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6.3 How to adjust distorting frequencies in the system
After you adjusted the system with one of the possibilities mentioned above with the equalizer, you can find
possibilities how to adjust the the howls that inevitably occur when using the system. This possibility can be
used for monitor-speakers and for the main speakers.
Use a Mono- or Aux- or Loop-out and transmit the signal through the AN-31 to the speaker-systems.
Adjust the Gain-control of the AN-31 so that the "+" LEDs react to the extreme levels only.
Watch the display until a feedback occurs. The last frequency band to decay is where the feedback occurs.
Adjust this frequency with your equalizer.
We wish you a lot of fun with your analyzer.
7. CLEANING AND MAINTENANCE
Clean the device in regular intervals.
There are no servicable parts inside the device. Therefore, never open the housing.
Maintenance and service operations are only to be carried out by authorized dealers.
8. TECHNICAL SPECIFICATIONS OMNITRONIC AN-31:
Power supply:
230 V/50 Hz
110 V/60 Hz
Power consumption:
20 W
Number of frequency bands:
31
Frequenzgang:
20 - 20 000 Hz
Frequencies (in Hz):
20, 25, 31.5, 40, 50, 63, 80, 100, 125,
160, 200, 250, 315, 400, 500, 630, 800,
1K, 1.25K, 1.6K, 2K, 2.5K, 3.15K, 4K,
5K, 6.3K, 8K, 10K, 12.5K 16K, 20K
LED-points per frequency-band:
12
Level range:
-38 dB - +10 dB
Microphone connection:
via 1/4" mono-jack
Pink Noise output:
via 1 RCA-socket
Signal input:
via 2 RCA-sockets
Dimensions:
283 x 170 x 88 mm
Weight:
3 kg
Please note: All specifications are subject to change withour prior notice.
Errors and omissions excepted.
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