ARX Multi Q OWNER’S MANUAL

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INTERNATIONAL LIMITED WARRANTY

ARX Systems (ARX) warrants to the first purchaser of any ARX equipment that it is free from defects in materials and workmanship under normal use and service. ARX’s sole obligation under this warranty shall be to provide, without charge, parts and labour necessary to remedy defects, if any, which appear within twelve (12) months from date of purchase, and for a further twelve (12) months supply parts only.

This is our only warrantyThis is our only warranty

This is our only warranty. It does not cover finish or appearance items, burned

This is our only warrantyThis is our only warranty voice coils, or if the equipment has been, in ARX’s sole judgement:

•Subjected to misuse, abuse, negligence or accident;

•Repaired, worked on, or altered by persons not authorized by ARX;

•Connected, installed, adjusted or used for a purpose other than that for which it was designed. This includes running a speaker system with the ISC leads disconnected, or with a non-ARX crossover, or with the wrong processor.

This warranty gives you and us specific legal rights and you may also have other rights which may apply.

Warranty Service ProcedureWarranty Service Procedure

Warranty Service Procedure

Warranty Service ProcedureWarranty Service Procedure

Should it become necessary to have your equipment serviced under the terms of the warranty, please follow these steps:

1. Call your ARX distributor for a Return Authorization (RA) number;

2. Carefully repack the unit, in its original packaging where possible, including a note with a description of the problem, and a copy of the receipt showing date of purchase. Attach these to the actual unit itself. Don’t forget to write your name and address clearly, and include a phone number where you can be contacted during normal business hours. Make it easy for our service technicians to contact you if they have a question. Also, use plenty of packing material - better to be safe than sorry.

3. Send the unit freight prepaid to ARX Systems, at the address given you with your RA number. We will pay the return freight when the serviced unit is returned to you.

4. We strongly recommend you insure the package. We can’t fix it if it gets lost! Send it by UPS, Fedex, DHL or any similar service that can track the package. Parcel Post is not recommended

If Warranty Registration Card is missing, please write to ARX in the country of purchase, stating model and where purchased, or to ARX, PO Box 15, Moorabbin, Victoria 3189, Australia.

Or you can Email us at: [email protected]

Multi Q

Parametric Equalizer

OWNER’S MANUAL

ARXARX

ARX Systems Pty Ltd, PO Box 15,

ARXARX

Moorabbin, Victoria 3189, Australia

PhonePhone

Phone: (03) 9555 7859

PhonePhone

International FaxInternational Fax

International Fax: +61-3 -9555 6747

International FaxInternational Fax

On the WebOn the Web

On the Web: www.arx.com.au

On the WebOn the Web

EmailEmail

Email: [email protected]

EmailEmail

FaxFax

Fax: (03) 9555 6747

FaxFax

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IMPORTIMPORT

IMPORT

IMPORTIMPORT

This is a dual voltage unit. It is essential that you check that the voltage on the

fuseholder cover below the AC connector on the rear of the chassis is set correctly

THIS IS SET FOR

100 V AC TO 120 V

AC OPERATION

To change, pull fuseholder out and rotate 180o, then push in again. Do not insert power cable into unit until voltage has been correctly set. Do not plug power cable into AC power until voltage has been correctly set

WARNING SYMBOLS USED ON THIS EQUIPMENTWARNING SYMBOLS USED ON THIS EQUIPMENT

WARNING SYMBOLS USED ON THIS EQUIPMENT

WARNING SYMBOLS USED ON THIS EQUIPMENTWARNING SYMBOLS USED ON THIS EQUIPMENT

This symbol is intended to alert you to the presence of important operating instructions contained in this owner's manual

This symbol is intended to alert you to the presence of uninsulated dangerous voltage within the product's enclosure that may be of sufficient magnitude to constitute a risk of electric shock.

This symbol indicates that a Slow Blow fuse is used in this equipment. Replace with same type and value only

ANT ANT

- PLEASE READ THIS FIRST- PLEASE READ THIS FIRST

ANT

- PLEASE READ THIS FIRST

- PLEASE READ THIS FIRST- PLEASE READ THIS FIRST

ANT ANT

before connecting it to AC power.

THIS IS SET FOR

220 V AC TO 240 V

AC OPERATION

Complies with 89/336/EEC EMC Directive, amended by 92/31/EEC and 93/68/EEC; CE 73/ 23/EEC Low Voltage directive and meets the following standards: EN 55013 : 1990, Sections

3.2 and 3.5 EN 55020 : 1988, Sections 4.3, 5.4,

6.2, 7.0, 8.0. Complies with Australian Standard AS/N25 1053

Multi Q Specifications

Filter Type Full Parametric State Variable Maximum Cut/Boost ±18 dB, user variable Bandwidth 3 octaves to 1/20th octave, user variable Input

Impedance Balanced 20 Kohms

Unbalanced 10 Kohms Input Headroom + 21 dB CMRR >60 dB, 20 Hz - 20 KHz Output Impedance Balanced 300 ohms

Unbalanced 150 ohms Output Level (Max) + 21 dB Frequency Response 10 Hz to 20 KHz, ± 0 .5 dB Signal to Noise ratio

One Channel: -98 dB Unweighted

-101 dB ‘A’ weighted

Six Channels: -88 dB Unweighted

-93 dB ‘A’ weighted Distortion .004% THD @ 0 dB,1KHz Dynamic Range 119 dB (single Channel) Power Requirements 100-120 V AC, 220-240 V AC 50-60 Hz

8 Watts (8 VA) Weight 5 lbs/2.2Kg Dimensions 19"W x 1¾"H x 6"D

482 x 44 x 155mm Input Connector type Balanced Jack (TRS) Output Connector type Balanced Jack (TRS)

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Front Panel Controls

• EQ In/Out switch. A hardwire Bypass of the EQ circuitry.

• Frequency x10 switch.

• Frequency select control. When used in conjunction with the x10 switch, gives a range of centre frequencies from 40 Hz through to 16 KHz.

Rear Panel Controls

• Tip/Ring/Sleeve Balanced Jack Input connector for Channel 1. Tip + Hot, Ring Cold, Sleeve Ground

• Tip/Ring/Sleeve Balanced Jack Output connector for Channel 2. Tip + Hot, Ring Cold, Sleeve Ground

Application Notes

The ARX Multi Q 6 Channel parametric Equalizer is a powerful and flexible tool for all audio equalization requirements, equally at home in Studio work, Broadcast, fixed installations or touring sound systems. Careful attention to circuit layout and shielding has resulted in noise figures that make the Multi Q ideal for Digital applications.

Each channel of the Multi Q can be accessed individually, and has effective control over virtually the complete audio spectrum, from 40 Hz to 16KHz.

Its exclusive and unique internal patching system lets you access up to 6 channels of parametric EQ, either individually or in multiples.

What exactly does this mean? Here’s an example. If you insert a lead into the Input of Channel 1, the signal will automatically be routed

through Channels 2 to 5 and come out at the Channel 6 Output, giving you a single channel, 6 band equalizer.

• ‘Q’ (Bandwidth) control, variable from 3 octaves through to 1/20th octave.

• Cut and Boost control, variable +/- 18 dB.

• Clip LED, indicating the onset of circuit overload.

• Numbered marker panel, for labelling EQ assigns.

Note: Channels 1 to 6 connectors identical in function

• IEC 3 pin AC connector and integral fuseholder. Replace fuse with correct value only: 100 - 120 V AC 1 amp, 220-240 V AC 0.5 amp. Please also refer to voltage details on Page 2

If you pull the lead out of the Channel 6 Output and plug it into the Channel 3 Output, the signal will stop there, giving you a single channel 3 band EQ. You can plug another lead into Channel 4 Input and another into Channel 6 Output, giving you another single channel 3 band EQ.

In this way, the Multi Q can be whatever you like: a single 6 band EQ, two 3 band EQs, a 2 and a 4 band EQ, six one band EQs, any combination you need. All this at the same time and without the need for extra patch leads.

All this makes the Multi Q a unique creative tool, because unlike other parametric Equalizers you are not stuck with having to use 4 or 5 bands of EQ when you may only need one or two. The Multi Q frees up these extra bands for use by other applications needing EQ.

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Typical configurations

Multi Q applications are as varied as your imagination, but here are a few examples to get you started.

•Room tuning for live sound work, whether fixed installation or touring •Control room tuning • Broadcast studio tuning • Main mix sweetening, both Live and Studio •As a notch filter for 6 monitor sends, or as a multi band channel insert for really hot stage monitor levels •As extra EQ on up to 6 mixing console channels, when the existing channel EQ is not enough •Kick and Snare drum tweaking • Extra punch to Bass guitar • Vocal sweetening •To generate a House curve for fixed installations •Digital mastering - CD, DAT •Cassette mastering

Single channel, 6 band EQ

Dual channel, 3 band EQ

Three channel, 2 band EQ

Six channel, single band EQ

Introduction

Thank you for choosing this ARX Multi Q Parametric Equalizer. We hope you enjoy using it as much as we enjoyed creating it. As with all ARX equipment, it has undergone extensive factory calibration and ‘burn in’ before shipping. To ensure continued trouble free use, please familiarise yourself with the contents of this manual before using.

About the Multi Q

The sheer amount of signal processors necessary for today’s standards of audio production puts a great strain on the available space in equipment racks, whether in the studio, fixed installations or on the road.

Each rack unit has to earn its space. Recognizing this fact, ARX design engineers have developed the ‘Multi Q’, an

innovative new approach to parametric equalization. Six channels each cover the complete audio spectrum, and each has its own Balanced Input and Output.

Each channel also has controls for Frequency Select, with x 10 switch; Bandwidth, from 3 octaves through to 1/20th octave; Cut and Boost, up to + or -18 dB; and IN/ OUT hardwire bypass switch. A clip LED indicates overload through all circuitry, and each channel has a numbered marker panel for easy confirmation of EQ assigns.

The Multi Q’s exclusive and unique Internal patching system allows access to 6 channels of parametric EQ, either individually or in multiples.

Inserting a lead into Channel 1 Input, for example, will automatically route that signal through Channels 2, 3, 4, 5 and deliver it at the Output of Channel 6, forming a 6 band single channel parametric EQ. However if you insert a lead into the Output of Channel 3, that same signal will stop and exit there, giving you a 3 band parametric EQ. You can then start again at Channel 4 through 6.

In this way the Multi Q can be configured as a 6 band single channel EQ, or 6 single band EQs, or two 3 band EQs, or a 2 and a 4 band EQ, in fact any combination you need.

The Multi Q does all this without the need for handfuls of extra patch leads, making it a unique creative tool for House or Monitor EQ, Studio EQ, compressor or gate sidechain EQ, and the ideal desk EQ insert on up to 6 desk channels.

IMPORTANT NOTE

For lowest noise it is important that you insert the next Input jack into the channel immediately following the Output jack. So if you’re coming out of Channel 2, insert the next Input into Channel 3. Don’t leave any channels spare in between.