เครื่องเสียง BOSCH เครื่องขยายเสียง, เครื่องขยายเสียง 240วัตต์ เครื่องขยายเสียง, 240 W Plena Mixer Amplifiers 70 V / 100 V and 8 ohm outputs. เพาเวอร์มิกเชอร์ BOSCH LBB 1935/20

The Bosch LBB 1935/20 is a powerful 240 Watt power amplifier in a 2U high 19” case for rack mounting or tabletop use.

LEDs on the front panel of the LBB1935/20 show the status of the amplifier: power, audio output level, and supervised functions. This high-performance unit fulfills a wide range of public address requirements at a surprisingly low cost.

• 240 watts
• EN 54‑16 certified and EN 60849 compliant
• Dual inputs with priority switching
• Very high audio performance power amps
• Can be used to boost Plena Voice alarm systems with system monitoring
• XLR and jack input with XLR and Jack loop through outputs
• 100 volt line input. Ideal for remote location booster amps
• 100v, 70v and 8 ohm outputs
• Temperature controlled forced front to back ventilation
• AC and 24VDC operation
• LED VU Meter

Specs.

Mains power supply
Voltage: 230 VAC, ±10%, 50/60 Hz
Inrush current: 9 A
Max power consumption: 760 VA
Battery power supply
Voltage: 24 VDC, -10% to +20%
Current max: 11 A
Performance
Output power (rms/maximum): 240 / 360 W
Power reduction on backup power: -1 dB

Mains power supply
Frequency response: 50 Hz to 20 kHz (+1 / ‑3 dB at ‑10 dB ref. rated output)
Distortion: <1% at rated output power, 1 kHz
S/N (flat at max volume:) >90 dB
Line inputs: 2 x
Connector: 3-pin XLR, balanced
Sensitivity: 1 V
Impedance: 20 kohm
CMRR: >25 dB (50 Hz to 20 kHz)
Gain: 40 dB
100 V input
Connector: Screw, unbalanced
Sensitivity: 100 V
Impedance: 330 kohm
Line loop-through output: 2 x
Connector: 3-pin XLR
Nominal leve:l 1 V
Impedance: Direct connection to line input
Loudspeaker outputs: 3 x
Connector: Screw, floating
Direct output: 100 V, 70 V, 8 ohm
Priority only (from input 1): 100 V or 70 V internally selectable
Music (non-priority) only: 100 V or 70 V internally selectable

Mechanical
Dimensions (H x W x D): 100 x 430 x 370 mm / (19" wide, 2U high, with feet)
Weight Approx:. 12.5 kg
Mounting: Standalone, 19”rack
Color: Charcoal