ราคาพิเศษ สอบถามโทร 080-6144774 , 02-9810944
BOSCH LBB 1930/20 เพาเวอร์แอมป์ โวลท์ไลน์ เครื่องขยาย เสียง ระบบประกาศสาธารณะ กำลังขับสูง 120 W
Plena Power Amplifier
120 W power amplifier in a compact housing
70 V / 100 V and 8 ohm outputs
Dual inputs with priority switching
100 V input for slave operation on 100 V speaker line
Temperature controlled forced front to back ventilation, directly stackable.
Mains, battery back-up and pilot tone supervision
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Mains power supply
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Voltage
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230 VAC ±10%, 50/60 Hz
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Inrush current
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8 A
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Max power consumption
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400 VA
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Battery power supply
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Voltage
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24 VDC +15% / -15%
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Current max
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6 A
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Performance
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Output power (rms/maximum)
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120 / 180 W
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Power reduction on backup power
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-1 dB
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Frequency response
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50 Hz to 20 kHz (+1 / -3 dB at -10 dB ref. rated output)
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Distortion
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<1% at rated output power, 1 kHz
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S/N (flat at max volume)
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>90 dB
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Line inputs
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2 x
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Connector
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3-pin XLR, balanced
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Sensitivity
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1 V
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Impedance
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20 kohm
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CMRR
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>25 dB (50 Hz to 20 kHz)
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Gain
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40 dB
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100 V input
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Connector
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Screw, unbalanced
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Sensitivity
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100 V
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Impedance
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330 kohm
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Line loop-through output
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2 x
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Connector
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3-pin XLR
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Nominal level
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1 V
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Impedance
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Direct connection to line input
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Loudspeaker outputs
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3 x
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Connector
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Screw, floating
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Direct output
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100 V, 70 V, 8 ohm
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Priority only (from input 1)
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100 V or 70 V internally selectable
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Music (non-priority) only
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100 V or 70 V internally selectable
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Mains operation
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Max power
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274 W
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-3dB
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193 W
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-6dB
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143 W
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Pilot tone*
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41 W
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Idle
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18 W
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24 VDC operation
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Max power
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7.0 A (168 W)
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-3 dB
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6.0 A (144 W)
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-6 dB
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4.3 A (103 W)
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Pilot tone*
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0.9 A (22 W )
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Idle
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0.1 A (2.4 W)
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Dimensions (H x W x D)
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100 x 430 x 270 mm(19" wide, 2U high, with feet)
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Weight
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Approx. 10.5 kg
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Mounting
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Standalone, 19”rack
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Color
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Charcoal
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Operating temperature
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-10 ºC to +55 ºC (14 ºF to +131 ºF)
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Storage temperature
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-40 ºC to +70 ºC (-40 ºF to +158 ºF)
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Relative humidity
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<95%
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Acoustic noise level of fan
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<48 dB SPL at 1 m (max output)
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