Audio Production Equipment : Amplifiers (Audio) : Bosch Conferencing and Public Address Systems - LBB4428/00

bosch-conferencing-public-address-systems

8 x 60W Power Amplifier

Model: LBB4428/00

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
Eight control inputs

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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.

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
Eight control inputs
Supervision of line attached to control inputs
Automatic volume control
Four audio inputs
Redundant network connection

Amplifier Type - Power Amplifier
Warranty - Yes
Rackmountable - Yes
Spec Sheet available - Yes

Colour: Charcoal with silver
Operating Temperature (Maximum): 55 C
Operating Temperature (Minimum): -10 C
Maximum Frequency Response (Bandwidth): 19 kHz
Maximum Frequency Response (Bandwidth): 19000 Hz
Minimum Frequency Response (Bandwidth): 60 Hz
Minimum Frequency Response (Bandwidth): 0.06 kHz
Certifications: CE, TUV
Impedance: 160 ohm
Number of Channels: 8
Number of Inputs: 4
Number of Outputs: 8
Number of Watts Per Channel: 60 Watt
Power Handling: 60 Watt
Rackmountable: Yes
Signal to Noise Ratio: 85 dB
AC Voltage (Maximum): 240 Volts
AC Voltage (Minimum): 100 Volts
DC Voltage: 48 Volts
Depth: 398.78 mm
Height: 91.44 mm
Width: 439.42 mm
Product Weight: 14.50 kg
Regulatory Compliance: IEC 60065-98, EN 55103-2, EN 55103-1 / FCC-47 part 15B, IEC 60849 / BS 5839-8
Warranty (Length/Type): 3 Years
Mic/Line Inputs: 4 x
CMRR: >40 dB @ 1 kHz
Relative Humidity: 15 to 90 %
Air Pressure: 600 to 1100 hPa

Bosch Conferencing and Public Address Systems - LBB 4428-00 1207 kb - Data Sheet

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