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ESD Ceiling Speaker - Installing the ESD Ceiling Speaker

 

 

4.3 

Determining the Number of Speakers Needed and their 

Location  

When installed in a room with a standard ceiling height of 2.7m (8.8 feet), the 
optimal distance between the speakers is about 10 meters. The speaker should be 
installed lengthwise relative to the shape of the room. The example in 

Figure 4

 

shows the ESD Ceiling Speaker installed in a 10m x 5m room. A 10m x 5m room 
size requires only one ESD speaker for full room coverage rather than four 
standard ceiling speakers. 

 

Figure 4: Speaker Location in a Room—using ESD Speakers vs. using Standard Ceiling Speakers 

To achieve optimum sound quality and ESD (Equal Sound Dispersion): 

 

Select the appropriate output from the amplifier to use with the speaker 
(either stereo or mono) 

 

If the size of the room only requires a single speaker, we recommend using the 
mono/stereo speaker model for speech and music (see 

Figure 5

Summary of Contents for SPK-C812

Page 1: ...KRAMER ELECTRONICS LTD USER MANUAL MODELS SPK C812 SPK C813 SPK C814 SPK C815 SPK C816 SPK C817 SPK C818 SPK C819 SPK C820 ESD Complete K overage Ceiling Speaker P N 2900 300119 Rev 1 ...

Page 2: ...Speaker 11 5 Technical Specifications 14 Figures Figure 1 Tile Size ESD Ceiling Speaker that fits into the ceiling 4 Figure 2 ESD Ceiling Speaker 5 Figure 3 ESD Ceiling Speaker Input Pinout 6 Figure 4 Speaker Location in a Room using ESD Speakers vs using Standard Ceiling Speakers 7 Figure 5 Connecting One Stereo Speaker 8 Figure 6 Connecting Two Mono Speakers 8 Figure 7 Fitting the Tile Size Spea...

Page 3: ...tenders and Repeaters GROUP 6 Specialty AV Products GROUP 7 Scan Converters and Scalers GROUP 8 Cables and Connectors GROUP 9 Room Connectivity GROUP 10 Accessories and Rack Adapters and GROUP 11 Sierra Products Congratulations on purchasing your Kramer ESD Equal Sound Dispersion Ceiling Speaker which is ideal for overhead distributed audio for professional applications music and speech and educat...

Page 4: ... date user manuals application programs and to check if firmware upgrades are available where appropriate 2 1 Achieving the Best Performance To achieve the best performance Use only good quality connection cables to avoid interference deterioration in signal quality due to poor matching and elevated noise levels often associated with low quality cables Avoid interference from neighboring electrica...

Page 5: ...eaker features Complete K overage ESD a patent pending design with 4 pivoting tweeters that direct the sound based on the room environment for equal sound dispersion ESD Wide 180 sound dispersion One Kramer ESD speaker that replaces multiple standard speakers for quick and easy installation Excellent bass response that is optimized for music and high quality voice reproduction 4 pivoting tweeters ...

Page 6: ...e size stereo SPK C814 Polypropylene woofer surrounded with rubber 2 left and 2 right silk dome tweeters No bass reflex Professional half tile size mono SPK C815 Polypropylene woofer surrounded with rubber 4 silk dome tweeters No bass reflex Educational tile size stereo SPK C816 Paper cone woofer surrounded with rubber 2 left and 2 right Ti pivoting tweeters installer adjusted Bass reflex Educatio...

Page 7: ...eaker Tile Base Half tile size or tile size 2 Speaker Steel Enclosure Shallow fireproof enclosure 3 INPUT Terminal Block Connector Connect to the audio source see Section 4 2 4 Anchor Ring Secure the speaker to the ceiling anchoring point 5 Tweeters 4 Pivoting titanium or silk 6 Woofer Polypropylene or paper surrounded by rubber 7 Bass Port For a bass reflex effect Top View Underside View ...

Page 8: ...ee Section 4 6 4 1 Choosing the Best Location Ideally locate the speakers above the main listening area Before doing so be sure that The desired location is free of obstructions such as electrical piping AC ducts or water lines and so on There is enough space behind the mounting surface for the speaker The rear side of the speaker is not blocked by wall studs or other objects 4 2 The Input Pinout ...

Page 9: ...ows the ESD Ceiling Speaker installed in a 10m x 5m room A 10m x 5m room size requires only one ESD speaker for full room coverage rather than four standard ceiling speakers Figure 4 Speaker Location in a Room using ESD Speakers vs using Standard Ceiling Speakers To achieve optimum sound quality and ESD Equal Sound Dispersion Select the appropriate output from the amplifier to use with the speaker...

Page 10: ...n one speaker use two mono speaker models Connect the speakers to the left and right connectors of the amplifier respectively see Figure 6 Figure 5 Connecting One Stereo Speaker Figure 6 Connecting Two Mono Speakers OUTPUT INPUT Amplifier Speaker 8Ω OUTPUT INPUT INPUT Amplifier Speaker Speaker 8Ω 8Ω ...

Page 11: ...ls see Figure 3 from the adjacent ceiling tile opening 5 Place the speaker temporarily in place and test the audio quality 6 If you are satisfied disconnect the amplifier and remove the speaker from the ceiling If not change the position of the tweeters and check the audio quality again until you are happy with the results 7 Fit the speaker grille over the speaker underside and tighten with screws...

Page 12: ...e Speaker 2 Secure the speaker by connecting the speaker support ring to an independent secure ceiling anchor point see Figure 8 as appropriate The anchor prevents the speaker from falling if the tile itself comes out or falls apart Figure 8 Securing the Speaker to a Ceiling Anchor Point ...

Page 13: ... When installing the half tile size model 1 Remove the ceiling tile 2 Cut the ceiling tile in half to 30x60cm 3 Place the ceiling mounting bracket supplied with the half tile unit only between the ceiling rails as illustrated in Figure 9 Figure 9 Placing the Ceiling Mounting Bracket 4 Drop the half tile size speaker in the appropriate opening so it is supported by the ceiling rails and the ceiling...

Page 14: ...eaker 5 Replace half of the ceiling tile see Figure 11 Figure 11 Replacing the Ceiling Tile 6 Secure the speaker by connecting the speaker support ring to an independent secure ceiling anchor point see Figure 8 The anchor prevents the speaker from falling if the tile itself comes out or falls apart ...

Page 15: ...SD Ceiling Speaker Installing the ESD Ceiling Speaker 13 Figure 12 shows an example of how the ESD Ceiling Speaker can be installed in a boardroom setup Figure 12 ESD Ceiling Speaker in a Boardroom Setup ...

Page 16: ...x tile size ACCESSORIES Ceiling mounting bracket supplied with half tile size units only Specifications are subject to change without notice at http www kramerelectronics com Technical Specifications of the EDU ESD Ceiling Speakers INPUT POWER 40W RMS max 80 W Continuous load 40W 24Hr NOMINAL SENSITIVITY 90dB SPL 1m CROSSOVER FREQUENCY 2kHz MEAN SPL 90dB 1dB 1W 1m FREQUENCY RANGE Nominal 150Hz 20k...

Page 17: ...acts of nature ii Product modification orfailure to follow instructions supplied withtheproduct iii Repair orattemptedrepairby anyone not authorized by Kramer iv Any shipment of theproduct claims must bepresentedtothe carrier v Removal orinstallation of theproduct vi Any other cause which does not relate to aproduct defect vii Cartons equipment enclosures cables or accessories used inconjunction w...

Page 18: ...tributors visit our Web site where updates to this user manual may be found We welcome your questions comments and feedback Web site E mail www kramerelectronics com info kramerel com SAFETY WARNING Disconnect the unit from the power supply before opening and servicing ...

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