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Summary of Contents for CTP Systems dBbox
- Page 1 manual...
- Page 2 The battery symbol on the top right of the display shows if you have enough battery power for the current function. A solid block is a full battery. The dBbox has an intelligent battery management system which switches off all electronics not in use for a particular test.
- Page 3 Apart from the different input connectors and impedances all functions of the XLR and BNC inputs are the same and so will be described together. If there is not a valid AES/EBU source plugged into the dBBox then ‘No valid AES input’ will flash on the screen.
- Page 4 Copyright Yes or No. Format Possible data types PCM, IEC61937, DTS_LD, DTS_CD. Main / Inputs / BNC or XLR / Analyse / Status word This displays the first five (and most important) bytes of the AES status word in binary format. Main / Inputs / BNC or XLR / Analyse / Errors Checks for the following errors: CRC Q Subcode...
- Page 5 Main / More / 4 wire box The dBbox will act as a four wire box using the internal microphone and speaker. Listen to incoming audio and adjust the volume using Vol Down and Vol Up.
- Page 6 Output Levels The dBbox ‘0dB’ output level is 0dBu, that is it generates 0.775 volts into a 10k ohm load, the most common input impedance these days. Into a 600 ohm load it will be approximately 0.3dB lower. Inevitably the dBbox will sometimes be plugged into a source with phantom power or something unpleasant on the line and the unit must be able to protect itself.
- Page 7 Technical Specifications Input level tolerence Analogue and AES/EBU 0dBu +-0.1dB -10dBu +-0.1dB -20dBu - 0.5dB -30dBu - 0.5dB -40dBu - 0.5dB -50dBu - 0.5dB -60dBu + 2dB Output level tolerence Analogue and AES/EBU +10dBu -0.4dB 0dBu +-0.01dB -10dBu +-0.1dB -20dBu + 0.6dB -30dBu - 2.5dB...
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