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FUNDAMENTAL ACOUSTIC RESEARCH

 

OWNERS MANUAL AV 20(C) 

9

Fine frequency tuning 

For fine frequency tuning use the dip switches on the rear 
panel. One for high frequencies (Figure 1) and one for the 
low frequencies (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 frequency control 

 

 

Low pass section settings 

 
The dipswitch can be set to one of the four dB level 
positions for an optimum low frequencies setting 

Positions available: -1, flat, +1, +2 dB 
 

 

 

Figure 2:

 Low frequency control 

 
 

Summary of Contents for AV-20

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

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

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

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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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