User`s Manual
Contents
1. A Standard demo track loops Loops all demo tracks Input level monitor bargraph Input level is clipping source level is too high Input level is too low for optimal performance Low frequency EO control Bass 9 to 9 High frequency EO control Treble 9 to 9 Autolevel Off On Applies acompressor algorithm to adjust volume automatically for best results Boost Off On Applies a soft clip limiter that introduces light THD in exchange for additional perceived output level IR active mode Off On Use to disable IR control Factory reset all settings press up arrow to reset To confirm factory reset press up arrow again 8 Audio Spotlig ht User s Manual Speaker Mounting The speaker panel was designed for flexible mounting Two M6 holes in the center are compatible with most loudspeaker brackets and four M4 holes in a VESA100 pattern are compatible with a wide variety of additional brackets Two keyhole mounts allow mounting flat against most surfaces 4 x M4 10mm O 2 x M6 Keyholes for M6 or 2 3 8 1 4 20 panhead i 60 3 mm i NOTE When using the keyhole mounts for overhead mounting a secondary fastener bumper or retainer MUST be used in case the speaker is inadvertently moved to prevent falling Wall Ceiling Holosonics recommends using our own mounting kits MNT 1 with Audio Spotlight speakers The bracket attaches to the back of the speaker with two included screws and can mo2. and pending 4 Audio Spotlight User s Manual Fa uk Important Safety Instructions 1 Read these instructions 2 Keep these instructions 3 Heed all warnings 4 Follow all instructions 5 Do not use this apparatus near water 6 Clean only with dry cloth 7 Do not block any ventilation openings Install in accordance with the manufacturer s instructions 8 Do not install near any heat sources such as radiators heat registers stoves or other apparatus including amplifiers that produce heat 9 Do not defeat the safety purpose of the polarized or grounding type plug A polarized plug has two blades with one wider than the other A grounding type plug has two blades and a third grounding prong The wide blade or the third prong is provided for your safety lf the provided plug does not fit into your outlet consult an electrician for replacement of the obsolete outlet 10 Protect the power cord from being walked on or pinched particularly at plugs convenience receptacles and the point where they exit from the apparatus 11 Only use attachments accessories specified by the manufacturer 12 Use only with the cart stand tripod bracket or table specified by the manufacturer or sold with the apparatus When a cart is used use caution when moving the cart apparatus combination to avoid injury from tip over 13 Unplug this apparatus during lightning storms or when unused for long periods of time 14 Refer all s
3. User s Manual 5 Package Contents Audio Spotlight integrated speaker panel Power Supply Power cable IR Remote Optional Accessories Mounting Brackets see www holosonics com microSD Card System Connections Audio Spotlight speaker panel Dual RCA to optional audio source Slot for optional microSD card Power switch To power supply The included power supply will operate with any standard mains voltage and frequency worldwide See power supply for detailed voltage and current specifications 6 Audio Spotlight User s Manual OO System Operation The system can accept audio input from either an external audio source microSD card or internal built in demo tracks External Audio Source Connect system as shown on the previous page Press the power switch to power on system Display will illuminate and show a welcome message System self tests with the bargraph growing from zero to full scale and back Ensure that no microSD card is inserted Start the audio source Use the A up and Y down arrows to adjust volume me AU i Using microSD Audio If a microSD card is inserted the system will automatically loop through all content on the microSD Any playback through the microSD player will be mixed with the external audio input if connected The microSD card must be FAT32 formatted The built in player supports standard 16 bit PCM Wave wav or any Ogg Vorbis ogg files These
4. aced or removed Service If your Audio Spotlight system needs service please contact Holosonics for a return materials authorization RMA number Received units will not be accepted without a valid RMA Call us or email service holosonics com NO USER SERVICABLE PARTS ARE INSIDE THE SYSTEM DO NOT OPEN Holosonic Research Labs Inc Phone 617 923 4000 400 Pleasant Street Fax 617 507 3474 Watertown MA 02472 Email info holosonics com USA Web www holosonics com 2015 Holosonic Research Labs Inc Holosonics Audio Spotlight and Holosonic are registered trademarks of Holosonics US and International Patents Apply v12c Birds of a Feather excerpt written and recorded by The Rosenbergs Copyright 2004 Used with permission Beachfront Celebration excerpt written and recorded by Kevin MacLeod incompetech com Licensed under Creative Commons By Attribution 3 0 http creativecommons org licenses by 3 0
5. audio ight Holosonic Research Labs User s Manual 2015 Holosonic Research Labs Inc Audio Spotlight User s Manual 3 Introduction Audio Spotlights may be the most radical technological development in acoustics since the coil loudspeaker was invented in 1925 The audio spotlight will force people to rethink their relationship with sound as the arrivals of the phonograph the telephone and the Walkman have done before New York Times Thank you very much for choosing the Audio Spotlight system Years ago as a MIT graduate student created the Audio Spotlight because of deficiencies saw in the way traditional loudspeakers made sound in particular their lack of control Never before has it been possible to give people the power to control not only what their sound is but also where their sound goes and as importantly where it doesn t founded Holosonics to commercialize the Audio Spotlight technology and make it available to anyone who would like to take advantage of its unique features As we continue to move this unique technology forward would like to hear from you regarding your experiences successes challenges and ideas regarding the Audio Spotlight technology and everyone at Holosonics look forward to working with you Dr F Joseph Pompei President and Founder Audio Spotlight and Holosonics are registered trademarks of Holosonic Research Labs Inc US and International patents issued
6. ervicing to gualified service personnel Servicing is reguired when the apparatus has been damaged in any way such as power supply cord or plug is damaged liguid has been spilled or objects have fallen into the apparatus the apparatus has been exposed to rain or moisture does not operate normally or has been dropped 15 Installers are reguired to follow sound and reasonable judgment when installing Audio Spotlight products Compliance with all building safety and fire codes is the sole responsibility of the installer and or end user 16 Do not connect Audio Spotlight devices to traditional loudspeaker amplifiers or loudspeakers Damage and or hazardous conditions could result 17 Our standard cables are not plenum rated Please contact the factory if special specifications are reguired WARNING To reduce the risk of fire or electric shock do not expose this apparatus to rain or moisture WARNING Terminals marked with the symbol h are hazardous live External wiring connected to these terminals requires installation by a qualified instructed person or the use of ready made leads or cords WARNING When mounting the speaker panel overhead always use a secondary fastening method in case the primary attachment fails The symbol indicates that there are hazardous voltages within the enclosure Do not open Refer all servicing needs to the manufacturer or the manufacturer s designated service representatives Audio Spotlight
7. formats provide higher quality encoding than MP3 and can be encoded and used free of all licensing fees There are many popular third party programs and online conversion sites available or you can visit www holosonics com FAQ html for more information on free file conversion Holosonics is also happy to assist converting your files directly if needed Built in Demonstration Material Built in demo material can be accessed by pressing Mode until the Demo mode is active Pressing the Up and Down arrows select the specific track to loop or All to loop all of them sequentially Demonstration Tracks 1 Introduction 7 Female Voice 2 Birds of a Feather 8 Birds 3 Beachfront Celebration 9 Glass 4 Hungarian Dance 10 Laser 5 Jazz 11 Footsteps 6 Male Voice Audio Spotlight User s Manual 7 Modes and Settings Change mode with MODE button and adjust parameters with A and Y buttons In most modes display will timeout to the default bargraph after a few seconds All settings are retained after power cycling Preset A Default Mode bargraph shows output level Clipping indicated by gg at the top of the scale Volume adjustment mode Up down alters system volume from 0 99 max Clipping indicated by gg Sets built in audio processing preset A B C Preset A Optimized for typical full frequency content Preset B Optimized for raw voice Preset C Optimized for maximum output Demo Mode off by default
8. ile This allows for seamless integration in suspended ceiling applications Be sure that the ceiling frame is sufficiently strong to j safely support the weight of the 4 speaker panel and always use a backup line for safety 10 Audio Spotlight User s Manual Understanding the sound field The Audio Spotlight directional speaker creates a very precise well controlled beam of sound with no sidelobes or other artifacts typical of traditional loudspeakers Because sound is created in mid air and not by the speaker panel sound actually gets louder with distance up to about 1 or 2m depending on freguency Sound also diminishes with distance much more slowly than a traditional loudspeaker creating a more uniform field of sound An illustration of the field from the AS 16i system is shown below Three contours are shown at the contours of OdB 6dB 50 and 20dB 10 Additional data is shown in Appendix A The loudest sound area is directly in front of the speaker panel at a distance of 1 2m Sound levels outside the beam are reduced by over 90 In all sound systems audibility is determined by sound level received versus background noise levels Therefore the beam will be perceived as more narrow in the presence of background noise as any scatter from a listener or floor will be inaudible This is much like the difference in shining a flashlight in a completely dark room versus one with background
9. lighting Audio Spotlight User s Manual 1 Basic Installation The most common use of the Audio Spotlight technology is to deliver sound to a specific isolated area Just as with lighting the Audio Spotlight speaker is best mounted directly above the listener aimed downward left This provides maximum localization The speaker panel can also be mounted on a wall and angled downward to reach the listener right Reflections While the beam generated by the Audio Spotlight system is very narrow the beam will reflect from surfaces and listeners in your environment just like light To sound waves solid surfaces are much like mirrors are to light Therefore to reduce reflections an acoustically absorbing surface such as carpet padding or curtains could be used to catch the beam and reduce the reflection Generally this is useful only in very quiet spaces where there is little background noise to mask minor scattered energy Also like light reflections can be used as projection of audible sound By directing the beam against a surface one can create very interesting virtual loudspeaker effects The beam will generally maintain its directivity after projection so it is best to ensure that the listener is in the path of the reflected beam 12 Audio Spotlight User s Manual Multiple systems Multiple Audio Spotlight systems can be used to create a larger field of sound or to increase the sound in
10. s Since this line level is not amplified a powered subwoofer or separate amplifier is required The subwoofer s crossover frequency if it is adjustable should be selected to suit your listening material and background noise For isolated bass reproduction one may also use a tactile transducer such as the Aura Bass Shaker or Clark models Contact Holosonics if you need assistance or subwoofer recommendations 14 Audio Spotlight User s Manual Appendix A Sound Field Specifications Design Specifications AS 1681 AS 16i AS 24i oO o N mh A M O 00 uy 10 12 In general there is a doubling of available output power and an additional octave of low frequency reach stepping up from the smallest AS 168i model to the AS 16i and once more from the AS 16i to the larger AS 24i Sound fields shown for standard 1kHz tone Audio Spotlight User s Manual 15 Limited Warranty Holosonics warrants that your Audio Spotlight system is free from defects in material and workmanship for a period of one 1 year after date of purchase This warranty does not cover claims for damage caused by accident misuse neglect alteration outdoor use disassembly unauthorized repair shipping or modification Holosonics liability is limited to the repair or replacement at our option of any defective product and shall not include incidental or consequential damages of any kind Warranty is void if serial number is def
11. tensity in a given region Just like visual spotlights beams of sound can be aimed next to each other to shape the sound field left or multiple speaker panels can be aimed to one position right Just as with light sound from these systems will combine to increase output substantially This can be done over very long distances to create long throw beams of sound M ania RZ Many variations of these basic designs are possible this manual is intended to act as a guide In considering different ways to install the Audio Spotlight speakers keep the lighting analogy in mind More often than not Audio Spotlight should be thought of in lighting design terms not in loudspeaker terms As always Holosonics is happy to assist with your project Audio Spotlight User s Manual 13 Subwoofer Augmentation While a traditional subwoofer is of course not directional it can nonetheless be used effectively to augment the low frequency reproduction of the Audio Spotlight system The human ear and a listener s attention is most sensitive to frequencies between 600Hz and 2kHz As long as the level of the subwoofer is not too loud and is limited to reproducing only low frequencies the slight rumble that exists outside of the Audio Spotlight beam is generally unnoticed Connecting a subwoofer is straightforward Use a standard splitter or Y cable to send the same line level signal to the Audio Spotlight and subwoofer system
12. unt to any suitable flat surface By loosening the screw on the bracket the speaker panel can be aimed as desired An extension arm is also included See the instructions that come with the MNT 1 kit for more details Audio Spotlight User s Manual 9 Overhead cable hanging Overhead cable hanging is useful when shining the Audio Spotlight beam straight down particularly from a high ceiling Use four M4 eyebolts to suspend the speaker panel from steel cable Eyebolts are commonly available and Holosonics can supply them upon reguest Suspended Ceilings Suspended ceilings are not designed to support all loads When hanging any object from a suspended ceiling be sure that it is connected to the structural ceiling and is rigid enough to support the speaker panel Flat mounting The thin profile of the Audio Spotlight speakers makes mounting flat against a ceiling attractive and simple Our CM 1 mount kit contains a support brace for using inside the ceiling grid and two long screws for attaching the speaker Aiming Our CM 1 kit is compatible with the MNT 1 mount allowing flexible aiming of the speaker panel in a suspended ceiling The MNT 1 attaches to the ceiling panel with two long screws two washers and two nuts The screws extend up to the support brace and connect with two more nuts Ceiling tile replacement The AS 24i model is designed to precisely replace a standard 2 x2 or db 600mm ceiling t
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