Kramer VS-406 Manuale utente

Kramer Electronics, Ltd.

Preliminary

USER MANUAL

Model:

VS-406

Audio Selector/Amplifier

Contents

1Introduction 1

2Getting Started 1

2.1 Quick Start 2

3Overview 3

4Your VS-406 Audio Selector/Amplifier 3

5Installing the VS-406 in a Rack 5

6Connecting and Operating the VS-406 6

6.1 Optional Gain Adjustment 8

7Technical Specifications 9

Figures

Figure 1: VS-406 Audio Selector/Amplifier 4

Figure 2: Connecting the VS-406 Audio Selector/Amplifier 7

Figure 3: Adjusting the Gain DIP-Switches 8

Tables

Table 1: VS-406 Audio Selector/Amplifier Functions 4

Table 2: VS-406 Technical Specifications 9

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 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

Thank you for purchasing the Kramer VS-406 Audio Selector/Amplifier,

which is ideal for:

that are clearly

defined by function.

•Audio broadcast and production studios

•Hi-fi retail stores

Each package includes the following items:

•The VS-406 Audio Selector/Amplifier

•Power supply (24V DC) and rack “ears”

•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 high-resolution 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 our Web site at 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

Getting Started

2.1 Quick Start

This quick start chart summarizes the basic setup and operation steps.

Overview

3 Overview

The VS-406 is a switcher/amplifier for unbalanced analog audio stereo

signals. The unit mechanically switches the single line input to one output,

either one of ten unpowered unbalanced audio stereo line outputs, or one of

six amplified speaker outputs. The unit does not switch to line and speaker

outputs simultaneously.

More specifically, the VS-406 features:

•Unpowered 1x10 mechanical line to line switching

•Amplified 1x6 line to speaker switching

•A loudspeaker volume knob

•A power ON indication LED

•A 24V DC power supply

•Standard 19” 1 U rack mount size

To achieve the best performance:

•Use only good quality connection cables1

•Avoid interference from neighboring electrical appliances that may

adversely influence signal quality and position your Kramer VS-406

away from moisture, excessive sunlight and dust

to avoid interference,

deterioration in signal quality due to poor matching, and elevated noise

levels (often associated with low quality cables)

4 Your VS-406 Audio Selector/Amplifier

Figure 1 and Table 1 define the unit.

1 Available from Kramer Electronics on our Web site at http://www.kramerelectronics.com

KRAMER: SIMPLE CREATIVE TECHNOLOGY

Your VS-406 Audio Selector/Amplifier

Figure 1: VS-406 Audio Selector/Amplifier

Table 1: VS-406 Audio Selector/Amplifier Functions

Feature

Function

1 ON LED Illuminates green when receiving power

2 LINE OUT SELECTOR Buttons Press to choose the output line (1 to 10)

3 LOUDSPEAKER OUT SELECTOR Buttons Press to choose the output speaker pair (11 to 16)

4 LOUDSPEAKER VOLUME Knob Turn to adjust the volume level of the selected speakers

5 OUT (SPKR) (L+, L-, R+, R-) Terminal Blocks Connect to the stereo speaker pairs (11 to 16)

6 LINE INPUT (L, R) RCA Connectors Connect to the unbalanced audio stereo line source

7 LINE OUTPUT (L, R) RCA Connectors Connect to the unbalanced audio stereo acceptors (1 to 10)

8 24V DC Connector +24V DC for powering the unit

Installing the VS-406 in a Rack

5 Installing the VS-406 in a Rack

This section provides instructions for rack mounting the unit.

KRAMER: SIMPLE CREATIVE TECHNOLOGY

Connecting and Operating the VS-406

6 Connecting and Operating the VS-406

To connect the VS-406, as shown in Figure 2, do the following1

1. Connect an unbalanced stereo audio source (for example, a stereo audio

player) to the LINE INPUT L and R RCA connectors.

2. Connect the LINE OUTPUT RCA connectors to up to 10 unbalanced

stereo audio acceptors (for example, stereo audio recorders).

3. Connect the OUT (SPKR) connectors to up to 6 speaker pairs (use only

passive, unpowered speakers).

4. Connect the 24V DC power supply.

To operate the VS-406:

1. Press the appropriate button on the LINE OUT SELECTOR (from 1 to

10) or the LOUDSPEAKER OUT SELECTOR (from 11 to 16).

The line input switches to the selected line output or speaker.

2. Adjust the speaker volume by turning the LOUDSPEAKER VOLUME

knob.

Note: The power supply is only needed when operating loudspeakers.

No power is needed for line switching.

1 Switch OFF the power on each device before connecting it to your VS-406. After connecting your VS-406, connect its

power and then switch on the power on each device

Connecting and Operating the VS-406

Figure 2: Connecting the VS-406 Audio Selector/Amplifier

KRAMER: SIMPLE CREATIVE TECHNOLOGY

Connecting and Operating the VS-406

6.1 Optional Gain Adjustment

You can set the overall gain of the loudspeaker outputs by adjusting the

gain DIP-switches located on the circuit board inside the VS-406. Settings

available are 26dB, 32dB, 38dB (factory default setting) and 42dB.

To set the gain DIP-switches:

1. Remove the screws from the top and sides that hold the top cover.

2. Remove the top cover to access the circuit board.

3. Using a small screwdriver or pointed object, slide the DIP-switches to

set the desired gain (see Figure 3).

4. Replace the top cover and secure with the screws removed as per Step 1

above.

OFF

Rear Side

Front Side

26dB 38dB 42dB

32dB

Factory

Setting

OFF

26dB (x10)

32dB (x20)

38dB (x40)

42dB (x63)

OFF OFF

OFF OFF OFF

ON ON ON

Figure 3: Adjusting the Gain DIP-Switches

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