Kramer Yarden 8-T SPK-C820T User Manual

KRAMER ELECTRONICS LTD.

USER MANUAL

MODEL:

Yar d en 8 -T (SPK-C820T)
Ceiling Speaker

P/N: 2900-300306 Rev 1

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Yarden 8-T – Contents

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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

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.

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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.

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Yarden 8-T - Getting Started

3

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/.

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Yarden 8-T - Overview

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

Yarden 8-T - Overview

5

 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:

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Yarden 8-T - Overview

Figure 2: Yarden 8-T Top and Underside View

Yarden 8-T - Overview

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Flat Ceiling Speaker Features

#

Feature

Function

1

Speaker Tile Base

Tile size

2

Speaker Steel Enclosure

Shallow fireproof enclosure

3

Anchor Ring

Secure the speaker to the ceiling anchoring point

4

Wire Secure Ring

Insert the wire through the plastic ring to secure
the wires to the speaker

5

Tap Selector and Operation Switches

Control the speaker operation mode

6

INPUT Terminal Block Connector

Connect to the audio source (see Section 4.2)

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Tweeters (4)

Pivoting silk

8

Woofer

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

#

Feature

Function

1

Stereo/Mono Selector Switch

Select stereo or mono operation

2

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

3

Tap Selector Button

Use for tap setting, see Figure 8

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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

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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)

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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

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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)

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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).

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Yarden 8-T - Installing the Yarden 8-T

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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.

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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:

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Yarden 8-T - Installing the Yarden 8-T

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Figure 11: Yarden 8-T in a Boardroom Setup

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Yarden 8-T - Technical Specifications

5 Technical Specifications

Audio and Power

DESCRIPTION:

Two-way flat ceiling speaker

FREQUENCY RESPONSE:

65Hz to 20kHz @ -10dB
80Hz to 20kHz @ ±3dB

WOOFER:

8” (200mm) Kevlar(R) with rubber surround

TWEETER:

4 x 0.75” (20mm) pivoting titanium dome

IMPEDANCE:

8Ω stereo, 4Ω mono (transformer tap in off position)

TRANSFORMER TAPS:

Stereo: 70V – 3.75W/7.5W/15W/30W; 100V – 7.5W/15W/30W
Mono: 70V – 7.5W/15W/30W/60W; 100V – 15W/30W/60W

SENSITIVITY:

87dB 1W @1m

MAX SPL:

Continuous: 102dB
Peak: 105dB

POWER HANDLING:

40W RMS
110W continuous program

CROSSOVER FREQUENCY:

2.175kHz

DIRECTIVITY FACTOR (Q):

9.43, averaged 1kHz to 10kHz

DIRECTIVITY INDEX (DI)

9.5dB averaged 1kHz to 10kHz

INPUT CONNECTORS:

Terminal block connectors

CONTROLS:

Mono/Stereo select switch, Music/Speech select switch

Shipping and Installation

MATERIALS:

Frame, steel grilles (595x595mm, 600x600mm), cable holder

DIMENSIONS:

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

OPERATING TEMPERATURE:

0° to +40°C (32° to 104°F)

STORAGE TEMPERATURE:

-40° to +70°C (-40° to 158°F)

HUMIDITY:

10% to 90%, RHL non-condensing

WEIGHT:

8.8 kg (19.3lbs) approx.

SHIPPING WEIGHT:

10.5 kg (27.1lbs) approx.

ACCESSORIES:

2 available grilles (595x595mm, 600x600mm)

COLORS:

Available in white

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: [e-mail]

P/N:

2900-300306

Rev:

1

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SAFE TY WARNI NG
Disconnect the unit from the power
supply before opening and servicing