Page 2 - GEO is new technology
P.2 INTRODUCTION GEO is new technology The 3 year GEO R&D Project has generated the following patent applications: • The GEO Hyperboloid Reflective Wavesource™ works on a different principle from the coercive megaphone-variant horns you know and love/hate. If you apply “tried and true” methods t...
Page 3 - TABLE OF CONTENTS; TD
INTRODUCTION P.3 TABLE OF CONTENTS I NTRODUCTION ...........................................................................................................................................................................4 G ENERAL S ET - UP I NSTRUCTIONS ................................................
Page 4 - NTRODUCTION; or
P.4 INTRODUCTION I NTRODUCTION Thank you for selecting NEXO GEO S Series products. This manual is intended to provide you with necessary and useful information about your GEO System, which includes the following products: • S805 5° Tangent Array Module. 8” (20cm) Neodymium Hi-flux 16 Ohm LF Driver a...
Page 5 - ENERAL; Speaker Wiring; S in mm; in meters; Cable section; length L; is
GENERAL SET-UP INSTRUCTIONS P.5 G ENERAL S ET - UP I NSTRUCTIONS Speaker Wiring The loudspeakers are connected to power amplifiers via NL4FC SPEAKON connectors (not supplied). A wiring diagram is printed on the connection panel located on the back of each cabinet. The in/out pins of the SPEAKON sock...
Page 6 - Amplifier Selection; Power
P.6 GENERAL SET-UP INSTRUCTIONS Amplifier Selection Power GEO S8 Series array elements are rated for 500 Watts power handling. Although each array element has a 16 Ohm nominal impedance, NEXO recommends that you connect no more than six S8 Series array elements to a single amplifier channel. The amp...
Page 7 - Gain value
GENERAL SET-UP INSTRUCTIONS P.7 Some examples: Gain Vin 20dB 26dB 32dB 37dB (1.4V sensitivity / 1350Wrms) 0.1V 1V 2V 4V 7.1V 0.5V 5V 10V 20V 35.4V 1V 10V 20V 40V 70.8V Remember that constant sensitivity settings will give a different gain value when the amplifier power is different. Gain value NEXO ...
Page 8 - IGITAL; CONTROLLER SETTINGS; GEO Vertical Arrays; Configure GEO S805 Wideband for 4-8 boxes.
P.8 NX242 DIGITAL TDCONTROLLER SETTINGS NX242 D IGITAL TD CONTROLLER SETTINGS The GEO S Series cabinets will not perform correctly without the NX242 TDcontroller. Sound quality and reliability are totally dependent on the correct use of the NX242 TDcontroller, in accordance with the instructions pro...
Page 9 - GEO Horizontal Tangent Arrays; Configure three GEO S830 Wideband.; Speaker Quantity
NX242 DIGITAL TDCONTROLLER SETTINGS P.9 S805 9-16 boxes CD12 Flown Mono Setup. Input A. Output 1 (back driver of the CD12), Output 2 (front driver of the CD12), Output 3 (GEO), no signal on Output 4. Configure GEO S805 (9-16 boxes) with CD12 flown. GEO Horizontal Tangent Arrays Input/Output Assignme...
Page 10 - Delays & System Alignment; In the following case where; Initial Set-up Precautions
P.10 NX242 DIGITAL TDCONTROLLER SETTINGS Delays & System Alignment The NX242 internal time adjustments (factory presets) have been optimised to provide the best crossover possible between the MAIN and SUB systems. The reference point for this adjustment is the front side of each cabinet. (That m...
Page 11 - EPLOYING; GEO T; ANGENT; Vertical vs. Horizontal
DEPLOYING GEO TANGENT ARRAYS P.11 D EPLOYING GEO T ANGENT A RRAYS Vertical vs. Horizontal One of the advantages of the GEO S Series is the ability to construct coherent vertical and horizontal arrays from the appropriate GEO Tangent Array Modules. These two types of arrays are very different in thei...
Page 12 - GEOS; OFT
P.12 GEOSOFT2 GEOS OFT 2 GEOSoft2 software processes measured speaker data with complex mathematical algorithms to assist the user in designing vertical tangent GEO arrays that provide even SPL throughout the depth of the audience. Due to the complexity of the interaction of multiple cabinets, it is...
Page 13 - SING THE; Installing & removing GEO’s Configurable Directivity flanges; Do not attempt to screw the longer
USING THE CONFIGURABLE DIRECTIVITY DEVICE P.13 U SING THE C ONFIGURABLE D IRECTIVITY D EVICE The GEO Wavesource controls dispersion of acoustic energy using an hyperboloid acoustical reflector in the “coupling plane” (the vertical plane of a curved vertical tangent array) and a diffraction slot in t...
Page 14 - When & where to use Configurable Directivity flanges; without Configurable Directivity flanges
P.14 USING THE CONFIGURABLE DIRECTIVITY DEVICE When & where to use Configurable Directivity flanges The diagram below can be considered as a plan view of the audience area shown in Figure 1. Instead of looking through the sidewall, we are looking through the ceiling. While the GEO cluster will d...
Page 15 - GEO A; PPLICATION; Minimum Array Height (Vertical Tangent Arrays)
GEO APPLICATION GUIDELINES P.15 GEO A PPLICATION G UIDELINES GEO is a highly adaptable and flexible system due to the unique performance factors of the patent-pending Hyperboloid Reflective Wavesource, the Configurable Directivity Device flanges and other innovations. However, like all tools, your G...
Page 16 - SAFETY FIRST; Flown Systems Safety
P.16 GEO TANGENT ARRAY RIGGING SYSTEM GEO T ANGENT A RRAY R IGGING S YSTEM Before proceeding with assembly of GEOS / CD12 arrays, please ensure that the components are present and undamaged. A component list is appended to this manual. In the event of any shortage, please contact your supplier. SAFE...
Page 17 - Ground Stacking Safety
GEO TANGENT ARRAY RIGGING SYSTEM P.17 • Never leave the system unattended during the installation process. • Do not place any object, no matter how small or light, on top of the system during the installation procedure. The object may fall when the system is flown and is likely to cause injury. • Mo...
Page 18 - Contacts; GEO Loudspeakers; ) or 5/16 in pins with spring-loaded locking balls for quicker
P.18 GEO TANGENT ARRAY RIGGING SYSTEM Contacts Correct training is fundamental to safe practise when working with loudspeakers flying systems. NEXO recommend that users contact local industry associations for information on specialist course. Information for International training agencies can be ob...
Page 19 - Fixed Angle-Setting Points; Assembling a curved vertical GEO array; Figure 3
GEO TANGENT ARRAY RIGGING SYSTEM P.19 Angle-setting bar Angles between cabinets are set using the force of gravity The angle setting pivots on the hole marked 1. For all angles up to and including 17.5°, use the oblong hole on the unattached end of the bar (A). This allows you to set the angles of t...
Page 20 - Assembling a vertical GEO tangent array; Figure 5; Lift
P.20 GEO TANGENT ARRAY RIGGING SYSTEM After having positioned the top enclosure, insert the pins into the front and rear attachment points and lock them with R clips (see picture). The bumper’s rear mounting point should be connect to the hole marked “LIFT” on the GEO Angle Adjustment Plate. NOTE: T...
Page 21 - Extension Bar; Figure 7
GEO TANGENT ARRAY RIGGING SYSTEM P.21 Extension Bar - Figure 7 - Figure 8 The GEO Bumper has two lift points, which are adequate for many situations. The extension bar is designed for those applications where the bumper’s lift points are too close together to allow setting the proper tilt angle for ...
Page 22 - Combination GEO/CD12 bumper; The GEO enclosures, attached to the GEO bumper
P.22 GEO TANGENT ARRAY RIGGING SYSTEM Combination GEO/CD12 bumper It is possible to make a single bumper by using the connecting bar to join the GEO bumper and the CD12 bumper. The cluster will then consist of: • The GEO enclosures, attached to the GEO bumper • The CD12 enclosures, attached to the C...
Page 23 - Assembling Horizontal GEO Arrays; . GEO S830 should never be
GEO TANGENT ARRAY RIGGING SYSTEM P.23 Assembling Horizontal GEO Arrays Horizontal GEO arrays are composed exclusively of GEO S830 loudspeakers. In this configuration, it is imperative that the cabinets are “tight packed,” that is arrayed at 30° splay angles, matching the trapezoidal sides of the GEO...
Page 24 - Dimensions & Weights
P.24 GEO TANGENT ARRAY RIGGING SYSTEM Dimensions & Weights GEOS-BUMPER Weight 11kg / 24.25 lbs CD12-BUMPER Weight 15kg / 33 lbs Link BAR (CD12-LINKBAR) Weight 9kg /19.8 lbs GEO/CD12 Extension BAR (EXBAR-S) Weight 4kg / 8.8 lbs
Page 25 - ECHNICAL
TECHNICAL SPECIFICATIONS P.25 T ECHNICAL S PECIFICATIONS GEO S805 SYSTEM SPECIFICATIONS GEO S805 with NX242 TDcontroller Frequency Response [a] 67 Hz – 19 kHz ± 3 dB Usable Range @-6dB [a] 60 Hz – 20 kHz Sensitivity 1W @ 1m [b] 99 dB SPL Nominal -97 dB SPL Wideband Peak SPL @ 1m [b] 125 to 128 dB Pe...
Page 31 - SER
Page 32 - France; 54 allée des Erables
France Nexo S.A. 154 allée des Erables ZAC des PARIS NORD II B.P. 50107 F-95950 Roissy CDG Cedex Tel: +33 1 48 63 19 14 Fax: +33 1 48 63 24 61 E-mail: [email protected] www.nexo-sa.com
