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9. kg/Piece(s) |
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1 Piece(s) |
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| PPB 20
A Press Patch Box is a special kind of audio signal distributor intended for use at press conferences. It has separate inputs for microphone and line signals (from a mixing console output). A high quality input amplifier with a balanced floating input provides a wide dynamic range. A total of 20 transformer-balanced XLR/m sockets with separate paired driver circuits make it possible to connect up video cameras and other recording equipment. The nominal output level is +4 dBu at 600 W. Channels 19 and 20 have TRS jack sockets for balanced/unbalanced signals and also cinch sockets (-10 dBu nominal level). Where more than 20 outputs are required, additional PPB 20s can be series-connected via a rear BUS IN/OUT socket. Signal monitoring is provided by a 10 LED strip displaying a range of -40 to +10 dB (0 dB in the display = 4dBu output) and an adjustable headphones amplifier. The PPB20 has an integral, shielded power supply pack. A extra DC input makes it possible to connect up a (backup) battery power source. A PW4 can provide the necessary backup power supply for two PPB20s.
Specifications PPB 20
Inputs: Transformer-balanced, 4 XLR/f sockets, with paired front/rear parallel connections for separate microphone/line signals.
Nominal input impedances: Microphones = 200 W, Line = 5 kW
Max. input levels: microphones = 0 dBu, Line = +20 dBu
Max. amplification: microphones = +66 dB, Line = +22dB (constantly adjustable via switch and potentiometer).
Outputs: 20 XLR/m, 2x TRS jack, 2x cinch, all transformer-balanced and floating with separate ground lift switches at rear.
Nominal output impedances: XLR = 300 W, jack and cinch = 600 W.
Nominal output levels: XLR = +4 dBu/20 dBu max.; jack/cinch = -10 dBu, + 6 dBu max.
Headphones output: Stereo jack socket, with mono tip + ring
Designed for use with 8 W - 200 W headphones (constantly adjustable level).
10 LED strips displaying a range of -40 to +10 dB.
Bus input/output (mono jack)
Power supply: 230 V AC or ± 12 V to ±18 V DC, 15 Watts.
Housing: 19", 3 height units, approx. 200 mm deep. |
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