K R A ME R E LE CT R O N IC S L TD .
Contents 1 Introduction 1 2 2.1 2.2 2.3 3 3.1 Getting Started Achieving the Best Performance Safety Instructions Recycling Kramer Products Overview Defining the VM-50AN 1:5 Audio Distributor 2 2 3 3 4 4 4 4.1 4.2 4.
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.
2 Getting Started We recommend that you: Unpack the equipment carefully and save the original box and packaging materials for possible future shipment i 2.1 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).
2.2 Safety Instructions ! 2.3 Caution: There are no operator serviceable parts inside the unit Warning: Use only the Kramer Electronics input power wall adapter that is provided with the unit Warning: Disconnect the power and unplug the unit from the wall before installing 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.
3 Overview The VM-50AN is a high-performance distribution amplifier for balanced and unbalanced stereo audio signals. It takes one balanced or unbalanced stereo input and distributes the signal simultaneously to ten stereo outputs (five balanced and five unbalanced).
# Feature Function 1 POWER Switch Illuminated switch supplying power to the unit 2 INPUT MODE BAL/UNBAL Button When released, selects the balanced stereo audio input when pushed in, selects the unbalanced stereo audio 3 RIGHT LEVEL Trimmer Adjusts the right output signal level (use a small screwdriver) 4 LEFT LEVEL Trimmer Adjusts the left output signal level (use a small screwdriver) 5 INPUT 3.
4 Using Your VM-50AN 1:5 Audio Distributor i Always switch off the power to each device before connecting it to your VM-50AN. After connecting your VM-50AN, connect its power and then switch on the power to each device. This section describes how to connect the VM-50AN as: 4.1 A balanced stereo 1:5 audio distributor, see Section 4.1 An unbalanced stereo 1:5 audio distributor, see Section 4.2 A 1:10 audio distributor, see Section 4.
Figure 2: Connecting the VM-50AN as a Balanced Stereo 1:5 Audio Distributor 4.2 Connecting the VM-50AN as an Unbalanced Stereo 1:5 Audio Distributor To connect the VM-50AN as an unbalanced stereo 1:5 audio distributor, as the example in Figure 3 illustrates, do the following: 1. Connect the unbalanced stereo audio source (for example, a PC sound card) to the INPUT mini 3.5mm socket. 2. Connect up to five unbalanced stereo audio acceptors (for example, balanced stereo recorders) to the OUT mini 3.
Figure 3: Connecting the VM-50AN as an Unbalanced Stereo 1:5 Audio Distributor 4.3 Connecting the VM-50AN as a 1:10 Audio Distributor To connect the VM-50AN as a 1:10 audio distributor, as the example in Figure 4 illustrates, do the following: ! Warning: Both formats cannot be connected to the machine at the same time, as they share some of the input connections 1.
3. Connect the 12V DC power adapter to the power socket, connect the adapter to the mains electricity, and then turn on the power switch. 4. Adjust the right and/or left output signal level, if required. Insert a screwdriver into the hole and carefully rotate it, to trim the level.
5 Technical Specifications INPUTS: 1 balanced stereo audio, +4dBm 50k on detachable terminal block connector 1 unbalanced stereo audio, 1Vpp/50k on mini 3.5mm socket OUTPUTS: 5 balanced stereo audio, +4dBm 50 on detachable terminal block connectors 5 unbalanced stereo audio, +22dBm 470 on mini 3.5mm sockets MAX. OUTPUT LEVEL: >24dBm BANDWIDTH: >40kHz; fully loaded S/N RATIO: 84dB, unweighted CONTROLS: Level (for right and left): 0.4dB to 9.
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: www.kramerelectronics.com E-mail: info@kramerel.
