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Brief Information
PowerPoint demo: Audio ConsolesMB 2400
Technical Specifications MB 2400A-Stereo
Mixer Section |
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| Inputs |
6
channel, 9 inputs; |
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Phantom Power |
Optional 48 V phantom in all microphones with internal switching supply | |
| Input
level |
Balanced
Microphone: -22 to -75 dBu, MIC 1,2,3 & 4 MIC 5 (stereo center) ; -22 to -65 dBu Balanced Line: -20 to + 20 dBu Stereo Line; -10 to + 20 dBu |
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| Audio
output |
Mono
balanced audio output + 4 dBm / 600 ohms / XLR out Stereo, unbalanced -10 dBu to 0 dBu / 10 Kohms / 1/4" jack Digital Stereo stream, coded MP3, see below CODEC / RJ45 |
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| Hybrid
Outputs |
2
outputs with internal Hybrid. One for land phone line (POT) and one for cellular phone Return to Studio output level: - 2 dBu over 2 Km artificial line |
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| Bluetooth
link out |
Microwave digital link, Bluetooth, to connect a second cellular phone wireless up to 15 meters. This avoids problems associated to wired connections | |
| Stereo
Headset Mixer |
6
stereo outputs for headsets; Z= 8 to 600
ohms 4 channel mixer and Distribution Amplifier included. It can work stereo or mono mode. Inputs are: Stereo Mixer Out, Studio return (Hybrid,Cellular or Tuner), Bluetooth and Digital stream |
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| Frequency
Response |
MIC
to mono out: 20 - 20.000 Hz +/- 0,5 dB |
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| THD
Distortion |
MIC
to mono out: less than 0,1 % |
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| Noise |
MIC to mono out: Signal/noise > 60 dBA at -40 dBu
MIC input Stereo Line to Stereo Out: Dynamic range > 85 dBA Stereo Line to Digital stream Dynamic range > 75 dBA |
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| Stereo
Crosstalk |
Better than 65 dB at 1 KHz | |
| Audio
Compressor |
Audio
compressor for level control at the mono output and cellular phone.
High audio quality stereo output is uncompressed |
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| Electronic
Technology |
Advanced rail to rail amplifiers with very low power consumption , for long battery duration. Modular easily changed sub-set for Bluetooth, 48V phantom, Digital stream and potentiometers. One million operation potentiometers for full life duration. | |
| Cellular
connection |
Cellular # 1wireless Bluetooth linked up to 15 meters Cellular # 2 (backup unit) wired to RJ11 connector |
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Additional
Features |
Battery
charge meter Internal talkback MIC Internal DTMF dialer Audio generator at + 4 dBu reference level, 1.000 Hz +/- 10 % |
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| Battery
charger |
The
console includes a multivoltage 90 V to 240 V switching battery charger During charge the console can work On Air Full charge overnigth, 10 to 12 hours |
|
| Battery
duration |
Analog
mixer use with Bluetooth: more than 20 hours Digital stereo or mono Internet streaming: 8 hours Professional grade Nikel-Metal battery, 1.000 charges guaranteed |
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| Dimensions
and Weight |
Dimensions:
70 mm x 200 mm (wide) and 265 mm depth Weight: 1,8 Kg with battery |
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B-Codec streaming section |
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Streaming
connection
|
Standard
RJ45 Ethernet connection TCP/IP
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Standards
supported
|
•
MP3 Layer 1 (32, 44.1 and 48 kHz)
• MP3 Layer 2 (16, 22.05 and 24 kHz) • G.711 (µLaw / aLaw 8 and 24 kHz sampling rate) • 16bit PCM uncompressed (8 and 24 kHz) |
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Protocols
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Studio link
|
Using
a streaming host (Solidyne provides one temporal to test the MB 2400),
the Journalist only needs to connect the codec to Internet to start the
digital transmission
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Latency
(time delay)
|
MB2400
has a latency of only 50 mS The full loop including Internet and receiver software in a direct conection is between 0,5 sec to 1,5 sec Using an iceCast host streaming server this value usually raise to 1 - 2 sec |
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Voice
IP identification
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When
MB2400 is connected to a LAN network for codec programming, a voice response
in English can be heard at headphones in order to get the IP address of
LAN
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