User Manual – v3.0
Contents
1. Spares amp Accessories ZS compact fullrange enclosure 151 5 9 x 470 18 5 x 192 7 6 9kg 90Hz 18KHz 91dB 1W im 90 H x 30 V rotatable 2 x 5 127mm LF MF cone drive units 1 25mm exit HF compression driver on plane wave manifold 200W RMS 400W Program 110dB continuous 116dB peak 8 ohms Uniphase Internal Passive 2 x Neutrik Speakon NL4MP 15mm 5 8 Finnish Birch plywood 4 x M6 threaded fittings Omnimount Powerdrive 2 x M10 threaded fixings YK i2h 2 x M8 threaded fixings YK i2 2 x 3 8 threaded fixings microphone stand Perforated steel Colours Weather Protection DU 501 replacement LF MF drive unit CD 1003 replacement HF drive unit RD 1003 replacement HF diaphragm WG i2 replacement diecast waveguide RG I2 replacement grille PX I2 passive circuitry YK i2 vertical hanging yoke YK i2h horizontal hanging yoke 13 i 2 User Manual www emacoustics co uk2. ACOUSTICS l 2 User Manual v3 0 SSS OC ee A a EM Acoustics Loudspeakers Building 74 Dunsfold Park Cranleigh Surrey GU6 8TB UK Phone 44 0 1483 266520 Fax 44 0 1483 275619 www emacoustics co uk Copyright EM Acoustics 2013 1 i 2 User Manual www emacoustics co uk CONTENTS Introduction Thank you Page 3 Unpacking Page 3 Declaration of Conformity Page 3 Product Overview Page 4 System Set up Safety Considerations Page 5 Cabling amp Amplifier selection Page 5 Processing Page 6 Mounting amp Rigging Options Stand Mounting Page 7 Ground Stacking Page 7 Rigging Hardware amp Accessories Page 8 Permanent Installations Page 8 i 2 Rigging Accessories Page 9 Maintenance Page 11 Warranty Page 12 Appendix A Technical Specifications Page 13 THIS MANUAL HAS BEEN UPDATED TO APPLY TO i 2 ENCLOSURES WITH SERIAL NUMBERS FROM i2200212 001 onwards 2 i 2 User Manual www emacoustics co uk ZS INTRODUCTION Thank you Thank you for purchasing the i 2 loudspeaker from EM Acoustics The i 2 has been carefully designed and rigorously tested to ensure years of flawless operation and unprecedented sonic quality Designed originally as a theatrical front fill loudspeaker the i 2 can also find applications from cafes and bars through to museums nightclub infills and themed attractions Please ensure that you read this manual carefully before use and that you keep it to hand should you nee
3. able usage in a wide variety of ways A microphone stand can be used to mount the enclosure in either vertical or horizontal formats whilst the four M6 t or PowerDrive mounting hardware Two points on the rear allow permanent installation with Omnimoun rigging accessories are also available for the i 2 the YK i2 vertical hanging yoke and the YK i2h horizontal hanging yoke Under no circumstances should the mounting points of one enclosure be used to suspend another enclosure below it EM Acoustics are in no way responsible for the failure of incorrectly rigged systems This information relates specifically to the rigging techniques for the i Series enclosures only If you are in any doubt about safe practices for rigging loudspeakers please contact your local EM Acoustics dealer who will be able to advise you Permanent Installations Any installation permanent or temporary must be securely attached to the structure of the building using chain steel wire or web straps that are certified and load rated for the loudspeaker system Consideration must be taken when determining the loading on the structure to include loudspeakers and rigging hardware and the appropriate safety factor can then be decided upon If you are in any doubt whatsoever please contact your EM Acoustics dealer who will be able to refer you to an experienced rigging company A reputable rigging organisation should also be able to advise on legislation regardin
4. d it for further reference Furthermore should you have any difficulties please do not hesitate in contacting your EM Acoustics dealer or email info emacoustics co uk for further assistance Unpacking Every EM Acoustics product is built to the highest standard and thoroughly tested before it leaves our factory After unpacking your loudspeaker please inspect it carefully for any signs of transit damage If such damage is found please notify the carrier at once to instigate a claim It is suggested that you retain all packaging for future re shipment DECLARATION OF CONFORMITY The products contained within this manual conform to the requirements of the EMC Directive 89 336 EEC amended by 92 31 EEC and to the requirements of the Low Voltage Directive 73 23 EEC amended by 93 68 EEC Standards Applied EMC Emission EN55103 1 1996 Immunity EN55103 2 1996 Electrical Safety EN60065 1993 RECYCLING This product and its packaging constitute the applicable product according to the WEEE directive E Please ensure that at the end of the working life of this product it is disposed of sensibly in accordance with local and national recycling regulations The packaging supplied with this product o is recyclable Please retain all packaging however if disposing of this packaging please ensure gee that you comply with local recycling regulations These products also all comply to the RoHS Directive 2002 95 EC 3 i 2 User Manual www emacoust
5. e guidelines below i 2 LF MF Drive Units 1 Using a 2 5mm Allen key remove the four countersunk machine screws that hold the front grille in place Lift the grille clear ensuring that you collect the four screws for reinstatement after service Using a 3mm Allen key remove the four socket head screws holding the drive unit Lift the drive unit out of the enclosure you may need a flat bladed screwdriver to lift the driver up and carefully disconnect the cables ensuring to collect the washers for future reinstatement To reinstate the driver simply reverse the above procedure Please observe the correct polarity red cable to positive terminal black cable to negative LF driver or brown cable to positive terminal blue cable to negative MF driver To re attach the grille place it in position and carefully ease the grille over the gasket attached to the woodwork Ensure that the gasket does not get caught as it will bunch up and stick to the grille Once the grille is firmly in position apply pressure to the ends by the mounting points and reinstate the four countersunk screws i 2 HF Drive Unit Remove the grille as above Using a 3mm Allen key remove the four socket head screws holding the drive unit Lift the waveguide out of the enclosure you may need a flat bladed screwdriver to lift the waveguide up and carefully disconnect the cables ensuring to collect the washers for future reinstatement To remove the pla
6. e Length 4 ohms 8 ohms 16 ohms 1 0mm 11m 22m 44m 1 5mm 17m 34m 68m 2 0mm 22m 44m 88m 2 5mm 29m 58m 116m 4 0mm 44m 88m 176m 6 0mm 66m 132m 264m 5 i 2 User Manual www emacoustics co uk ZS Processing The i 2 incorporates a three way passive crossover network to split the full range input signal to the relevant drive units Under no circumstances should you attempt to disconnect or bypass this network doing so is likely to damage your loudspeaker Like all EM Acoustics products the i 2 requires no external EQ to function as intended Depending on the nature of your desired application you may well wish to use a system processor for delays and room EQ It is also recommended for higher SPL applications that a high pass filter should be used with a minimum of 24dB Octave Butterworth slope around or above 90Hz This will prevent unwanted low frequencies which the i 2 is not capable of reproducing from forcing the drive units to over travel and will avoid damage If you are in any doubt whatsoever over correct processor settings please do not hesitate to contact your EM Acoustics representative or contact us at the factory directly 6 i 2 User Manual www emacoustics co uk MOUNTING amp RIGGING OPTIONS Stand Mounting The i 2 has two 3 8 threaded fixings for microphone stand mounting When mounting in this way please consider the following Ensure your stand height is locked off and the tripod le
7. g safety factors for suspended systems of this type 8 i 2 User Manual www emacoustics co uk ZS Attachment of the YK i2 vertical hanging yoke Using a flat blade screwdriver remove the two M8 countersunk bolts on the flat side of the enclosure marked A in Fig 1 Position the YK i2 mounting plate over the two holes reinstate the bolts and tighten securely There are three hole positions for an attachment device in the top of the yoke marked B in Fig 2 For permanent installation these can be used to fix the YK i2 directly to a surface For temporary installation a standard hook clamp is recommended Attach this clamp or other suitable device using an M10 bolt nut and washer set The i 2 can now be securely suspended and oriented as required By rotating the YK i2 through 180 degrees it can be used to allow down tilt or up tilt when using a microphone stand Fig 3 A Fig 1 Fig 2 9 i 2 User Manual www emacoustics co uk Attachment of the YK i2h horizontal hanging yoke With the i 2 lying on its side remove the two countersunk M10 fixings in the ends of the enclosure marked A in Fig 1 and put them in a safe place Position the YK i2h over the enclosure insert the knurled plastic knobs into the holes and tighten securely There are three possible positions for an attachment device only the central point marked B should ever be used by itself If using the end points marked C both
8. gs are positioned so as to be stable Check the weight loading of your stands before attempting to mount the loudspeaker Do not stack a second loudspeaker on top of the stand mounted one Ensure cables are run so as to leave enough slack to enable neat wiring and thus reduce the risk of the speaker being pulled over Loose cables should be covered or taped down wherever possible to reduce trip hazards If stands are being used outdoors it may be necessary to add ballast to the base of the stand to prevent it toppling over Ground Stacking Ensure that the floor or stage surface can withstand the weight of the system Wherever possible avoid high stacks and use ratchet straps to secure loudspeakers together Please also remember that vibrations from subwoofer systems can shake other loudspeakers out of place which may present a toppling hazard The use of ratchet straps and non slip material is recommended to prevent this WARNING The overhead suspension of loudspeakers is a very serious issue with potentially lethal consequences should anything go wrong Rigging should only be carried out by experienced personnel following safe working practice Should you be in any doubt whatsoever please contact your local dealer who will be able to refer you to a suitable rigging company ZS 7 i 2 User Manual www emacoustics co uk Rigging Hardware amp Accessories The i 2 loudspeaker has a range of integral rigging hardware to en
9. ics co uk ZS PRODUCT OVERVIEW 10 470 BOTTOM TOP LEFT FRONT RIGHT The i 2 is an ultra compact fullrange loudspeaker designed specifically for applications where controlled accurate dispersion is required The use of a 4 x 1 exit planar wave manifold for HF allows the i 2 to produce a coverage pattern of 90 x 30 which can be rotated to allow use in any orientation The angled side surface of the enclosure allows for subtle up or down angle when used on a stage edge or up against a ceiling Innovative three way passive crossover technology creates perfect time alignment between the three components and avoids the interference lobing normally encountered with such designs As with all EM Acoustics products no external program or equalisation is required for the i 2 to function correctly However for higher SPL applications a high pass filter set above 75Hz is recommended to prevent over excursion of the low frequency drive units A variety of flexible rigging and mounting options are available for the i 2 to ensure the widest variety in applications See later in this manual for more information 4 i 2 User Manual www emacoustics co uk SYSTEM SET UP Safety Considerations Loudspeaker systems are potentially dangerous objects if used incorrectly Please ensure that you read this section fully and contact EM Acoustics or your local dealer should you be in any doubt over correct operation proced
10. nar wave driver from the waveguide use a 3mm Allen key in the socket head bolts through the waveguide and hold the M4 Nyloc nuts at the rear with a 7mm spanner To reinstate the driver simply reverse the above procedure Please observe the correct polarity white cable to positive terminal yellow cable to negative Follow the procedure outlined above to replace the front grille 11 i 2 User Manual www emacoustics co uk WARRANTY Limited Warranty This EM Acoustics loudspeaker product is warranted to the original end user purchaser and all subsequent owners for a period of three years from the original date of purchase Warranty Coverage This warranty covers defects in materials and workmanship It does not include e Damage or failure caused by accident misuse neglect abuse or modification by any person other than an authorised EM Acoustics representative e Damage or failure caused by operating the loudspeaker product contrary to the instructions contained within this manual e Damage caused during shipment e Claims based on any misrepresentation by the seller e Products which contain anything other than the original components or EM Acoustics factory supplied spare parts e Products on which the serial number has been removed altered or defaced Returning your EM Acoustics loudspeaker Should your EM Acoustics loudspeaker develop a fault please return it freight prepaid in its original packaging along wi
11. should be used to avoid unnecessary strain on the yoke C A Fig 1 t or Powerdrive Installation Brackets Attachment of Omnimoun It is strongly suggested that you position your loudspeakers then mark amp drill the holes in the mounting walls before you attach the bracket to the loudspeaker as it is much easier to check positioning and fit of the holes without the weight of the loudspeaker t Series 30 or PowerDrive Series 75 products The i 2 is designed to work with OmniMoun Lie the enclosure on its front and remove the four M6 countersunk points on the rear of the enclosure Position the loudspeaker side of the bracket as required reinstate the bolts and retighten The bracket and i 2 can now be mounted using the holes you have pre drilled Safety Considerations When utilising any suspension method a secondary safety must be used When using installation brackets or the YK i2 a forged shoulder M10 eyebolt can be fitted into one of the points on the end of the enclosure and this can be used to attach a safety For use with the YK i2h use an M8 forged shoulder eyebolt in one of the M8 points on the sides 10 aw E M i 2 User Manual ANYA www emacoustics co uk MAINTENANCE Your EM Acoustics loudspeakers have been rigorously tested before they leave our factory to ensure that they give you a lifetime of flawless operation Should any of your drive units fail and need replacing please follow th
12. th proof of purchase to your local dealer or to EM Acoustics Returns Department Building 74 Dunsfold Park Cranleigh Surrey GU6 8TB UK including a description of the suspected fault Serial numbers must be quoted in all correspondence relating to the claim EM Acoustics or its representatives are in no way liable for any loss or damage in transit and hence it is recommended that the sender insure the shipment EM Acoustics will pay for return freight should the repair be covered under warranty EM Acoustics liability is to the replacement or repair at our discretion of any defective components and as such are not liable for any incidental and consequential damages including without limitation injury to persons damage to property or loss of use This warranty is exclusive and no other warranty is expressed or implied This warranty is also in addition to and in no way detracts from your statutory rights as a consumer 12 i 2 User Manual www emacoustics co uk ZS APPENDIX A TECHNICAL SPECIFICATIONS EM Acoustics operates a continuous process of research and development and as such reserves the right to alter specifications without notice Enclosure Type Dimensions HxWxD mm ins Net Weight Frequency Response 3dB Sensitivity Dispersion Drive Units Power Handling Maximum SPL Nominal Impedance Crossover Connectors Enclosure Rigging Suspension Grille Options
13. ures Professional loudspeaker systems are capable of producing damage inducing sound pressure levels and hence care should be taken when setting your system up particularly when it comes to loudspeaker placement within a venue Damage to the ear can result from levels above 90dB under prolonged exposure Cabling and Amplifier Selection The i 2 is designed to be used with professional power amplifiers providing the following power outputs i 2 400W channel into eight ohms It is good practice to use an amplifier power equal to the program power rating of the loudspeaker so as to retain sufficient headroom and good dynamic range Care should be taken during operation to avoid amplifier clipping as this can cause serious damage to your loudspeakers If in doubt please contact your dealer who will be happy to assist you in correct amplifier choice and setup A small power amplifier working too hard is more likely to damage a loudspeaker than a large power amplifier working within its operating range Cabling i 2 loudspeakers are supplied with Neutrik Speakon NL4 connectors wired pin 1 1 The 2 2 pins are connected to allow link through with four core cables It is recommended that the resistance of your cable is less than one tenth of the nominal system impedance Given below are the recommended maximum cable lengths for different cross sections and impedances Conductor Cross Sectional Area Maximum Recommended Cabl
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