Kramer Electronics VM-1120 User Manual
Kramer Electronics, Ltd.
Preliminary
USER MANUAL
Model:
VM-1120
1:10 Balanced Stereo Audio Distributor
Contents
Contents
1
Introduction 1
2
Getting Started 1
2.1 Quick Start 2
3
Overview 3
4
Your Balanced Stereo Audio Distributor 3
5
Installing the VM-1120 in a Rack 6
6
Connecting Your Balanced Stereo Audio Distributor 6
6.1 Connecting a 1:20 Mono DA 7
6.2 Connecting a 2x1:10 Mono DA 8
6.3 Connecting a 1:10 Stereo DA 9
6.4 Connecting a 2x1:5 Stereo DA 10
7
Setting the VM-1120 11
8
Technical Specifications 12
Figures
Figure 1: VM-1120 1:10 Balanced Stereo Audio Distributor 4
Figure 2: 1:20 Mono DA Configuration 7
Figure 3: 2x1:10 Mono DA Configuration 8
Figure 4: 1:10 Stereo DA Configuration 9
Figure 5: 2x1:5 Stereo DA Configuration 10
Figure 6: Using the Selector Button 11
Tables
Table 1: Front Panel VM-1120 1:10 Balanced Stereo Audio Distributor Features 5
Table 2: Rear Panel VM-1120 1:10 Balanced Stereo Audio Distributor Features 5
Table 3: VM-1120 Technical Specifications 12
i
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 that are clearly
defined by function.
Thank you for purchasing your Kramer VM-1120 1:10 Balanced Stereo
Audio Distributor.
This product is ideal for the following typical applications:
Audio duplication and production studios, delivering undiminished
quality duplicates
Recording studios
Broadcast studios for on-line signal distribution
The package includes the following items:
VM-1120 1:10 Balanced Stereo Audio Distributor
Power cord2
This user manual3
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 cables4
1 GROUP 1: Distribution Amplifiers; GROUP 2: Switchers a nd 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 We recommend that you use only the power cord supplied with this device
3 Download up-to-date Kramer user manuals from our Web site at http://www.kramerelectronics.com
4 The complete list of Kramer cables is on our Web site at http://www.kramerelectronics.com
1
Getting Started
2.1 Quick Start
This quick start chart summarizes the basic setup and operation steps.
2
KRAMER: SIMPLE CREATIVE TECHNOLOGY
Overview
3 Overview
The VM-1120 is a high performance balanced stereo audio DA (distribution
amplifier) using XLR connectors that includes:
Front panel output level trimmer controls
Active J-FET amplifying circuitry that ensures hum-free, full-
bandwidth operation
A high-power discrete buffering system providing excellent
performance
You can configure your VM-1120 as a mono DA (2x1:10 or 1:20) or as a
stereo DA (2x1:5 or 1:10).
Achieving the best performance means:
Connecting only good quality connection cables, thus avoiding
interference, deterioration in signal quality due to poor matching,
and elevated noise levels (often associated with low quality
cables)
Avoiding interference from neighboring electrical appliances that
may adversely influence signal quality
Positioning your Kramer VM-1120 in a location free from
moisture and away from excessive sunlight and dust
4 Your Balanced Stereo Audio Distributor
Figure 1 illustrates the front and rear panels of the VM-1120. Table 1 and
Table 2 define the front and rear panels of the VM-1120, respectively.
3
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