Bosch 1000W Power Amplifier for large PA systems, in a 3U high 19" case for rack mounting or desktop use. LEDs on the front panel show the status of the amplifier: power, audio output level, and supervised functions. Supported by Bosch's 3 year factory warranty, this high-performance unit fulfils a wide range of public address requirements at a surprisingly low cost.
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The amplifier is protected against overload and short circuits. A temperature-controlled fan ensures high reliability at high output levels, and low acoustic noise at lower output levels. An overheat protection circuit switches off the power stage and activates an LED on the front panel, if the internal temperature reaches a critical limit due to poor ventilation or overload.
The unit operates both on mains power and on a 24 V battery power supply for emergency back up, with automatic switchover.
For emergency and evacuation use, the following functions are monitored: mains presence, battery present, pilot tone presence, amplifier operation. Front panel LEDs indicate the status of supervised functions. The of pilot tone supervision and battery status LEDs can be switched off for general public address use. Failsafe (normally energized) relays are provided for each supervised function. These relays are always active regardless of the switches on the rear panel.
The system has two balanced inputs with priority control, each with a loop-through facility. This makes it easy to connect remote systems that require priority control. An additional 100 V line input can connect the amplifier to a 100 V loudspeaker line, to provide more power to remote locations.
The amplifier has 70 V and 100 V outputs for constant voltage loudspeaker systems, and a low impedance output for 8 ohm loudspeaker loads. A meter with LED-bar shows the output level.
The PLN-1P1000 has two separate priority controlled 100 V outputs for zones that only need announcements made via the priority input, and for zones that will not get any announcements made via the priority input.
|Operating temperature||-10°C to +55°C|
|Max Power||2200 W|
|Line loop-through output||2|
|Frequency Response||50 Hz to 20 kHz (+1/-3 dB @ -10 dB ref. rated output)|
|Output Power (rms/maximum)||1000 W / 1500 W|
|Power Consumption||2200 VA|
|Inrush Current||16 A|
|Voltage||230 VAC ±10%, 50/60 Hz|
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