Bosch LBB 1968 Manual de usuario descargar pdf (Pagina 8)

Plena Range | 35

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Communication

Technical Specifications

Electrical

Mains Voltage 230 VAC / 115VAC, ±15%,

50 / 60 Hz

Max Mains Power Consumption 25 VA

Battery Voltage 24 VDC, +20%/-10%

Max Battery Current 1A

Max Mains Inrush Current 1.5 A @ 230 Vac / 3 A @ 115 VAC

Performance

Frequency Response 50 Hz – 20 kHZ (+1/-3dB)

Distortion <0.5%

Bass Control ±10 dB @ 100 Hz

Treble Control ±10 dB @ 10 kHz

Channel Separation >70 dB @ 1 kHz

Priority Mute >40 dB

Inputs

Mic in

Sensitivity 1 mV (microphone), 200 mV

(line)

Impedance >1 kOhm (mic.),

>5 kOhm (line)

S/N (flat at max volume) >63 dB (mic.), >70 dB (line)

S/N (flat at min volme/muted) >75 dB

CMRR >40 dB (50 Hz – 20 kHz)

Headroom >25 dB

Speech Filter -3 dB @ 315 Hz,

high-pass, 6 dB/oct

Phantom Power Supply 16 V via 1.2 kOhm, in mic. mode

only

3 Cinch inputs (unbalanced, stereo converted to mono)

Sensitivity 200 mV

Impedance 22 kOhm

S/N (flat at max volume) >70 dB

S/N

(flat at min volume/muted)

>75 dB

Headroom >25 dB

Outputs

Master Out (3-pin XLR, balanced)

Nominal Level 1 V

Impedance <100 ohm

Music Output (3-pin XLR, balanced)

Nominal Level 1 V

Impedance <100 ohm

Tape Output (Cinch, 2 x mono)

Nominal Level 350 mV

Impedance <1 kOhm

Headphone output (6.3mm jack stereo, signal mono)

Nominal Level 3 V

Impedance <100 ohm

Zone Relays 250 V / 5 A

Interconnection

Interconnection/emergency input (3-pin XLR, balanced)

Sensitivity 200 mV (interconnection),

100 mV – 1 V adjustable

(emergency)

Impedance >10 kOhm

VOX Threshold 45 mV emergency

Interconnection output (3-pin XLR, balanced)

Nominal Level 200 mV

Impedance <100 ohm

Relays

Priority Relay Contacts 30 V, 1 A

Emergency Relay Contacts 30 V, 1 A

DC Supply Output Voltage 24 V, 250 mA max

Environmental

Operating Temperature -10°C to +55ºC

Storage Temperature -40°C to +70ºC

Relative Humidity <95%

Dimensions 100 x 430 x 270 mm

(19" wide, 2U high)

Weight approx. 5 kg

19" Mounting Brackets included

Ordering Information

Model & Description

LBB 1925/10 Plena System Pre-Amplifier

1 2 3 4 5 6 7 8 9 10 11 12 13 ... 25 26

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Bosch LBB 1968 Manual de usuario Pagina 8

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