OctoPre .: Focusrite Answerbase

Octopre Troubleshooting Guide
No LEDs illuminate • Is the POWER switched on? • Is the correct mains voltage being used for your unit? If not, the fuse may blow, requiring the correct fuse to be refitted. (Click here to find...
2009-06-29 Views: 2414

Octopre heat and fan noise.
The Octopre will get very hot when it is on since it uses class A circuitry - do not worry - this is normal!! There is a cooling fan in the Octopre whose speed is governed by a thermistor so the...
2005-08-04 Views: 3389

Can I connect my Octopre direct to my computer?
This is not possible - you will need an audio interface/sound card to connect the outputs of the Octopre to. The optional ADC cards for the Octopre give you the option of a digital audio output...
2005-08-03 Views: 4014

Connecting the Octopre via analogue to an unbalanced system - how to wire the 25 pin connector.
The pinout for the 25 pin line out connector on the Octopre can be found here. The line outputs are balanced so you will need to ensure that the 25 pin connector is wired correctly if you intend...
2005-09-26 Views: 4964

Octopre dynamics control - what it does and how to use it.
So how does the dynamics circuit in the OctoPre actually operate?The Opto-driven dynamic circuit is not only a limiter and compressor, but also is split into two bands to improve sound quality....
2005-08-03 Views: 3895

What are the Octopre A/D converter specs?
The Octopre ADC specs are:0dBFs = +22dBuS/N = -109dBfs measured with A weighting filter at 48Khz sample frequency.THD = <0.003% at 0dBfs with 1KHz signal measured with 20Hz/22Khz band pass...
2005-08-02 Views: 3990

Can I use the digital and analogue outputs at the same time?
The analogue outputs are always active and you can use them simultaneously with the digital outputs.
2005-08-02 Views: 4131

Octopre power rating.
The Octopre is rated at 45W.
2005-08-03 Views: 2898

Are the Octopre line inputs routed through the mic pre circuitry?
The line inputs are not routed through the mic pre amp section but through a line level amp and then through the filter, dynamics and converter. When the 'line' button is pressed in the level knob...
2005-08-03 Views: 3686

Octopre D Sub connector thread size.
The Octopre connectors use a standard 4-40 thread (most all D Sub connectors will do).
2005-08-03 Views: 4743

I can hear distortion on channels 2,4,6 and 8 - how can I get rid of it?
This has been known with early Octopre cards and can be fixed with a firmware update for the ADC card. If you are experiencing this problem then please contact us for further advice.
2005-08-03 Views: 3103

What is the signal path in the Octopre?
The phantom power circuit is only on the XLR mic input. The line switch swaps the channel input between the XLR inputs and the line inputs (25 pin connector). Then the signal passes through the...
2005-08-04 Views: 2451

Should I leave my Octopre switched on when not in use?
It is best to turn the unit off when it is not being used so as to let the capacitors discharge and save wear on the resistors therefore giving the unit a slightly longer shelf life.
2005-08-04 Views: 2815

Can I make the LEDs on my Octopre less bright?
Unfortunately not but if you find them too bright then try putting some pieces of masking tape over them (not the markings though) so that they still shine through.
2005-08-04 Views: 2824

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