Kramer Yarden 4-C SPK-C421-K User manual

KRAMER ELECTRONICS LTD.
USER MANUAL
MODEL:
Yarden 4-C (SPK-C421-K)
Closed-back Ceiling Speaker
P/N: 2900-300346 Rev 1

Yarden 4-C Contents
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Contents
1Introduction 1
2Getting Started 2
2.1 Achieving the Best Performance 2
2.2 Recycling Kramer Products 3
3Overview 4
4Your Yarden 4-C Closed-back Ceiling Speaker 5
5Installing the Yarden 4-C 7
5.1 Choosing the Best Location 7
5.2 Cutting the Ceiling Tile 7
5.3 Mounting the Yarden 4-C 8
5.4 Setting up an Array Installation 11
5.5 Painting the Speaker 14
6Technical Specifications 15
Figures
Figure 1: Yarden 4-C Closed-back Ceiling Speaker in a Boardroom Setup 4
Figure 2: Yarden 4-C Closed-back Ceiling Speaker 5
Figure 3: Closed-back Ceiling Speaker Schematic Diagram 6
Figure 4: Mounting the Yarden 4-C Closed-back Ceiling Speaker 9
Figure 5: Plugging and Securing the Cable 10
Figure 6: Tighten the Mounting Tabs 10
Figure 7: Adjust Tap Selector 11
Figure 8: Square Layout 12
Figure 9: Hexagonal Layout 12
Figure 10: Square Layout Parallel Wiring 13

Yarden 4-C Introduction
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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 4-C Closed-back Ceiling
Speaker, which are ideal for the following typical applications:
Restaurants and cafes
Boutiques and shops
Boardrooms and meeting rooms
Classrooms and lecture venues
Yarden 4-C is designed for indoor dry locations and is suitable for
use in air handling spaces (plenum spaces).
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2
Yarden 4-C 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 4-C Getting Started
3
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/.

4
Yarden 4-C Overview
3 Overview
The Yarden 4-C Closed-back Ceiling Speaker consists of a pair of high
performance closed back speakers. Mount your Yarden 4-C speakers to the
ceiling in one of two ways: either directly onto the ceiling or, for added protection,
secure the speakers safely, using our ceiling mounting kit that is provided free
(see Section 5.3).
The Yarden 4-C speakers feature a multi-tap power transformer for selecting 8Ω
(bypassing the transformer) or 70V/100V power settings that are suitable for an
array installation.
Figure 1 shows an example of how the Yarden 4-C Closed-back Ceiling Speaker
can be installed in a boardroom setup:
Figure 1: Yarden 4-C Closed-back Ceiling Speaker in a Boardroom Setup

Yarden 4-C Your Yarden 4-C Closed-back Ceiling Speaker
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5
4 Your Yarden 4-C Closed-back Ceiling
Speaker
Figure 2 defines the Yarden 4-C.
Figure 2: Yarden 4-C Closed-back Ceiling Speaker
The following table defines the Closed-back Ceiling speaker 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

6
Yarden 4-C Your Yarden 4-C Closed-back Ceiling Speaker
Each Closed-back Ceiling speaker is supported by a C-ring and two tile rails. The tile
rails prevent the speakers from falling if the tile itself comes out or falls apart, as
their ends catch onto 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 the Closed-back ceiling speaker:
Figure 3: Closed-back Ceiling Speaker Schematic Diagram
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Yarden 4-C Installing the Yarden 4-C
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5 Installing the Yarden 4-C
This section explains how to install the Yarden 4-C closed-back ceiling speakers,
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)
Setting up an array installation (see Section 5.4)
Painting the speakers (see Section 5.5)
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 5.5)
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