Alesis 7-51-0173-E User Manual

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24-bitUSB Audio/MIDI Interface

Quick Start Owner’s Manual

BOX CONTENTS

IO|2 USB AUDIO/MIDI INTERFACE

USB CABLE

QUICK START OWNER’S MANUAL

IMPORTANT SAFETY INSTRUCTIONS

Manual de inicio rápido para el usuario

CONTENIDO DE LA CAJA

INTERFAZ DE AUDIO/MIDI USB IO|2

CABLE USB

MANUAL DE INICIO RÁPIDO DEL USUARIO

INSTRUCCIONES IMPORTANTES DE SEGURIDAD

Manuel d’utilisation du propriétaire

CONTENUE DE LA BOÎTE

IO|2 AVEC INTERFACE USB AUDIO/MIDI

CÂBLE USB

GUIDE D’UTILISATION SIMPLIFIÉ

CONSIGNES DE SÉCURITÉ

Kurzbedienungsanleitung

INHALT DER VERPACKUNG

IO|2 USB AUDIO/MIDI INTERFACE

USB KABEL

KURZBEDIENUNGSANLEITUNG

WICHTIGE SICHERHEITSHINWEISE

Manuale rapido di utilizzo

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)

1

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-bitrecording and playback

Balanced XLR and ¼” inputs with adjustable gain

Switchable phantom power

TRS inserts

High quality mic preamps

Comprehensive 4-segmentinput metering

Low latency ASIO/WDM/Core Audio drivers

Zero-Latencymonitoring

MIDI and S/PDIF inputs and outputs

Headphone out with separate volume knob

Bus powered for operation without power supply

Ultra-ruggedand 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-MHzProcessor 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-dateon 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 orline-levelinstrument 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.

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.

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 allline-levelsources (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 forzero-latencymonitoring 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 ofzero-latencysignal 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 theLo-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.

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Back Panel Connections

1.MIDI Out Connector - Use afive-pinMIDI cable to connect the MIDI out of the IO|2 to the MIDI input of an external MIDI device.

2.MIDI In Connector - Use afive-pinMIDI 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 a110-ohmcoaxial 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 a110-ohmcoaxial 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-segmentinput 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-segmentinput 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 -6and-3dB 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 thezero-latencymic 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 todual-TS“insert cable” to connect the additional device to the IO|2’s insert jack.

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