Kramer SPK-CC678 User manual

Kramer Electronics, Ltd.
USER MANUAL
Models:
SPK-CC678, Closed-back Ceiling Speakers
SPK-CCV448, Closed-back Ceiling Speakers
SPK-CCV444, Closed-back Ceiling Speakers

Contents
i
Contents
1Introduction 1
2Getting Started 1
3Overview 2
4Your Closed-back Ceiling Speakers 3
5Installing the Closed-back Ceiling Speakers 6
5.1 Choosing the Best Location 6
5.2 Cutting the Ceiling Tile 7
5.3 Mounting the Speakers 8
5.4 Painting the Speaker 10
6Technical Specifications 11
Figures
Figure 1: Closed-back Ceiling Speakers in a Boardroom Setup 2
Figure 2: SPK-CC678 Closed-back Ceiling Speaker 4
Figure 3: SPK-CCV448 / SPK-CCV444 Closed-back Ceiling Speaker 4
Figure 4: Closed-back Ceiling Speaker Schematic Diagram 6
Figure 5: Installing the Closed-back Ceiling Speakers 8
Figure 6: Plugging and Securing the Cable 9
Figure 7: Tighten the Mounting Tabs 9
Figure 8: Adjust Tap Selector (for the SPK-CC678) 10
Tables
Table 1: Closed-back Ceiling Speakers – Definition 2
Table 2: Closed-back Ceiling Speakers Hardware Items 5
Table 3: Ceiling Mounting Kit Items 5
Table 4: Technical Specifications of the SPK-CC678 11
Table 5: Technical Specifications of the SPK-CCV448 and the SPK-CCV444 11

Introduction
1
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 the video, audio, presentation, and
broadcasting professional 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 groups1
Congratulations on purchasing your Kramer Closed-back Ceiling Speakers,
which are available in three models: SPK-CC678, SPK-CCV448 and
SPK-CCV444,and are ideal for:
that are clearly defined
by function.
•Conference rooms, classrooms and training rooms
•Boardrooms
•Hotel lobbies
•Presentation venues
The package includes the following items:
•SPK-CC678, and/or SPK-CCV448 and/or SPK-CCV444
•Mounting kit
•This user manual2
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
•Use Kramer high performance cables3
1 GROUP 1: Distribution Amplifiers; GROUP 2: Switchers and Matrix Switchers; 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; GROUP 11: Sierra Products
2 Download up-to-date Kramer user manuals from the Internet at this URL: http://www.kramerelectronics.com
3 The complete list of Kramer cables is on our Web site at http://www.kramerelectronics.com

KRAMER: SIMPLE CREATIVE TECHNOLOGY
Overview
2
3 Overview
The Closed-back Ceiling speakers consist of a pair of high performance
closed back speakers. The pair can be mounted on the ceiling, as well as via a
ceiling mounting kit used to safely secure the speakers to the ceiling. Table 1
defines the Closed-back Ceiling speakers:
Table 1: Closed-back Ceiling Speakers – Definition
Name Diameter [“] Resistance [
Ω
] Closed-back Depth [“]
SPK-CC678 6.5 8 7
SPK-CCV448 4 8 4
SPK-CCV444 4 4 4
Figure 1shows an example of how the Closed-back Ceiling speakers can be
installed in a boardroom setup:
Figure 1: Closed-back Ceiling Speakers in a Boardroom Setup

Your Closed-back Ceiling Speakers
3
3
To achieve the best performance:
•Connect only good quality connection cables1
•Avoid interference from neighboring electrical appliances and position
your Kramer Closed-back Ceiling speakers away from moisture,
excessive sunlight and dust
, thus avoiding interference,
deterioration in signal quality due to poor matching, and elevated noise-
levels (often associated with low quality cables)
4 Your Closed-back Ceiling Speakers
Figure 2and Figure 3define the SPK-CC678 and the SPK-CCV448 and
SPK-CCV444, respectively.
1 Such as the Kramer BC-2S cable

KRAMER: SIMPLE CREATIVE TECHNOLOGY
Your Closed-back Ceiling Speakers
4
Figure 2: SPK-CC678 Closed-back Ceiling Speaker
Figure 3: SPK-CCV448 / SPK-CCV444 Closed-back Ceiling Speaker

Your Closed-back Ceiling Speakers
5
5
Table 2defines the Closed-back Ceiling speaker hardware items (per speaker
pair):
Table 2: Closed-back Ceiling Speakers Hardware Items
Description
A pair of
ceiling
speakers
(one shown1)
Two grilles
(one shown)
Cutout
template
Table 3defines the ceiling mounting kit items:
Table 3: 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
Each Closed-back ceiling speaker is supported by a C-ring and two tile rails2.
When mounting onto the ceiling tiles3, use both supports. When mounting onto
a sheetrock ceiling, the C-ring alone is used to reinforce the ceiling material.
Figure 4shows a schematic diagram of the closed-back ceiling speaker:
1 The quantity applies to all models
2 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
3 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

KRAMER: SIMPLE CREATIVE TECHNOLOGY
Installing the Closed-back Ceiling Speakers
6
Figure 4: Closed-back Ceiling Speaker Schematic Diagram
5 Installing the Closed-back Ceiling Speakers
This section explains how to install the 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)
•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
•Rear side of the speaker is not blocked by wall studs or other objects

Installing the Closed-back Ceiling Speakers
7
7
5.2 Cutting the Ceiling Tile
To cut the ceiling tile, do the following:
1. Remove the circle in the supplied template1
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 size2
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
.
3
If you are mounting the speakers onto a ceiling tile, remove the ceiling tiles
where you plan to install the speakers. Use the template to trace and then
cutout the speaker hole over an empty box.
.
The closed-back ceiling speakers are supported by the ceiling mounting kit
(two C-rings and two pairs of tile rails4). When mounting onto the ceiling
tiles5
, use both supports. When mounting onto a sheetrock ceiling, the C-ring
alone is used to reinforce the ceiling material.
1 Keep this template for later use as a mask, as you may want to paint the speakers (see section 5.3)
2 Initially, you can cut a smaller area inside the marked hole just to be sure that the space above the speakers is clear
3 Do not nail or staple the speaker wires
4 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
5 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

KRAMER: SIMPLE CREATIVE TECHNOLOGY
Installing the Closed-back Ceiling Speakers
8
5.3 Mounting the Speakers
To install the closed-back ceiling speakers, do the following:
1. Place the C-ring over the hole cut in the ceiling tile (on the “ceiling”
side). Place it around the hole so that the tabs are located in parallel to the
tile edges (see Figure 5).
T-channel Grid
Support Ring
Screws Ceiling Tile
Tile Rails
C-ring
Figure 5: Installing the Closed-back Ceiling Speakers
2. Place the tile rails on the tile and snap them into the two tabs on the
C-ring.
Align the rails so that the ends extend over the T-channel grid.
3. Insert a screw through each tab on the C-ring to secure the rails.
4. Connect the speaker wires to the appropriate connector terminals1and
screw the hold-down screws on the connector until tight2
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
.
You can connect the speakers in the two following possible layouts:
Figure 4)
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 4)
5. Plug the connector into the socket in the terminal cup of the speaker (see
Figure 6).
6. Run the wires through the wires’ opening in the input terminal cover plug
and then into the terminal block connector of the speaker.
1 PIN 1 and PIN 2 are connected internally and are positive (+). PIN 3 and PIN 4 are connected internally and are negative (-)
2 Use a small screwdriver

Installing the Closed-back Ceiling Speakers
9
9
Figure 6: Plugging and Securing the Cable
7. Push the speaker into the ceiling hole until the front baffle rim is leveled
with the ceiling.
8. Tighten the mounting tabs by turning the screw counter clockwise1(see
Figure 7).
When tightening 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 7: 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 appropriate tap setting before installing the
grille (see Figure 8).
1 The first quarter turn, rotates the tab outwards, and the following turns tighten the tabs to the rear side of the ceiling surface

KRAMER: SIMPLE CREATIVE TECHNOLOGY
Installing the Closed-back Ceiling Speakers
10
Figure 8: Adjust Tap Selector (for the SPK-CC678)
11. Install the grilles to the speakers:
Push the grille fastener into the hole in front of the baffle
Press the grille into place until the front of the grille is flush with the
rim of the baffle
Check that the grille is securely seated1
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°
Note: When spraying the grille, take care not to clog the holes in the grille
as this will greatly reduce the sound quality of the speakers
When painting after installation:
•Use the circle that you cut out of the template as a paint mask
•After you finish painting, remove the paint mask
1 To remove the grille, insert two bent paper clips into the holes in the grille and carefully pull it down. Repeat this around the
perimeter of the grille until it is completely removed

Technical Specifications
11
11
6 Technical Specifications
Table 4and Table 5include the technical specifications1
Table 4: Technical Specifications of the SPK-CC678
of the closed-back
ceiling speakers:
DESCRIPTION: 2-way co-axial speaker
HIGH FREQUENCY DRIVER: 1” MYLAR dome tweeter
LOW FREQUENCY DRIVER: 6.5” Polypropylene cone with rubber edge
woofer
IMPEDANCE: 8Ω
CROSSOVER FREQUENCY: 8kHz
SENSITIVITY: 87dB
FREQUENCY RESPONSE: 55Hz to 20KHz
POWER RATING: 30W nominal, 60W Max.
RECOMMENDED AMPLIFIER POWER: 30W
WEIGHT PER SINGLE SPEAKER: 2.85kg (6.28lbs) approx.
SHIPPING WEIGHT (FOR PAIR): 8kg (17.64lbs) approx.
DIMENSIONS (OD): 25.2cm (9.92")
CUT OUT SIZE (MOUNT DIMENSION): 22.3cm (8.78")
MOUNT DEPTH: 19.5cm (7.68”)
ACCESSORIES: Ceiling mounting kit
Table 5: Technical Specifications of the SPK-CCV448 and the SPK-CCV444
SPK-CCV444 SPK-CC448
DESCRIPTION: 2-way co-axial speaker
HIGH FREQUENCY DRIVER: 1” MYLAR tweeter
LOW FREQUENCY DRIVER: 4”Polypropylene cone with rubber edge woofer
IMPEDANCE: 4Ω8Ω
CROSSOVER FREQUENCY: 10kHz 10kHz
SENSITIVITY: 85 dB 85dB
FREQUENCY RESPONSE: 85-20KHz 95-20KHz
POWER RATING: 20W nominal, 40W
Max. 20W nominal, 40W Max.
RECOMMENDED AMPLIFIER POWER: 20W 20W
WEIGHT PER SINGLE SPEAKER: 2.2kg (4.85lbs) approx.
SHIPPING WEIGHT (FOR PAIR): 6kg (13.23lbs) approx.
DIMENSIONS (OD): 25.2cm(9.92")
CUT OUT SIZE (MOUNT DIMENSION): 22.3cm (8.78")
MOUNT DEPTH: 10.8cm (4.25”)
ACCESSORIES: Ceiling mounting kit
1 Specifications are subject to change without notice

KRAMER: SIMPLE CREATIVE TECHNOLOGY
12
LIMITED WARRANTY
WHOISPROTECTED?
WHATISCOVEREDANDWHATISNOTCOVERED
WHATWEWILLPAYFORANDWHATWEWILLNOTPAYFOR
HOW YOU CAN GET WARRANTY SERVICE
LIMITATIONOFIMPLIEDWARRANTIES
EXCLUSIONOFDAMAGES
CAUTION!
Kramer Electronics (hereafter ) warrants this product free from defects in material and workmanship under the
following terms. Kramer
HOWLONGISTHE WARRANTY
Labor and parts are warranted for one year from the date of the first customer purchase.
Only the first purchase customer may enforce this warranty.
Wewillpaylaborandmaterialexpensesforcovereditems.Wewillnotpayforthefollowing:
The liability of Kramer for any effectiveproductsis limited to the repairor replacement of theproduct at our option. Kramer shall
notbeliablefor:
Thiswarrantygivesyouspecificlegalrights,andyoumayalsohaveotherrights,whichvaryfromplaceto place.
AllproductsreturnedtoKramerforservicemusthavepriorapproval.Thismaybeobtainedfromyourdealer.
Thisequipmenthasbeentestedtodeterminecompliancewiththerequirementsof:
EN-50081: "Electromagneticcompatibility(EMC);
genericemissionstandard.
Residential,commercialandlightindustry"
EN-50082: "Electromagneticcompatibility(EMC)genericimmunitystandard.
Part1:Residential,commercialandlightindustryenvironment".
CFR-47: FCC* Rules and Regulations:
Part 15: “Radio frequency devices
Subpart B Unintentional radiators”
Except as below, this warranty covers all defects in material or workmanship in this product. The following are not covered
bythewarranty:
1. Any product which is not distributed by Kramer, or which is not purchased from an authorized Kramer dealer. If you are
uncertain as to whether a dealer is authorized, please contact Kramer at one of the agents listed in the Web site
www.kramerelectronics.com.
2. Any product, on which the serial number has been defaced, modified or removed, or on which the WARRANTY VOID
TAMPERED sticker has been torn,
3. Damage,deteriorationormalfunctionresultingfrom:
i) Accident,misuse,abuse,neglect,fire, water,lightningorotheractsofnature
ii) Productmodification,orfailuretofollowinstructionssuppliedwiththeproduct
iii) RepairorattemptedrepairbyanyonenotauthorizedbyKramer
iv) Anyshipmentoftheproduct(claimsmustbepresentedtothecarrier)
v) Removalorinstallationoftheproduct
vi) Anyothercause,whichdoesnot relatetoaproductdefect
vii)Cartons,equipmentenclosures,cablesoraccessoriesusedinconjunctionwiththeproduct
1. Removalorinstallationscharges.
2. Costs of initial technical adjustments (set-up), including adjustment of user controls or programming. These costs are the
responsibilityoftheKramerdealerfromwhomtheproductwaspurchased.
3. Shippingcharges.
1. To obtain service on you product, you must take or ship it prepaid to any authorized Kramer service center.
2. Whenever warranty service is required, the original dated invoice (or a copy) must be presented as proof of warranty
coverage, and should be included in any shipment of the product. Please also include in any mailing a contact name,
company, address, and a description of the problem(s).
3. For the name of the nearest Kramer authorized service center, consult your authorized dealer.
All implied warranties, including warranties of merchantability and fitness for a particular purpose, are limited in duration to
the length of this warranty.
1. Damagetootherpropertycausedbydefectsinthisproduct,damagesbaseduponinconvenience,lossofuseoftheproduct,loss
oftime,commercialloss;or:
2. Anyotherdamages, whether incidental,consequential or otherwise.Some countriesmaynotallow limitations onhow long an
implied warranty lasts and/or do not allow theexclusion or limitation of incidental or consequential damages, so the above
limitationsandexclusionsmaynotapplytoyou.
Servicing the machines can only be done by an authorized Kramer technician. Any user who makes changes or
modifications to the unit without the expressed approval of the manufacturer will void user authority to operate the
equipment.
UsethesuppliedDCpowersupplytofeedpowertothemachine.
Pleaseuserecommended interconnection cablestoconnect the machineto other components.
IF reattached, removed or otherwise interfered with.
*FCCandCEapprovedusingSTPcable(fortwistedpairproducts)
NOTE:
Part1:

Kramer Electronics, Ltd.
Web site: www.kramerelectronics.com
E-mail: [e-mail]
P/N: 2900-000692 REV 1
For the latest information on our products and a list of Kramer
distributors, visit our Web site: www.kramerelectronics.com,
where updates to this user manual may be found.
We welcome your questions, comments and feedback.