Kramer SPK-OCA504 User Manual

KRAMER ELECTRONICS LTD.

USER MANUAL

MODEL:

SPK-OCA504

On-Wall Active Speakers

P/N: 2900-000724 Rev 3

SPK-OCA504 – Contents i

Contents

1 Introduction 1
2 Getting Started 2

2.1 Achieving the Best Performance 2

3 Overview 3
4 Your SPK-OCA504 5
5 Installing the Speakers 7

5.1 Choosing the Best Location 7

5.2 Installing the Speaker Wires 7

6 Technical Specifications 9

Figures

UFigure 1: Active On-Wall Speakers in a Home Theater SetupU 4
UFigure 2: Active On-Wall Speakers in a Conference Room SetupU 4
UFigure 3: SPK-OCA504 Active SpeakerU 5
UFigure 4: Connecting the Active Speaker to the Passive SpeakerU 7

SPK-OCA504 - 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 groups that are clearly defined

by function: 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 and

GROUP 11: Sierra Products.

Congratulations on purchasing your Kramer SPK-OCA504 On-Wall Active

Speakers, which are ideal for the following typical applications:

• Boardrooms • Presentation venues

• Conference Rooms • Home theater

• Educational classrooms

The package includes one of each of the following items:

• A pair of SPK-OCA504 Active Speakers

• An RCA cable (2 meters)

• A speaker cable for connecting the active speaker to the passive speaker (4

meters)

• An AC power cord (1.8 meters)

• A pair of U-shaped rotating mounting brackets with 4 mounting bracket

screws

• This user manual

2 SPK-OCA504 - 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

• Use Kramer high-performance high-resolution cables

Go to http://www.kramerelectronics.com 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 (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)

• Avoid interference from neighboring electrical appliances that may adversely

influence signal quality

• Position your Kramer SPK-OCA504 away from moisture, excessive sunlight

and dust

To ensure that you obtain the best sound results, do not open the
housing of the passive speaker or the active speaker.

i

i

SPK-OCA504 - Overview 3

3

3 Overview

The SPK-OCA504 is a powered two-way speaker system designed for indoor wall

mounting. The system accepts a line level stereo input and amplifies it using a

built-in amplifier and outputs a speaker signal to the passive speaker.

The SPK-OCA504 speaker system features:

• Three available inputs (that can either be connected separately or

connected simultaneously to form a mix of the inputs) that consist of:

 A Line level unbalanced stereo audio input on a 3.5mm mini jack

connector

 A balanced stereo audio input on a 5-pin terminal block connector

 An unbalanced stereo audio input on two RCA connectors

• An output to external amplified or non-amplified speakers

• An output to an external sub-woofer

• A unique looping output, letting you chain additional pairs of active and

passive speakers

• TREBLE, BASS and VOLUME control knobs

• A control panel on the back of the active speaker that controls all the

functions of both speakers

• A magnetic shield

• Enhanced bass reflex design

• An integrated 2x30W stereo amplifier (no external amplifier required)

• A self adjusting power range of 90 to 240V AC

• Auto-power shutoff

The SPK-OCA504 is enclosed in an ABS cabinet and can be mounted indoors on

the wall, vertically or horizontally. The mounting brackets are made of hardened

steel that attach to each speaker, letting you rotate each speaker to the left or

right.

4 SPK-OCA504 - Overview

Figure 1 and Figure 2 show examples of how the speakers can be installed in

conference room and home theater setups, respectively.

Figure 1: Active On-Wall Speakers in a Home Theater Setup

Figure 2: Active On-Wall Speakers in a Conference Room Setup

LCD Display/

Plasma Display

Right On Wall

Speaker

SPK-OCA504

(Passive)

Left On Wall

Speaker

SPK-OCA504

(Active)

Projector

On Wall

Speakers

SPK-OCA504

Switcher/Scaler

Computer

Graphics

Source

DVD

Laptop

Left (Active)

Right (Passive)

SPK-OCA504 - Your SPK-OCA504 5

5

4 Your SPK-OCA504

This section defines the active SPK-OCA504:

Figure 3: SPK-OCA504 Active Speaker

6 SPK-OCA504 - Your SPK-OCA504

#

Feature

Function

1 SPEAKER OUT Connectors Connect the active speaker to the (+) and (-)

stereo sockets on the passive speaker

The L speaker is active and the R speaker is
passive

2 INPUT

Connectors

5-pin Terminal Block

Connect the audio source to one or more of the
input connectors

3 3.5mm Mini Jack

4 L and R RCA

5 BASS Control Knob Rotate the button to control the bass

6 TREBLE Control Knob Rotate the button to control the treble

7 VOLUME Control knob Rotate the button to adjust the audio volume

8 AC-Input Power Supply Connect to the AC power cord

9 POWER Switch For turning the unit ON (I), OFF (0) or AUTO

shutoff (II)

When selecting the AUTO shutoff mode, the
speaker enters the standby mode when idle
for over 10 minutes

10 POWER/STANDBY LED Illuminates in green when powered (POWER

switch set to ON or AUTO)
illuminates in red when in the standby mode
(POWER switch is set to AUTO)

In the AUTO mode, the LED illuminates green
if an input signal is detected and illuminates
red if idle for over 10 minutes

11 LOOP OUTPUT 3.5mm Mini Jack

Connector

Connect to another pair of active speakers

12 SUB OUT 3.5mm Mini Connector If required, connect an active sub-woofer to this

output for maximum bass reproduction

SPK-OCA504 - Installing the Speakers 7

7

5 Installing the Speakers

This section explains how to:

• Choose the best location for your speakers (see

Section 5.1

• Install the speaker wires (see ) Section 5.2

5.1 Choosing the Best Location

)

Before installing the speakers:

• Experiment by placing the speakers in different locations before finally

deciding on the most suitable location

• Be sure that the wall type is appropriate for the mounting brackets, that is,

either solid wood, bricks, concrete, hollow building blocks, or wood studs.

You cannot mount the brackets on gypsum walls

• Check that the mounting location is free of obstructions, such as electrical

piping, AC ducts or water lines, and so on

5.2 Installing the Speaker Wires

To install the speakers, do the following:

1. Connect the + and - stereo sockets of the active speaker to the + and -

stereo sockets of the passive speaker using the cable supplied, as follows:

Figure 4: Connecting the Active Speaker to the Passive Speaker

Active Speaker (L)

Passive Speaker (R)

8 SPK-OCA504 - Installing the Speakers

2. Connect the audio source (for example, a CD or a DVD player and so on) to

one of the INPUT connectors on the active speaker.

3. Connect the power.

4. Adjust the volume on the input source.

5. Adjust the volume control on the rear side control panel.

6. Adjust the bass and treble control on the rear side control panel.

7. If required, connect an additional set of speakers by connecting the LOOP

OUTPUT connector to the input of a second active speaker.

8. If required, mount the speaker on the wall via the removable mounting

brackets. To do so:

 Mark the location of the mounting holes

 Screw the mounting screws (not included in the package) into the

mounting holes

 Slide the mounting bracket over the mounting screws so that the

mounting bracket is secured to the surface

SPK-OCA504 - Technical Specifications 9

9

6 Technical Specifications

INPUT: 1 Line level unbalanced stereo audio on a 3.5mm mini

connector,
1 Line level balanced stereo audio on a terminal block
connector

1 Line level unbalanced stereo audio on Left and right RCA
connectors

OUTPUTS: 1 speaker (to connect to the external passive speaker)

1 active sub-woofer on a 3.5mm mini connector
1 looping output on a 3.5mm mini connector

SPEAKER TYPE: Two-way bass reflex, on-wall speaker

WOOFER: 5.25” (133mm) polypropylene cone/rubber surround

TWEETER: 0.51” (13mm) Mylar tweeter

FREQUENCY RESPONSE: 45Hz to 20kHz @-10dB

IMPEDANCE: 4Ω

MAX. SPL: 110dB

BUILT-IN POW ER AMPLIFIER: 2x30W RMS

CONTROL: Volume, bass and treble control

POWER SUPPLY: 90-240V AC self adjusting

STANDBY MODE POWER
CONSUMPTION:

0.7W

MATERIALS: Frame, grill and brackets steel; cabinet ABS

INSTALLATION CLEARANCE: Front panel to wall (with mounting bracket): 22cm

Back panel to wall (with mounting bracket): 4.5cm

DIMENSIONS: 18.3cm x 17cm x 24.4cm (7.2” x 6.7” x 9.61”) W, D, H

DIMENSIONS WITH MOUNTING
BRACKET:

18.3cm x 17.2cm x 26.5cm (7.2” x 6.77” x 10.43”) W, D, H

ACCESSORIES: 1 pair of U-shaped rotating mounting brackets with 4

mounting bracket screws, 1.8 meter power cord, 4 meter
loudspeaker cable and a 2 meter RCA cable

WEIGHT: Active speaker 2.7kg (5.95lbs) approx.

Passive speaker 2.2kg (4.85lbs) approx.

WEIGHT WITH MOUNTING KIT: Active speaker 3.1kg (6.83lbs) approx.

Passive speaker 2.6kg (5.73lbs) approx.

Specifications are subject to change without notice at http://www.kramerelectronics.com

10 SPK-OCA504 - Technical Specifications

LIMITED WARRANTY

WHO IS PROTECTED?

WHAT IS COVERED AND WHAT IS NOT COVERED

WHAT WE WILL PAY FOR AND WHAT WE WILL NOT PAY FOR

HOW YOU CAN GET WARRANTY SERVICE

LIMITATION OF IMPL IED WARRANTIES

EXCLUSION OF DAMAGES

CAUTION!

We warrant this product free from def ects in material and workmanship u nder the following terms.

HOW LONG IS THE 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.

We will pay labor and material expenses for covered items. We will not pay for the following:

The liability of Kramer for any effective products is limited to the repair or replacement of the product at our option. Kramer
shall not be liable for:

This warranty gives you specific legal rights, and you may also have other rights, which vary from place to place.

: All products returned to Kramer for service must hav e prior approval. This may be obt ained from your dealer.

This equipment has been tested to determine compliance with the requirements of:

EN-50081: " Electromagnetic compatibility (EMC);

generic emission standard.
Residential, com mercial and light industry"
EN-50082: "Electromagnetic compatibility (EMC) generic immunity standard.

Part 1: Residential, commercial and light industry environment".
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 by the warranty:

1. Any product which is not distributed by us 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, deterioration or malfunction result ing from:

i) Accident, misuse, ab use, neglect, fire, water, lightning o r other acts of nature
ii) Product modification, or failure to follow instructions supplied with the product
iii) Repair or attempted repair by anyone not authorized by Kramer
iv) Any shipment of the prod uct (claims must be present ed to the carrier)
v) Removal or installation of the product
vi) Any other cause, which does not relate to a prod uct defect
vii) Cartons, equipment enclosures, cables or accessories used in conjunction with t he product

1. Removal or installations charges.

2. Costs of initial technical adjustments (set-up), including adjustment of user controls or programming. These costs are

the responsibility of the Kramer dealer from w hom the product was purchased.

3. Shipping charges.

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. Damage to other property caused by defects in this product, damages based upon inconvenience, loss of use of the

product, loss of t ime, commercial loss; or:

2. Any other damages, whether incidental, consequential or otherwise. Some countries may not allow limitations on

how long an implied warranty lasts and/or do not allow the exclusion or limitation of incidental or consequential
damages, so the above limitations and exclusions may not apply to you.

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.

Use the supplied DC power supply to feed power to the machine.
Please use recommend ed interconnection cables to c onnect the machine to other c omponents.

IF reattached, removed or otherwise interfered with.

* FCC and C E approved using ST P cable ( for twisted pair produ cts)

NOTE

Part 1:

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:
E-mail:

www.kramerelectronics.com

[e-mail]

!

SAFETY WARNING

Disconnect the unit from the power
supply before opening and servicing