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Summary of Contents for Alto DI1
- Page 1 User's Manual DIRECT BOX www.altoproaudio.com Version 2.4 September 2005 English...
- Page 2 SAFETY RELATED SYMBOLS result in damage to the product and possibly the user. Unplug the product before electrical storms CAUTION occur and when unused for long periods of RISK OF ELECTRIC SHOCK DO NOT OPEN time to reduce the risk of electric shock or fire.
- Page 3 Operating Conditions Servicing Always install in accordance with the Refer all servicing to qualified service manufacturer's instructions. personnel only. Do not perform any servicing other than To avoid the risk of electric shock and those instructions contained within the damage, do not subject this product to User's Manual.
- Page 4 The DI1 Direct Box has several basic functions: converting a high impedance signal to a low impedance signal; converting a "hot" instrument or line level (and sometimes even speaker level signal) signal to a microphone level signal suitable for connection to the Mic Input of a mixing console etc.
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Page 5: Table Of Contents
TABLE OF CONTENT 1. INTRODUCTION ..................5 YOUR DI 1 FEATURES ................5 CONTROL ELEMENTS ................5 3.1 The Front Panel 3.2 The Rear Panel APPLICATIONS ...................7 4.1 When the input signal is a Bass Guitar 4.2 When the input signal is a microphone 4.3 How to convert a strong signal into MIC level signal 4.4 How to isolate the instrument on stage from the mixing console TECHNICAL SPECIFICATIONS... -
Page 6: Introduction
1. INTRODUCTION DI stands for " Direct Injection" and DI Boxes are also called Direct Boxes. You need to use Direct Boxes if you wish to convert a high impedance instrument signal or an un- balanced signal into a format that will be suitable for direct connection into a mixer. With the DI 1 Direct Box, a. -
Page 7: The Rear Panel
1. Battery Power Switch This push-button will activate the power supplied by the internal 9 Volt Battery (not supplied). The (2) Led will blink at several seconds intervals. If you are using your DI 1 with external phantom power you can release the switch in order to preserve the battery life. -
Page 8: Applications
8. Input Connectors Both XLR and unbalanced 1/4" TRS jack input connectors are supplied in your DI 1 Direct Box for maximum flexibility 9. Link Connector This 1/4" TRS jack will output the incoming signal directly being wired in parallel with the Input Connectors. -
Page 9: When The Input Signal Is A Microphone
4.2 When the input signal is a microphone In this way the unbalanced output of a microphone is converted into a balanced one. In such way you can cover a longer distance from the microphone to the mixer still avoiding noise problems. From a Microphone To a Microphone Input of a mixing console Input... -
Page 10: Technical Specifications
5. TECHNICAL SPECIFICATIONS 5.1 Specifications Inputs Inputs 1/4" jack unbal. In/ Link Out XLR unbalanced In Input Impedance max 250kOhm Maximum Input Level +2/+22/+42 dBm Outputs Outputs XLR balanced Out Load Impedance >600Ohm Maximum Output Level +6dBm System specifications Bandwidth (100kOhm) 10Hz to 200kHz( 3dBm) Bandwidth (600Ohm) 10Hz to 45kHz( 3dBm) -
Page 11: Block Diagram
5.2 Block Diagram... -
Page 12: Warranty
6. WARRANTY 1. WARRANTY REGISTRATION CARD To obtain Warranty Service, the buyer should first fill out and return the enclosed Warranty Registration Card within 10 days of the Purchase Date. All the information presented in this Warranty Registration Card gives the manufacturer a better understanding of the sales status, so as to purport a more effective and efficient after-sales warranty service. - Page 13 3.5 In no event shall be liable for any incidental or consequential damages. Some states do not allow the exclusion or limitation of incidental or consequential damages, so the above exclusion or limitation may not apply to you. 3.6 This warranty gives you the specific rights, and these rights are compatible with the state laws, you may also have other statutory rights that may vary from state to state.
- Page 14 No. 1, Lane 17, Sec. 2, Han Shi West Road, Taichung 40151 Taiwan http://www.altoproaudio.com Tel: 886-4-22313737 email: alto@altoproaudio.com Fax: 886-4-22346757 All rights reserved to ALTO. All features and content might be changed without prior notice. Any photocopy, translation, or reproduction of part of this manual without written permission is forbidden. Copyright 2005 SEIKAKU GROUP NF00968-2.4...
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