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Reckhorn A-409 Mode D'emploi page 5

Amplificateur de subwoofer avec filtre paramétrique et égalisation de salle

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16. BOOST FREQUENCY: sets the BOOST frequency at 7=15Hz, 8=18Hz, 9=20Hz, 10=30Hz,11=35Hz,
12=40Hz, 1=45Hz,2=47Hz, 3=50Hz, 4=53Hz, 5=55Hz
17. EQUALIZER LEVEL: reduces the level at the frequency set by EQUALIZER, FREQUENCY at 7 = 0dB,
8 =1.2 dB, 9 =2.4 dB, 10 = 3.6 dB, 11 = 4 dB, 12 =5 dB, 1=6 dB, 2 =6.3 dB, 3 = 6.5 dB, 4 = 7 dB, 5 = 7.5 dB
18. EQUALIZER FREQUENCY: adjusts the narrow bandwith decrease at 7=17 Hz, 8=25Hz, 9=35Hz, 10=40Hz,
11=50Hz, 12=60Hz, 1=65Hz, 2=70Hz, 3=75Hz, 4=80Hz, 5=85Hz
19. SUBSONIC: filters unwanted lowest frequencies below 7=10Hz, 8=13Hz, 9=16Hz, 10=22Hz, 11=26Hz,
12=30Hz, 1=34Hz, 2=39Hz, 3=43Hz, 4=47Hz, 5=50Hz
20. PHASE: adjusts the subwoofer to the same acoustic phase as the main loudspeakers. In relation to the
listening position, the best interaction with the main loudspeakers is set by trial and error. To do this, set
HIGH CUT to 17:00 = far right at medium volume and turn PHASE until it is at its loudest. Then set HIGH
CUT back to the desired low pass frequency.
21. SAT OUT: limits the lowest frequency of the satellite speakers at 7=30Hz, 8=36Hz, 9=60Hz, 10=97Hz
Z11=126Hz, 12=150Hz, 1=200Hz, 2=280Hz, 3=310Hz, 4=357Hz, 5=400Hz.
The following graphs show frequency curves at these knob settings:
7 o'clock
HIGH CUT
SUBSONIC
-3-
12 o'clock
17 o'clock

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