CMS50 User Manual
Contents
1. 3i 3 5 Speaker assembly with C Ring and Tile bridge 10 If the speaker requires additional support an optional Tile bridge is also available for use in conjunction with the C Ring This is assembled as shown in Figure 3j The Tile Bridge is attached to the C ring and the tile bridge supports placed either on the side railings or inside the railings depending on the size of the panel Slide the speaker assembly through the hole Figure 3j and tighten the dog tag screws until a firm grip is achieved Figure 3k Figure 3k 3 6 Speaker assembly with Plaster Mud Ring An Optional Plaster ring can be used if a conventional ceiling tile is not being used The wings on the plaster ring are attached to the building structure via the holes provided Figure 31 T The dimensions can be seen in Figure 31 The plaster is applied over the bracket 0215 _ x V _ 200 _ 300 Figure 3I Important Connect a safety cable to the rear of the speaker can NOTE the installation of this product must be carried out in conformity with local building codes and standards If necessary consult your local safety standards officer before installing any product Alternatively check any laws or bylaws Tannoy will not be held responsible for any damages caused by the improper installation of loudspeaker 4 Polarity Checking It is most important to check the polarity of the wiring A simple method of doing this without a pulse based po2. packed in pairs and any additional optional extras will be provided in separate packaging These options include C Ring Tile Bridge and Plaster Ring 2 1 CMS50 ICT Product Speaker Grill Wiring Cover Back Can Speaker Baffle C Ring optional Plaster Ring optional 3 Installation Instructions 3 1 Cut Out The cut out size required is 210mm 3 2 Connections The CMS50 ICT is provided with a plugable European type connector which is located on the back of the speaker can under the wiring cover as shown in Figure 3a below This consists of a plug and socket The plug can be removed from the socket Figure 3b for wiring Figure 3a Figure 3b To cable is inserted into the hole on the side of the plug and the screw is tightened to secure the cable in the plug The plug is wired to the amplifier such that the connections are as follows Pin 1 is Positive Pin 2 is Negative For additional speakers pin 3 and 4 are in parallel with pins 1 and 2 where Pin 3 is Negative Pin 4 is Positive Before connecting the speaker ensure the wiring cover and cable clamp on the back of the can are open as shown in Figure 3c Connect the wired plug into the socket Figure 3c Once the plug has been connected close the wiring cover and tighten both screws on the cable clamp in order to secure the cables in place as shown in Figure 3d below Figure 3d If conduit has to be installed then a conduit squeeze con
3. TANNOY CMSSOICT amp CMSSOT ICT USER MANUAL HOLE CUT OUT SIZE 210mm CONTENTS 1 2 1 3 1 3 2 3 3 3 4 3 5 10 11 12 13 Introduction Unpacking CMS50 ICT CMSSOT ICT The Product The C ring The Tile Bridge and C ring The Plaster Mud Ring Installation Instructions Hole Cut Out Connections Installation Speaker Assembly with C ring Speaker Assembly with Tile Bridge and C ring Polarity Checking Amplification and Power Selection Low Impedance Mode Voltage and Power Selection Distributed Line Operation Equalisation Dimensions Performance Data Technical Specifications CMS60 ICT Recommended Service Parts amp Accessories Warranty Declaration of Conformity 1 Introduction Thank You for purchasing Tannoy CMS50 ICT Ceiling Monitor System The Tannoy CMS50 ICT Ceiling Monitor System is suited for high level music and speech reinforcement applications requiring exceptional sonic quality with uncompromised reliability Achieving fast simple and cost effective installation in new and existing buildings this versatile design has addressed the two most common failures of background music and sound reinforcement systems which are firstly the tweeter and secondly the crossover With the revolutionary design of the ICT drive unit neither of the above criteria applies assuring you years of trouble free use ICT or Inductive Coupling Technology utilises a wireless electromagnetic
4. ed by a 5 year warranty from the date of manufacture subject to the absence of misuse overload or accidental damage Claims will not be considered is the serial number has been altered or removed Work under warranty should only be carried out by a Tannoy Professional dealer or service agent This warranty in no way affects your statutory rights For further information please contact your dealer or distributor in your country If you cannot locate your distributor please contact Customer Services Tannoy Ltd at the address given below Customer Services Tannoy Ltd Rosehall Industrial Estate Coatbridge Strathclyde ML5 4TF Scotland Telephone 01236 420199 National 44 1236 420199 International Fax 01236 428230 National 44 1236 428230 International e mail prosales tannoy com DO NOT SHIP ANY PRODUCT TO TANNOY WITHOUT PREVIOUS AUTHORISATION Our policy commits us to incorporating improvements to our products through continuous research and development Please confirm current specifications for critical applications with your supplier 17 TANNOY The following apparatus have been designed in Great Britain and conform s to the protection requirements of the European Electromagnetic Compatibility Standards and Directives relevant to Domestic Electrical Equipment The apparatus is designed and constructed such that electromagnetic disturbances generated do not exceed levels allowing radio and telecommunications equipmen
5. h THP 30 Transformer Half space 107 dB 8Q Anechoic 110 dB 8Q Half space Nominal 6 ohm Minimum 4 ohm 3 52 4 44 3 40 10 30 10 81 11 95 2 25 2 78 2 19 10 73 12 06 15 67 1 x 5 130mm full range ICT Point Source 4 21 litres vented with integral steel back can White CMS50 ICT 2 6kg 5lbs 130z CMS50T ICT 3 1kg 6lbs 140z Can height 187mm 204mm including tie back ring Baffle Diameter 240mm Back can diameter 208mm 210mm C Ring optional Tile Bridge optional Plaster Ring optional NOTES 1 Average over stated bandwidth Measured at 1m on axis in an anechoic chamber 2 Long term power handling capacity as defined in EIA standard RS 426A 3 Unweighted pink noise input measured at 1m Tannoy operates a policy of continuous research and development The introduction of new materials or manufacturing methods will always equal or exceed the published specifications which Tannoy reserve the right to alter without prior notice Please verify the latest specifications when dealing with critical applications 11 CMS50 ICT Recommended Service Parts 8 Accessories Part Number Description 7900 0571 Driver Kit 5 ICT Type 1214 8001 1840 CMS50 ICT Loudspeaker 8001 1920 CMS50 ICT C Ring 8000 1910 CMS50 ICT Tile Bridge 8000 1900 CMS50 ICT Plaster Ring 12 Warranty No maintenance of the CMS50 ICT loudspeaker is necessary All Tannoy professional loudspeaker products are cover
6. larity checker is as follows Connect two wires to the and terminals of a PP3 battery Apply the wire which is connected to the terminal of the battery to the speaker cable leg which you believe to be connected to the red speaker terminal and likewise the leg of the battery to the black speaker terminal If you have wired it correctly the LF drive unit will move forward indicating the wiring is correct All that remains now is to connect the speaker lead to the terminal on the amplifier and the lead to the terminal on the amplifier If however the LF driver moves backwards the input connections need to be inverted If problems are encountered inspect the cable wiring in the first instance It should also be noted that different amplifier manufacturers utilise different pin configurations and polarity conventions If you are using amplifiers from more than one manufacturer check the polarity at the amplifiers as well as the loudspeakers 5 Amplification amp Power Selection As with all professional loudspeaker systems the power handling is a function of voice coil thermal capacity Care should be taken to avoid running the amplifier into clip clipping is the end result of overdriving any amplifier Damage to the loudspeaker will be sustained if the amplifier is driven into clip for any extended period of time Headroom of at least 3 dB should be allowed When evaluating an amplifier it is important
7. n to compensate for difficult acoustic environments Excess equalisation can reduce system headroom and introduce phase distortion resulting in greater problems than it cures If equalisation is required then it should be applied gently and smoothly Violent equalisation will be detrimental to the overall sound quality If the loudspeakers were being used consistently at high levels it would be beneficial to introduce a high pass filter at 50Hz to protect the loudspeaker from any unnecessary subsonic frequencies 8 Dimensions 14 9 Performance Data 120 105 90 a me 75 60 45 50 500 1 000 5 000 10 000 50 000 Frequency Frequency Response 18 15 12 0 E 9 O 6 3 o 2 10 100 1 000 10 00 0 000 Frequency Impedance Response Beamwidth vs Frequency 360 330 300 270 240 a 210 E 180 A 150 120 90 60 30 0 100 1000 10000 Frequency Hz 10 Technical Specifications 15 16 System Type Frequency Response 1 3dB Power Handling 2 Sensitivity 1 2 83 volt 1m Maximum SPL 3 1m Impedance DI Averaged 500Hz 1kHz 2kHz 4kHz 8kHz 16kHz Q Averaged 500Hz 1kHz 2kHz 4kHz 8kHz 16kHz Driver Complement Enclosure Finish System Weight in back can Dimensions Hole cut out Accessories Vented full range ICT loudspeaker system 85 22kHz 50 watt 90 dB 105 dB with THP 30 Transformer Anechoic 108 dB wit
8. nector can be used instead of the cable clamp To remove the cable clamp simple unscrew the threaded washer under the wiring cover which holds the cable clamp in place and replace with the conduit squeeze connector The CMS50 ICT will accept a squeeze connecter with a thread size of up to 21mm 3 4 CABLE CLAMP CONDUIT CONDUIT SQUEEZE CONNECTOR A Figure 3e 3 3 Installation The CMS50 ICT is supplied as a complete product ready for installation An optional C Ring Tile Bridge and Plaster Ring are available if required The CMS50 ICT has been designed for ease of installation To install the speaker connect the speaker as described in the section 3 2 The speaker has 3 tags Figure 3f that hold the speaker in place Ensure these tags are flat against the can before installing into the ceiling Tags for fastening speaker Screws for tightening tags Figure 3f Slide the speaker through the 210mm hole as shown in figure 3g and tighten the outer screws on the front baffle Tighten these screws until a secure grip is established as shown in Figure 3h Figure 3g Figure 3h 3 4 Speaker assembly with C ring To spread the weight of the 3 dog tags an optional C ring is available for the CMS50 ICT To install the speaker in the ceiling place the C ring behind the tile Slide the speaker assembly through the hole Figure 3h and tighten the dog tag screws until a firm grip is achieved Figure 3i Figure
9. power in Watts at all speakers and select and amplifier with a rating equal to or exceeding the total power in Watts All of the transformer primaries should be connected in parallel to the output of this amplifier If for example you select the 7 5 watt transformer tap it means that at full rated amplifier output the speaker will receive the full 7 5 watts If the amplifier gain is reduced each speaker will receive a proportional amount of power maintaining the overall system balance It is recommended that a generous power safety margin 3dB of headroom be left so that the system does not have to operate continuously at its full rated output power gt Figure 4b In order to comply with relevant fire safety regulations i e BS 5839 1998 it is required that in the event of fire that failure of the circuit to which the loudspeaker is connected does not occur before evacuation of the building is complete Suitable measures include use of terminal blocks for connection to primary with a melting point of not less than 650 C for example constructed from ceramic materials use of terminal blocks of a lower melting point but protected with thermal insulation use of terminal blocks such that on melting an open circuit or a short circuit does not occur 13 7 Equalisation The CMS50 ICT is designed to need no equalisation or correction to overcome system limitations As a result it will only need equalisatio
10. t and other apparatus to operate as intended and the apparatus has an adequate level of intrinsic immunity to electromagnetic disturbance to enable operation as specified and intended 13 Declaration of Conformity Details of the Apparatus Tannoy Ceiling Loudspeaker Model Number CMS50 ICT Associated Technical File EMC CMS50 ICT Applicable Standards EN 50081 1 Emission EN 50082 1 Immunity Electrical Safety EN 60065 Signed Position Engineering Director Professional Products Tannoy Professional Date 10 01 2005 For Tannoy Ltd 18 19 TANNOY O HEAR BELIEVE Tannoy Loudspeakers are manufactured in Great Britain by Tannoy Ltd Rosehall Industrial Estate Coatbridge Strathclyde ML5 4TF SCOTLAND Telephone 44 0 1236 420199 Fax 44 0 1236 428230 Tannoy North America Inc Suite 1 335 Gage Avenue Kitchener Ontario CANADA N2M 5E1 Telephone 519 745 1158 Fax 519 745 2364 Issue 2 Part No 6481 0429 GH Jan 20th 2005 20
11. to take into account its behaviour under low impedance load conditions A loudspeaker system is highly reactive and with transient signals it can require more current than the nominal impedance would indicate Generally higher power amplifier running free of distortion will do less damage to the loudspeaker than a lower power amplifier continually clipping It is also worth remembering that a high powered amplifier running at less than 90 of output power generally sounds a lot better than a lower power amplifier running at 100 An amplifier with insufficient drive capability will not allow the full performance of the loudspeaker to be realised It is important when using different manufacturers amplifiers in a single installation that they have very closely matched gains the variation should be less than 0 5dB This precaution is important to the overall system balance when only a single compressor limiter or active crossover is being used with multiple cabinets it is therefore recommended that the same amplifiers be used throughout 6 Voltage 8 Power Selection CMS50T ICT 12 When using 70 7V or 100V distributed line systems the transformer can be tapped at 30W 15W and 7 5W with an extra 3 75W tapping for 70 7V line systems A the tap are selected via a rotary switch as shown in Figure 4a and is located on the front of the unit behind the grille Figure 4b When the relevant voltage tappings have been selected add the individual
12. tweeter that does not require a crossover and cannot be burned out from heavy or abusive use The 1 aluminium high frequency dome has a deep drawn skirt that sits on the inside of the low frequency voice coil in the same magnetic gap The skirt is like a single shorted turn which is induced with high frequency information generated by the low frequency voice coil which is fed a full bandwidth signal The ICT dome is at the heart of our 5 ceiling transducer which utilises a moulded plastic cone and nitryl rubber surround to further enhance it s durability and long term reliability The ICT driver is housed in a rugged aluminium ceiling enclosure that has been optimally tuned to achieve maximum bass response and tonal balance The CMS50T ICT houses a Tannoy THP 30 multi tap transformer for distributed line operation The transformer provides high system sensitivity a wide bandwidth and dynamic range with very low insertion loss For critical Applications provision has been made for the CMS50T ICT to accept the THP 60 a GOW multi tap transformer 2 Unpacking Every Tannoy CMS50 ICT and accessory is carefully inspected before packing After unpacking please inspect your CMS50 ICT to make sure no damage has occurred in transit In the unlikely event of any damage would you please notify your dealer immediately and retain your shipping carton as your dealer may ask you to return the faulty unit to him for inspection The CMS50 ICT is
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