Focusrite Scarlett OctoPre User Manual
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Focusrite Scarlett OctoPre User Manual

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User Guide
www.focusrite.com
Version 1.0

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Summary of Contents for Focusrite Scarlett OctoPre

  • Page 1 User Guide www.focusrite.com Version 1.0...

  • Page 2: Table Of Contents

    Scarlett OctoPre as Clock Source Master via word clock .......

  • Page 3: Overview

    88.2, or 96 kHz, or four channels at 176.4 or 192 kHz provided, of course, that the receiving interface is able to handle the same number of channels at the sample rate in use. The Scarlett OctoPre is an ideal “expansion” unit for adding up to eight more inputs to any audio interface with ADAT I/O.

  • Page 4: Box Contents

    Box Contents Along with your Scarlett OctoPre you should have: • AC mains cable with IEC connector • 4 x self-adhesive feet – stick to underside of unit for table-top use Printed on the inside of the box: • Getting Started Guide •...

  • Page 5: Hardware Features

    SYNC – a soft switch which selects the digital sync source for the Scarlett OctoPre (Internal or Word Clock), the selected source being indicated by one of the adjacent red LEDs. The source in use is stored in memory so that it is retained when the unit is switched off.

  • Page 6: Rear Panel

    17. AC mains – standard IEC receptacle. The Scarlett OctoPre is fitted with a “Universal” power supply, and will run from any AC mains voltage from 100 to 240 V, at 50 or 60 Hz.

  • Page 7: Using The Scarlett Octopre

    A-to-D converter, which would result in distortion. Pad Switch Each channel of the Scarlett OctoPre is equipped with a switchable 8 dB PAD. Selecting PAD increases the headroom of the input stage, and should be used to reduce mic or line level signals which are ‘too hot’.

  • Page 8: Line Outputs

    LED should never light. Digital Outputs Use the ADAT OUT optical port(s) [13] to connect the Scarlett OctoPre to the ADAT input(s) of an audio device using TOSLINK optical cable(s). The right-hand port (as viewed from the rear of the unit) can transmit eight channels of audio at 44.1 kHz or 48 kHz sample rate via a single optical cable.

  • Page 9: Digital Synchronisation

    Scarlett OctoPre as Clock Source Master via ADAT: Connect the Scarlett OctoPre to the receiving digital device via the ADAT OUT port(s) and ensure that the receiving device is set to source its clock from its ADAT input and also that the sample rates on both devices match.

  • Page 10: Example Setups

    ADAT using Focusrite Control Optical TOSLINK Here ADAT OUT on the Scarlett OctoPre is connected to OPTICAL IN on a Scarlett 18i20 audio interface with a single optical cable. Both units are running at 44.1 kHz sample rate. The OctoPre’s clock source is set to INTERNAL, and the 18i20 is synchronised to it because its clock source is set to ADAT (via Focusrite Control).

  • Page 11: Scarlett Octopre With Audio Interface - Smux-Ii And Smux-Iv Modes

    Scarlett OctoPre ANALOGUE MIXING DESK This setup uses the Scarlett OctoPre’s mic pre-amplifiers to provide a high quality “front end” for an analogue mixing desk. Use a pre-made loom to connect the OctoPre’s LINE OUTPUTS socket to eight line inputs on the mixing desk; this will need eight ¼” TRS jacks on one end and eight connectors appropriate to the desk’s line inputs on the other.

  • Page 12: Scarlett Octopre With Analogue Mixing Desk And Digital Record/Backup

    This example shows how the setup in Example 4 can be extended to add simultaneous digital recording, with or without secondary backup. Because the Scarlett OctoPre’s ADAT OUT ports are always active, you can record the performance on a DAW (or other recording device) with an ADAT interface. The example shows two Scarlett 18i20s:...

  • Page 13: Scarlett Octopre Technical Specifications

    SCARLETT OCTOPRE TECHNICAL SPECIFICATIONS Performance Specifications (All performance figures are measured to the AES17 standard). Sample Rates Supported sample rates 44.1 kHz, 48 kHz, 88.2 kHz, 96 kHz, 176.4 kHz & 192 kHz Microphone Inputs Frequency Response 20 Hz to 20 kHz, +0.5/-1.5 dB...

  • Page 14: Physical And Electrical Characteristics

    Physical and Electrical Characteristics Analogue Inputs “Combo XLR” sockets on rear panel; for Line use ¼” TRS jack, Connectors for Inst use ¼” TS jack. Mic/Line switching Automatic Line/Instrument switching via front 2 x front panel switches (Chs. 1 & 2 only) Phantom power +48 V, switchable Chs.

  • Page 15: Troubleshooting

    COPYRIGHT AND LEGAL NOTICES Focusrite is a registered trade mark and Scarlett OctoPre is a trade mark of Focusrite Audio Engineering Limited. All other trade marks and trade names are the property of their respective owners.

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