Genex GXD8 Operational Manual
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Genex GXD8 Operational Manual

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GXD8 Operational Manual
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Revision 1.0
interstage
Phistersvej 31, 2900 Hellerup, Danmark
Telefon 3946 0000, fax 3946 0040
www.interstage.dk
- pro audio with a smile

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Summary of Contents for Genex GXD8

  • Page 1 L i t e d ……………………………………………………………………………. GXD8 Operational Manual … … … … … … … … … … … … … … … … … … … … … … … … … … … … … Revision 1.0...

  • Page 2: Table Of Contents

    Power ............................1 Location............................1 Mounting Positions........................1 Conformity ..........................1 Technical Support........................1 LAYOUT OF THIS MANUAL......................2 INTRODUCTION TO THE GXD8 ....................... 3 Description..........................3 ............................3 PTIONS FRONT PANEL DESCRIPTION ......................4 Panel Buttons ..........................4 AUDIO............................... 5 ..........................

  • Page 3: Important Notes

    Important Notes Unpacking After unpacking the GXD8, save all the packing materials in case you ever need to ship the unit. Thoroughly inspect the GXD8 for signs of damage. Report any shipment damage to the carrier at once. The following accessories are included with the GXD8:- 1 .

  • Page 4: Layout Of This Manual

    GXD8 Operational Manual Rev 1.0 Layout of this Manual Layout of this Manual Sections in this manual appear in the following order. 1 . A brief introduction to the feature set and a list of options. 2 . A detailed front panel description with a functional description of every front panel button and display.

  • Page 5: Introduction To The Gxd8

    The front panel also includes 8 high resolution peak power meters (PPMs), one for each channel. As standard, the GXD8 is fitted with four AES/EBU digital inputs providing eight channels of analogue audio output up to 96kHz and four channels of output for 192kHz (an additional four channels are available via the AES expansion card).

  • Page 6: Front Panel Description

    GXD8 Operational Manual Rev 1.0 Front Panel Description Front Panel Description Panel Buttons 1. Mute 13. PPM DISPLAY Mutes the digital audio output from the unit The PPM displays consists of eight columns of 14 segments each, 2. Over Sensitivity representing channels 1 to 8 respectively.

  • Page 7: Audio

    GXD8 Operational Manual Rev 1.0 Audio Audio Audio Formats This section describes how to configure the audio output section of the GXD8. The following parameters can be adjusted; Standard Input Format AES. Input/Output Formats Available Through Expansion Cards AES (expansion card to provide 8 channel dual wire 192kHz output)

  • Page 8: Bit Split Decode

    PPMs will still display the input level. Single-ended Output It is possible to connect the balanced output of the GXD8 to a single-ended input. However, as the output is electronically balanced, the following precautions should be followed or the audio will be very distorted and noisy: •...

  • Page 9: Clocks

    However, operating with the GXD8 in master mode is not always possible, so the unit provides several methods for locking to external sources where necessary.
  • Page 10 Note that when locked to a clock rate of 88.2kHz or 96kHz only single or dual-wire mode may be selected. NOTE: When either of the pull-up / pull-down LEDs are lit, the GXD8 is using a fast reacting, wide locking RC Phase Locked Loop instead of its variable crystal oscillators. As a result, the GXD8 may not notice if you subsequently change the incoming sample rate, particularly if you change from a ±0.1% modified to the unmodified rate.

  • Page 11: Meters And Input Level

    Below each PPM is a trim position to set up the input level for each channel. The output gain range is from –10dBu to +4dBu (for a –18dBFS input level). Therefore for full-scale (0dBFS) the GXD8 can output from +8dBu to +22dBu.

  • Page 12: Back Panel

    • One work-clock output on 75Ω BNC • Two slot interfaces. The top slot is Slot One. These accept a range of Genex options cards • One AC mains input on an IEC connector. Mains supply must be 100-120V or 200-240V, 50/60Hz.

  • Page 13: Specification

    GXD8 Operational Manual Rev 1.0 Specification Specification D/A Performance Resolution ........................upto 24 Bits Signal / Noise ratio (un-weighted) ..........better than 113dB @ 20kHz bandwidth THD + Noise ratio .................better than -96dB @ -1dBFS, 1kHz Frequency Response (±0.5dB)..............5Hz to 22kHz @ 48kHz Fs...

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