PRESONUS DigiMax FS User Manual

8-channel preamplifier with 24-bit/96k adat i/o (dual smux).
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24-bit/96k ADAT I/O (dual SMUX)
8-Channel Preamplifier
User's Manual
Version 1.0
© 2006, PreSonus Audio Electronics, Incorporated.
All rights reserved.


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   Summary of Contents for PRESONUS DigiMax FS

  • Page 1

    DIGIMAX FS 24-bit/96k ADAT I/O (dual SMUX) 8-Channel Preamplifier with User’s Manual Version 1.0 © 2006, PreSonus Audio Electronics, Incorporated. All rights reserved.

  • Page 2

    PreSonus repair facility postage prepaid, insured and properly packaged. PreSonus reserves the right to update any unit returned for repair. PreSonus reserves the right to change or improve the design of the product at any time without prior notice. This warranty does not cover claims for damage due to abuse, neglect, alteration or attempted repair by unauthorized personnel, and is limited to failures arising during normal use that are due to defects in material or workmanship in the product.

  • Page 3: Table Of Contents

    1 Overview 1.1 Introduction 1.2 Front Panel 1.3 Back Panel 2 Applications 2.1 Dynamic Microphones 2.2 Phantom Powered Microphones 2.3 Instrument Input 2.4 Connecting and Synchronization 2.5 Hook up diagrams 3 Technical 3.1 Specifications...

  • Page 4: Introduction

    OVERVIEW 1.1 Introduction Thank you for purchasing the PreSonus DigiMax FS™ 8-Channel Preamplifier with 24- bit/96k ADAT I/O (dual SMUX). The DIGIMAX FS is an eight-channel microphone preamplifier, with 24-bit/96k ADAT dual SMUX I/O and word clock I/O. Loaded with direct...

  • Page 5: Front Panel

    OVERVIEW 1.2 Front Panel Class A Mic Pre. Each channel of your DigiMax FS contains a Class A discrete differential input amplifier, providing ultra low noise and wide gain control allowing the DigiMax FS user to boost desirable signal without increasing unwanted background noise.

  • Page 6: Back Panel

    OVERVIEW 1.3 Back Panel Note that all inputs and outputs can be use simultaneously. Inserts. The DigiMax FS features insert points for each input. (RING=SEND) This allows any external processing to be done before the output stage on each channel independently.

  • Page 7

    OVERVIEW BNC In and Out. The BNC input allows an external clock to be connected to the DigiMax FS as a slave. The BNC output allows the DigiMax FS to connect to any BNC input as a master clock. Note that it is not recommended to split the BNC output to clock to multiple devices.

  • Page 8: Dynamic Microphones, Phantom Powered Microphones, Instrument Input, Connecting And Synchronization

    2 A P P L I C A T I O N S 2.1 Dynamic Microphones Dynamic microphones are characterized by lower output levels. Hence, more gain is needed to amplify a dynamic microphone to operating level. Do not use phantom power when using dynamic microphones.

  • Page 9

    APPLICATIONS SMUX SMUX, a newer generation of optical light pipe technology, supports sample rates up to 96k and utilizes two optical cables for channels 1-4 and 5-8, respectively. A set up where you are utilizing eight DigiMax FS preamplifiers and converting to digital optical output at 96K sample rate, connect two optical cables (preferably the same length and brand) from the SMUX outputs on the DigiMax FS (channels 1-4 and 5-8) to SMUX inputs on your digital audio workstation or digital mixer.

  • Page 10

    APPLICATIONS device to the first SMUX source device via BNC, and to sync the first SMUX source device to the DigiMax FS via BNC (or optical) and designate the DigiMax FS as word clock master. A third way would be to set all three devices to external word clock via BNC and to use a master word clock generator and distribution amplifier.

  • Page 11

    APPLICATIONS BNC Sync Many engineers prefer to take care of word clock and audio separately from each other, and you will find BNC cables used to deliver word clock in many quality studios and broadcast facilities worldwide. BNC cables are more rugged, lock into position, and can carry clock signals much farther distances than the standard optical cable.

  • Page 12

    APPLICATIONS Multiple Digital Devices In cases where multiple digital devices are in use, such as multiple DigiMax FS units in conjunction with a digital console, etc., it is important that all devices see the same word clock signal and that the word clock signal is not allowed to attenuate (drop in signal strength).

  • Page 13

    APPLICATIONS control panel software application and/or your multi-channel recording application. Using the DigiMax FS with Pro Tools Below are instructions on setting up a Digi002 with ProTools LE Software (other ProTools systems with ADAT light pipe input are similar) 1.) Plug in the ADAT cable from the optical output of the DigiMax to the optical input of the Digi002.

  • Page 14

    APPLICATIONS 2.5 Hook Up Diagram...

  • Page 15: Specifications

    3 T E C H N I C A L 3.1 Technical Specifications Microphone Preamp (XLR Balanced) All measurements Microphone Input to Direct Output Frequency Response (+0,- 0.5dB) 20Hz to 40KHz Frequency Response (+0/-3.0 dB) 20Hz to 100KHz Input Impedance 1600 Ohm THD+N (unwtd, 1KHz @ +4dBu Output, Unity Gain) <...

  • Page 16

    DC Input Connector Type = 5.5mm OD/2.5mm ID Barrel, Center Positive External Switching Power Supply 90-230VAC/35W As a commitment to constant improvement, PreSonus Audio Electronics, Inc. reserves the right to change any specification stated herein at any time in the future without notification.

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