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5.2 Front panel
1. POWER ON/OFF
Press this button, to turn on the HPA-6.
2. POWER LED
The power indicator lights up when the HPA-6 is powered on.
3. STEREO IN
Main input via 6.3 mm jack on the front panel; connected in parallel with the MAIN IN jacks on the rear panel.
4. PAN CONTROL
In mono mode, this control positions the signal of a mono input in the stereo output. The signal level remains
constant. In stereo mode, this control adjusts the balance left/right of the stereo input signal.
5. OPERATING MODE MONO/STEREO
Selector switch for the main input STERO IN/MAIN IN-
button not pressed: mono operation
button pressed: stereo operation
6. LEVEL CONTROL
Volume control LEVEL for the headphone output OUT.
7. OUT
6.3 mm jack for headphones.
5.3 Rear panel
8. DIRECT IN
Separate input for each channel (6.3 mm jack).
9. AUX IN
6.3 mm mono jacks for connecting second main input source. This signal is mixed to the master source.
10. MAIN IN
Main input (6.3 mm mono jacks); connected in parallel with the STEREO IN jack on the front panel.
11. AC-CONNECTION with FUSEHOLDER
Used to plug the power cord in. Only replace the fuse when the device is disconnected from mains. Only use
fuses of the same rating and power. The correct fuse value is specified on the rear panel.
6. INSTALLATION
6.1 Rack-installation
This device is built for 19" racks (483 mm). The rack you use should be a Double-Door-Rack where you can
open the front panel and the rear panel. The rack should be provided with a cooling fan. When mounting the
device into the rack, please make sure that there is enough space around the device so that the heated air
can be passed on. Steady overheating will damage your device. You can fix the device with four screws M6
in the rack. If several devices are to be installed, make sure that you leave 1 unit space between the devices.
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00030129.DOC, Version 1.0
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