Focusrite clarett octopre, Руководство пользователя

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3
OVERVIEW
Introduction
Thank you for purchasing a Clarett OctoPre, an eight channel mic-pre expansion unit incorporating
high quality Clarett analogue pre-amplifiers with the unique Focusrite AIR function, plus send-and-
return insert points on each channel. As well as offering purely analogue operation for stand alone
live use, the Clarett OctoPre includes both A-to-D and D-to-A conversion, providing a perfect solution
for expanding your input and output capabilities via ADAT for recording.
This User Guide provides a detailed explanation of the hardware to help you achieve a thorough
understanding of the product’s operational features. We recommend that you take the time to read
through the Guide, whether you’re new to professional audio or a more experienced user, so that you
are fully aware of all the possibilities the Clarett OctoPre has to offer.
If the User Guide sections do not provide the information you need, be sure to consult
https://support.focusrite.com , which contains a comprehensive collection of answers to common
technical support queries.
Features
The Clarett OctoPre is an eight-channel pre-amplifier for use with microphone, line and instrument
input signals. It converts the inputs into multi-channel, 24-bit digital audio at sample rates up to
192 kHz. Both analogue and digital outputs are provided: the digital outputs are in ADAT format on
optical TOSLINK connectors, which can be easily routed to ADAT inputs on your studio recording
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 “expansion” unit for adding eight more inputs to an existing audio interface
such as other members of the Focusrite Clarett range.
The Clarett OctoPre is a bidirectional unit: it is also equipped with ADAT format digital inputs and
balanced analogue outputs. It incorporates an ADAT-to-LINE mode, making it the perfect interface
for routing tracks from your DAW to an analogue mixing console.
The Clarett OctoPre can be easily synchronised with other items of digital audio equipment in your
studio, either as a slave to an external word clock signal, or by acting as the master clock source
itself.
An important feature of all models in the Clarett range is the new design of analogue preamplifier.
In addition to their class-leading dynamic range and ability to provide all the gain you’re ever likely to
need, the circuitry now includes the Focusrite AIR function. Individually selectable on each channel,
AIR subtly modifies the pre-amp’s frequency response to model the impedance and resonance
characteristics of Focusrite’s classic transformer-based ISA mic preamps. When recording with
good quality microphones, you will notice an enhanced clarity and definition in the important mid
frequency range, just where it is most needed for vocals and many acoustic instruments.