Alesis IO|2 Document technique
24-bit USB Audio/MIDI Interface
Quick Start Owner’s Manual
Manual de inicio rápido para el usuario
Manuel d’utilisation du propriétaire
Kurzbedienungsanleitung
Manuale rapido di utilizzo
CONTENIDO DE LA CAJA
•INTERFAZ DE AUDIO/MIDI USB IO|2
•CABLE USB
•MANUAL DE INICIO RÁPIDO DEL USUARIO
•INSTRUCCIONES IMPORTANTES DE SEGURIDAD
INHALT DER VERPACKUNG
•IO|2 USB AUDIO/MIDI INTERFACE
•USB KABEL
•KURZBEDIENUNGSANLEITUNG
•WICHTIGE SICHERHEITSHINWEISE
CONTENUE DE LA BOÎTE
•IO|2 AVEC INTERFACE USB AUDIO/MIDI
•CÂBLE USB
•GUIDE D’UTILISATION SIMPLIFIÉ
•CONSIGNES DE SÉCURITÉ
BOX CONTENTS
•IO|2 USB AUDIO/MIDI INTERFACE
•USB CABLE
•QUICK START OWNER’S MANUAL
•IMPORTANT SAFETY INSTRUCTIONS
CONTENUTO DELLA CONFEZIONE
•INTERFACCIA AUDIO/MIDI IO|2 USB
•CAVO USB
•MANUALE RAPIDO DI UTILIZZO
•IMPORTANTI ISTRUZIONI DI SICUREZZA
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IO|2
Quick Start User’s Guide
(English)
2
Introduction
Congratulations on your purchase of the Alesis IO|2 audio/MIDI interface!
We’re proud of this interface and we’ve taken a great deal of care in making the
IO|2 the best sounding, most rugged and easy to use audio interface on the
market.
We’ve made this quick start guide as short as possible, but please read it carefully.
It will guide you through the installation process as well as teach you how to get
the most out of your IO|2 interface.
We hope the IO|2 will serve you well for many years.
Sincerely,
The People of Alesis
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Key Features
Your IO|2 features the following:
•24-bit recording and playback
•Balanced XLR and ¼” inputs with adjustable gain
•Switchable phantom power
•TRS inserts
•High quality mic preamps
•Comprehensive 4-segment input metering
•Low latency ASIO/WDM/Core Audio drivers
•Zero-Latency monitoring
•MIDI and S/PDIF inputs and outputs
•Headphone out with separate volume knob
•Bus powered for operation without power supply
•Ultra-rugged and lightweight case that’s built to last
Computer Requirements
Minimum PC Requirements:
•Pentium III 450 MHz Processor
•128 MB RAM
•Available USB 1.1 Port
•Windows XP (with Service Pack 2 installed)
Recommended PC Requirements:
•Pentium 4 or Athlon Processor
•512 MB RAM
•7,200 RPM Hard Disk Drive
•Available USB 1.1 Port
•Windows XP (with Service Pack 2 installed)
Minimum Macintosh Requirements:
•Any Apple computer with native USB support
•Mac OS X “Jaguar” version 10.2 or later
•128 MB RAM
Recommended Macintosh Requirements:
•G4 733-MHz Processor or faster
•7,200 RPM Hard Disk Drive
•Mac OS X “Jaguar” version 10.2 or later
•512 MB RAM
Memory Requirements
The IO|2 requires a minimum
of 128MB of RAM to operate,
but most audio applications
need more than 128MB of
RAM to run smoothly. If your
computer only has 128 MB of
memory and is sluggish while
running audio applications,
try adding memory to
improve performance.
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Product Registration
Please go to http://www.alesis.com and register your new IO|2.
Registering helps us to keep you up-to-date on any last minute product issues and
driver updates. If you would like, we can also send you information on other
products that might interest you.
By registering with us, you let us know what products you use (or dream about)
and this helps us bring you better products in the future.
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Top Panel Connections
1. Mic Input - Connect a microphone to this input.
2. Guitar/Line Input- Connect a guitar or line-level
instrument to the IO|2 using this connector. Make
sure the “Mic/Line Guitar” switch (see item #4
below) is set correctly.
3. Input Gain Knob - Set the gain level of each
channel with this knob.
4. Mic/Line or Guitar input select – Lets you select the type of instrument
you’ll be using with the Guitar/Line input (see #2 above). Select “Guitar” for
guitars and basses and “Line” for all line-level sources (synths, DATs, etc.)
5. Insert - The insert jack allows you to insert a compressor, EQ, or any other
signal processor in between IO|2’s preamplifier and the A/D converter.
6. +48v Phantom Power Switch - Phantom power switch allows you to power
condenser microphones requiring 48V phantom power. This switch activates
phantom power on both channels.
7. Headphone Output Jack - Plug your headphones into this jack.
8. Headphone Level Knob - Set your headphone level using this knob.
9. Mono/Stereo Monitoring Switch - Allows you to switch your headphones to
mono. This is useful for zero-latency monitoring situations where you may not
want your inputs panned hard left and hard right in your headphones.
10. Monitor Mix Knob - Blend in any amount of zero-latency signal from your
mic/line inputs with the output of your computer.
11. Digital/Analog Input Switch - Select the IO|2’s input source using this
switch. For normal operation, leave this switch set to “analog.” If this switch is
set to “digital,” the S/PDIF input will become active and the Lo-Z, Hi-Z, and
Insert inputs on the IO|2 will be ignored.
12. Main Level Knob - Set the level of the main outputs of the IO|2.
Audio Inputs
Do not use the Mic and
Guitar/Line inputs at the
same time on one channel.
This may overload the
channel and cause distortion.
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Back Panel Connections
1. MIDI Out Connector - Use a five-pin MIDI cable to connect the MIDI out of
the IO|2 to the MIDI input of an external MIDI device.
2. MIDI In Connector - Use a five-pin MIDI cable to connect the output of an
external MIDI device to the MIDI IN of the IO|2.
3. Stereo Main Output - Use balanced (TRS) or unbalanced (TS) ¼” cables to
connect the IO|2 to a mixer or powered studio monitors.
4. S/PDIF Out - Use a 110-ohm coaxial cable to connect the S/PDIF output of
your IO|2 to the digital input of another device.
5. S/PDIF In - Connect the digital output of another
device to your IO|2’s S/PDIF input using a 110-ohm
coaxial cable.
6. USB Connector - Use a standard USB cable to
hook up your IO|2 to the USB 1.1 (or higher)
connection on your computer.
Plug the IO|2 directly into
your computer, and avoid
using a USB hub. Hubs can
interfere with the IO|2’s
audio and MIDI timing
signals.
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Status Lights
1. +48V – Lights up when phantom power is engaged.
2. MIDI Out – Flashes whenever MIDI data is sent out of
the IO|2.
3. MIDI In – Flashes whenever MIDI data is received from
an external MIDI controller.
4. USB – Lights up when a USB connection has been
established with your computer.
5. Stereo 4-segment input meters – Allow you to monitor
incoming levels. See the sidebar on the right for tips on how
to set levels.
Setting Gain Levels
The 4-segment input meters
are there to help you know
how loud your inputs are.
When you are adjusting the
gain knobs for each channel,
try to set your levels as loud
as possible without reaching
“0 dB.” If your input
reaches 0 dB, you are
overloading or “clipping”
the IO|2 and this results in
severe distortion.
Ideally, your levels should
peak between -6 and -3 dB on
the meters.
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Hookup Diagrams
The following setup will work well for most guitarist/singers:
1. Guitars – Plug guitars into the Guitar/Line input and make sure the “Mic/Line
Guitar” switch is set to “Guitar” to ensure best recording quality.
2. Microphones – Plug microphones into the XLR input of the IO|2. Make sure
that the “Mic/Line Guitar” switch is set to “Mic/Line.” If you are using a
condenser microphone that requires phantom power (most condensers do), turn
on phantom power using the +48V switch.
3. Headphones – Plug your headphones into this jack. The IO|2’s headphone
output can be very loud, so turn the gain up slowly until you reach a level that is
comfortable for you. If you are experiencing distracting “latency delays” of your
guitar or voice, turn the Monitor Mix knob towards “direct” until you find a good
balance between the zero-latency mic inputs and the output of your computer.
4. Main Outputs – The IO|2 supports both balanced “TRS” and unbalanced
“TS” ¼” cables. If your speakers (or mixer) support balanced cables, use them as
they give you better performance and lower noise.
5. USB Cable – Plug in your USB cable directly into your computer and avoid
using a USB hub. Hubs can interfere with audio and MIDI timing signals and
cause problems for the IO|2.
6. Insert – The IO|2 allows you to easily insert an additional processor such as a
reverb or compressor in your recording path. Simply use a TRS to dual-TS “insert
cable” to connect the additional device to the IO|2’s insert jack.
Autres manuels pour IO|2
3
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