Nexo Geo M6 Series Guide de l'utilisateur

System Manual GEOM6

DP2537-06-CM

GEO M6

GEO M620 & GEOM6B

Tangent Array Modules

System manual

CONTENTS

Page 2/ 64 System Manual GEOM6

CONTENTS

PLEASE READ CAREFULLY BEFORE PROCEEDING...................................................................................................5

1INTRODUCTION ..........................................................................................................................................................7

2GEO M6 GENERAL SET-UP INSTRUCTIONS........................................................................................................8

2.1 GEO M620 AND GEO M6B CONNECTIONS............................................................................................................................ 8

GEO M620 connectors...........................................................................................................................................................................8

GEO M6B connectors .............................................................................................................................................................................8

2.2 CABLING ........................................................................................................................................................................................ 9

2.3 GEO M620 AND GEO M6B RECOMMENDED AMPLIFICATION............................................................................................ 9

2.4 GEO M6 SETUPS ON NEXO TD CONTROLLERS..................................................................................................................... 9

3CONNECTION DIAGRAMS...................................................................................................................................... 10

3.1 GEO M620 &LS18 /DTDCONTROLLER &DTDAMP4X1.3.........................................................................................10

3.2 GEO M620 /NXAMP4X1MK2(4 CHANNELS MODE) ......................................................................................................11

3.3 GEO M620 &GEO M6B /NXAMP4X1MK2(4 CHANNELS MODE)..............................................................................12

3.4 GEO M620 &LS18 (MONO BRIDGED)/NXAMP4X1MK2.............................................................................................13

3.5 GEO M620 /NXAMP4X2MK2(4 CHANNELS MODE) ......................................................................................................14

3.6 GEO M620 &GEO M6B /NXAMP4X2MK2(4 CHANNELS MODE)..............................................................................15

3.7 GEO M620 &LS18 /NXAMP4X2MK2(4 CHANNELS MODE).......................................................................................16

4NS-1 SIMULATION SOFTWARE ........................................................................................................................... 17

5CONFIGURABLE DIRECTIVITY DEVICE ............................................................................................................ 18

5.1 INSTALLING &REMOVING GEO’S CONFIGURABLE DIRECTIVITY FLANGES......................................................................18

5.2 WHEN &WHERE TO USE CONFIGURABLE DIRECTIVITY FLANGES.....................................................................................18

6GEO M6 HARDWARE SETUP PROCEDURE ...................................................................................................... 19

6.1 SAFETY FIRST..............................................................................................................................................................................19

Flown systems safety .......................................................................................................................................................................... 19

Ground stacking safety...................................................................................................................................................................... 20

Contacts .................................................................................................................................................................................................... 20

6.2 GENERAL DESCRIPTION............................................................................................................................................................21

GEO M6 “Left” and “Right” configuration................................................................................................................................. 21

GEO M6 modules rigging system................................................................................................................................................... 21

Permanent installation variant..................................................................................................................................................... 22

Accessories............................................................................................................................................................................................... 23

Warnings on GEO M6 accessories................................................................................................................................................. 24

6.3 INSTALLATION APPLICATIONS .................................................................................................................................................25

Described configurations.................................................................................................................................................................. 25

1 to 3 (maximum) GEO M6 wall mounted ................................................................................................................................ 26

1 to 3 (maximum) GEO M6 ceiling mounted ........................................................................................................................... 27

4 to 12 (maximum) GEO M6 ceiling mounted......................................................................................................................... 28

6.4 TOURING APPLICATIONS...........................................................................................................................................................29

Described configurations.................................................................................................................................................................. 29

1 to 3 (maximum) GEO M6 pole mounted ................................................................................................................................ 30

1 to 3 GEO (maximum) M6 truss or cable mounted............................................................................................................. 32

1 to 6 (maximum) GEO M6 stacked on Sub.............................................................................................................................. 33

4 to 12 (maximum) GEO M6 flown............................................................................................................................................... 34

6.5 TESTING AND MAINTENANCE OF THE SYSTEM .....................................................................................................................37

7SYSTEM CHECK ALIGNMENT GUIDELINES...................................................................................................... 38

7.1 GEO M6 VERTICAL CLUSTER DESIGN....................................................................................................................................38

7.2 STACKED LS18S AND FLOWN GEO M6 ................................................................................................................................38

7.3 DRIVING THE LS18S FROM THE AUX SEND..........................................................................................................................39

7.4 RECOMMENDED INSTALLATION TOOLS AND EQUIPMENT...................................................................................................39

7.5 GEO M6 –LS18 SYSTEM CHECK LIST...................................................................................................................................40

8TECHNICAL SPECIFICATIONS.............................................................................................................................. 41

CONTENTS

System Manual GEOM6 Page 3/ 64

8.1 LS18 AND LS18-E SUBWOOFERS ..........................................................................................................................................41

System specifications.......................................................................................................................................................................... 41

Dimensions .............................................................................................................................................................................................. 42

8.2 GEO M620 MODULE................................................................................................................................................................43

System specifications.......................................................................................................................................................................... 43

8.3 GEO M6B MODULE ..................................................................................................................................................................45

System specifications.......................................................................................................................................................................... 45

8.4 GEO M6 ACCESSORIES .............................................................................................................................................................47

GMT-BUMPER........................................................................................................................................................................................ 47

GMT-EXBAR ............................................................................................................................................................................................ 48

GMT-LBUMP ........................................................................................................................................................................................... 49

GMT-BPDAPT-2..................................................................................................................................................................................... 50

GMT-LBPADPT....................................................................................................................................................................................... 51

VNT-POLE................................................................................................................................................................................................ 52

VNT-XHBRK ............................................................................................................................................................................................ 53

VNT-TCBRK............................................................................................................................................................................................. 54

VXT-BL515............................................................................................................................................................................................... 55

GMT-FLG........................................................................................................................................................................................ 56

GMI-BNFIX.................................................................................................................................................................................... 57

GMI-IPCOV.................................................................................................................................................................................... 58

VNI-WS15...................................................................................................................................................................................... 59

GMT-6CASE.................................................................................................................................................................................. 60

9GEO M6 SERIES MODULES & ACCESSORIES LIST.......................................................................................... 61

10 USER NOTES .............................................................................................................................................................. 63

PLEASE READCAREFULLY BEFOREPROCEEDING

Page 4/ 64 System Manual GEOM6

GEOTechnologyisradicallynewthinking

The GEO R&D Project has, to date, resulted in the following patent applications:

-variant type horns you know and love (or

able

results.

The Configurable Directivity Flange. A waveguide that allows the operator to alter its behaviour. An unprecedented NEXO

development that is easy to use once you know how and when.

The Phase Directivity Device needs no operator input to function, but it is reassuring to know that the coupling of the midrange

of the system is considered 

DSP-driven Directional Sub-bass devices are a new approach to controlling LF/VLF acoustic energy.

GEOisnothardtousewhenyouunderstand how…

The technology behind GEO is revolutionary, but it is grounded in years of practical experience with the problems of delivering

high quality professional sound to large audiences at high SPL levels. The GEO toolbox includes NS-1 - a simple yet powerful

and highly predictive design tool. The array assembly system is keyed to the design software and will easily enable you to

deploy your design with great precision. NEXODigital TDcontroller technology provide driver protection and system optimization

for the GEO M and MSUB series.

GEOisahighprecisionsystem



forgiving of mistakes. Whilst conventional horns never combine into a coherent array, they may deliver acceptable results even

if the design and deployment of the system is less than optimal. This is not the case with GEO where careless installation

produces catastrophic results.

A GEO Tangent Array is not a “line array”

GEO Technology is equally effective in designing and deploying tangent curved vertical arrays. For best results in a specific

application the user needs to know how multi-speaker arrays interact with audience geometry, along with the benefits and

drawbacks of curved vertical arrays and horizontal arrays.

Curvedtangentarraysrequiredifferentdesigntechniques

In the past, sound reinforcement professionals have worked with horizontal arrays that use conventional horns to deliver [more

 power to equal angles

areas

aiming. The highly precise GEO wavesource responds accurately, consistently and predictably to the design and deployment

of a curved vertical tangent array. This is why the GEO rigging system is designed to control angular splay to 0.1° precision.

GEOcurvedtangentarraysrequiredifferentoperationaltechniques

Over the years, system designers and operators have developed a number of signal processing techniques to disguise and

requency 

of these are tools of the advanced sound system operator. NONE OF THESE TECHNIQUES ARE APPLICABLE TO GEO



Take time to learn how to get great results with GEO Technology. It is an investment that will pay off in more satisfied clients,

more efficient operating procedures and more recognition for your skill as a sound system designer and operator. A

comprehensive understanding of GEO theory, tangent arrays,and specific features of the GEO MSeries will help you to operate

your system at its full potential.

PLEASE READCAREFULLY BEFOREPROCEEDING

System Manual GEOM6 Page 5/ 64

PLEASE READ CAREFULLY BEFORE PROCEEDING

BASIC PRECAUTIONS

Do not open the speaker system or attempt to disassemble the internal parts or modify them in any way. The speaker system

contains no user-serviceable parts. If it should appear to be malfunctioning or damaged, discontinue use immediately and have

it inspected by qualified NEXO service personnel.

Water exposure: Do not expose the speaker system to direct rain, do not use it near water or in wet conditions. Do not place

containers with liquid on speaker system as they might spill into openings. If any liquid such as water seeps into the speaker

system, have it inspected by qualified NEXO personnel.

Sun exposure: Do not expose the speaker system to direct sun.

Operating temperature with temperate climate: 0°C to +40°C (-20°C to +60°C for storage).

SYSTEM DEPLOYMENT SAFETY RULES

Read User Manual before deployment. Before use of enclosed speaker system, please ensure that anyone

involved in system deployment understands the rigging stacking pole mounting safety rules as described

in the speaker system User Manual. Failure to do this exposes people to potential injury or death.

Please check the web site nexo-sa.com for the latest update.

Always consult qualified NEXO personnel if the device installation requires construction work and make sure to observe the

following precautions:

Mounting precautions

- choose mounting hardware and an installation location that can support 4 times the weight of the speaker system;

- do not use speaker system handles for suspended installation;

- do not expose speaker system to excessive dust or vibration, or extreme cold or heat to prevent possibility of component

damage;

- do not place the speaker system in an unstable position from which it might fall accidentally;

- if speaker systems uses a stand, ensure that stand specifications are adapted, and that stand height does not exceed

 while the speaker is in position.

Connection and powering precautions

- remove all connected cables before moving the speaker system;

- the connection should be performed by qualified technician;

- turn off AC power of all power amplifier units before connecting the speaker system;

- when turning on the AC power to the audio system, always turn on the power amplifier last; when turning the AC power off,

always turn off the power amplifier first;

- when used in cold conditions, a gradual power ramp up should applied to the system on an 5 mn period to allow the

loudspeaker components to stabilize during the very first minutes of usage.

Inspect the speaker system periodically.

PLEASE READCAREFULLY BEFOREPROCEEDING

Page 6/ 64 System Manual GEOM6

HIGH SOUND PRESSURE LEVELS

Exposure to extremely high noise levels maycause permanent hearing loss. Individuals vary considerably

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

              

Administration (OSHA) has specified the following permissible noise level exposures: Sound Duration Per

Day In Hours

Sound Level dBA, Slow Response

100

1 ½

102

105

110

¼ or less

115

According to OSHA, any exposure in excess of the above permissible limits could result in some hearing loss. Ear plugs or

protectors to the ear canals or over the ears must be worn when operating this amplification system in order to prevent

permanent hearing loss, if exposure is in excess of the limits as set forth above. 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 such as this amplification system be protected by hearing protectors while this unit is in operation.

DISPOSAL OF OLD ELECTRICAL & ELECTRONIC EQUIPMENT

This symbol on the product or on its packaging indicates that it shall not be treated as household waste.

Instead it shall be handed over to the applicable collection point for the recycling of electrical and electronic

equipment. By ensuring this product is disposed of correctly, you will help prevent potential negative

consequence for the environment and human health, which could otherwise be caused by inappropriate

waste handling of this product.The recycling of materials will help to conserve natural resources. For more

detailed information about recycling of this product, please contact your local city office, your household

waste disposal service or the shop where you purchased the product.

INTRODUCTION

System Manual GEOM6 Page 7/ 64

1INTRODUCTION

Thank you for selecting a NEXO GEO M6 Series Tangent Array System. This manual is intended to provide you with necessary

and useful information about your GEO M6 System, which includes the following products:

•





•GEO M6B is a Bass-Mid Reinforcement module for GEO M620. It

comp

•A full range of accessories provides safe, flexible and simple means of

installing GEO M6 in fixed installation as well as in touring applications.

•GEO M6 are controlled, powered and monitored by NEXO TDcontrollers.

For a complete description of these controllers, please refer to User

Manuals. NEXO TDcontrollers DSP algorithms and parameters are fixed

in software and updated regularly: Please consult the NEXO web site

(nexo-sa.com) for the latest software releases.

•NS-1 simulation software assists in the design and implementation of

vertical tangent GEO arrays. Please consult the NEXO web site (nexo-

sa.com) for the latest software releases.

•Available for Mac, iPad and iPhone, NEXO NeMo provides full remote

control over a digital audio network from anywhere in the venue, thanks

to an intuitive and graphically attractive user interface. NeMo is available

on Apple App Store.

Please devote your time and attention to reading this manual. A comprehensive understanding of GEO M6 specific features will

help you to operate your system at its full potential.

GEO M6 GENERAL SET-UP INSTRUCTIONS

Page 8/ 64 System Manual GEOM6

2GEO M6 GENERAL SET-UP INSTRUCTIONS

2.1 GEO M620 and GEO M6B connections

GEO M620 and GEO M6B are connected with Speakon NL4FC plugs (not supplied). A wiring diagram is printed on the

connection panel located on the back of each cabinet. The 4 pins of the Speakon sockets identified in / out are connected in

parallel within the enclosure.

Either connector can be used to connect amplifier or to link to an additional GEO M6 cabinet or to link to an optional GEO M6B

(if present). Therefore, a single 4-conductor cable can connect two amplifier channels to various GEO M620s and/or GEO M6B.

GEO M620 connectors

GEO M6B connectors

Speakon Connector

M620

1(-)

Through

1(+)

Through

2(-)

GEO M620 (-)

2(+)

GEO M620 (+)

Speakon Connector

M620

1(-)

GEO M6B (-)

1(+)

GEO M6B (+)

2(-)

Through

2(+)

Through

GEO M6 GENERAL SET-UP INSTRUCTIONS

System Manual GEOM6 Page 9/ 64

2.2 Cabling

NEXO recommends the exclusive use of multi-conductor cables to connect the system: the cable kit is compatible with all the

cabinets, and there is no possible confusion between LF, MF and HF sections.

Cable choice consists mainly of selecting cables of the correct sectional dimension (size) in relation to the load resistance and

the cable length. Too small a cable section will increase both its serial resistance and its capacitance; this reduces the electrical

power delivered to the loudspeaker and can also induce response (damping factor) variations.

For a serial resistance less or equal to 4% of the load impedance (damping factor = 25), the recommended cable length is given

by:

Lmax = Z x S S in mm2, Z in Ohm, Lmax in meters

The table below indicates these values, for 3 common sizes.

Load Impedance ()

2.6

5.3

Cable section

Recommended Cable Length

1,5 mm² (AWG #15)

3m/10ft

3m/13ft

6m/20ft

8m/26ft

12m/39ft

24m/79ft

2,5 mm² (AWG #13)

5m/16ft

7m/23ft

10m/33ft

13m/44ft

20m/66ft

40m/131ft

4 mm² (AWG #11)

8m/26ft

10m/33ft

16m/52ft

21m/70ft

32m/105ft

64m/210ft

6 mm2(AWG#9)

12m/40ft

16m/52ft

24m/79ft

32m/104ft

48m/160ft

96m/315ft

Maximum allowed length is 4 times recommended length.

Example:

GEO M6 module has a 8 nominal impedance. When connecting 4 modules in parallel, total load impedance become 2.

Recommended length for 4mm2 / (AWG#10) is 8 m / 26 ft, maximum allowed length is 32 m / 105 ft.

IMPORTANT

Long speaker cables induce capacitive effects –up to hundreds of pF depending on the quality of the

cable - with a low-pass effect on high frequencies. If long speaker cables must be used, ensure that they

do not remain coiled while in use.

2.3 GEO M620 and GEO M6B recommended amplification

NEXO TD Controllers

Recommended amplification

DTD Controller + DTDAMP4x1.3 (4x1.3 kW/4)

2 x GEO M620 per channel

2 x GEO M6B per channel

NXAMP4x1mk2 Powered Controller 4 channels mode (4x1.3kW/2)

3 x GEO M620 per channel

3 x GEO M6B per channel

NXAMP4x2mk2 Powered Controller 4 channels mode (4x2.5kW/2)

4 x GEO M620 per channel

4 x GEO M6B per channel

2.4 GEO M6 setups on NEXO TD Controllers

Please consult nexo-sa.com for NEXO TD Controllers firmware information.

CONNECTION DIAGRAMS

Page 10 / 64 System Manual GEOM6

3CONNECTION DIAGRAMS

3.1 GEO M620 & LS18 / DTDController & DTDAMP4x1.3

Autres manuels pour Geo M6 Series

Ce manuel convient aux modèles suivants

Table des matières

Autres manuels Nexo Système de haut-parleurs

Nexo

Nexo GEO T Series T4805 Manuel utilisateur

Nexo

Nexo PS8 Manuel utilisateur

Nexo

Nexo VNT-MNSTKM6 Manuel utilisateur

Nexo

Nexo PNI-P12TOL15 Manuel utilisateur

Nexo

Nexo GEO S12 Series Manuel utilisateur

Nexo

Nexo PSR2 Series Guide de l'utilisateur

Nexo

Nexo GEO S Series Guide de l'utilisateur

Nexo

Nexo Geo M6 Series Manuel utilisateur

Nexo

Nexo PS8 Manuel utilisateur

Manuels Système de haut-parleurs populaires d'autres marques

JVC

JVC CA-MXK5R Manuel utilisateur

LG NB4532B Manuel utilisateur

JVC

JVC CA-FSH100 Manuel utilisateur

5Core

5Core Pro Series Manuel utilisateur

EAW

EAW MQV1394e Manuel utilisateur

Lynx

Lynx GXR-LA10A Manuel utilisateur

iLive

iLive ITB066B Manuel utilisateur

RDX

RDX QuickStation 4 Manuel utilisateur

Electro-Voice

Electro-Voice S-122 Manuel utilisateur

Sven

Sven SPS-619 GOLD Manuel utilisateur

Pioneer

Pioneer CS-7070 Manuel utilisateur

EAW

EAW UB82e Manuel utilisateur

Sondpex

Sondpex Active Speaker System and Digital Music... Manuel utilisateur

JVC

JVC NX-PN7 Manuel utilisateur

Marshall Amplification

Marshall Amplification AR-DM61-BT Manuel utilisateur

Yamaha

Yamaha NX-A01 - Speaker Sys Manuel utilisateur

SE Audiotechnik

SE Audiotechnik I-LINE Manuel utilisateur

Gemini

Gemini WRX-843 Series Manuel utilisateur