Transcript
Aura Audio A2 MANUAL
Version 1.2
SAFETY INSTRUCTIONS Read this user manual and keep it with the product Always follow all safety instructions and local security regulations Never use accessories not manufactured or approved by Aura Audio Make sure no audience or crew member is too close to loudspeakers when operating with high sound pressure levels (SPL) Professional loudspeaker systems are capable of producing sound pressure levels high enough to cause permanent hearing damage even at exposure times less than couple of minutes Please check the Aura Audio website on a regular basis for latest downloads and updates In case of any questions please don´t hesitate to contact us for more information via
[email protected] We also welcome all comments and system pics from you!
TABLE OF CONTENTS 1. 2. 3. 4. 5. 6. 7. 8.
Safety Instructions Introduction Applications and System Options Prediction with EASE Focus2 Operation with A2R Specifications Directivity Measurements Declaration of Conformity
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Aura Audio A2 MANUAL
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INTRODUCTION A2 is a compact passive 3-way line array speaker. It consists of two (2) 10” low frequency driver, 6.5” cone driver loaded multi-path waveguide and two (2) 0.65” exit compression drivers loaded with triple exit waveguides. Two (2) 10” low frequency drivers are loaded with narrowQ band-pass horn for extra sensitivity which actually equals two front loaded 12” drivers in SPL over 150-400Hz. Low frequency response is extended to 65Hz using tuned combined back volume. The heart of A2, like in its predecessor A1 is M6 mid frequency driver consisting of 6.5” neodymium magnet cone driver loaded with internationally patented multi-path waveguide. Not only does this technology increase the sensitivity roughly 10dB but M6 sound channels LPF also cancel harmonics making distortion levels at max SPL between 10-20dB lower than standard speaker systems equal size. M6 also features wide horizontal beam width and high cut off frequency of 4kHz making it possible to use small diaphragm lightweight compression drivers for high frequencies for increased sensitivity and detail. Two (2) A2´s can be driven with Aura Audio D2k.A1 powered controller channel or up to three (3) with Powersoft X-series amplifiers fitted with OEM preset libraries. www.auraaudio.com
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Aura Audio A2 MANUAL
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APPLICATIONS Front of house systems Medium to large installations Music reinforcement with or without subwoofer SYSTEM OPTIONS A2 compact line array speaker Full range operation down to 65Hz A2R Flying Frame for A2 array of 1 to 20 units A2RG Ground stacking or on a top of XD-series subwoofer Powersoft X8 - A2 Presets - max 3 units /ch (24 units) Aura Audio D2x.A2 - max 1 unit /ch (2 units) Music reinforcement with subwoofer: XD12 compact subwoofer; operation to 40Hz XD18 high power subwoofer; operation to 33Hz A28 Passive End Fire Subwoofer; operation to 38Hz
A28 – Passive End Fire Subwoofer
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Aura Audio A2 MANUAL
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PREDICTION WITH EASE Focus 3 EASE Focus 3 is a 3D system design software developed by AFMG GmbH. Before using the software visit “downloads” section in Aura Audio website to download A2 GLL file and then download EASE Focus 3 software from http://afmg.eu Install the software and import A2 GLL file to your project: Edit / Import System Definition File… => Add Sound Source Please refer to the EASE Focus 3 User Manual for more details or contact Aura Audio user support via email info(at)auraaudio.fi
We recommend you always verify the system performance after the setup is completely ready by measuring frequency response from at least two or three locations (front of house, middle of audience area, balcony etc.) and by listening familiar music material. It is also necessary to time aline subwoofers to flown array separate and summed measurements from both subs and tops and adjust delay to one or both groups accordingly.
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OPERATION WITH A2R FLYING FRAME A2 and A2R flying frames are in conformity with UNI EN 13155:2009. The safety factor is equal to 10:1 on the breaking load. However there are wide regulation variations internationally and practices applying to suspension of sound systems in public places. Consequently, users of Aura Audio rigging systems should be prepared to take additional safety assurance measures beyond those outlined in this manual. ! ! ! WARNING ! ! ! Do not suspend more than 18 A2 with one A2R flying frame! WLL for A2 is 700 Kg (1543 lb). In the following three steps we show how to suspend A2 array with A2R flying frame.
1# Place A2R on top of the first A2 and connect the front quick release pins first. Pull back the pins to make sure they are locked. To release the pin just push the button in the pin and pull back the pin. 2# Connect the angle rod according to Ease Focus simulation. A2 features 5 choices for angles; 0.5, 2, 5, 7.5 and 10 degrees. A2R only has one connection for angle rod. 3# Hook the motor chains to the A2R bumper. The motor chains can be connected directly to the A2R using omega shackle(s) supplied with the system. Now you are ready to lift and connect the next A2 under the top A2 repeating the steps 1# and 2# above. www.auraaudio.com
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Aura Audio A2 MANUAL
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A2 - SPECIFICATIONS Frequency Response (+-3 dB): 65–22000 Hz Horizontal Nominal Coverage (-6 dB): 90 degrees Vertical Nominal Coverage (-6 dB): 10 degrees Max peak SPL: 142 dB (free space) Sensitivity, 1w/1m: 109 dB (free space) Impedance: 8 Ohms Crossover: 400Hz and 3.5kHz passive 3-way Power handling: 500 W rms, 2000 W peak Recommended HP-filter: 65-80 Hz, 12dB/oct DRIVERS LF: (2) x 10” cone driver, band-pass horn loaded MF: (1) x 6.5” neodymium magnet cone driver, horn-loaded HF: (2) x 0.65” exit compression driver, triple exit waveguide ENCLOSURE Enclosure: Birch plywood, textured black paint finish Grille: Cold rolled steel grille, textured black paint finish Rigging system: Stainless steel, textured black paint finish Connectors: (2) x NL4, +/-1: IN/LINK, +/-2: n.c. Dimensions: 700 mm x 310 mm x 460 mm Weight: 33 kg
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DIRECTIVITY MEASUREMENTS
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Aura Audio A2 MANUAL
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Version 1.2
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