AUDAC AXIR
Contents
1. Approach 1 Maximum listening area When a large listening area is desired an angle of around 3 is recommended When you move away from the loudspeaker the sound pressure level will be decreased This decrease depends on the reverberation of the room in which the speaker is placed If you want the high tones to be clearly audible make sure the listener is able to see the loudspeaker array Valid for angles up to 3 e p gt E Listening area Approach 2 Minimal variation in sound pressure level When a minimal variation in sound pressure level is desired an angle of 5 is ideal for this purpose The size of the total listening area becomes in comparison with the previous approach smaller The space nearby the loudspeaker does not belong to the listening area Diagram 1 shows the relationship between A and the mounting height of the loudspeaker when using an angle of 5 Valid for an angle from 5 to 10 Listening area EEE fs a a ES E E P NE 3 z Hu O e B i fav S en R pa D c Ll 2 an E E UN E o 2 om JE 2 O Distance between speaker and listening area STEP 3 When you ve chosen one of the above approaches to determine your mounting angle you proceed by determining the mounting height This height is determined by aiming the 0 axis of the AXIR in th2. introduction briefly describes the possibilities of the AXIR design column speaker he AXIR was designed to meet professional demands en proves its worth in auditoria conference rooms meeting rooms churches any place that requires a great flexibility in positioning and tuning ass well as state of the art audio quality and design Key features High quality 2 inch speakers especially designed by AUDAC make the AXIR suitable for music and speech 4 selectable output power taps for 100V operation mode Ultra lightweight design and strong aluminum housing Especially designed metal wall brackets included Two separate power tap selectors for upper and lower speaker units allow you to create a specific polar pattern It can accommodate virtually any acoustic situation Warning Only use the correct amplifier output voltage and impedance exceeding these limits could cause damage fire or other failures e Only install the speaker on surfaces that can accommodate the weight of the speaker and the mounting bracket Don t use any other mounting method than specified e Attach a safety wire to the speaker when it s mounted high up This ensures that the speaker can t fall down in any case e Avoid mounting the speaker in locations exposed to constant vibrations The mounting bracket can be damaged by excessive vibration potentially causing the speaker to fall down Caution e Avoid electric shocks
3. turn off the amplifier when connecting the speaker Don t operate the speaker for an extended period of time at distorted sound This can cause irreparable damage to the speaker e Don t stand or sit on it nor hang down from the speaker as this may cause it to fall down or drop Installation To achieve the best possible intelligibility and sound quality with a column speaker there has to be paid extra attention to the proper mounting of the speaker The dimensions of the desired listening area has to be determined where out the correct mounting height and angle can be derived A step by step installation procedure describes the method to determine the mounting height and angle for the AXIR DETERMINING LISTENING AREA AND MOUNTING HEIGHT STEP 1 Determine the dimensions of the desired Listening Area This is a horizontal plane at the level of the listeners ears Refer to the dashed line in following figure Listening Area 2 After listening area determine at which angle the loudspeaker array has to be mounted The AXIR column speaker was designed to aim the sound just above the heads of the listeners and it is recommended not to exceed an angle of 6 There are two different approaches to determine the mounting angle each with specific advantages and disadvantages Which approach you choose depends on what you want to achieve a maximum listening area or a minimal variation in sound pressure level
4. AXIR PROFESSIONAL AUDIO EQUIPMENT AXIR Design Column speaker User Manual amp Installation Guide AUDAC PROFESSIONAL AUDIO EQUIPMENT User Manual amp Installation Guide AUDAC http www audac eu info audac eu Index INTRODUCTION KARE EA T T ET OE E 2 SAFETY REQUIREMENTS sussssoesesnssnenesnssnenennenssnsnssnssnenennssnenennenssnsnusnssnensnnsnnenennensnnenssnssnsnnsnssnensnnssnenenssnsenennsnssnensnnsnnenssnsnssnsnnsnssnensnnssnenssnsssenennsnnenen 3 WARNING CAUTION enu Sole ep ta ea e e e e AN BEE 3 INSTALLATTON Ec 4 DETERMINING LISTENING AREA AND MOUNTING HEIGHT 4 OTHER POINT PAY ATTENTION ER im eeu epe e Roa ekle Heeres ge 7 CREATE SPECIFIC POLAR PATTERNS x ie 8 CONNECTING THE AXIR 9 5 etti DOR ODORE REO D RU E E UOTE THER RENE E PERTERRITUS 9 LINE TRANSFORMER POWER TAPDS 40206 L a oe e Ll D NE HR EIN SY SEYLER EDER Y LER 10 CONVERT FOR USE IN LOW IMPEDANCE APPLICATIONS 11 ADDITIONAL INFORMATION AXIR 12 TECHNICAL SPECIBICATIONS en rt nn RE nent VE eee RRE RRE REEE one 12 POLAR PATTERNSt nennen UN ET ERI BER AG se naa n DEI DEBIT tn Et on 13 PERSONAL NOTES ET RER PE PE GE Re bon OTE da 14 Introduction
5. aker for use in 100V or low impedance applications Set the switch to 100V for 100V applications and set the switch to 60 for low impedance applications iocus Make sure that the two switches are always both in the same position Make sure that it occurs that one of them is on 100V and the other is in 60 position 11 Additional information AXIR TECHNICAL SPECIFICATIONS RMS Power 120 W Max Power 240 W Impedance 6 Ohm Line Transformer power tappings 2 x 500 Ohm 2 x 20 W 2 1000 Ohm 2 10 2 2000 Ohm 2 5 2 4000 Ohm 2 2 5 W Sound pressure 1W 1m 86 dB Sound pressure max W 1 m 100 V 106 dB Frequency response 3 dB 100 Hz 17 kHz Horizontal coverage 1709 Construction Aluminium Front finish Aluminium grille Drivers 12 x 2 inch Dimensions W x H x D 70 x 1005 x 105 mm Weight 4 00 Kg Accessories included Wall bracket Colors White RAL 9010 Black RAL 9005 12 Polar patterns 4000 Hz 8000 Hz Horizontal Vertical 13 Personal notes 14
6. e desired position precisely above ear level of the listener who s the furthest away from the speaker This can be adjusted by mounting the loudspeaker higher and lower on the wall STEP 4 When you ve determined the mounting angle and height you can start installing the speaker OTHER POINTS TO PAY ATTENTION TO While mounting a column speaker there are still some other points where has to be paid attention to Make sure that the loudspeaker array is always visible for everyone in the listening area to ensure a good audibility of the high tones High tones can be compared with light When something is between observer and the light source the observer can t see the light source at it s full power this is what we call shadow For high tones this is the same issue When someone is standing between the listener and the loudspeaker the listener is located in the sound shadow The sound shadow will be experienced as a reduction of high tones When the loudspeaket is installed at a very small angle a large listening area can be reached Depending on the amount of reverberation in the room and the sound shadow the speech intelligibility on a far position may be low In this situation it is recommended to use more loudspeaker arrays to split the listening area When you move further than the maximum position of the listening area further than the maximum distance of the loudspeaker array only the sound pressure
7. level will decrease There will be almost no tone height variation The decreasing factor of the sound pressure level depends strongly on the reverberation of the room When you are located too close to the loudspeaker array closer than the minimum distance a decline of the high tones will occur very soon Because the loudspeakers are designed to beam the sound just above the listeners eats it s better to mount speakers not to high above the listening area When you want to determine where exactly the edges of the listening area are located in your situation you have to do a practical test at this location This is a job for an experienced listener with well trained cars Put pink noise through the loudspeaker array and reduce the lower tones for this test because they do not contribute to speech intelligibility Walk around in the listening area and pay attention to the high tones The places where the high tones decrease rapidly are the edges of the listening area CREATE SPECIFIC POLAR PATTERNS The AXIR contains two individual speaker sections whose power can be individually set between 20W 10W 5W and 2 5W The desired power taps can be selected by a recessed adjuster screw behind the speakers cover This allows us to set the total speaker power between 5W and 40W but it also gives the possibility to create a specific polar pattern By adjusting the upper and lower power taps independent from each other the sound tran
8. river The cover plate is coming loose without performing large forces After the cover plate is removed the two power tap selector switches are visible The power taps can be set to 4 different powers for each individual speaker section Adjust the power taps by using a screwdriver to turn the rotary switch 1 20W o o upper loop 2 10W nn AUDAC 4 25W 10 CONVERT FOR USE IN LOW IMPEDANCE APPLICATIONS An otice Only perform this procedure if the speaker should be used in low impedance applications For use in low impedance applications the internal switches of the speaker must be switched To reach the internal switches the front cover plate with the AUDAC logo should be removed very carefully This is best done by carefully sticking a flat object under the cover plate e g a small flat screwdriver The cover plate is coming loose without performing large forces After the cover plate is removed the two power tap selector switches are visible upper loop BILLIG To reach the internal switches the plate with the two power tap selector switches should be removed This can be done by loosening the 6 Phillips screws whereby it is attached Once these screws are loose the plate can be carefully removed out of the speaker Be careful with the wiring inside the speaker Then you will see that there are two switches provided at the side of this plate These switches are meant to convert the spe
9. sfer length can be adapted to each specific situation Following figure shows an example of a situation where by means of the two individual power tap selectors a specific polat pattern can be realized The lower speaker section is set a lower power than the upper speaker section By correct focusing of the speaker the sound transfer length of the speaker can be adapted to each specific situation Listening area Listening area Connecting the AXIR CONNECTIONS At the back of the AXIR is a 3 pole euro terminal block connector provided to connect the amplifier with the AXIR column speaker Depending of the speaker is used in 100V applications or low impedance applications the wiring diagram is different This is done for protection reasons of the speaker For 100V applications are the two outer pins used Pin 1 amp Pin 3 and for low impedance applications is the centre pin and one outer pin used Pin 1 amp Pin 2 ZN weine Notice polarity markings when witing the loudspeaker cables cono The AXIR is default set for use in 100V applications for use in low impedance applications the internal switches of the speaker must be switched LINE TRANSFORMER POWER TAPS To adjust the power taps of the speaker the front cover plate with the AUDAC logo should be removed very carefully This is best done by carefully sticking a flat object under the cover plate e g a small flat screwd
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