Справочник Пользователя для Alphasonik PMA640HCE

This LCD indicates the range from 10 volts 

to 15 volts.

The LCD shows "LO" for 10 voltsbelow and 

"HI" for 15.5 volts over.

HOUR METER - The hour meter is designed to provide the user with actual toal 

running time for the unit.  Each number represents one hour of operation.  (Fig 2)

   

9. Variable Low-Pass filter (50Hz – 250Hz): For use as a dedicated subwoofer 

channel, set filter switch to “LPF”. Adjust variable crossover frequency with 

control as desired. The amplifier input circuit filters out everything above 50Hz…

..250Hz (dependent on the adjustment of the frequency control), so only the 

deepest bass notes are amplified.       

10. Variable High-Pass Filter (50Hz – 250Hz): For use as a dedicated mid high 

range channel, set filter switch to “HPF”. The input out all frequencies below 

50Hz…..250Hz.

       

11. Variable Subsonic Filter (20Hz ~ 60Hz)       

12. Phase Shift Switch (0 And 180 Degrees): allows you to change the phase of 

your subwoofer from 0 to 180 degrees to help compensate for timing difference 

between drivers 

      

13. Low level Input RCA Jacks: These inputs are for signal cables from the 

source unit, always use high shielded RCA cables.

       

14. Line Out: The Line Out allows you to build multiple amplifier systems without 

having to use splitter cords to distribute the signal. Now it is a matter of bringing 

one set of RCA’S into the first amplifier, then using the LINE OUT RCA jacks as 

the feed to the next amplifier.

       

15. Remote Digital Voltmeter- Fig. 1

16.  (Optional)  Bass Boost Knob:  The remote bass boost knob works in con-

junction with the amplifiers bass knob.