CMRR | 40 dB at 1 kHz |
| in front of brackets | 40 mm (1.6 in) |
| Connector | 6-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 impedance | 1360 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) |
Interconnections
Additional Information:
Product Details:
| Brand | BOSCH |
| Color | Charcoal with silver |
| Output Impedance | 100 ohm |
| Humidity | 15% to 90% |
| Connectors | XLR and stereo cinch (for each line) |
| Voltage | 48 Vdc -10% to +20% |
| Mounting | Standalone; 19" rack |
| Weight | 7 kg (15.4 lb) |
| Connector | 3-pin XLR |
| Crosstalk | -85 dB |
| Input Impedance | 1360 ohm |
| Nominal Input Level | -57 dBV |
| Operation | Closing contact (with supervision) |
| Air pressure | 600 to 1100 hPa |
| Input range | -7 dB to 8 dB ref nominal input level |
| Line inputs | 2 x |
| Line outputs | 4 x |
| Mic / line inputs | 2 x |
| Operating temperature | -5 to +55 oC (+23 oF to +131 oF) |
| CMRR | 55 dB at 100 Hz |
| Phantom supply | 12 V +-1 V @ 15 mA |
| Power consumption | 21 W with no load 160 W with maximum load |
| S/N | 89 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 brackets | 360 mm (14.2 in) |
| in front of brackets | 40 mm (1.6 in) |
| in rack, with brackets | 88 x 483 x 400 mm (3.5 x 19 x 15.7 in) |
| Control inputs | 8 x |
| Control outputs | 5 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 kHz | 0.05% |
| Frequency response | 20 Hz to 20 kHz (-3 dB) |
Additional Information:
Product Details:
| Model Number | PRS xPxxx and LBB 4428/00 |
| Type Of Product | Power amplifier |
| Power | 500 watt |
| Channel | 4, 2 |
| Brand | BOSCH |
| Color | Black gray |
| Weight | 16 |
| Dimension | 92 x 440 x 400 mm |
Additional Information:
Product Details:
| Color | Charcoal |
| Humidity | 15% to 90% |
| External power supply | 18 to 56 VDC |
| Dimensions (H x W x D) | 90 x 160 x 200 mm |
| Weight | 0.95 kg (2.1 lb) |
| Mounting | Tabletop |
| Length of mic stem | 380 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 pressure | 600 to 1100 hPa |
| Power consumption | 4.4 W (DC) excluding keypads |
| Nominal acoustic input level | 75 to 90 dB SPL |
| S/N | 60 dB at 85 dB SPL |
| Frequency response | 340 Hz to 14 kHz (-3 dB) |
| Loudspeaker S/N | 80 dB at max. output |
| Sound pressure level | 85 dB (SPL) at 0.5 m and 1 kHz |
| Headset Connector | 3.5 mm jack |
| Recommended type | Hosiden HBH 0058 |
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
Interconnections
Additional Information:
Product Details:
| Color | Charcoal |
| External power supply | 18 to 56 VDC |
| Power consumption | 2.9 W at 48 V without keypads |
| Nominal acoustic input level | 75 to 90 dB SPL |
| S/N | 80 dB at max. |
| Frequency response | 340 Hz to 14 kHz (-3 dB) |
| Sound pressure level | 85 dB (SPL) at 0.5 m and 1 kHz |
| Connector | 3.5 mm jack |
| Recommended type | Hosiden 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 neck | 380 mm (15 in) |
| Weight | 1 kg (2.2 lb) |
| Mounting | Standalone |
| Operating temperature | -5 degC to +45 degC (+23 degF to +113 degF) |
| Storage temperature | -20 degC to +70 degC (-4 degF to +158 degF) |
| Humidity | 15% to 90% |
| Air pressure | 600 to 1100 hPa |
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
Interconnections
Additional Information:
Product Details:
| Connectors | XLR and stereo cinch (for each line) |
| Voltage | 115/230 VAC +-10%, 50/60 Hz |
| Mounting | Standalone; 19" rack |
| Weight | 7 kg |
| Color | Charcoal grey with silver |
| Signal range | +18 dBV to -12 dBV (XLR) +6 dBV to -24 dBV (cinch) |
| Battery power supply Voltage | 48 VDC -10% to +20% |
| Frequency response | -3 dB @ 20 Hz / 20 kHz (+-1 dB) 0 dB @ 100 Hz / 1 kHz / 10 kHz (+-1 dB) |
| Line inputs | 2 x |
| S/N | 89 dBA at maximum level |
| CMRR | 55 dB at 100 Hz |
| Input range | -7 dB to 18 dB ref nominal input level |
| Connector | 3-pin XLR |
| Nominal Input Level | -57 dBV |
| Input Impedance | 1360 ohm |
| Phantom supply | 12 V +-1 V @ 15 mA |
| Distortion at 1 kHz | 0.05% |
| Line outputs | 4 x |
| Output Impedance | 100 ohm |
| Crosstalk | -85 dB |
| Power consumption | 14 W with no load 150 W with maximum load |
| Dimensions (H x W x D) | 88 x 483 x 400 mm (rack mounted) 92 x 440 x 400 mm (with feet) |
| Operating temperature | -5 degC to +55 degC |
| Storage temperature | -20 degC to +70 degC |
| Humidity | 15% to 90% |
| Mic / line inputs | 2 x |
| Air pressure | 600 to 1100 hPa |
Descriptions:
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.
Functions
Connectivity
The network controller has four analog audio inputs. Of these, two are selectable between microphone and line. The other two inputs are fixed as line inputs. The microphone/line inputs can be used as call inputs, if they are programmed conditionally to any of the eight control inputs, which are freely programmable for system actions, with freely programmable priorities. The controller has four analog audio line outputs each with a selectable 20 kHz monitoring signal. Three control outputs are programmable for faults or calls, and two others are used to connect visual and audible fault indicators.
Operation and performance
The network controller is completely configurable from a PC using the supplied software, which can also provide the current status of the running system, as well as comfortable and efficient configuration. The controller can also run without a connected PC, once it has been configured. The front panel has a 2 x 16-character LCD display and a rotary control to navigate through the menu and select the menu items. Address and version enquiry can be done using the display and control knob. The network controller can control up to 60 nodes. Nodes include equipment such as power amplifiers, audio expander units, call stations, call
station kits, etc. To meet the requirements for emergency sound
systems, automatic messaging is included in the network controller. The controller has a connector for installing a commercially available compact flash memory card, with a capacity matching the storage requirements for audio messages. Four messages can be played simultaneously. Message storage and of the messages themselves are monitored. Audio messages
(as a set of wav files) can be downloaded from a computer via the Ethernet link. The controller also stores seven attention tones, three test tones and 45 alarm tones, all accessible by any call stations or control inputs for announcement or alarm broadcast.
An internal real time clock lets the network controller automatically do things, such as playing scheduled announcements or changing the volume of background music during evening hours. It has extensive audio processing possibilities for the audio inputs and the audio outputs. Parametric equalization, limiter and gain can be easily adjusted using the configuration software. The digital audio processing has three
parametric and two shelving equalizer sections. There is a headset jack for monitoring the audio channels.
Additional Information:
Product Details:
| Color | Charcoal |
| Humidity | 15% to 90% |
| External power supply | 18 to 56 VDC |
| Weight | 0.7 kg (1.5 lb) |
| Mounting | Bracket (2 screws) |
| 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 pressure | 600 to 1100 hPa |
| Power consumption | 3.7 W |
| Control inputs | 2 x |
| Operation | Closing contact (with supervision) |
| Dimensions (H x W x D) | 27 x 243 x 80 mm without bracket (1.1 x 9.6 x 3.1 in) 34 x 243 x 84 mm with bracket (1.3 x 9.6 x 3.3 |
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Functions
The interface can connect a single LBB 4438/00 remote call
station or LBB 4439/00 remote call station kit to a Praesideo system with up to 1 km of CAT-5 cable. The interface is fully digital, supporting high-quality sound with a built-in DSP for audio processing of the remote call station. It supports complete supervision of itself, the call station, and the connection, as well as of two control inputs. It supports the fail safe mode of remote call stations, allowing them to put through emergency calls, even if the network controller fails. The unit is configured via the
network controller.
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Controls and indicators
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Interconnectors
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Additional Information: