HeadsetUSA PAS 400 manual Operation

2 Operation

Note!

To prevent audible clicks or thumps, turn the VOLUME control (11) or (14) for INPUT 1 or

2 all the way down before:

yconnecting or disconnecting microphones or signal sources

ychanging the input level sensitivity with the selector switch (10) or (13).

2.1 Dynamic Microphones - Distant-Miking Set-up

If the distance from the person speaking into the mic is 8 to 20 inches (e.g. when speaking at a conference table, or making a speech from a podium), turn down VOLUME 2, connect the mic to INPUT 2 and select the MIC (-65 dBu) sensitivity. Then adjust VOLUME 2 to the desired level.

2.2 Dynamic Microphones - Close-Miking Set-up

If the mic will be used at close distances, i.e., less than 4 inches (e.g. singing, speaking close to the mic because of high background noise), turn down VOLUME 1, connect the mic to INPUT 1 and select the MIC (-45 dBu) sensitivity. Then adjust VOLUME 1 to the desired level.

Note!

INPUT 1 has phantom power (in the MIC and AUX positions) for powering condenser mics.

2.3 Electret-Condenser Microphones - Distant-Miking Set-up

If the distance from the person speaking into the mic is 8 to 20 inches (e.g. when speaking at a conference table, or making a speech from a podium), turn down VOLUME 1, connect the mic to INPUT 1 and select the MIC (-45 dBu) sensitivity. Then adjust VOLUME 1 to the desired level.

2.4 Electret-Condenser Microphones - Close-Miking Set-up

If the mic will be used at close distances, i.e., less than 4 inches (e.g. singing, speaking close to the mic because of high background noise), turn down the VOLUME (1 or 2), connect the mic to the INPUT (1 or 2) and select the AUX (-25 dBu) sensitivity. Then adjust the VOLUME (1 or 2) to the desired level.

2.5 Mixing Console or Line-Level Inputs

Line level inputs can be connected to INPUT 1 (electrically balanced with 0 dBu sensitivity) or INPUT 2 (transformer balanced with +6 dBu sensitivity). These inputs have the same audio quality, but INPUT 2 may be more immune to hum or noise because it is transformer balanced and completely isolated form the mains ground.

2.6 Recording from the PAS 400

An analog recorder (e.g. Mini Disc, cassette, etc.) can be connected to the REC OUT outputs and a 2-channel mono recording of all inputs connected to the PAS 400 can be made. If the outputs of the recorder are also connected to INPUT 3 (e.g. for playback), then turn down VOLUME 3 before making any connections. Turn the volume level up slowly to prevent feedback (many recorders produce an output signal, for monitoring, while they are recording

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