Models: LFi2T & LFi4T
Contents
1. larger the vibrating soundboard area the greater the distance it is possible to move away from the panel or source without showing an appreciable loss in S PL This is very much the case when the whole of the stud wall or ceiling in effect becomes the vibrating surface The situation improves further when an Amina Life Fidelity diffuse source panel is used in an acoustically reflective bounded environment e g conservatory pool area or room containing very little soft furnishings Here the reflected phase incoherent energy is generally constructive contributing to the overall S P L generating a very even sound fill across a given bounded space 05 Conventional Loud Speaker Amina Flat Panel NXT Technology Fall off volume level with distance Sound Pressure Level SPL Sound Pressure Level SPL Distance Distance Radiated sound energy is random diffused and highly dispersed Conventional cone point source loudspeakers radiate sound energy that is phase related This is analogous to the ripples formed when dropping a pebble into still water Reflections from boundaries are highly correlated with the energy from the original source Additions and cancellations occur helping to create a variety of problems including room response reverberation poor intelligibility and feedback when used with open microphone channels Th2. be required in a Z1 surround sound application 7 panels The product positioning follows the general requirements of each of those system types One left of and one right of and in front of the general listening position for stereo One left of one central to and one right of and in front of the general listening position together with one right of and one left of and to the rear of the general listening position for 5 1 surround sound Of course real room layouts seldom provide ideal locations especially considering the numerous listening or seat positions generally requiring coverage The advantage of this type of diffuse source loudspeaker is that the speaker position and listening position are far less critical making them ideal for real rooms The following schematics give a few ideas on typical positions to be adopted in stereo and 5 1 surround applications in a series of real life rooms Lounge system set up x E x Ceiling Mount 5 1 Ceiling Mount Stereo for music X X UJall Mount 5 1 Optional front amp rear positions on uJall Example 5 1 Surround Sound in the Bedroom Key A good example to pick out here is the bedroom with a requirement for a 5 1 surround system X Amina Plaster In wall Installation of any loudspeaker within a ceiling is generally very easy within a bedroom assuming a speaker traditional house layout due to the ease of access through a loft void However the u
3. e g Amina AF2 80 or equivalent 5 C 35 C 41 F 95 F 15 We wish you many happy hours of delightful listening to this unique audio product If you have any questions or comments or need any help or advice we would be delighted to hear from you by phone letter or email using the contact details opposite At the end of its useful life and in compliance with the European directive on waste electrical and electronic equipment WEEE this product is to be returned to your supplier or directly to Amina for recycling If you have any questions please call Amina for assistance This document is Copyright of Amina Technologies Ltd 2007 Easi fill is a trademark of British Gypsum Ltd Amina is a registered trademark of Amina Technologies Ltd Life Fidelity is a trademark of Amina Technologies Ltd Customer Services Amina Technologies Ltd Cirrus House Glebe Road Huntingdon Cambridgeshire PE29 7DX T 44 0 1480 354390 F 44 0 1480 356564 E inspired amina co uk UJ www amina co uk nw mo TECHNOLOGIES Ltd INSTRUCTION GUIDE Amina Technologies Ltd Cirrus House Glebe Road Huntingdon Cambridgeshire PE29 7DX T 44 0 1480 354390 F 44 0 1480 356564 E inspired amina co uk UJ www amina co uk nl iw on TECHNOLOGIES Ltd
4. is generally spherical in shape across most of the frequencies it reproduces The positioning of the product is therefore much less critical than with conventional point source inherently directional cone loudspeakers There is no need to angle this product to a specific direction its height is far less relevant and can be placed in any orientation or plane Polar plot of an Amina LFi2T Diffuse Source Loudspeaker _ 500Hz 9 KIR WPA XXX WSS ee SES QA nE lt 2 SONA RSF 2 80 70 60 50 40 30 20 10 dB SH 60 70 80 2 SOY 2kHz 90 kHz 90 80 70 60 50 40 30 20 90 90 10 dB 10 20 30 40 50 60 70 80 90 90 Ses Im SSSR 90 wa AS 70 2 YQ 5 70 KESER HH n 90 _ 16kHz ea CGS OCA SITS KS SHR 90 A The Sound pressure level fall off is more gradual off axis and in a bounded space Sound pressure level S P L from a conventional point source cone loudspeaker falls off dramatically as the listener moves away from the speaker This is more true than ever when listening off axis i e not directly in front of the cone speaker However the S PL fall off from an Amina Life Fidelity diffuse source product is much less severe with distance especially when listening off axis In fact the
5. related sound wave Whilst this diffuse energy is unseen and its effects are not immediately obvious this is important in acoustically live spaces and in the way our brains interpret sound the complex science of psychoacoustics Please note that this In wall loudspeaker product by itself is not a direct replacement for a conventional full range loudspeaker system In hi fi and home theatre listening applications a low frequency driver or sub bass may be required to lift the bottom end of the frequency spectrum This is easily done as the direction of such low frequencies are not detected by the human ear allowing such a device to be placed in the most convenient and unobtrusive of locations For general background music listening and voice reproduction this product is generally sufficient to be used alone Harrogate House Amina In wall Loudspeaker Panels were installed in the living space to be used with the television and surround sound system 03 Amina Life Fidelity Characteristics Amina versus ordinary speakers Before installation you should be aware of the basic characteristics of the Amina Life Fidelity diffuse source technology This will help you to get the best results from the product and enable long term reliable operation in your chosen application Sound radiates in all directions Sound dispersion from an Amina Life Fidelity diffuse source product
6. 0mm in your plasterboard wall or ceiling This is best done using a series of shallow cuts rather than one deep cut Ensure the aperture is positioned in between Supporting joists or stud work We strongly advise that joists are not cut to make space for the LFiT loudspeaker Any activity of this sort may well influence the structural integrity of your property Special size panels are available to order should the inner joist space be smaller than this standard product The product can be oriented in either landscape or portrait style It can also be mounted within sloping ceiling lines Pull cables Ensure all loudspeaker cables are brought to this point and check their continuity back to your source amplifier We recommend use of a loudspeaker cable with conduction area of at least 0 25mm 2 or greater for long cable runs Insulate Cavity As per the advice given on isolation techniques please see Pg 9 in the full LFiT instruc tion manual for more info you may find it is appropriate to add sound absorbing mineral wool or create a boxed containment section to further reduce sound transmission behind the In wall loudspeaker Place a mineral wool layer above a ceiling mounted panel to stop debris falling on the panel s rear surface Ld ttt t1ed dA i N N N N N N N Fix installation lugs use dry wall screws Fix installation lugs Position an installation lug under the plasterboard at each corner of your ape
7. INSTRUCTION GUIDE Amina Technologies Ltd Models LFi2T amp LFi4T Amina Life Fidelity Series LOOV 7OV plaster in Wwall and in ceiling loudspeaker EEEE Amina Technologies Ltd Cirrus House Glebe Road Huntingdon Cambridgeshire PE29 7DX T 44 0 1480 354390 F 44 0 1480 356564 E inspired amina co uk UJ www amina co uk C INN C TECHNOLOGIES Ltd Thankyou for purchasing an Amina Technologies product We recommend that you spend a few minutes reading this guide which has been written to help you get the most from your purchase Safety Warning Never connect this product directly to the mains electrical supply Fragile Electronic Equipment This Amina product is a sensitive piece of electronic equipment please take great care of it Damage will occur with harsh treatment Unpacking Unpack your Amina Life Fidelity Plaster in wall loudspeaker abbreviated In wall Loudspeaker in this document with care Visually check the product and in the event of transit damage immediately inform your supplier We suggest retaining your packaging to transport the product safely at a later date Contents This carton contains four white plastic mounting lugs to every one Amina In wall Loudspeaker Please Note In order to protect this device from excessive low frequency audio energy this product must be used in conjunction with a high pass filter set at 80Hz or higher and with an at
8. e radiated sound from an Amina life Fidelity diffuse source panel loudspeaker is essentially random in nature non correlated and significantly less phase related Reflected energy is principally constructive creating a very even sound pressure across the entire space Reverberation room response and microphone feedback are generally reduced and intelligibility is generally improved over a much wider area due to the very different intermodulation effects that take place with a diffuse energy source Visual appearance can be matched to the surrounding decoration Aesthetically the concept of a thin flat panel allows greater creativity in visually disguising the product to merge into any room aesthetic This is particularly true of the Amina Plaster In wall loudspeaker range which offers zero visibility and therefore zero interference with interior design o6 Amina bespoke service For situations where Plaster In wall or In Ceiling panel loudspeakers are not appropriate Amina provide a bespoke manufacturing and customisation service Panel loudspeakers can be painted veneered flocked or have a laminated print containing the image of the clients choice mounted to its surface Please ask your supplier for details Amina can also provide a full custom service designing and making any size and shape panel loudspeakers according to client specifications Applications Amina In wall or In Ceiling loudspeaker
9. ed with products appropriate to the finish paint or wallpaper you have finally applied to the plaster surface The wall or ceiling can be repainted or redecorated any number of times Extreme care should be taken when removing wallpaper type coverings to ensure the plaster surface is not damaged or pushed in during removal and renewal of the wallpaper If damage to the plaster work occurs use British Gypsum Easi fill or similar to repair the plaster surface prior to re decorating Avoid pushing the wall or ceiling surface immediately in front of the panel loudspeaker excursion whilst unlikely to damage the loudspeaker will undoubtedly crack the plaster around the perimeter of the product Excessive Warranty This product carries a seven year manufacturers limited warranty If it fails please return it to your supplier Amina uuill work with your supplier to ensure any defects are repaired and your product returned to you This statement does not affect your statutory rights Reliability Correctly installed and used within its specification this product is designed to give many many years of trouble free service As a technology the Life Fidelity diffuse source vibrational soundboard technique has very few moving parts Compared to a conventional moving coil loudspeaker these movements are almost negligible Whilst our sensitive touch sense can feel the tiny movements they are not sufficient to be seen by the
10. ered at 80 Hz minimum 24dB per octave to ensure long term reliable operation This may require a separate piece of hardware e g The Amina AF2 active high pass filter or this function may be performed by the amplifier itself 3 It is recommended that you allow for some equalisation preferably on each individual channel in your system specification this may be a separate piece of hardware or this function may be built into your AV surround processor to allow adjustment of the final frequency response Differing plaster depths and wall structures particularly wall cavities may alter the frequency response of each panel Equalisation in each channel makes it possible to compensate for these small differences and achieve optimised audio reproduction from every panel loudspeaker in your system If the panel is placed in a stud wall or ceiling that has sizeable cavity space behind it the resulting sound may be very heavily bass weighted This bass is generated because the cavity forms its own resonant chamber that is excited by the panel You may need to adjust your system equalisation to reduce the In wall loudspeaker lower frequency content to compensate for this Electrical connection types available on the Amina In wall In Ceiling Panel Loudspeaker The Amina Plaster In Wall In Ceiling Loudspeaker is fitted with a short length of cable terminated with BUTT splice crimp connectors for ultra reliable long term security of ope
11. he mid point between two panels and 0 6m douun i e standing height in a room with a 2 4m high ceiling will be 6dB lower than when measured directly under the panel When measured at a distance of 1 1m down i e sitting height this figure changes to just 3 5dB Therefore the higher your ceiling the more even S PL coverage will be obtained below it As a rule of thumb in wall mount applications panels positioned every 8m will provide less than 3 5dB SPL reduction measured at the mid point between panels and at least 1 1m away from the wall compared with a measurement taken directly in front of the panel and 1 1m away The measured S PL in the centre of the space compared to the perimeter will depend on the width of the room and the amount of reflective surfaces in the space Xx z X x 60m X X X X x x It gt i 20m Multipurpose Exhibition Restaurant Conference UJorship Hall X Speaker positions X Speaker positions LFi T units Shaded areas Sound will be x 8 units in total quieter but have excellent quality 09 If you have special requirements please contact your supplier or Amina for assistance Sound transmission in buildings and isolation techniques The actual sound energy generated from the rear of the Amina Plaster In wall or In Ceiling loudspeaker is equal to that generated from its front surface Superficially this might be thought of as being trapped within the wall or ceiling and to some extent this is t
12. naked eye As a consequence the long term reliability of this electromechanical structure is enhanced Removal If however a problem develops with this product or you simply want to remove the item to change Its location or move it to a new property then it is relatively straight forward to remove it from the wall or ceiling By tapping the wall or ceiling locate the In wall loudspeaker Take a decorator s scraper or sharp chisel Hold the tool at an acute angle to the wall or ceiling directly over the buried panel loudspeaker Carefully chip in to the plaster to expose a small area of the panel surface Now hold the scraper or chisel rtually parallel to the panel and working out to the product s edge gently ease the rest of the plaster coat away from the panel surface Don t worry if the panel surface receives marks or cuts during this process it should not however have holes all the way through the special honeycomb panel Once the product is plastered back in to its original or new location the new plaster will cover all these imperfections and the product s performance will not be unduly affected V Clear the surface plaster material from the surrounding plasterboard to expose all the joint tape covering the join between the panel and the plasterboard Remove the joint tape and if necessary use a sharp knife to cut directly along the panel perimeter to free any material that may be filling the gap between the
13. nal insulated butt splice accepts lt 2 6mm 14RUJG conductor diameters requires professional crimp tool Amina Technologies Ltd Cambridgeshire UK LFi2T state full part number when ordering Fire retardant glass filled ABS frame structure aluminium honeycomb core doped paper skin composite active panel Lugs suitable for 12 5mm thick Gypsum plaster board other thicknesses available on request Lugs for 1 2in and 5 8in board supplied as standard in USA and Canada 24dB octave high pass filter at 80Hz or higher e g Amina AF2 80 or equivalent 5 C 35 C 41 F 95 F 400mm x 300mm x 40mm 15 75in x 11 8in x L6in 1220g 2 71b 100V Line 20UJ 40UJ 70V Line 20UJ 40UJ 100Hz 15 6KHz 6dB 180 x 180 6dB 120 000mm 186in 87dB 1m IUJ measured with 2mm 0 08in multi finish plaster skim applied 103dB 1m 40UJ measured with 2mm 0 08in multi finish plaster skim applied Professional insulated butt splice accepts lt 2 6mm l4ALUG conductor diameters requires professional crimp tool Amina Technologies Ltd Cambridgeshire UK LFi4T state full part number when ordering Fire retardant glass filled ABS frame structure aluminium honeycomb core doped paper skin composite active panel Lugs suitable for 12 5mm thick Gypsum plaster board other thicknesses available on request Lugs for 1 2in and 5 8in board supplied as standard in USA and Canada 24dB octave high pass filter at 80Hz or higher
14. nse articulating the signal from your electronic drive system very accurately Take your system back to the bare minimum e g Amplifier source and speakers to eliminate distortions introduced by other components such as filters crossovers and equalisers When using your amplifier at maximum power levels or if the input of your power amplifier is being overloaded the signal level may be entering the clipping phase With some conventional speakers this may not be evident but with a diffuse source panel loudspeaker this is much more likely to be reproduced in the form of distortion Consider adjusting or upgrading your drive system Feedback occurs easily with open live microphone channels The disperse sound wave generated by a diffuse source panel loudspeaker helps generate a very even sound field in a given space This can help reduce problems with microphone feedback However if you are experiencing feedback with lower gain structures please check the signal equalisation The acoustics of your space and the reflectivity structures of the walls windows floors or ceilings may be creating acoustic standing waves within the room Adjusting your system equalisation may help reduce feedback dramatically 14 Further deta ls Maintenance Cleaning and Decoration Once the Amina Plaster In wall loudspeaker is plastered into a wall or ceiling it requires no physical maintenance Your wall or ceiling can be dusted or clean
15. ough the panel shake the loudspeaker gently If the rattle is evident whilst doing this check for foreign objects screws etc which may have fallen into the rear of the product and might be resting against the panel or frame Similarly check your wiring to the product Ensure that wires when the product is in the final location are not resting against the back of the vibrating panel Again with no audio signal applied lightly push the panel in and out at its centre Listen carefully for rubbing voice coils on the exciter This may indicate that the unit has been overdriven and subsequently damaged and needs to be returned to your supplier for repair If the problem persists consult your supplier for after sales service Sound output is very low Check the specification label on the back of the product Ensure that you are not using a low impedance signal to drivea line transformer based product With no audio signal applied lightly push the panel in and out at its centre Listen carefully for rubbing voice coils on the exciter This may indicate that the unit has been overdriven and subsequently damaged and needs to be returned to your supplier for repair Take your system back to the bare minimum e g amplifier source and speakers to eliminate faults in other components such as filters crossovers and equalisers Distortion at high volume levels Diffuse source panel loudspeakers of this type have an extremely fast respo
16. over the joint between panel perimeter and the plasterboard surround El Plaster Skim over the panel and the plasterboard filling all edges with plaster to create a smooth surface finish Allow plaster to dry fully before using the LFiT loudspeaker It is vital to make the skim coat 1 2mm Any coat thicker than 2mm can damage the speaker due to excess moisture El Plaster Dry wall application Decorate Dry wall application Use British Gypsum Easi fill filling repair plaster when applying the product within dry wall or pre skimmed pre finished walls Set the panel loudspeaker 1mm to 2mm behind the wall or ceiling front surface and skim the panel surface with Easi fill Please note that this product is designed to have a thin layer of plaster over its entire surface Its performance would be degraded if the product s surface is feathered into the surrounding dry wall at its edge and not covered completely British Gypsum Easi fill is a lightweight repairing plaster which once dry can be sanded down with minimal effort without scratching the surrounding harder plaster surface Apply a thin coat of PVA El Apply joint tape Decorate When your plasterwork is completely dry decorate the surface of the plaster with paint wallpaper fabric or other coatings as required 12 System Requirements 1 A high quality 100 or 70V line amplifier 2 This product must be fed with a signal that is high pass filt
17. panels edge and the surrounding plasterboard Use a narrow chisel or flat blade screw driver to remove the plaster or other filler material to expose the screws at each corner ofthe product Using a suitable screwdriver remove the four screws holding the product in position Ease the product from the wall or ceiling and disconnect the loudspeaker cable leaving the fixing lugs in their corner positions If the product needs repairing please return it to your supplier or Amina directly for a rapid turn around repair Once repaired the product can be re affixed into position following the installation steps detailed above Ensure new joint tape is used over the join between the panel and surrounding plasterboard and use Easi fill to plaster over the panel and immediate surrounding area Once dry sand down and use a wet sponge to create a flat surface level with the original surrounding plasterwork Alternatively if the product is to be moved to a new location or property you need to make good the opening in your plasterboard wall or ceiling Carefully remove the fixing lugs and replace them with simple flat rectangle wooden battens of similar size in the similar location to the previous lugs In the space left by the panel fit a sheet of plasterboard cut to size 400mm x 300mm attaching it with dry wall screws to the wooden corner battens Apply joint tape to the perimeter join and use Easi fill to plaster over the new plasterboard sec
18. ration Stip back 10mm of insulation on your loudspeaker cable Position the exposed conductor into the BUTT splice free end Use a proffessional crimp tool to secure this in place Always keep your cable polarity positive to positive consistent throughout the same installation Professional BUTT Splice Installation Fault Finding Guide lt is imperative that once the product is located into the wall or ceiling and prior to plastering over it is fully electrically and acoustically tested to avoid time consuming repairs or modifications at a later stage The following guide is designed to help in determining possible problem areas during these tests No Sound Output Check that your audio system has power is turned on and is working Check that all cables and connections are in tact and made in the proper manner Check for continuity over cable lengths Take your system back to the bare minimum e g amplifier source and speakers to eliminate faults in other components such as filters crossovers and equalisers If the problem persists consult your supplier for after sales service Distortion buzzing or rattling sounds at modest volume levels Try to identify the location of the buzz or rattle It may be caused by a loose screw or other mechanical fixing Check the assembly and ensure screws and fixings are tight If the rattle persists remove the panel from the wall and without any audio playing thr
19. rture Fasten the thicker section of the lug to the underside of the plasterboard using two dry wall screws secured through the front face of the plasterboard The thinner section of the plastic lug with the black foam tensioning tape applied needs to be located in the corner of your aperture The standard installation lug is designed to be used with 12 5mm thick plasterboard If your plasterboard is a different thickness please contact your supplier to obtain lugs to match Locate In Wall Loudspeaker Locate the In wall panel loudspeaker in the plasterboard aperture resting it against the four corner lugs Connect the loudspeaker to your speaker cable Secure the loudspeaker to the lugs using a drywall screw through the single hole in each corner of the loudspeaker s aluminium frame Ensure the front of the In wall loudspeaker is level with the front of your plasterboard surface by adjusting the tension on each of these four screws Ensure the whole assembly is rigid and not loose in any way Screw in and test panel loudspeaker Insert LFiT loudspeaker El Test panel loudspeaker Ensure the LFiT loudspeaker is electrically connected and acoustically tested fully before commencing plastering Apply PVA to panel Apply a thin coat of PVA adhesive water mix to the entire panel surface Use a 1 part PVA to 5 parts water mix and apply with a brush or foam roller El Apply joint tape Apply professional plasterboard jointing tape
20. rue In practice though some of this energy is transmitted through the rear of the wall and emerges at its opposite face or in the case of the ceiling emerges at the floor above Some will also travel along any internal cavity to emerge in connecting rooms The wall or ceiling construction will determine how much of this energy is transmitted and users installers need to consider carefully the impact this may have on neighbours and other building users before installation commences If the wall or ceiling consists of a plasterboard and studwork facing a solid concrete floor or block wall structure sound transmission to the other side of the wall is minimal due to the heavy mass of the concrete block structure in the centre If the construction in the case of a wall is simply plasterboard on both sides of wooden or metal stud work or in the case of a ceiling plasterboard faced joists with wood based floor boarding on the upper surface then sound transmission is going to be quite considerable due to the low mass and lack of absorptive material in between In these circumstances it is worth implementing additional sound isolation techniques within the wall or ceiling prior to installation of the Amina Plaster In Wall or In Ceiling panel loudspeaker At its most basic this may be as simple as adding sound adsorbing mineral Wool or wadding into the cavity directly behind the panel speaker Different grades of such materials exist ask your b
21. s are ideally suited for multi room entertainment and home cinema theatre reproduction in the home and for background to foreground entertainment systems and voice reinforcement eg paging retail corporate conferencing hotel restaurant worship and other leisure venues It is particularly useful in both home and commercial premises in wet areas e g swimming pool garden areas and bathroom ceilings where the plaster and any surface coatings serve to isolate the Amina In wall loudspeaker from the humid zone combining high quality sound reproduction and zero architectural visibility in humid environments whilst avoiding any long term corrosion issues Product Positioning and Quantity Requirements Residential Installation In residentialenvironments Amina Faster In wall or In Ceiling loudspeakers areideal for application within stud walls or plasterboard ceilings It can also be set into solid wall structures although this can involve considerable building work to create a suitable aperture to mount the product within The minimum depth of opening required in a stud wall ceiling or solid wall is 50mm from the wall or ceiling front surface There is no maximum depth requirement In the home the position and number of Amina Plaster In wall or In Ceiling loudspeakers is generally determined by the audio format being reproduced In a stereo listening situation two panels will be required in a 5 1 surround sound application 5 panels will
22. se of Ed Sub bass conventional point source directional loudspeakers is likely to yield poor results as the front set of Bedroom system set up Ceiling Mount 5 1 Ceiling Mount Stereo UJall Mount 5 1 Optional front amp rear positions 07 gurnn Pool ayout room Panels positioned in ceiling above pool area Wall Mount 5 1 amp sub The awkward room LiFi units plastered in wall TV screen in corner of room three speakers situated beyond the foot of the bed are not directionally aimed at the listener Alternatively applying the Amina diffuse source Plaster In wall or In Ceiling loudspeakers at the same positions will yield excellent results as their non directional qualities will place sound at the listening position even at this acute angle 08 Product Positioning and Quantity Requirements Commercial Installation The overriding factor in terms of best product positioning for multiple source installations is where possible to evenly space the number of panels across the given space This will create a very even S P L across the whole environment The direction orientation and height are much less relevant As a general rule of thumb in ceiling applications one Amina Plaster In Wall loudspeaker will be required every 7 to 10 metres i e covering an area of 49 to 100 square metres S PL levels measured at t
23. tenuation rate of at least 24dB octave Amina s own AF2 80 or AF2 150 active filters are ideal AF2 Highpass filter y 24dB Octave w O Effect of using an AF2 High Pass Filter Bass content of signals T Q z A 20 Zi eliminated from panel a W r f 5 WH 2 KHA 9 10 par yy E i a 0 ae 2 1 00 1000 10k 100k Frequency Once Plastered into position Please avoid pushing the wall or ceiling surface immediately in front of this In wall loudspeaker Excessive excursion whilst unlikely to damage the loudspeaker may lead to cracking of the plaster around the perimeter of the product Introduction The Amina Life Fidelity technology utilises a revolutionary diffuse source vibrating soundboard technique like that of a traditional acoustic musical instrument to reproduce high quality high clarity highly intelligible sound even in acoustically reflective areas where conventional cone point source loudspeaker systems generally under perform Don t worry these surface vibrations are absolutely tiny and cannot be seen with the naked eye but they will be detected by our more sensitive touch sense The majority of the sound energy generated by this diffuse source vibrating soundboard technique is incoherent or non phase related whereas the conventional point source loudspeaker generates a coherent or phase
24. tion and immediate surrounding area Once dry sand down and use a Wet sponge to create a flat surface level with the original surrounding plasterwork Re use the old fixing lugs to fit the product into the new location using the procedure detailed in the Installation section above If you need new fixing lugs please contact Amina for spares stating the thickness of plasterboard the unit is to be fitted to and your product serial number noted on the back of the product Product Specifications LFi2T Dimensions Weight Available Input Tappings Frequency Response Dispersion Angle HxV Active radiating area Sensitivity MAX SPL Electrical Connection Manufacturer Model Construction Installation kit provided Required external filtering Operating temperature range LFi4T Dimensions Weight Available Input Tappings Frequency Response Dispersion Angle HxV Active radiating area Sensitivity MAX SPL Electrical Connection Manufacturer Model Construction Fixings provided Required external filtering Operating temperature range 400mm x 300mm x 40mm 15 75in x 1l 8in x L6in 1060g 2 3Ib 100V Line 5UJ 10W 20W 70V Line 5UJ 10UJ 20UJ NOHz 15 6KHz 6dB 180 x 180 6dB 120 000mm lt 186in 85dB Im 1UW measured with 2mm 0 08in multi finish plaster skim applied 98dB Im 20UJ measured with 2mm 0 08in multi finish plaster skim applied Professio
25. uilders merchant for advice The quality and increased depth of this material will provide mproved isolation A more sophisticated approach is to create extra mass by forming a box work containment section in plasterboard or other such material behind the speaker and again fill the space between it and panel with mineral wool The mineral wool can touch the rear of the panel but should only be resting against it It should not be packed in tightly enough that it exerts force on Wooden frame work Plaster board front onto Typical stud wall Solid block wall with with Sound Insullation sound insulation Plaster board 12mm Wooden frame work attached to solid wall LFi T unit LFi T unit Sound Insullation Block wall Wood frame Plaster board Cut away view of ceiling ark Incorporating Sound Insulation e LFi T plastered into ceiling Box erected around speaker unit free wire through top e Insulation around and inside box e Secure to main beams Insullation 10 Installing your Amina life Fidelity In wall In Ceiling Panel Loudspeaker IMPORTANT INCORRECT SPEAKER INSTALLATION COULD RESULT IN SPEAKER FAILURE THIS MAY INVALIDATE YOUR WARRANTY PLEASE FOLLOW QUR INSTRUCTIONS CAREFULLY Ng N N Pull cable Insulate cavity Create aperture Create aperture Using a sharp knife cut an aperture of dimensions 400mm x 30
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