© Pro-Ject Audio Systems · Pro-Ject Head Box S USB · Revision 2015.4.2
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Front panel controls
Head Box S USB
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Please turn the volume level to minimum before connecting the headphone.
Minimum impedance of the head phone 30ohms.
To switch on from standby or to standby
The push button on the left hand side will toggle the unit between its fully operational status and standby. The
blue LED above the stand-by push button shows that the unit is switched on.
Input selector
Pressing the grey button next to the two LEDs repeatedly selects the inputs in turns. The selected input will be
shown by the corresponding LED on the Head Box S USB.
Important notice
Connecting a headphone, volume control
Connect the headphones to the ¼“ (6,3mm
) jack socket on the front of the headphone amplifier. Use the
control knob to adjust the level to the required volume.
Headphone replay
Use the input selector of the amplifier or the headphone amplifier to choose the source you wish to hear.
Potential incorrect use and fault conditions
No signal on one or both channels:
No connection between headphone and headphone amplifier ore amplifier. This could be due
to a faulty plug, broken wire or solder joint or simply loose plug/socket connection.
Headphone does not work:
Headphone volume control is at minimum.
Amplifier Tape-Monitor circuit is not activated.
