background image

17

Physical and Electrical Characteristics

Analogue Inputs 1 & 2

Connectors

“Combo  XLR”  sockets  on  front  panel;  for  Line  use  ¼”  TRS 

jack, for Inst use ¼” TS jack.

Mic/Line switching

Automatic

Line/Instrument switching

via front 2 x front panel switches

Phantom power

+48 V, switchable Chs. 1-4, 5-8 in groups

Analogue Inputs 3 to 8
Connectors

“Combo XLR” sockets on rear panel; for Line use ¼” TRS jack.

Mic/Line switching

Automatic

Phantom power

+48 V, switchable Chs. 1-4, 5-8 in groups

Outputs
Analogue outputs

8 x balanced, on rear panel 25-way female D-sub

Other I/O

ADAT I/O

4 x TOSLINK optical connectors:

8 channels at 44.1/48 kHz (both ports)

8 channels at 88.2/96 kHz (Chs 1-4, 5-8)

4 channels at 176.2/192 kHz (Chs 1 & 2, 3 & 4)

Word clock output

2.5 V (correctly  terminated); BNC connector

Word clock input

BNC connector

Weight and Dimensions

W x D x H

482 mm (1U) x 44.5 mm x 286 mm 

19.0” (1U) x 1.75” x 11.3”

Weight

4.15 kg

9.15 lbs

Содержание clarett octopre

Страница 1: ...User Guide www focusrite com Version 1 0 ...

Страница 2: ...s 10 ADAT to Line mode 11 Example Setups 12 1 Clarett OctoPre with audio interface OctoPre as clock source Master 12 2 Clarett OctoPre with audio interface audio interface as a clock source Master 12 3 Clarett OctoPre with Clarett 8PreX SMUX II and SMUX IV modes 13 4 Clarett OctoPre with analogue mixing desk 13 5 Clarett OctoPre in ADAT Line mode 14 6 Using Clarett OctoPre s inserts to record drum...

Страница 3: ...g system or any other ADAT equipped interface using optical cables The Clarett OctoPre can transmit and receive eight channels of audio at sample rates of 44 1 48 88 2 or 96 kHz or four channels at 176 4 or 192 kHz A switchable analogue INSERT function is provided on each input channel to permit the connection of external processors such as compressors or noise gates The OctoPre is an ideal expans...

Страница 4: ... via a 2 pole TS jack plug When INST is off the inputs are suitable for the connection of line level signals Line level signals may be connected either in balanced form via a 3 pole TRS jack or unbalanced via a 2 pole TS jack Each switch has an internal red LED to confirm selection 3 48V 1 4 5 8 two latching switches each enabling 48 V phantom power at the XLR contacts of four inputs Channels 1 to...

Страница 5: ...he current 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 11 a green Locked LED which illuminates when the unit has locked to the available sync source indicating that it is ready to use 12 ADAT LINE this soft switch modifies the operating mode of the unit When not selected Channels 1 to 8 feed both ...

Страница 6: ...re the insert send so that excessive signal level is not sent to external equipment 17 INSERTS 3 to 8 6 x TRS jack sockets providing the insert points for Channels 3 to 8 these are electrically identical to 16 18 OPTICAL OUT two TOSLINK connectors providing the digital outputs of the unit Utilisation of the two connectors is sample rate dependent as follows Sample Rate OUTPUT 1 RH port OUTPUT 2 LH...

Страница 7: ...5 Gnd 7 Output 4 hot 20 Output 4 cold 8 Output 4 Gnd 21 Output 3 hot 9 Output 3 cold 22 Output 3 Gnd 10 Output 2 hot 23 Output 2 cold 11 Output 2 Gnd 24 Output 1 hot 12 Output 1 cold 25 Output 1 Gnd 13 n c 21 WORD CLOCK OUT a BNC connector carrying the Clarett OctoPre s word clock this may be used to synchronise other digital audio equipment forming part of the recording system The source of sampl...

Страница 8: ...erformance Specifications on page 16 for input sensitivity specifications The red O L LED should never illuminate if it does the gain is set too high Phantom Power The two 48V switches apply 48 V phantom power to Mic inputs 1 to 4 and 5 to 8 respectively Phantom power is required by most condenser capacitor microphones and also active ribbon microphones Phantom power is only applied to the XLR con...

Страница 9: ...he desired sample rate frequency It is essential that the sample rate selected on the Clarett OctoPre matches the sample rate set on the receiving digital device Digital Synchronisation Two synchronisation options are available Clarett OctoPre as Clock Source Master Connect the OctoPre to the receiving digital device via the OPTICAL OUT port s and ensure that the receiving device is set to source ...

Страница 10: ...d definition in the important mid frequency range just where it is most needed for vocals and many acoustic instruments Inserts Each pre amplifier channel includes a switchable insert point for the connection of external processing equipment such as compressors or noise gates The insert comprises a send the output of the channel s input stage and a return an input to the channel s output stage wit...

Страница 11: ...nversion DEMULTIPLEXER and D A CONVERSION OPTICAL INPUTS Ch 1 Ch 8 LINE OUTPUTS 1 8 ADAT LINE mode not selected ADAT LINE mode selected 8 chs 8 chs OPTICAL OUTPUTS This mode enables the Clarett OctoPre be used to connect an 8 channel ADAT format output from a DAW for example to a set of analogue inputs typically the channels of an analogue mixing console to permit such a mixer to be used to mix do...

Страница 12: ...hus be ideal for recording a live band It would also be appropriate for any other audio interface which has an ADAT input 2 Clarett OctoPre with audio interface audio interface as a clock source Master Clarett 8PreX Clarett OctoPre Clock set to WORD via the front panel Clock set to Internal via Focusrite Control Here OPTICAL OUT on the Clarett OctoPre is connected to OPTICAL IN on a Focusrite Clar...

Страница 13: ...Clarett 8PreX is the sync master as before This setup is also applicable with 192 kHz sample rate SMUX IV mode each optical cable will then carry two channels of audio The setup in this example would also be appropriate for any other 96 192 kHz capable audio interface with two ADAT inputs and a word clock output 4 Clarett OctoPre with analogue mixing desk Clarett OctoPre ANALOGUE MIXING DESK This ...

Страница 14: ...ng DAW and Focusrite Control Clarett OctoPre 2 Clarett OctoPre 1 To Mixer Channels 11 to 18 To Mixer Channels 1 to 10 To Mixer Channels 19 to 26 ANALOGUE MIXING DESK This example shows how to connect a greater number of DAW tracks to an analogue mixing desk for mixdown The 10 analogue outputs of a Clarett 8PreX interface are connected to desk Channels 1 to 10 Its OPTICAL OUT ports are connected to...

Страница 15: ... Internal via the front panel Clarett 8Pre Clock set to ADAT using Focusrite Control When recording acoustic drums dynamics control may be applied in various ways to get the sound you re after Compression is frequently added to kick and snare drums to thicken up the sound while noise gates are effective on tom toms to minimise spillage between the various drum mics Use looms with a TRS jack on one...

Страница 16: ...128 dBu A weighted Maximum input level 18 dBu 0 5 dB Gain Range 57 dB Line Inputs Frequency Response 20 Hz to 35 kHz 0 1 dB Dynamic Range Insert off 117 dB A weighted Dynamic Range Insert active 115 dB A weighted THD N 0 001 Maximum input level 26 dBu 0 5 dB Gain Range 57 dB Instrument Inputs Frequency Response 20 Hz to 35 kHz 0 1 dB Dynamic Range Insert off 116 dB A weighted Dynamic Range Insert ...

Страница 17: ... rear panel for Line use TRS jack Mic Line switching Automatic Phantom power 48 V switchable Chs 1 4 5 8 in groups Outputs Analogue outputs 8 x balanced on rear panel 25 way female D sub Other I O ADAT I O 4 x TOSLINK optical connectors 8 channels at 44 1 48 kHz both ports 8 channels at 88 2 96 kHz Chs 1 4 5 8 4 channels at 176 2 192 kHz Chs 1 2 3 4 Word clock output 2 5 V correctly terminated BNC...

Страница 18: ...ind articles covering numerous troubleshooting examples COPYRIGHT AND LEGAL NOTICES Focusrite is a registered trade mark and Clarett OctoPre is a trade mark of Focusrite Audio Engineering Limited All other trade marks and trade names are the property of their respective owners 2016 Focusrite Audio Engineering Limited All rights reserved ...

Отзывы: