ALESIS GRIP Legacy Series Audio Processor Synthesizer User Manual

User Manual

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Table Of Contents

Introduction..........................................................3

Welcome!......................................................................................................3

About the GRIP...................................................................4

GRIP Key Features .................................................................................... 4

How to Use This Manual ...................................................5

Important Safety Instructions..........................7

Important Safety Instructions (English).......................7

Safety symbols used in this product......................................................... 7

Please follow these precautions when using this product:.................... 7

Instructions de Sécurité Importantes

(French) ................................................................................9

Symboles utilisés dans ce produit.............................................................9

Veuillez suivre ces précautions lors de l’utilisation de

l’appareil: ......................................................................................................9

Lesen Sie bitte die folgende

Sicherheitshinweise (German)........................................11

Sicherheit Symbole verwendet in diesem Produkt.................................11

Folgen Sie bitte diesen Vorkehrungen, wenn dieses

Produkt verwendet wird: ...........................................................................11

CE Declaration Of Conformity ........................................13

FCC Compliance Statement ............................................. 13

Getting Started.....................................................15

Hooking Up the GRIP........................................................15

Applications.........................................................................15

DJ Setup.......................................................................................................16

Recording.....................................................................................................16

Live Performance (Club/Concert) ........................................................... 16

Important Notes on Using the GRIP .............................. 16

Rack-Mounting the GRIP ......................................................................... 16

Connecting Instruments Safely................................................................. 16

Maintaining Proper Levels.........................................................................16

Stabilizing Your Turntable and CD Player.............................................. 17

A Tour of the Grip................................................19

Front Panel ..........................................................................19

POWER Button.......................................................................................... 19

INPUT Knob..............................................................................................19

Crossover (XOVER) Knob.......................................................................19

XOVER OUT Button................................................................................ 20

SUB BASS LEVEL knob.......................................................................... 20

BASS DRIVE Knob .................................................................................. 20

GAIN REDUCTION LED Meter..........................................................21

BASS LEVEL Knob..................................................................................21

BASS LEVEL LED Meter........................................................................ 21

INPUT LEVEL LED Meter ....................................................................19

CLIP LED Indicator..................................................................................19

Table Of Contents

LO CUT Knob ...........................................................................................21

OUTPUT Knob .........................................................................................21

BYPASS Button .......................................................................................... 21

Rear Panel............................................................................ 22

INPUT Jacks ............................................................................................... 22

OUTPUT Jacks........................................................................................... 22

XOVER OUTPUT Jack............................................................................22

IEC POWER Jack ......................................................................................22

Suggested Settings ..............................................23

Troubleshooting...................................................25

Troubleshooting Index...............................................................................25

Specifications .......................................................27

Audio Input ................................................................................................. 27

Audio Output.............................................................................................. 27

Audio Performance ....................................................................................27

Mechanical ................................................................................................... 27

Index .......................................................................31

Warranty/Contact Alesis ....................................33

Alesis Limited Warranty............................................................................. 33

Alesis Contact Information.......................................................................34

1 Introduction

Welcome!

Thank you for making the Alesis GRIP a part of your setup. Since 1984, we've been designing and building creative tools for the audio community. We believe in our products, because we've heard the results that creative people like you have achieved with them. One of Alesis' goals is to make high-quality studio equipment available to everyone, and this User Manual is an important part of that. After all, there's no point in making equipment with all kinds of capabilities if no one explains how to use them. So, we try to write our manuals as carefully as we build our products.

The goal of this manual is to get you the information you need as quickly as possible, with a minimum of hassle. We hope we've achieved that. If not, please drop us an email and give us your suggestions on how we could improve future editions of this manual.

We hope your investment will bring you many years of creative enjoyment and help you achieve your musical goals.

Sincerely, The people of Alesis

or more effective

ervice and product

update notices, please

egister your GRIP

online at:

ttp://www.alesis.com

upport/warranty.htm

Introduction

About the GRIP

The GRIP offers you advanced methods for processing and generating low frequencies for live or recorded music. It does this via two different methods of signal processing. First, it gives you several different means of adjusting the character and level of the low frequencies of the input signal. Second, it includes a proprietary sub-harmonic synthesizer that creates sub-bass signals harmonically related to—but not present in—the original signal. In short, it improves the bass that is there, and creates sub-bass where none exists.

We created the GRIP so that it adjusts only the low frequencies of an input signal so that you can improve the bass without sacrificing the quality of the middle or upper ranges. Furthermore, you have precise control over which low frequencies are processed by the GRIP. This can add a high-fidelity sound to any musical scenario: a DJ setup, a club PA system, sound reinforcement at a concert and even studio or home recording projects involving any sort of instrument.

GRIP Key Features

1. Digital signal processing with stereo input and stereo output

2. Simple front-panel interface that gives you quick and easy access to all functions

3. LO CUT control that protects speakers from damage caused by ultra-low frequencies

4. Proprietary digital sub-harmonic synthesis algorithm adds bass not present in the original signal

5. A crossover output that allows you to route the lowest frequencies to a subwoofer

6. LED meters that provide constant visual indication of input level, gain reduction and bass level

Getting Started

How to Use This Manual

This manual is divided into the following sections describing the various functions and applications for the GRIP. While it's a good idea to read through the entire manual once carefully, those having general knowledge about studio equipment should use the table of contents to look up specific functions.

Chapter 3: Getting Started. If you're already experienced with signal processing, this will get you started using the GRIP right away. It's a short guide to the essential elements of hooking it up and using it for the first time. We’ve included a hookup diagram plus some applications for which the GRIP is most appropriate. The chapter ends with some important notes on operating the unit.

Chapter 4: A Tour of the GRIP features diagrams of the front and rear panels, along with descriptions of each of the controls and features found there.

Chapter 5: Suggested Settings provides some suggested frontpanel settings for several usage scenarios.

Chapter 6: Troubleshooting can give you a hand if you’re experiencing problems with the GRIP. You’ll find that most issues can be resolved simply and quickly.

Near the end of the manual are specifications, and an index to help you find what you're looking for.

elpful tips and advice are

highlighted in a shaded box

When something important appears in the manual, an exclamation mark (like the one shown at left) will appear with some explanatory text. This symbol indicates that this information is vital when operating the GRIP.

Introduction

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2 Important Safety

Instructions

Important Safety Instructions (English)

Safety symbols used in this product

This symbol alerts the user that there are important operating and maintenance instructions in the literature accompanying this unit.

This symbol warns the user of un-insulated voltage

within the unit that can cause dangerous electric shocks.

This symbol warns the user that output connectors contain voltages that can cause dangerous electrical shock.

Please follow these precautions when using this product:

1. Read these instructions.

2. Keep these instructions.

3. Heed all warnings.

4. Follow all instructions.

5. Do not use this apparatus near water.

6. Clean only with a damp cloth. Do not spray any liquid

cleaner onto the faceplate, as this may damage the front panel controls or cause a dangerous condition.

7. Install in accordance with the manufacturer's

instructions.

8. Do not install near any heat sources such as radiators,

heat registers, stoves, or other apparatus (including amplifiers) that produce heat.

9. Do not defeat the safety purpose of the polarized or

grounding-type plug. A polarized plug has two blades with one wider than the other. A grounding-type plug has two blades and a third grounding prong. The wide blade or the third prong is provided for your safety.

Important Safety Instructions

When the provided plug does not fit into your outlet, consult an electrician for replacement of the obsolete outlet.

10. Protect the power cord from being walked on or

pinched, particularly at plugs, convenience receptacles, and the point where they exit from the apparatus.

11. Use only attachments or accessories specified by the

manufacturer.

12. Use only with a cart, stand, bracket, or table designed

for use with professional audio or music equipment. In any installation, make sure that injury or damage will not result from cables pulling on the apparatus and its mounting. If a cart is used, use caution when moving the cart/apparatus combination to avoid injury from tipover.

13. Unplug this apparatus during lightning storms or when

unused for long periods of time.

14. Refer all servicing to qualified service personnel.

Servicing is required when the apparatus has been damaged in any way, such as when the power-supply cord or plug is damaged, liquid has been spilled or objects have fallen into the apparatus, the apparatus has been exposed to rain or moisture, does not operate normally, or has been dropped.

15. This unit produces heat when operated normally.

Operate in a well-ventilated area with at least six inches of clearance from peripheral equipment.

16. This product, in combination with an amplifier and

headphones or speakers, may be capable of producing sound levels that could cause permanent hearing loss. Do not operate for a long period of time at a high volume level or at a level that is uncomfortable. If you experience any hearing loss or ringing in the ears, you should consult an audiologist.

17. Do not expose the apparatus to dripping or splashing.

Do not place objects filled with liquids (flower vases, soft drink cans, coffee cups) on the apparatus.

18. WARNING: To reduce the risk of fire or electric

shock, do not expose this apparatus to rain or moisture.

Important Safety Instructions

Instructions de Sécurité Importantes (French)

Symboles utilisés dans ce produit

Ce symbole alèrte l’utilisateur qu’il existe des instructions de fonctionnement et de maintenance dans la documentation jointe avec ce produit.

Ce symbole avertit l’utilisateur de la présence d’une tension non isolée à l’intérieur de l’appareil pouvant engendrer des chocs électriques.

Ce symbole prévient l'utilisateur de la présence de tensions sur les raccordements de sorties, représentant un risque d'électrocution.

Veuillez suivre ces précautions lors de l’utilisation de l’appareil:

1. Lisez ces instructions.

2. Gardez ces instructions.

3. Tenez compte de tous les avertissements.

4. Suivez toutes les instructions.

5. N’utilisez pas cet allareil à proximité de l’eau.

6. Ne nettoyez qu’avec un chiffon humide. Il est

potentiellement dangereux d'utiliser des pulvérisateurs ou nettoyants liquides sur cet appareil.

7. Installez selon les recommandations du constructeur.

8. Ne pas installer à proximilé de sources de chaleur

comme radiateurs, cuisinière ou autre appareils (don’t les amplificateurs) produisant de la chaleur.

9. Ne pas enlever la prise de terre du cordon secteur. Une

prise murale avec terre deux broches et une troisièrme reliée à la terre. Cette dernière est présente pour votre

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