- Background noise
The use of active circuitry can yield, depending on the configuration, with a more or less
high background noise level. The Philos 12A unit has been designed in order to obtain the lowest
background noise. Independently from the electronic conception it was designed with, the
background noise level will depend directly on the correct unit use and installation.
- Cleaning
The front panel should not be cleaned with dissolvent or abrasive substances because
silk-printing could be damaged. To clean it, use a soft cloth slightly wet with water and neutral liquid
soap; dry it with a clean cloth. Be careful that water never gets into the amplifier through the holes of
the front panel.
8. FUNCTION DIAGRAM
1. Mid control, MID
2. Bas control, BASS
3. Input attenuator, VOLUME
4. Signal present indicator, SIGNAL
5. Input, MICRO/LINE
6. Input selector
7. On switch, O/I
8. Voltage change, VOLTAGE SELECTOR
9. Treble control, TREBLE
10. Visual indication for power, POWER ON
11. Clip indicator, CLIP
12. XLR output connector to other amplifiers,
STACK OUT
13. Fuse holder
14. Mains socket
8