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Kramer Electronics, Ltd.
Preliminary
USER MANUAL
Model:
910
Digital Audio Preamplifier
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Contents Contents 1 Introduction 1 2 Getting Started 1 2.1 Achieving the Best Performance 2 2.2 Safety Instructions 2 2.3 Recycling Kramer Products 2 2.4 Quick Start 3 3 Overview 4 4 Your 910 Digital Audio Preamplifier 4 5 Installing the 910 in a Rack 8 6 Connecting the 910 Digital Audio Preamplifier 9 6.1 Connecting the RS-232 Port 10 6.2 Connecting the ETHERNET Port 10 6.2.1 Connecting the ETHERNET Port Directly to a PC (Crossover Cable) 11 6.2.2 Connecting the ETHERNET Port via
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Contents 10.4 Basic Routing Commands 21 10.5 Preset Commands 21 10.6 Audio Parameter Commands 22 10.7 Identification Commands 23 10.8 Network Setting Commands 23 10.9 Machine Information Commands 24 10.10 Command Terms 24 10.11 Entering Commands 25 10.12 Command Forms 25 10.13 Command Chaining 25 10.14 Maximum String Length 26 10.15 Backward Support 26 Figures Figure 1: 910 Digital Audio Preamplifier 5 Figure 2: Connecting the 910 Digital Audio Preamplifier 10 Figure 3: Local Are
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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 1,000-plus different models now appear in 11 groups that are clearly defined by function. Thank you fo
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Getting Started 2.1 Achieving the Best Performance To achieve the best performance: • Use only good quality connection cables (we recommend Kramer high-performance, high-resolution cables) to avoid interference, deterioration in signal quality due to poor matching, and elevated noise levels (often associated with low quality cables) • Do not secure the cables in tight bundles or roll the slack into tight coils • Avoid interference from neighboring electrical appliances that may
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Getting Started 2.4 Quick Start This quick start chart summarizes the basic setup and operation steps. 3 3
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Overview 3 Overview The 910 is a high-performance stereo audio preamplifier. It accepts balanced and unbalanced stereo audio, S/PDIF digital audio, and microphone inputs, processes the signals, and outputs them to balanced, unbalanced and S/PDIF outputs. The 910 has the following features: • Grouped audio controls: volume, balance, bass, mid, treble, loudness, equalizer, delay, mute, expand and compress • Selectable condenser or dynamic mic input with talk over, mix and override contr
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Your 910 Digital Audio Preamplifier Figure 1: 910 Digital Audio Preamplifier 5
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Your 910 Digital Audio Preamplifier Table 1: 910 Digital Audio Preamplifier Functions # Feature Function 1 IR Receiver The red LED illuminates when receiving signals from the infrared remote control transmitter 2 MUTE Button Press to toggle between turning off (muting) and turning on the audio output 3 INPUT Selector Buttons Press a button to select an input (1 to 4) 4 MID Button Press to adjust midrange frequencies on the selected input 5 BASS Button Press to adjust low frequencies on
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Your 910 Digital Audio Preamplifier # Feature Function 29 FACTORY DEFAULT Button Press to revert to the default settings, including all the configured buttons 30 USB (PROGRAM) Connector Connect to the PC using a USB cable for remote control 31 RS-232 9-pin D-sub (F) Port Connect to the RS-232 connector on the AV equipment or a PC or other serial controller for remote control 32 ETHERNET RJ-45 Connector Connects to the PC or other serial controller through computer networking LAN for remo
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Installing the 910 in a Rack 5 Installing the 910 in a Rack This section describes how to install the 910 in a rack. 8 KRAMER: SIMPLE CREATIVE TECHNOLOGY
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Connecting the 910 Digital Audio Preamplifier 6 Connecting the 910 Digital Audio Preamplifier 1 To connect the 910 as illustrated in the example in Figure 2 : 1. Connect the inputs: • Connect an unbalanced stereo source (for example, a tape recorder) to the left and right INPUT 1 RCA connectors • Connect an balanced stereo source (for example, a tape recorder) to the left (L+, L-), right (R+, R-) and ground (G) terminals on the INPUT 2 terminal block connectors • Connect a digital audi
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Connecting the 910 Digital Audio Preamplifier Figure 2: Connecting the 910 Digital Audio Preamplifier 6.1 Connecting the RS-232 Port You can connect to the unit via a straight pin-to-pin RS-232 connection, using for example, a PC. Connect the RS-232 9-pin D-sub port on the unit via a straight cable (pin 2 to pin 2, Pin 3 to pin 3, and pin 5 to pin 5) to the RS-232 9-pin D-sub port on the PC. Is a shielded cable is used, connect the shield to pin 5. Note: There is no need to connect any
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Connecting the 910 Digital Audio Preamplifier • To connect to a network hub or network router with a straight- through cable, see Section 6.2.2 • To configure the Ethernet port, see Section 6.2.3 6.2.1 Connecting the ETHERNET Port Directly to a PC (Crossover Cable) You can connect the Ethernet port of the 910 to the Ethernet port on your PC, via a crossover cable with RJ-45 connectors. This type of connection is recommended for identification of the factory default IP Address of the
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Connecting the 910 Digital Audio Preamplifier 6. Select Use the following IP address, and fill in the details, (see Figure 4). 7. Click OK. Figure 4: Internet Protocol (TCP/IP) Properties Window 6.2.2 Connecting the ETHERNET Port via a Network Hub (Straight Through Cable) You can connect the Ethernet port of the 910 to the Ethernet port on a network hub or network router, via a straight through cable with RJ-45 connectors. 6.2.3 Configuring the Ethernet Port 1 To configure the Eth
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Connecting the 910 Digital Audio Preamplifier Figure 5: Connect Screen 2. Select the method to connect to the Ethernet port of the 910. Select: 1 • Ethernet, if you know the IP address number or the machine name. The default name for the machine is 2 KRAMER_XXXX • Serial, if you are connected via a serial port 3. Click OK. The Device Properties window appears, (see Figure 6). 1 The default IP address is 192.168.1.39 2 The fou
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Connecting the 910 Digital Audio Preamplifier Figure 6: Device Properties Screen 4. If required, make changes and press Set. If not, click Close. 6.3 Connecting via USB To connect the 910 via the USB port, you must plug the USB cable into the PC and install the Kramer USB driver downloaded from our Web site at http://www.kramerelectronics.com. 6.4 Connecting a Microphone to the XLR Input Connect a microphone to the XLR input as illustrated in Figure 7. Figure 7: Connecting a Microph
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Operating the 910 Digital Audio Preamplifier 7 Operating the 910 Digital Audio Preamplifier You can operate your 910 using: • The front panel buttons, (see Section 7 .1) • Serial commands via the RS-232/USB/Ethernet ports transmitted by a touch screen system, PC, or other serial controller, (see Section 7.2) • RC-IR2 Infrared remote control transmitter, (see Section 7 .3) 7.1 Using the Front Panel Buttons The 910 is operated from its front panel buttons as follows (for an explanation
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Operating the 910 Digital Audio Preamplifier Table 2: 910 Front Panel Button Functions Button Display Function Meaning/Range Notes MUTE Mute When pressed, stops all output INPUT 1 Unbalanced stereo 1 2 INPUT 2 Balanced stereo Only one input lights when selected, multiple buttons light when MIX pressed INPUT 3 S/PDIF digital stereo 3 4 INPUT 4 Microphone Bass -40 to +40 Adjusts low-level tones BASS TREB Treble -40 to +40 Adjusts high-level tones Mid -40 to +40 Adjusts
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Operating the 910 Digital Audio Preamplifier 7.2 Controlling the 910 from the PC To operate your device remotely from your PC over the RS-232, USB or Ethernet ports, you need to download and install Kramer's 910 Control 1 Application . Figure 8: 910 Control Application Screen For an explanation of all control commands, see Section 10. 7.3 Using the Infrared Remote Controller To operate your device using the RC-IR2 infrared remote controller, see the User Manual packed with the remote
