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FUNDAMENTAL ACOUSTIC RESEARCH

 

OWNERS MANUAL AV 20(C) 

10

 

Limiter function 

The AV-20(C) has a built in limiter developed to protect 
the drivers against harmful signals. The limiter acts 
directly on the input signal by decreasing it when it 
reaches the clipping level.  
To activate the limiter turn it to the on or off position using 
the dip switch on the rear panel.  
 

 

 

Figure 3: 

limiter switch 

The overload LED indicates whether or not the limiter is in 
operation. 
LED comes : 

• 

Red when the limiter is not in use. 

• 

Orange when the limiter is in use. 

 

Rear panel level. 

 
Adjust the sound level by turning the main level knob to 
the desired position. 
The range of tuning is from 0 (maximum attenuation) to 
max (no attenuation). 
 
Adjust the knob (Figure4) to the necessary to attain a 
perfect stereo image. 
 
 

 

 

Figure 4 

: main level control 

 
 

Содержание AV-20

Страница 1: ...FUNDAMENTAL ACOUSTIC RESEARCH OWNER S MANUAL ACTIVE MONITOR AV 20 C...

Страница 2: ...this owner s manual and use your speaker only in accordance with its instruction CONTENTS Applications 2 Installation 3 Technical description 4 Technical drawing 7 8 Fine frequency tuning 9 Limiter f...

Страница 3: ...cord immediately and consult an authorized FAR dealer Using the unit under such condition may cause a fire or shock hazard Installation Mains Attach the plug to the IEC socket And connect it to the m...

Страница 4: ...Frequency Range Hz 3 dB 35 22000 Active filter Low pass section Crossover frequency 250 Hz 24 dB Octave Control 1dB flat 1dB 2dB Mid pass section Crossover frequency 300 3000 Hz 24 dB Octave High pas...

Страница 5: ...oofer 25cm 10 inch Medium 13cm 5inch Tweeter soft dome 1 inch Listening position cm 100 250 Amplifier Specifications Power PEAK W Tweeter Power 100 Medium Power 150 Woofer Power 220 Power NOMINAL W Tw...

Страница 6: ...Power bandwidth 20 25000 Hz Slew rate 35 V s SN ratio 100 dB Distortion Intermodulation 0 01 Total 0 05 Input Sensitivity 0 dB Impedance 10 kOhm Connectors Input symmetric XLR Jack Link XLR Remote RJ...

Страница 7: ...FUNDAMENTAL ACOUSTIC RESEARCH OWNERS MANUAL AV 20 C 7 TECHNICAL DRAWING...

Страница 8: ...Hz dB 0 200 500 5 8k 3 Hz dB TV CURVE TV MAINS FOR CONTINUED PROTECTION AGAINST RISK OF FIRE REPLACE ONLY WITH THE SAME TYPE OF FUSE CAUTION REMOTE LINK Hz LOW PASS FILTER 0 dB Hz HIGH PASS FILTER dB...

Страница 9: ...es Figure 2 High pass section settings The dipswitch can be set to one of the six dB level positions for an optimum high frequencies setting Positions available 3 2 1 flat 1 2 dB Figure 1 high frequen...

Страница 10: ...on or off position using the dip switch on the rear panel Figure 3 limiter switch The overload LED indicates whether or not the limiter is in operation LED comes Red when the limiter is not in use Or...

Страница 11: ...ne That the remote control is not on mute position or 80 dB position Sound is heard stronger from one side That the remote control is not on one side only That both level controls on the rear are corr...

Страница 12: ...identical to those perceived by the final users PRESET CURVES ACADEMY ACADEMY CURVE 0 10k 3 Hz dB 0 200 500 5 8k 3 Hz dB TV CURVE TV REMOTE LINK Figure 5 preset curves For the sound engineer this soun...

Страница 13: ...mall bad speaker in addition as you generally can see on the consoles The sound colour will obviously be the same as you use the same speaker for both curves The only one position will ensure you to h...

Страница 14: ...d of the curve you are working with Each led will light green Use the flat switch to work in flat frequency curve The led will light green Use the mute switch and the sound will be muted You can conne...

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