Description
PSC PRESS DISTRIBUTION AMPLIFIERS
For audio distribution at sporting events, press-conferences and any event, with AC power available or not, where multiple isolated feeds are required to feed the assembled media. Two models are offered; one active, offering mixing facilities, and one passive. Distributed systems can be built with up to 132 outlets fed from a single Press Bridge unit.
Press Bridge
Housed in a heavy-duty aluminum case and finished in black powder coat for durability, the Press Bridge has a convenient carrying handle to one side. The front panel has two microphone-level and one line-level XLR inputs. Each has a gain control. Twelve male XLR connectors provide transformer-isolated audio feeds at microphone level. A VU meter and variable-level generator provide level monitoring and reference tone for line up. The power switch has an LED to indicate power status. Three, parallel-wired, XLR male, line-level outputs are mounted on the side, for the addition of external Press-Train units. Up to ten Press Trains can be driven from one Press Bridge for an additional 120 outputs (132 outputs total including the Press Bridge). Alternatively, by connecting additional Press Bridge units to these outlets, much larger systems may be deployed.
The unit can be powered for more than 12 hours from two alkaline, PP3 9 volt batteries, or may be powered from an external supply. The power inlet is a 2.1mm coaxial DC connector, positive pin, mounted on the side.
Input level: -60dBu microphone, +4dBu line. Output level: -40dBu, microphone. Level drop due to shorted circuited outputs: 0.2dB with one shorted output, 1dB with five shorted outputs. Power source: Two internal PP3 batteries or external supply, 9-18V DC, 100mA. The supply is regulated and filtered internally. Dimensions: 300 x 120 x 100 (l x h x d) mm. Weight: 2kg.
Included accessories: Manual.
Optional accessories: Satellite ‘Press Train’ output modules to provide additional capacity and reduce the number of long cables to the various areas of a large event. Plug-top power supplies 23-972 and 23-832 offer 9-12V DC, 300mA, and have UK and Euro connectors respectively.
Press Train
For use as a stand-alone splitter or in conjunction with the Press Bridge, this passive device has twelve, balanced, transformer-isolated XLR outputs on the front panel, each with an isolated ground connection, along with a convenient VU meter. The input, on the side is a female XLR, transformer-balanced, accepting a +4dBm input from a mixer or other line-level output. This will result in a -40dBu output on each of the outlets. There are also two male XLR loop-through connections for ease of configuring systems.
Since the input impedance is high, up to ten of these devices can be connected to a mixer or other line output, 600ohms source impedance or less, without ‘excessive loading or distortion’, resulting in up to 120 outputs from a single source. The total capability of one Press bridge and 10 Press Trains would be 132 outlets. Alternatively, Press Trains can be placed carefully to serve a group of users, optimising cable-run lengths, so that fewer long runs are required. Press Trains may be placed up to 150 metres from the Press Bridge, using standard microphone cables.
Input: +4dBm nominal, 12k ohms. Output: -40dBu, 150 ohms. Power: None. Dimensions: 270 x 90 x 80 (l x h x d) mm.
Included accessories: Manual.