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SPK-C612 - Installing the SPK-C612 Closed-back Ceiling Speakers 

 

Installing the SPK-C612 Closed-back Ceiling 
Speakers 

This section explains how to install the 

SPK-C612

, that is: 

 

Choosing the best place to locate your speakers (see 

Section  5.1

 

Cutting the ceiling tile (see 

Section  5.2

 

Mounting the Speakers (see 

Section  5.3

 

Painting the speakers (see 

Section  5.4

5.1 

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 speakers 

 

The rear side of the speaker is not blocked by wall studs or other objects 

5.2 

Cutting the Ceiling Tile 

To cut the ceiling tile, do the following: 

1.  Remove the circle in the supplied template. 

Keep this template for later use as a mask, as you may want to paint the speakers (see 

Section  5.4

2.  Mark the opening in the correct location by tracing the hole in the template. 

3.  Cut out the hole according to the template or with a circular cutter set to the 

appropriate cutout size. 

Initially, you can cut a smaller area inside the marked hole just to be sure that the 
space above the speakers is clear 

4.  Route the wiring from the amplifier to the speakers’ cutout holes, taking care 

not to place them next to electrical wires or at least at a distance of about 

two feet from an AC line. 

Summary of Contents for SPK-C612

Page 1: ...KRAMER ELECTRONICS LTD USER MANUAL MODEL SPK C612 Closed back Ceiling Speakers P N 2900 300187 Rev 1 ...

Page 2: ...ng the Best Location 6 5 2 Cutting the Ceiling Tile 6 5 3 Mounting the Speakers 7 5 4 Painting the Speaker 10 6 Technical Specifications 11 Figures UFigure 1 SPK C612 in a Boardroom SetupU 3 UFigure 2 SPK C612 Closed back Ceiling SpeakerU 4 UFigure 3 SPK C612 Schematic DiagramU 5 UFigure 4 Mounting the SPK C612U 7 UFigure 5 Plugging and Securing the CableU 8 UFigure 6 Tighten the Mounting TabsU 9 ...

Page 3: ...rs GROUP 3 Control Systems GROUP 4 Format Standards Converters GROUP 5 Range Extenders 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 SPK C612 Closed back Ceiling Speakers which are ideal for the follo...

Page 4: ... good quality connection cables such as the Kramer BC 2S to avoid interference deterioration in signal quality due to poor matching and elevated noise levels often associated with low quality cables Do not secure the cables in tight bundles or roll the slack into tight coils Avoid interference from neighboring electrical appliances that may adversely influence signal quality Position your Kramer S...

Page 5: ...ted on the ceiling as well as via a ceiling mounting kit used to safely secure the speakers to the ceiling The SPK C612 speakers feature a diameter of 6 5 a resistance of 8Ω and a closed back depth of 7 Figure 1 shows an example of how the SPK C612 can be installed in a boardroom setup Figure 1 SPK C612 in a Boardroom Setup ...

Page 6: ...ling Speaker The following table defines the SPK C612 hardware items per speaker pair for each model in the series Description A pair of ceiling speakers one shown Two grilles one shown Cutout template This table defines the ceiling mounting kit items Four support ring screws Two ceiling support rings C ring one shown Two pairs of tile rails one of a pair shown ...

Page 7: ...the T grid When mounting onto the ceiling tiles use both supports When mounting onto a sheetrock ceiling the C ring alone is used to reinforce the ceiling material Be sure that the tiles can support the speaker Smaller sized tiles or fiberglass type tiles cannot support the weight of the speakers When this is the case the speakers will need additional support Figure 3 shows a schematic diagram of ...

Page 8: ... the mounting surface for the speakers The rear side of the speaker is not blocked by wall studs or other objects 5 2 Cutting the Ceiling Tile To cut the ceiling tile do the following 1 Remove the circle in the supplied template Keep this template for later use as a mask as you may want to paint the speakers see Section 5 4 2 Mark the opening in the correct location by tracing the hole in the temp...

Page 9: ... their ends catch onto the T grid When mounting onto the ceiling tiles use both supports Be sure that the tiles can support the speaker Smaller sized tiles or fiberglass type tiles cannot support the weight of the speakers When this is the case the speakers will need additional support When mounting onto a sheetrock ceiling the C ring alone is used to reinforce the ceiling material 5 3 Mounting th...

Page 10: ...ct the speakers in the two following possible layouts Wiring in parallel connect the wire pair of the subsequent speaker to PIN 2 and PIN 3 When one input connector is removed subsequent speakers will remain connected see Figure 3 Daisy chaining connect the wire pair of the subsequent speaker to PIN 1 and PIN 4 When one input connector is removed subsequent speakers will be disconnected see Figure...

Page 11: ... the mounting tabs the tabs automatically turn outward thus clamping the speaker to the wall from its rear side Note Do not over tighten the screws It may cause damage to both the speakers and the surface Figure 6 Tighten the Mounting Tabs 9 If required you can further secure the speaker by connecting the speaker support ring to an independent secure anchor point 10 Adjust each speaker to the appr...

Page 12: ...he perimeter of the grille until it is completely removed 5 4 Painting the Speaker You can paint the speakers before or after they are installed When painting before installation Clean the rim and grille with mineral spirits or other light solvent that is unlikely to damage the surface Spray with color by holding the spray can at an angle of 45 When spraying the grille take care not to clog the ho...

Page 13: ...DIRECTIVITY INDEX DI 6 8dB averaged 100Hz 10kHz 5 0dB 2kHz FREQUENCY RESPONSE 55Hz to 20kHz INPUT POWER 30W RMS 60W Max continuous load 24hr 40W TRANSFORMER 70V 3 7W 7 5W 15W 30W 100V 7 5W 15W 30W RECOMMENDED AMPLIFIER POWER 30W INPUT CONNECTOR Terminal block Shipping and Installation WEIGHT PER SINGLE SPEAKER 2 85kg 6 28lbs approx SHIPPING WEIGHT FOR PAIR 8kg 17 64lbs approx DIMENSIONS OD 25 1cm ...

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Page 15: ...P N 2900 300187 Rev 1 ...

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