Scotty BlueBox, Equipment Manual

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SCOTTY BlueBox Equipment Manual
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7.4 Audio Interfaces
Four analog audio inputs are available, featuring a very wide input level range
to directly support microphones, line and intercom signal levels:

One 12V balanced microphone input
Phantom power 12V over 680Ohm
Input range -63,5dBV … +2,3dBV (1.3Vrms)

One electret microphone input
Phantom power 3.3V over 2.2kOhm
Input range -63,5dBV … +2,3dBV (1.3Vrms)
Typically used as headset microphone

Two line inputs
Input resistance >8kOhm, symmetrical, AC coupled
Differential input, suitable for balanced and unbalanced signals
Input range (line, aux) -22dBV … +2,3dBV (1.3Vrms)
Input range (microphone) -63,5dBV … +2,3dBV (1.3Vrms)
Configurable as one mono or one stereo codec input
Configurable to connect an acoustic source (line mode), a playback
device (aux mode) or a microphone without phantom power (mic
mode)
Four analog audio outputs offer a flexible signal level configuration e.g. to
directly connect to audio systems or headsets.

Two speaker outputs
Output range -51,5dBV …. 11.2dBV (3.6Vrms), output resistance
10Ohm
Configurable as one mono or one stereo codec output