Gecko Exodus odyssey mxr3604l User manual

GECKO® EXODUS ODYSSEY MXR 3604L / MXR 5204L

www.geckomusic.net

OWNER'S MANUAL

GECKO® SAFETY INSTRUCTIONS & SYMBOLS GUIDE

For your own safety and to avoid invalidation of the warranty, all text marked with these symbols should be

read carefully.

SYMBOLS:

SAFETY INSTRUCTIONS:

•To reduce the risk of electrical shock, do not remove covers. No user serviceable parts inside. Please

refer servicing to qualified personnel.

•To reduce the risk of electrical shock or fire, do not expose the equipment to rain or moisture.

•Do not impose unnecessary stress on your equipment (i.e. placing heavy objects on it, overscrewing its

mounting etc).

•Read and keep the instruction manuals in a safe place for future references.

•Do not attempt to clean the equipment with chemical solvents as this may damage the finish. Clean only

with dry cloth.

•Do not block any ventilation openings.

•Do not install near any heat sources such as radiators, heat registers, stoves, or other apparatus that

produce heat.

•Do not defeat the 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 grounding prong is provided for your safety. If the provided plug does not fit into your outlet,

consult an electrician for the replacement of the obsolete outlet.

•Protect the power cord from being walked on or pinched particularly at plugs, convenience receptacles,

and the point where they exit from the apparatus.

•Unplug the apparatus during lightning storms or when it is not in use for a long period of time.

NOTES

Contain important information and useful tips on the operation of your equipment.

WARNING

The lightning flash with arrowhead symbol within an equilateral triangle, is intended to

alert the user 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.

CAUTIONS

The exclamation point within an equilateral triangle is intended to alert the user to the

presence of important operating and maintenance (servicing) instructions in thee

literature accompanying the appliance. Please read the manual carefully.

HEADPHONES

EADPHONES

SAFETY

WARNIN

WARNING

Contain important information and use

useful tips on headphones outputs and monitoring

levels.

•Use only attachments / accessories specified by the manufacturer.

•Always shut down power supply when not in use to save energy and for prolonged lifespan.

•Exposure to extremely high noise levels may cause permanent hearing loss. Individuals vary

considerably in susceptibility to noise-induced hearing loss, but nearly everyone will lose some hearing if

exposed to sufficiently intense noise for a period of time. The U.S. Government’s Occupational Safety

and Health Administration (OSHA) has specified the permissible noise level exposures shown in the

following chart. According to OSHA, any exposure in excess of these permissible limits could result in

some hearing loss. To ensure against potentially dangerous exposure to high sound pressure levels, it is

recommended that all persons exposed to equipment capable of producing high sound pressure levels

use hearing protectors while the equipment is in operation. Ear plugs or protectors in the ear canals or

over the ears must be worn when operating the equipment in order to prevent permanent hearing loss if

exposure is in excess of the limits set forth here:

Duration/Day (Hours) dB, Sound Pressure Level (SPL) Descriptions

Below 90 dB Safe zone

8.00 90 Hearing damage

6.00 92

4.00 95

3.00 97

2.00 100 Serious hearing damage

1.50 102

1.00 105

0.50 110

0.25 or less 115 Human pain threshold

GECKO MUSIC GROUP

No. 59, 59-1, 61, 61-1, 63, 63-1, Jalan PE 3, Taman Paya Emas,

Paya Rumput, 76450 Melaka, Malaysia.

Mobile: +6012.204 2175

Email: [email protected] • Website: www.geckomusic.net

FOREWORD

Dear Friends,

Thank you very much for purchasing quality products by GECKO MUSIC GROUP. I am indeed very

delighted that we have journeyed this far, setting new standards in the audio and music industry while

touching and changing lives along the way!

At GECKO MUSIC GROUP we focus on developing nothing but the best professional audio equipment and

premium grade musical instruments you ever need! It has been our philosophy all this while that good sound

reproductions can be achieved at a fraction of a premium. Our engineering team is constantly doing research

and development to meet this objective. We thank God that by HIS grace, we have succeeded in developing

the revolutionary C.R.I.S.T.A.L.® Audiophile technology that is changing the way how sound is being

encoded, reproduced and managed!

On behalf of GECKO MUSIC GROUP, I would like to pledge our continuing commitment to uphold our

traditions in serving music and audio communities around the world with more value-added highest possible

quality GECKO® professional audio equipment and premium grade musical instruments!

Once again, thank you very much for your support.

Yours truly,

Daniel Foo

Founder / Chairman

GECKO MUSIC GROUP

TABLE OF CONTENTS

INTRODUCTION 1

PACKAGE CONTENTS 2

PANEL LAYOUTS 3

INSTALLING THE CONSOLEE LAYOUT 6

CONNECTING POWER 7

CONNECTIONS 9

THE CONSOLE CONNECTORS 12

MONAURAL INPUT CHANNEL 16

STEREO INPUT CHANNEL 19

GROUP / AUX MASTERS 21

L-R-M MASTERS 22

7x4 MATRIX 23

MONITOR, TALKBACK, SIGNAL GENERATOR 25

BLOCK DIAGRAM 27

SPECIFICATIONS 28

WARRANTY 30

NOTES: This manual covers the large-format 36-channel GECKO® EXODUS

ODYSSEY MXR 3604L C.R.I.S.T.A.L.® Audiophile mixing console and the 52-

channel GECKO® EXODUS ODYSSEY MXR 5204L C.R.I.S.T.A.L.® Audiophile

mixing console. As both consoles are operationally identical, this manual will discuss

the GECKO® EXODUS ODYSSEY MXR 5204L.

______________________________________________________________________________________

INTRODUCTION

World's first audiophile grade consoles. The GECKO® EXODUS ODYSSEY MXR 3604L and MXR 5204L

C.R.I.S.T.A.L.® Audiophile mixing consoles are designed for professional engineers and audiophiles seeking

those “long lost” pure, smooth, warm tones for their music recording, mixing, mastering, and live sound

applications in this world very much filled with digital colorations and noises.

Everything about the EXODUS ODYSSEY has been designed to give you optimum audio fidelity, from the

superb sounding C.R.I.S.T.A.L.® Audiophile PreAmps to the linearly noiseless VCA faders.

Equipped with a comprehensive range of features such as assignable talkback functions, matrices, individual

channel direct out, etc... you can be sure that the EXODUS ODYSSEY desk is not only a fantastic piece of

engineering, it also makes complex mixes easy!

C.R.I.S.T.A.L.® Audiophile mixing consoles are the ultimate analogue mixing consoles for the modern audio

world.

Features at a glance:

•36 channels frame (MXR 3604L) / 52 channels frame (MXR 5204L)

•C.R.I.S.T.A.L.® Audiophile PreAmps for smooth gain structure and headroom

•C.R.I.S.T.A.L.® Audiophile circuitry for uncolored, lossless stereo summing

•MAIN LR (stereo) mix

•Multi-mode M output

•7 x 4 MATRIX

•6 AUX sends

•4 GROUP sends

•100mm dust-protected VCA faders for linearly noiseless operations

•Channel DIRECT OUT for multitrack recordings

•PRE/POST EQ and PRE/POST fader switching for AUX and DIRECT OUT

•Assignable TALKBACK

•1kHz OSCILLATOR / PINK Noise generator

•Per channel +48V PHANTOM, POLARITY, HPF, LINE/PAD

•Audiophile-precision channel EQ with BYPASS function

•Solid copper ground buss

•Dual-functionality console for front-of-house and monitoring

•HEADPHONES and MONITOR outputs

•Stabilized power supplies: Built-in Universal Power Supply (MXR 3604L) / JORDAN PS 2410U

(MXR 5204L)

•and many other wonderful features.

______________________________________________________________________________________

PACKAGE CONTENTS

EXODUS ODYSSEY MXR 3604L:

•GECKO® EXODUS ODYSSEY MXR 3604L 36-channel C.R.I.S.T.A.L.® Audiophile mixing console

•IEC Power Cord. EXODUS ODYSSEY MXR 3604L comes with built-in universal power supply.

EXODUS ODYSSEY MXR 5204L:

•GECKO® EXODUS ODYSSEY MXR 5204L 52-channel C.R.I.S.T.A.L.® Audiophile mixing console

•IEC Power Cord

•GECKO® JORDAN PS 2410U universal power supply with 10-pin DC power cable

______________________________________________________________________________________

PANEL LAYOUTS

FRONT

______________________________________________________________________________________

REAR

______________________________________________________________________________________

INSTALLING THE CONSOLE

The EXODUS ODYSSEY mixing console has a space saving, compact chassis design. This is convenient,

both in saving seats for the paying audience in a busy venue, and in reducing the size, complexity and

weight of flight casing for on-the-road use. The control surface has a 10 degree slope for optimum visibility

during operations.

Free Standing

The console has rubber feet fitted for free standing operation on a flat surface. Make sure the surface is well

supported, stable and big enough for the console to sit securely on all its feet. Allow enough space behind

the console for access to its connectors.

Flight Casing

The console is shaped for easy flight casing. Make sure it is supported on all sides using suitably thick,

shock absorbent foam intended for this purpose. Ensure no part of the case or its lid touches the controls or

connectors. If you include a rear “doghouse” to house the connections, make sure the cables can be

supported in a way that prevents putting stress on the console connectors. To prevent transit damage

through inadequate protection, we recommend you have the flight case supplied or approved by a

professional, and or a specialist equipment case manufacturer.

CAUTIONS: Do not obstruct the ventilation openings on the top and rear surfaces.

Ensure adequate air flow around these surfaces. To avoid audible hum, buzz or

other performance degradation, do not place equipment that radiates strong

electromagnetic fields such as mains power supplies, amplifiers, and computers next

to or directly underneath the console.

______________________________________________________________________________________

CONNECTING POWER

EXODUS ODYSSEY MXR 5204L 10-PIN DC INPUTS

JORDAN PS 2410U UNIVERSAL POWER SUPPLY

Read and understand the Safety Instructions printed at the start of this manual, and the warnings printed

on the rear of the console. Check that your local mains supply voltage is the same as that selected on the

rear of the JORDAN PS 2410U universal power supply unit. Connect the supplied 10-pin DC power cable to

the MAIN POWER DC INPUT on the console and to DC OUT at the rear of the JORDAN PS 2410U. Check

that the correct mains lead with moulded plug has been supplied. Make sure the IEC mains plug is pressed

fully into the panel socket of the JORDAN PS 2410U before switching on.

GROUNDING

The connection to ground in an audio system is important for two reasons:

1. SAFETY – To protect the operator from high voltage electric shock, and

2. AUDIO PERFORMANCE – To minimize the effect of ground (earth) loops which results in audible

hum and buzz, and to shield the audio signals from interference.

______________________________________________________________________________________

CONNECTING THE POWER SUPPLY

Connect the supplied 10-pin DC power cable to the MAIN POWER DC INPUT on the console and to DC

OUT at the rear of the JORDAN PS 2410U.

SWITCHING THE CONSOLE ON AND OFF

It is a good practice to turn power amplifiers off before switching the console and other connected equipment

on or off. This prevents any unexpected clicks or thumps when the equipment is powered up.

CAUTIONS: Turn power amplifiers and powered speakers on last and off first.

Turn the EXODUS ODYSSEY MXR 5204L console on and off using the ON/OFF power switch on the front

of the JORDAN PS 2410U (there is no separate ON/OFF switch on the MXR 5204L console itself). The red

neon indicator on the front panel of the JORDAN PS 2410U will illuminate to show the JORDAN PS 2410U

universal power supply is powered up. The green POWER ON LED indicator on console front panel will

illuminate to show the console is switched on.

To turn the MXR 3604L on, press the ON/OFF button found at the rear panel of the console. The green

MAIN LED / ACTIVE POWER SUPPLY next to the ON/OFF button will illuminate to show main power supply

is in operation. The green POWER ON LED indicator on console front panel will illuminate to show the

console is switched on.

CONNECTING A BACKUP SUPPLY

A second power socket, labelled “BACKUP POWER DC INPUT” is included for plugging in an optional power

supply. This provides the reassurance of power supply dual redundancy, a feature usually found only on

expensive top end consoles. The console uses Diode Combining technology so that both supplies can be

powered at the same time. One will automatically take over should the other be switched off or stopped

working. The recommended backup supply for the EXODUS ODYSSEY MXR 5204L is a second JORDAN

PS 2410U and JORDAN PS 2310U for EXODUS ODYSSEY MXR 3604L.

CAUTIONS: Use only the recommended power supply unit. Do not attempt to

modify any other power unit to work with the console. Do not attempt to modify or

extend the DC power cable that comes with the supply.

______________________________________________________________________________________

For safety it is important that all equipment grounds are connected to mains grounds

so that exposed metal parts are prevented from carrying high voltage which can

injure or even kill the operator. Do not disconnect the ground on the mains lead. It is

recommended that the system engineer check the continuity of the safety ground

from all the points in the system including microphone bodies, turntable chassis,

equipment cases, rack metalwork and so on.

The green BACKUP LED / ACTIVE POWER SUPPLY next to the ON/OFF button on the EXODUS

ODYSSEY MXR 3604L will illuminate to show backup power supply is active.

CONNECTIONS

______________________________________________________________________________________

Notes: All the TRS and

TS connectors illustrated

here are of ¼” (6.3mm)

diameter.

This mixer uses professional grade 3-pin XLR (male and female) and ¼” TRS (3-pole) sockets. To ensure

best performance, we recommend that you use high quality TRUTH T3AL audiophile signal cables and

OLYMPIAN series audiophile connectors for your connections. Take time to check for reliable and accurate

cable assembly. It is well known that most audio system problems (and sound quality degradations) are due

to faulty or sub standard interconnecting leads and connectors.

______________________________________________________________________________________

Notes: All the TRS and TS connectors illustrated here are of ¼” (6.3mm) diameter.

DEALING WITH GROUND LOOPS, BUZZ, AND INTERFERENCE

For optimum performance, all audio signals should be referenced to a solid, noise-free ground (earth) point,

also known as “star point” or “clean earth”.

A ground loop is created when potential differences exist between grounds at different points in the system,

and the signal has more than one path to ground. In most cases, ground loops do not result in audible

problems. Should you experience hum or buzz caused by a ground loop, check first that each piece of

equipment has its own separate path to ground. If so, operate ground lift switches on connected equipment

(i.e. DI boxes) in accordance to their respective instruction manuals.

Alternatively, disconnect the cable screen at the destination end only. This breaks the offending loop while

keeping the signal shielding down the length of cable.

WARNING: For operator safety, do not remove the ground (earth) connection in the

power lead of the console or connected equipment.

To avoid interference pickup, keep audio cables away from mains power units and cables, lighting cables,

thyristor dimmer units, computer equipment, and mobile phones. Where this cannot be avoided, cross the

cables at right angle (90 degrees) to minimize interference.

A NOTE ON BALANCED CONNECTIONS

A differentially balanced connection has two signal wires, signal + (hot) and signal - (cold), and a shield. The

signal source generates positive going polarity down the + wire and negative polarity down the - wire. The

destination input stage accepts the + signal on its non-inverting (+) input pin, but it inverts the - signal, adding

it to the + signal. The result is that the wanted signal is boosted. Now examine what happens when

unwanted interference (hums and noise) is induced into the cable. The noise is induced equally and with the

same polarity into both wires. At the destination input, the - wire signal gets inverted and added to the +

signal. Because the polarity is the same on both input wires, the noise cancels itself out at this point

(destination). For this interference rejection to work, it is important that the source, the cable, and the

destination input are all balanced. Balancing provides greatest advantage with low level signals such as

those produced by microphones.

An impedance balanced output provides similar interference rejection, but not as much maximum drive

capability as the differentially balanced output, typically +20dBu versus +26dBu. It does not generate a

negative polarity signal at its - output. Instead the - wire has no signal but is held at the same impedance at

the + wire. This means that both wires pick up the noise equally, resulting in the advantage of noise

cancellation as described above when connected to a balanced input stage.

______________________________________________________________________________________

THE CONSOLE CONNECTORS

1. MONAURAL (MONO) CHANNEL MIC IN / LINE IN

The LINE/PAD switch selects either the MIC IN XLR or LINE IN ¼” TRS as the

input source. The XLR is normalled through the ¼” TRS jack so that it can be

used for microphone or line level signals when nothing is plugged into the jack

socket. The channel is fitted with C.R.I.S.T.A.L.® Audiophile PreAmps for purest

of sound amplification, with massive headroom of +34dBu maximum input

capability using XLR or TRS jack. Both inputs are balanced and can be wired to

work with unbalanced signals when required. The MIC IN XLR can be switched

to provide +48V DC PHANTOM for condenser microphones and other

equipment requiring phantom powering.

CAUTIONS: Do not connect unbalanced sources or

cables to the XLR input when +48V PHANTOM power is

selected. To avoid loud thumps, always turn the channel

off by pressing MUTE when switching +48V PHANTOM

on or off, and when plugging or unplugging cables.

2. DIRECT OUT

Each mono channel DIRECT OUT is available on an impedance balanced ¼”

TRS jack, providing a line level signal operating at 0dBu (output of

C.R.I.S.T.A.L.® Audiophile PreAmps). A great feature for recording individual

tracks into a multi-track recording system. The source is pre-fade by default.

You can opt for post-fade by pressing the DIR POST FADER button on the

channel strip. You can choose to have your DIRECT OUT source to be pre-EQ

or post-EQ by using the AUX/DIR POST EQ function button on the channel strip

too (pressing in the AUX/DIR POST EQ button will post-EQ your DIRECT OUT

and AUX source on that channel).

3. INSERT

A single 3-pole TRS jack carries the unbalanced insert signal for each mono

channel and main mix (MAIN L/R) output. The channel inserts are post-HPF ,

pre-EQ, and operate at 0dBu. The group (INS GRP 1-4) and LR mix (INS LEFT,

INS RIGHT) inserts are pre-fader and operate at -2dBu. Use these to patch in

line level signal processing equipment such as compressors, outboard EQ,

delay units and so on. The wiring of a suitable cable is shown on the diagram

below.

______________________________________________________________________________________

4. STEREO CHANNEL MIC IN

Each stereo channel features a mono microphone XLR input (MIC IN) and two

independent stereo line inputs (LEFT/MONO RIGHT). The balanced MIC IN

input accepts a maximum of +14dBu and can be switched to provide +48V DC

phantom power.

5. STEREO CHANNEL MIC OUT

The output of the microphone preamp (C.R.I.S.T.A.L.® Audiophile PreAmps) is

available on the MIC OUT (¼” TRS) jack socket. This is impedance balanced

and operate at a nominal 0dBu line level. Plugging into this socket breaks the

signal into the associated stereo channel. This means that the microphone

preamp can be used independently of the channel, for example, to create

ambience microphone feed for recording, or as a preamp for RTA measurement

system.

6. STEREO CHANNEL LINE IN

The LEFT/MONO input is normalled through the RIGHT socket to accept mono

signals on a single jack.

7. LAMP

The 36-channel EXODUS ODYSSEY MXR 3604L has five, while the 52-

channel EXODUS ODYSSEY MXR 5204L has seven 4-pin XLR sockets to plug

in standard 10V/2W gooseneck lamps to illuminate the operating surface when

working in dark environment. Only use lamps intended for this purpose.

8. GROUP, MAIN L/R, M OUTPUTS

The main console mix outputs are on electronically balanced XLR. These produce professional standard

+4dBu when meters read “0”, and provides up to a maximum +32dBu. The MAIN LEFT and RIGHT outputs

typically feed the house system in live mixing, or a 2-track recorder for stereo summing in studio mixing and

mastering. The L and R summed mono source is fed at the M output for various audio applications.

9. AUX (1-6) OUTPUTS

Each aux send is available on an impedance balanced ¼” TRS jack operating at +4dBu line level. The aux

sends are typically used to feed monitors, effects devices (i.e. reverb and delay), and for special mix

requirements.

______________________________________________________________________________________

10. MATRIX (1-4) OUTPUTS

Each matrix output is available on an impedance balanced

¼” TRS jack operating at +4dBu line level. The matrix

outputs, MTX (1-4) OUT, are typically used for stereo or

mono recording or broadcast feeds, delay and fill speakers,

zone feeds, additional monitors such as in-ear monitors

(IEM), hearing assist loop and so on.

11. MATRIX EXTERNAL IN (1-4)

______________________________________________________________________________________

12. 2-TRACK INPUT / OUTPUT

Unbalanced ¼” TRS jack outputs and inputs connect to

popular recording and playback devices such as CD

player/recorder and or computer audio interface. Nominal

line level is -2dBu. The 2-TRACK OUTPUT always follow

the post-fader MAIN L/R mix regardless of mode switch

configuration. The 2-TRACK INPUT can be used for

monitoring a mono or stereo recording, or as a simple input

for playback of walk-in and background music. The

LEFT/MONO input normals through the RIGHT socket for

plugging in a mono source on a single jack.

13. MONITOR OUTPUT

These impedance balanced line level ¼” TRS jack outputs

follow the post-fader MAIN L/R level monitor signal.

Separate sockets are provided for the LEFT and RIGHT

signals. Use these to feed local reference monitor speaker

systems.

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