
KRAMER ELECTRONICS LTD. 
USER MANUAL 
MODEL: 
Yar d en  8 -T (SPK-C820T) 
Ceiling Speaker  

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Contents 
1  Introduction  1 
2  Getting Started  2 
2.1  Achieving the Best Performance  2 
2.2  Recycling Kramer Products  3 
3  Overview  4 
3.1  Defining the Yarden 8-T  5 
4  Installing the Yarden 8-T  8 
4.1  Choosing the Best Location  8 
4.2  Connecting the wires  8 
4.3  Determining the Number of Speakers Needed and their Location  9 
4.4  Preparing the Yarden 8-T for Operation  11 
4.5  Installing the Tile Size Speaker  12 
5  Technical Specifications  16 
Figures 
Figure 1: Tile Size ESD Ceiling Speaker (that fits into the ceiling)  5 
Figure 2: Yarden 8-T Top and Underside View  6 
Figure 3: Yarden 8-T Side View  7 
Figure 4: Yarden 8-T Terminal Blocks  8 
Figure 5: Speaker Location in a Room—Yarden 8-T vs. Standard Ceiling Speakers  9 
Figure 6: Stereo Layout  10 
Figure 7: Mono Layout  11 
Figure 8: Adjust Tap Selector  12 
Figure 9: Fitting the Tile Size Speaker  13 
Figure 10: Securing the Speaker to a Ceiling Anchor Point  14 
Figure 11: Yarden 8-T in a Boardroom Setup  15 

Yarden 8-T - Introduction 
1  Introduction 
Welcome to Kramer Electronics! Since 1981, Kramer Electronics has been 
providing a world of unique, creative, and affordable solutions to the vast range of 
problems that confront video, audio, presentation, and broadcasting professionals 
on a daily basis. In recent years, we have redesigned and upgraded most of our 
line, making the best even better! 
Our 1,000-plus different models now appear in 11 groups that are clearly defined 
by function: GROUP 1: Distribution Amplifiers; GROUP 2: Switchers and Routers; 
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 Yarden 8-T Ceiling Speaker, which is 
ideal for overhead distributed audio for professional applications (music and 
speech) and educational applications. 
ESD™ (Equal Sound Dispersion) Ceiling Speakers are designed for  
indoor dry locations and are suitable for use in air handling spaces. 

Yarden 8-T - Getting Started 
2  Getting Started 
We recommend that you: 
  Unpack the equipment carefully and save the original box and packaging 
materials for possible future shipment 
  Review the contents of this user manual 
Go to 
http://www.kramerelectronics.com/support/product_downloads.asp 
to check for up-to-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 (we recommend Kramer high-
performance, high-resolution cables) 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 Speakers away from moisture, excessive sunlight and 
dust 
This equipment is to be used only inside a building. It may only be 
connected to other equipment that is installed inside a building. 
Do not open the housing of the speaker; doing so may reduce the 
quality of the sound. 

Yarden 8-T - Getting Started 
2.2  Recycling Kramer Products 
The Waste Electrical and Electronic Equipment (WEEE) Directive 2002/96/EC 
aims to reduce the amount of WEEE sent for disposal to landfill or incineration by 
requiring it to be collected and recycled. To comply with the WEEE Directive, 
Kramer Electronics has made arrangements with the European Advanced 
Recycling Network (EARN) and will cover any costs of treatment, recycling and 
recovery of waste Kramer Electronics branded equipment on arrival at the EARN 
facility. For details of Kramer’s recycling arrangements in your particular country 
go to our recycling pages at http://www.kramerelectronics.com/support/recycling/. 

3  Overview 
The ESD™ (Equal Sound Dispersion) Ceiling Speaker is a high- performance  
complete K-overage ESD ceiling speaker that can be mounted on the ceiling and 
appears as a suspended ceiling tile. 
The ESD ceiling speaker is constructed with a central driver and four pivoting 
tweeters and is housed in an enclosed shallow enclosure. 
The Kramer complete K-overage ESD provides unmatched sound response in a 
suspended ceiling device for the professional and educational markets. This 
means that you get the sound you need but with a reduced number of speakers. 
The ESD ceiling speaker features: 
  Complete K-overage ESD™ – a patent pending design with 4 pivoting silk 
dome tweeters that direct the sound, based on the room environment, for 
equal sound dispersion (ESD) 
  2 sets of 70V/100V transformers  
  Mono/Stereo Switch – Toggles between Stereo mode (left in to left out + 
right in to right out) and Mono mode (left in to left and right out) 
  Music/Speech Switch – Toggles between Music mode (full range) to Speech 
mode (cuts low frequencies and clears up speech frequencies to enhance 
intelligibility) 
  Wide, up to 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 
  A Kevlar(R) cone woofer  
  A 40W RMS power rating  
  Smooth frequency response  
  A shallow 4-inch depth (approx. 100mm) enclosure 

  RoHS compliance 
Compliance to RoHS means acting in full accordance with RoHS regulations that 
restrict the use of certain dangerous substances commonly used in electronic 
equipment 
  A speaker grille that is supported by two screws and held together with a set 
of magnets 
  A plastic ring to secure the wires to the speaker 
Figure 1: Tile Size ESD Ceiling Speaker (that fits into the ceiling) 
The speaker is easily installed and is also available with a 60 X 60cm grille for the 
US and other markets, if required. 
3.1  Defining the Yarden 8-T 
Figure 2 defines the Yarden 8-T top and underside view: 

Figure 2: Yarden 8-T Top and Underside View 

Flat Ceiling Speaker Features 
Shallow fireproof enclosure 
Secure the speaker to the ceiling anchoring point 
Insert the wire through the plastic ring to secure 
the wires to the speaker 
Tap Selector and Operation Switches 
Control the speaker operation mode 
INPUT Terminal Block Connector 
Connect to the audio source (see Section  4.2) 
Kevlar(R) surrounded by rubber 
Figure 3 defines the Yarden 8-T side view: 
Figure 3: Yarden 8-T Side View 
Flat Ceiling Speaker Features 
Stereo/Mono Selector Switch 
Select stereo or mono operation 
Music/Speech Selector Switch 
Select the speaker operation mode:  
Set to Music for boardrooms, offices, hotels and 
restaurants (for background music) 
Set to Speech for lecture halls and classrooms 
Use for tap setting, see Figure 8 

Yarden 8-T - Installing the Yarden 8-T 
4  Installing the Yarden 8-T 
This section explains how to install the Yarden 8-T, that is: 
  Choosing the best place to locate your speaker (see Section 4.1)  
  Connecting the wires (see Section 4.2)  
  Determining the number of speakers (see Section 4.3)  
  Preparing the speaker for operation (see Section 4.4)  
  Installing the tile size speaker (see Section 4.5) 
4.1  Choosing the Best Location 
Ideally, locate the speaker 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  Connecting the wires 
Figure 4 illustrates the terminal block pinout for the mono and stereo setups: 
Figure 4: Yarden 8-T Terminal Blocks 

Yarden 8-T - Installing the Yarden 8-T 
The red wires connect to the + pins and the black wires connect to 
the – pins. 
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 5 
shows the Yarden 8-T 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 5: Speaker Location in a Room—Yarden 8-T vs. 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) 

Yarden 8-T - Installing the Yarden 8-T 
  If the size of the room only requires a single speaker, we recommend using the 
mono/stereo speaker for speech or music as required (see Figure 6 and 
Figure 7) 
Figure 6: Stereo Layout 
  If the size of the room requires more than one speaker, use two or more 
mono speaker models (see Figure 7) 

Yarden 8-T - Installing the Yarden 8-T 
Figure 7: Mono Layout 
4.4  Preparing the Yarden 8-T for Operation 
Once the location of the speaker is determined, prepare the speaker for operation 
as follows: 
1. Move each of the pivoting tweeters outward in an angle that is suited to the 
room shape and size. 
2. Run the wires from the amplifier through the ceiling. 
3. Remove the ceiling tile at the place where you plan to install the speaker. 
4. Connect the speaker wires to the speaker terminals (see Figure 4) from the 
adjacent ceiling tile opening. 
5. Adjust the speaker to the appropriate tap setting (see Figure 8). 
Set the tap according to the power requirements of the speaker based on its location in the 
room (for example, a speaker located in a remote corner may require additional power) 

Yarden 8-T - Installing the Yarden 8-T 
Figure 8: Adjust Tap Selector 
6. Place the speaker temporarily in place, and test the audio quality. 
7. 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. 
8. Fit the speaker grille over the speaker underside and tighten with screws. 
Do not select the maximum tapping position when using 100V (in 
both the stereo and mono modes). 
4.5  Installing the Tile Size Speaker 
1. Drop the speaker into the ceiling tile space.  
Make sure that you position the speaker lengthwise relative to the room 
shape (see Figure 9). 

Yarden 8-T - Installing the Yarden 8-T 
Figure 9: Fitting the Tile Size Speaker 
2. Secure the speaker by connecting the speaker support ring to an 
independent secure ceiling anchor point (see Figure 10) as appropriate. 
The anchor prevents the speaker from falling if the tile itself comes out or falls apart. 

Yarden 8-T - Installing the Yarden 8-T 
Figure 10: Securing the Speaker to a Ceiling Anchor Point 
3. If required, daisy-chain the next speaker (see Section  4.3). 
Do not over-tighten the screws. It may cause damage to both the 
speakers and the surface. 
Figure 11 shows an example of how the Yarden 8-T can be installed in a 
boardroom setup: 

Yarden 8-T - Installing the Yarden 8-T 
Figure 11: Yarden 8-T in a Boardroom Setup 

Yarden 8-T - Technical Specifications 
5  Technical Specifications 
Two-way flat ceiling speaker 
65Hz to 20kHz @ -10dB 
80Hz to 20kHz @ ±3dB 
8” (200mm) Kevlar(R) with rubber surround 
4 x 0.75” (20mm) pivoting titanium dome 
8Ω stereo, 4Ω mono (transformer tap in off position) 
Stereo: 70V – 3.75W/7.5W/15W/30W; 100V – 7.5W/15W/30W 
Mono: 70V – 7.5W/15W/30W/60W; 100V – 15W/30W/60W 
Continuous: 102dB 
Peak: 105dB 
40W RMS 
110W continuous program 
9.43, averaged 1kHz to 10kHz 
9.5dB averaged 1kHz to 10kHz 
Terminal block connectors 
Mono/Stereo select switch, Music/Speech select switch 
Shipping and Installation 
Frame, steel grilles (595x595mm, 600x600mm), cable holder 
60cm x 60cm x 10cm (tile size) 
59.5cm x 59.5cm x 10cm (tile size) for any region with 
suspended ceiling tiles of 595mm 
0° to +40°C (32° to 104°F) 
-40° to +70°C (-40° to 158°F) 
10% to 90%, RHL non-condensing 
10.5 kg (27.1lbs) approx. 
2 available grilles (595x595mm, 600x600mm) 
Specifications are within a 10% tolerance and are subject to change without notice at 
http://www.kramerelectronics.com 

For the latest information on our products and a list of Kramer distributors, 
visit our Web site where updates to this user manual may be found. 
We welcome your questions, comments, and feedback. 
Web site: www.kramerelectronics.com  
E-mail: info@kramerel.com 
!
SAFE TY WARNI NG 
Disconnect the unit from the power 
supply before opening and servicing