GEO D Series D10 10° Tangent Array Module Geo Sub Directional Sub-bass User Manual GEO D Series User Manual V1.
Page 2/97 PLEASE READ CAREFULLY BEFORE PROCEEDING GEO Technology is radically new thinking The GEO R&D Project has, to date, resulted in the following patent applications: • The GEO Hyperboloid Reflective Wavesource™ differs radically from the megaphone-variant type horns you know and love (or hate). “Tried and true” methods will produce entirely unexpected results. HRW technology produces precise and predictable results. • The Configurable Directivity Flange.
PLEASE READ CAREFULLY BEFORE PROCEEDING Page 3/97 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.
Page 4/97 PLEASE READ CAREFULLY BEFORE PROCEEDING SAFETY INSTRUCTIONS FOR NEXO TD CONTROLLERS NEXO ANALOGUE PSTDCONTROLLERS, NX242 DIGITAL CONTROLLER, NXAMP4x1 AND NXAMP4x4 POWERED CONTROLLERS ARE CLASS 1 APPARATUS AND MUST BE EARTHED. THE GREEN AND YELLOW WIRE OF THE MAINS CORD MUST ALWAYS BE CONNECTED TO AN INSTALLATION SAFETY EARTH OR GROUND. THE EARTH IS ESSENTIAL FOR PERSONAL SAFETY AS WELL AS THE CORRECT OPERATION OF THE SYSTEM, AND IS INTERNALLY CONNECTED TO ALL EXPOSED METAL SURFACES.
PLEASE READ CAREFULLY BEFORE PROCEEDING Page 5/97 HIGH SOUND PRESSURE LEVELS 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 sufficient period of time. The U.S.
Page 6/97 CONTENTS CONTENTS PLEASE READ CAREFULLY BEFORE PROCEEDING ........................................................ 3 CONTENTS............................................................................................................................... 6 1 Introduction ...................................................................................................................... 8 2 GEO D General Set-up Instructions .....................................................................
CONTENTS 7 Page 7/97 System alignment guidelines ........................................................................................72 7.1 GEO SUB – GEO D Cluster design ..........................................................................72 7.2 Stacked GEO SUB’s and Flown GEO D’s ................................................................72 7.3 Flown or Stacked combined GEO SUB’s and GEO D’s clusters..............................73 7.4 Separate GEO SUB and GEO D clusters ..........
Page 8/97 1 INTRODUCTION INTRODUCTION Thank you for selecting a NEXO GEO D Series Tangent Array System. This manual is intended to provide you with necessary and useful information about your GEO System, which includes the following products: • • D10 is a 10° Tangent Array Module. It comprises 2x8” (20cm) 8 Ohms LF Drivers (side firing), 1x12” (30cm) Neodynium 16 ohms LF/MF driver (front) and 1x3” voice coil, 1.4” Throat 16 Ohm HF Driver loaded by a 5° Hyperboloid Reflective Wavesource™.
INTRODUCTION Page 9/97 • GEO D Array Flying System. A fully integrated and accurate flying system that provides safe, flexible and simple means of flying GEO D Tangent Arrays. NOTE: GEO Tangent Arrays control the dispersion of acoustic energy with a high degree of precision. Inclinometers and laser aiming tools are essential to ensure proper audience coverage when installing a GEO Tangent Array.
Page 10/97 2 GEO D GENERAL SET-UP INSTRUCTIONS GEO D GENERAL SET-UP INSTRUCTIONS 2.1 Speaker Wiring 2.1.1 GEO D10 connectors GEO D’s are connected to power amplifiers via one AP6 Male Connector (GEOT-612M) on a link cable that is stowed in the rear vent port. One EP6 Female Chassis (GEOT-613F) on the back connector panel is used as output to feed the next GEO D. A wiring diagram is printed on the connection panel located on the back of each cabinet.
GEO D GENERAL SET-UP INSTRUCTIONS Page 11/97 GEO D SERIAL #0100 to #1610 Please contact NEXO or your local distributor so that instructions and components are sent to you for filter modification GEO D Serial #1611 to above Configuring for Passive Mode (default configuration) • Connector A & B are link together.
Page 12/97 GEO D GENERAL SET-UP INSTRUCTIONS 2.1.4 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.
GEO D GENERAL SET-UP INSTRUCTIONS 2.2.1 Page 13/97 GEO D10 recommended amplification GEO D10 is rated for very high power handling and has a 16 Ohms nominal impedance per channel (Passive 2 ways or Active 3 ways). These high impedance values allow connection of 3 to 6 cabinets in parallel for each amplifier channel.
Page 14/97 2.2.4 GEO D GENERAL SET-UP INSTRUCTIONS Amplifier settings Gain value Gain is the key to correct alignment of the system. It is especially important to know the gain of all amplifiers used in your set-up. The tolerance should be about ±0.5 dB. In practice this can be difficult to achieve because: • Some amplifier brands have an identical input sensitivity for models of different power rating (this infers a different voltage gain for each model).
GEO D GENERAL SET-UP INSTRUCTIONS • Page 15/97 Bridge-Mono: the second signal channel processes the same input as the first channel, but with reversed phase. The (single) load is connected between the two positive channel outputs using a suitable connection. While the total output of the amplifier remains the same, the available output voltage, the minimum impedance that can be connected and the voltage gain are doubled as compared with stereo operation. Typically, only channel 1 input is active.
Page 16/97 3 NS-1 SIMULATION SOFTWARE NS-1 SIMULATION SOFTWARE NS-1 software is a R&D simulation tool derived application. It processes measured speaker data with complex mathematical algorithms to assist the user in optimizing system design. Due to the complexity of the interaction of multiple cabinets, it is simply not possible to reliably design curved vertical arrays without using the processing power of a computer to predict the optimum array structure for a given audience geometry.
CONFIGURABLE DIRECTIVITY DEVICE 4 Page 17/97 CONFIGURABLE DIRECTIVITY DEVICE 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 the “non-coupling plane” (the horizontal plane of a curved vertical tangent array). The patented Configurable Directivity Device consists of bolt-on flanges that alter the diffraction slot’s exit flare rate. 4.
Page 18/97 4.2 CONFIGURABLE DIRECTIVITY DEVICE When & where to use Configurable Directivity flanges The diagrams show audience area coverage for a stereo system. While the GEO cluster will deliver even SPL from the front to the rear of this audience area, there are “holes” near the front in the centre and at the outside edges. We cannot fill the outside coverage gaps without enlarging the centre gap, and vice versa (left figure below).
GEO D RIGGING PROCEDURE 5 Page 19/97 GEO D RIGGING PROCEDURE Before proceeding with assembly of GEO D 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. For maximum efficiency the GEO D rigging system requires three experienced persons for set-up: typically one motor hoist operator, and one GEO D operator per side of the array.
Page 20/97 5.1.2 GEO D RIGGING PROCEDURE • Ensure that motor hoists, hoist control systems and ancillary rigging components are currently certified as safe and that they pass a visual inspection prior to use. • Ensure that public and personnel are not allowed to pass beneath the system during the installation process. The work area should be isolated from public access. • Never leave the system unattended during the installation process.
GEO D RIGGING PROCEDURE 5.1.3 Page 21/97 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.
Page 22/97 5.2 GEO D RIGGING PROCEDURE General Description 5.2.1 GEO D10 and GEO SUB Each GEO D and GEO SUB Array Module includes an individual rigging system, which is mounted at the NEXO factory. GEOD10 ARRAY MODULE GEOS SUB ARRAY MODULE GEO D10 and GEO SUB angle sequences are identical and follow logarithmic scales. Angle setting values are: • Bumper to first cabinet (GEO D10 or GEO SUB): 0° • Cabinet to cabinet (GEOD10 or GEO SUB): 0.20° - 0.315° - 0.50° - 0.80° - 1.25° - 2.0° - 3.15° 5.
GEO D RIGGING PROCEDURE 5.2.
Page 24/97 GEO D RIGGING PROCEDURE 5.2.3 Configurations and operating mode General Principle GEO D10 / GEO SUB rigging system operates in compression mode: pull-back force applied between the extreme bottom cabinet and the top bumper set angles between cabinets. When the array is lifted into position all cabinets are at 0° (1) and it is only when the pull-up force is applied that the correct angles are obtained (2). Bumper angle is then set by adjusting front and rear motors (3).
GEO D RIGGING PROCEDURE Page 25/97 Described Cases Sections below describe GEO D10 and GEO SUB clusters rigging procedures for the following cases: GEO-BRIDLE GEOD-ORP GEOD-EXBAR4 GEOD-BUMPER Section 5.3 GEOD Ground Stacked GEOD-EXBAR1 Section 5.4 GEO D Cluster One Rigging Point GEOD-BUMPER GEOD-BUPDP LEVA750 GEOD-EXBAR4 GEOD-BUMPER GEOD-EXBAR1 GEOD-BTBUMPER Section 5.
Page 26/97 GEO D RIGGING PROCEDURE GEOD-EXBAR4 GEOD-EXBAR4 GEOD-BUMPER GEOD-EXBAR2 GEOD-BUMPER GEOD-EXBAR2 Section 5.6 Combined GEO D – GEO SUB Cluster Two Rigging Points Section 5.
GEO D RIGGING PROCEDURE 5.
Page 28/97 5.3.3 GEO D RIGGING PROCEDURE Bumper to first GEO D10 assembly IMPORTANT GEO D10 can be stacked “Left” or “Right” : - “Left” means Nexo logo on front grid is left as seen from front; - “Right” means Nexo logo on front grid is right as seen from front.
GEO D RIGGING PROCEDURE Page 29/97 BUMPER TO FIRST GEOD ASSEMBLY ‘’LEFT’’ CONFIGURATION 5.3.
Page 30/97 GEO D RIGGING PROCEDURE 4 push-pins (BLGEOD, 10mm diameter x 20 mm length) connect first to second GEO D10, 2 additional push pins-are required for angle adjustment. • Lift and position the next GEO D10 above the assembly, with NEXO logo on the same side than the lower cabinet. • Lower top GEO D10 carefully until the first and second GEO D10 side rigging plates locate. Use front grid, rear vent ports or handle to guide the assembly.
GEO D RIGGING PROCEDURE 5.3.5 Page 31/97 Subsequent GEO D10’s • Repeat the above section steps, until all GEO D10’s are in place. IMPORTANT DO NOT attempt to make any changes to the angle adjustments without releasing weight on the linking bars. 5.3.6 Ground Stacking GEO SUB with Geo D10’s Proceed exactly as above, bottom cabinet must always be a GEO SUB. 6.5˚ 6.5˚ 6.5˚ 6.
Page 32/97 5.
GEO D RIGGING PROCEDURE • Page 33/97 Connect the Short Extension Bar EX1 to the Main Bumper through the Link Points the with the two axes using corresponding holes (see drawing below), and ensure that these axes are properly locked with supplied “R” clips; LINKING GEOD BUMPER AND EXTENSION BAR EXBAR1 • Connect the bridle ring to the motor hoist, the bridle adjustable leg to the front rigging point and the bridle fixed length leg to the rear rigging point; • Attach the chain hook of the LEVA750 or LE
Page 34/97 5.4.3 GEO D RIGGING PROCEDURE Bumper to first GEO D10 assembly IMPORTANT GEO D10 can be flown “Left” or “Right” : - “Left” means Nexo logo on front grid is left as seen from front; - “Right” means Nexo logo on front grid is right as seen from front.
GEO D RIGGING PROCEDURE Page 35/97 FIRST GEO D10 TO BUMPER ASSEMBLY “RIGHT“ CONFIGURATION 5.4.
Page 36/97 GEO D RIGGING PROCEDURE 4 push-pins (BLGEOD, 10mm diameter x 20 mm length) connect first to second GEO D10, 2 additional push pins-are required for angle adjustment. • Lift bumper and top GEO D10 assembly, and position the next GEO D10 below the assembly, with NEXO logo on the same side than the upper cabinet. • Lower bumper and top GEO D10 assembly carefully until the first and second GEO D10 side rigging plates locate. Use front grid, rear vent ports or handle to guide the assembly.
GEO D RIGGING PROCEDURE 5.4.5 5.4.6 Page 37/97 Subsequent GEO D10’s • Repeat the above section steps, until all GEO D10’s are in place. As the assembly is lifted, angles between GEO D10’s cabinets will remain at 0° whatever the linking bar positions. • NB : angle settings are free to be adjusted while the system is clear of the ground, provided that rear pull-up force is not applied.
Page 38/97 GEO D RIGGING PROCEDURE IMPORTANT DO NOT attempt to make any changes to the angle adjustements when the compression pull-up force is applied. 5.4.
GEO D RIGGING PROCEDURE 5.4.8 Page 39/97 De-rigging and loading out Taking the system down is just a case of doing the reverse procedure to flying the array. However, there are some important factors to consider. • Lower the array until the bottom cabinet is just off the floor; • Rotate the chain hoist lever counter-clockwise until bumper is back to horizontal position and no tension is applied on the GEO D compression chain.
Page 40/97 5.4.9 GEO D RIGGING PROCEDURE Rigging and De-rigging with GEOD Dolly Storage Tray IMPORTANT GEOD Dolly Storage Tray are designed for 3 or 4 GEO D’s + bumper or case ; GEOSUB Dolly Storage Tray is designed for up to 2 GEO SUB’s + bumper or case. Never exceed these quantities.
GEO D RIGGING PROCEDURE 5.
Page 42/97 GEO D RIGGING PROCEDURE CONNECTING FRONT, REAR MOTORS AND CHAIN LEVEL HOIST 5.5.2 Bumper to first GEO D10 assembly IMPORTANT GEO D10 can be flown “Left” or “Right” : - “Left” means Nexo logo on front grid is left as seen from front; - “Right” means Nexo logo on front grid is right as seen from front.
GEO D RIGGING PROCEDURE Page 43/97 • Position the bumper on the first GEO D10 by lifting or lowering bumper assembly with motor hoists; • Link the GEO D10 to the bumper assembly using the four 10mm x 20mm push-pins; front bumper connects at GEO D10 front articulation point, rear bumper connects at “LIFT” GEO D10 rigging plates holes; • Check that all push-pins are in their locked position.
Page 44/97 GEO D RIGGING PROCEDURE 4 push-pins (BLGEOD, 10mm diameter x 20 mm length) connect first to second GEO D10, 2 additional push pins-are required for angle adjustment. • Lift bumper and top GEO D10 assembly, and position the next GEO D10 below the assembly, with NEXO logo on the same side than the upper cabinet. • Lower bumper and top GEO D10 assembly carefully until the first and second GEO D10 side rigging plates locate. Use front grid, rear vent ports or handle to guide the assembly.
GEO D RIGGING PROCEDURE 5.5.4 5.5.5 Page 45/97 Subsequent GEO D10’s • Repeat the above section steps, until all GEO D10’s are in place. As the assembly is lifted, angles between GEO D10’s cabinets will remain at 0° whatever the linking bar positions. • NB : angle settings are free to be adjusted while the system is clear of the ground, provided that rear pull-up force is not applied.
Page 46/97 GEO D RIGGING PROCEDURE IMPORTANT DO NOT attempt to force on LEVA750 or LEVA1500 lever once you feel it resisting strongly to rotation; you might damage GEO D flying system by doing so. IMPORTANT DO NOT attempt to make any changes to the angle adjustements when the compression pull-up force is applied. 5.5.
GEO D RIGGING PROCEDURE 5.5.7 Page 47/97 De-rigging and loading out Taking the system down is just a case of doing the reverse procedure to flying the array. However, there are some important factors to consider. • Lower the array running the two motor hoists simultaneously until the bottom cabinet is just off the floor, main bumper being horizontal. • Rotate the chain hoist lever counter-clockwise until there is no tension on the GEO D compression chain and no compression on the system.
Page 48/97 5.5.8 GEO D RIGGING PROCEDURE Rigging and De-rigging with GEOD Dolly Storage Tray IMPORTANT GEOD Dolly Storage Tray are designed for 3 or 4 GEO D’s + bumper or case ; GEOSUB Dolly Storage Tray is designed for up to 2 GEO SUB’s + bumper or case. Never exceed these quantities.
GEO D RIGGING PROCEDURE 5.6 Page 49/97 GEO SUB – GEO D Combined Cluster Flying Setup (2 motors required) Flying a GEO SUB – GEO D combined cluster is very similar to what has been described in the above section, except a long Extension Bar EX2 (instead of EX1) is required to extend top compression point because of GEO SUB depth. However, the section below details all steps to be completed for a safe setup.
Page 50/97 GEO D RIGGING PROCEDURE • If strong positive tilt is required, front rigging point as to be extended further; connect the Front Extension Bar Bumper through the Link Points the with the two axes using corresponding holes (see drawing below), and ensure that these axes are properly locked with supplied “R” clips; • Link the motor hoists to the Bumper – Extension Bar assembly to Front and Rear Rigging Points with the two axes using corresponding holes (see drawing below), and ensure that these
GEO D RIGGING PROCEDURE Page 51/97 4 push-pins (BLGEOD, 10mm diameter x 20 mm length) connect the top GEO SUB to the bumper. • Position the bumper on the first GEO SUB by lifting or lowering bumper assembly with motor hoists; • Link the GEO SUB to the bumper assembly using the four 10mm x 20mm push-pins; front bumper connects at GEO SUB front articulation point, rear bumper connects at “LIFT” GEO SUB rigging plates holes; • Check that all push-pins are in their locked position.
Page 52/97 GEO D RIGGING PROCEDURE • Lift bumper and top GEO SUB assembly, and position the next GEO SUB below the assembly, with NEXO logo on the same side than the upper cabinet. • Lower bumper and top GEO SUB assembly carefully until the first and second GEO SUB side rigging plates locate. Use front grid, rear vent ports or handle to guide the assembly. The rigging plates have been designed to locate against each other and so align the holes correctly.
GEO D RIGGING PROCEDURE Page 53/97 • Insert two additional 10mm x 20mm push-pins in the front holes (see figure above). • Lift the bumper and two first GEO SUB’s to a height that allows convenient access to the linking bars and the angle setting holes. • Insert 1 additonal push-pin to the required angle value hole on each side • Check that all 6 push-pins are locked. IMPORTANT Ensure angle settings are identical on both sides of the cabinet. 5.6.
Page 54/97 GEO D RIGGING PROCEDURE IMPORTANT Ensure angle settings are identical on both sides of the cabinet. 5.6.5 First to second GEO D 10 4 push-pins (BLGEOD, 10mm diameter x 20 mm length) connect first to second GEO D10, 2 additional push pins-are required for angle adjustment. • Lift cluster, and position the next GEO D10 below the assembly, with NEXO logo on the same side than the upper cabinet. • Lower cluster carefully until the first and second GEO D10 side rigging plates locate.
GEO D RIGGING PROCEDURE Page 55/97 IMPORTANT Ensure angle settings are identical on both sides of the cabinet. 5.6.6 5.6.7 Subsequent GEO D10’s • Repeat the above section steps, until all GEO D10’s are in place. As the assembly is lifted, angles between GEO D10’s cabinets will remain at 0° whatever the linking bar positions. • NB : angle settings are free to be adjusted while the system is clear of the ground, provided that rear pull-up force is not applied.
Page 56/97 GEO D RIGGING PROCEDURE IMPORTANT DO NOT attempt to force on LEVA750 or LEVA1500 lever once you feel it resisting strongly to rotation; you might damage GEO D flying system by doing so IMPORTANT DO NOT attempt to make any changes to the angle adjustements when the compression pull-up force is applied. 5.6.
GEO D RIGGING PROCEDURE 5.6.9 Page 57/97 De-rigging and loading out Taking the system down is just a case of doing the reverse procedure to flying the array. However, there are some important factors to consider. • Lower the array running the two motor hoists simultaneously until the bottom cabinet is just off the floor, main bumper being horizontal. • Rotate the chain hoist lever counter-clockwise until there is no tension on the compression chain and no compression on the system.
Page 58/97 5.
GEO D RIGGING PROCEDURE • Page 59/97 Connect the Long Extension Bar EX2 to the Main Bumper through the Link Points the with the two axes using corresponding holes (see drawing below), and ensure that these axes are properly locked with supplied “R” clips; LINK POINTS LINK POINTS LINKING GEOD BUMPER AND EXTENSION BAR EX2 • If strong positive tilt is required, front rigging point as to be extended further; connect the Front Extension Bar Bumper through the Link Points the with the two axes using corresp
Page 60/97 GEO D RIGGING PROCEDURE ‘’LEFT’’ CONFIGURATION ’’RIGHT’’ CONFIGURATION 4 push-pins (BLGEOD, 10mm diameter x 20 mm length) connect the top GEO SUB to the bumper.
GEO D RIGGING PROCEDURE 5.7.3 Page 61/97 First to second GEO SUB 4 push-pins (BLGEOD, 10mm diameter x 20 mm length) connect first to second GEO SUB, 2 additional push pins-are required for angle adjustment. FIRST TO SECOND GEO SUB • Lift bumper and top GEO SUB assembly, and position the next GEO SUB below the assembly, with NEXO logo on the same side than the upper cabinet. • Lower bumper and top GEO SUB assembly carefully until the first and second GEO SUB side rigging plates locate.
Page 62/97 GEO D RIGGING PROCEDURE « SAFETY PIN MUST BE FITTED » HOLE IMPORTANT Ensure angle settings are identical on both sides of the cabinet. 5.7.4 Subsequent GEO SUB’s • Repeat the above section steps, until all GEO SUB’s are in place. As the assembly is lifted, angles between GEO SUB’s cabinets will remain at 0° whatever the linking bar positions. • NB : angle settings are free to be adjusted while the system is clear of the ground, provided that rear pull-up force is not applied.
GEO D RIGGING PROCEDURE 5.7.5 Page 63/97 Applying compression with the Chain Lever Hoist • Once the GEO SUB assembly is completed, connect the second GEO D Main Bumper below the last GEO SUB with the 10mm x 20mm push-pins inserted in the “FIX” bottom hole (see drawings below).
Page 64/97 GEO D RIGGING PROCEDURE • Rotate the fingerwheel clockwise until the chain is taught; • Make a final check that the Chain Lever Hoist is correctly installed; • Rotate the lever to apply the pull-up force to the bottom of the array; notice that, as the chain gets shorter, the cabinets in the array close together to the angles set by the angle adjustments pushpins; As the chainload tensions, ensure that no twisting occurs on the chain; • When all of the cabinets are closed together, requir
GEO D RIGGING PROCEDURE 5.7.7 Page 65/97 De-rigging and loading out Taking the system down is just a case of doing the reverse procedure to flying the array. However, there are some important factors to consider. • Lower the array running the two motor hoists simultaneously until the bottom cabinet is just off the floor, main bumper being horizontal. • Rotate the chain hoist lever counter-clockwise until there is no tension on the GEO SUB compression chain and no compression on the system.
Page 66/97 5.9 GEO D RIGGING PROCEDURE • place bolts and nuts according to drawing below • re-install the grid, being carefull that the NEXO logo must be on the GEO Waveguide side. Testing and Maintenance of the system • General: Geo is a precision piece of equipment and requires regular attention to maintenance in order to give long and reliable service. NEXO recommends regular testing of loudspeaker rigging components, preferably using a suitable test rig coupled with a visual inspection.
NEXO NX242 DIGITAL CONTROLLER FOR GEO D AND GEO SUB 6 Page 67/97 NEXO NX242 DIGITAL CONTROLLER FOR GEO D AND GEO SUB IMPORTANT GEO SUB and GEOD10 use latest NEXO proprietary sophisticated DSP algorithm, which require additional resources from the NX-Tension ES4 Card. All available GEO SUB and GEO D10 setups require that NX-ES4 card is installed in NX242 TD Controller. 6.1 NX242 Proprietary Functions The NX242 is much more than a “generic” Digital Signal Processor.
NEXO NX242 DIGITAL CONTROLLER FOR GEO D AND GEO SUB OUTPUT CHANNEL 4 Page 68/97 6.1.3 Protection VCAs and VCEQs DAC Each channel has its own simulation and protection process. EQ NX242 Digital TDcontroller Partial BLOCK DIAGRAM MUTE Each audio channel contains a combination of controlled gain stages (let's call them VCAs as in analogue circuitry).
NEXO NX242 DIGITAL CONTROLLER FOR GEO D AND GEO SUB Page 69/97 The Physio control voltage acts independently on the VCA with its operation threshold slightly (3 dB) above that of the temperature limiter and a low compression ratio; its optimised attack time constant allows it to start operating without any subjectively unpleasant transient effects.
Page 70/97 6.3.3 NEXO NX242 DIGITAL CONTROLLER FOR GEO D AND GEO SUB GEO SUB (Stereo Setups) Hardware configuration 6.3.4 • Input (L, R or L+R) can be selected in MENU 3.2 • Output 1 drives left GEO SUB side-firing 12 inch transducers; • Output 2 drives left GEO SUB 18 inch transducer; • Output 3 drives right GEO SUB side-firing 12 inch transducers; • Output 4 drives right GEO SUB front 18 inch transducer. GEO SUB & GEO D Passive (Mono Setups) Hardware configuration 6.3.
NEXO NX242 DIGITAL CONTROLLER FOR GEO D AND GEO SUB 6.4.2 Page 71/97 Amplifier Power (MENU 2.7) If the amplifier power (MENU 2.7) is set to a value below the amplifer’s actual power, the peak limiter of the NX242 will trigger continually, creating audible distortion. Please note that this peak limiter is not set to act as a compressor on the signal. It is intended to minimize the clipping of the amplifier by operating slightly after the amplifier’s clipping point.
Page 72/97 7 SYSTEM ALIGNMENT GUIDELINES SYSTEM ALIGNMENT GUIDELINES The NX242’s factory delay presets are optimised to provide the best possible crossover between the GEO D and GEO SUB systems. The reference point for this adjustment is the front of each cabinet. (This means that the internal delays needed to achieve a correct time alignment are set for cabinets standing next to each other with both fronts aligned).
SYSTEM ALIGNMENT GUIDELINES 7.3 Page 73/97 Flown or Stacked combined GEO SUB’s and GEO D’s clusters Recommended NX242 setup family: OVERLAP When GEO SUB’s are flown or stacked within the GEO D array, GEO SUB delay should be set at the same value than GEO D’s, ie there should be no delay difference between systems. 7.4 Separate GEO SUB and GEO D clusters Delay must be set to compensate for horizontal distance offset between front edges.
Page 74/97 SYSTEM ALIGNMENT GUIDELINES Consequences of badly aligned systems Mis-aligned systems have lower efficiency: i. e. for the same SPL the system will have to be driven harder, activating the displacement & temperature protection at lower output levels. Both sound quality and reliability will decrease as the system is stressed.
GEO D – GEO SUB ARRAY SYSTEM CHECK LIST 8 Page 75/97 GEO D – GEO SUB ARRAY SYSTEM CHECK LIST It is essential to execute all these check steps prior to perform a sound check on the “front end” to the system. Following this checklist step by step will prevent many troubles and will save time in the end. 8.1 Are the NX242 Digital TDcontrollers properly configured? IMPORTANT If you must change any of the parameters listed above, make sure that you use the same values on all NX242’s. 8.1.
Page 76/97 GEO D – GEO SUB ARRAY SYSTEM CHECK LIST only are on. When listening from the front, you should hear a strong increase in the LF range when connecting the rear drivers. 8.5 • To check that all front elements have the proper amplitude and phase, you should listen to the upper boxes at a close distance (<1 meter). You should be able to move from the top to the bottom of the cluster without hearing any change in the tonal balance.
TECHNICAL SPECIFICATIONS 9 Page 77/97 TECHNICAL SPECIFICATIONS 9.1 GEO D10 Vertical Tangent Array Module 9.1.1 System specifications PRODUCT FEATURES Components GEO D10 Shape HF: 1 x 3” voice coil, 1.4” throat 16 Ohms driver on a 5° hyperboloid reflective wavesource. MF/LF (front-firing): 1 x 12” (30cm) high excursion neodymium 16 Ohm driver. LF (side-firing): 2 x 8” (20cm) neodymium 8 Ohm drivers in series.
Page 78/97 [15"] 380 mm [13 1/2"] 344 mm GEO D10 Dimensions 10° 9.1.2 TECHNICAL SPECIFICATIONS [29 1/2"] 750 mm [29 1/2"] 744 mm 9.1.
TECHNICAL SPECIFICATIONS 9.2 Page 79/97 GEO SUB Directional Sub-Bass 9.2.1 System specifications PRODUCT FEATURES Components GEO SUB Height x Width x Depth 1 x 18” (46cm) long excursion neodymium 8 Ohm drivers & 2 x 12“ (30cm) neodynium drivers 515 x 744 x 1131 mm (20 1/2” x 29 1/2” x 44 1/2”) Shape 10° Trapezoïdal Weight: Net 86 kg (189.6 lbs) Connectors 2 x NL4MP SPEAKON 4 pole (In & Through) Construction Baltic birch ply finish with structured black coating.
Page 80/97 TECHNICAL SPECIFICATIONS [20 1/2"] 515 mm [20 3/8"] 518 mm GEO SUB dimensions 10° 9.2.2 [44 1/2"] 1131 mm [29 1/2"] 744 mm 9.2.
TECHNICAL SPECIFICATIONS Page 81/97 9.3 GEO D / GEO SUB Rigging system 9.3.1 GEO D / GEO SUB Bumper [27 1/2"] 702 mm [10"] 254 mm [28"] 715 mm WEIGHT : 45 KG / 99.2 LBS GEO D Short Extension Bar EX1 [3 1/2"] 95 mm [2 1/2"] 65 mm [18 1/2"] 472 mm 9.3.2 WEIGHT : 5.3 KG / 11.
Page 82/97 TECHNICAL SPECIFICATIONS 9.3.3 9.3.4 GEO D – ORP (Compression Wheel for EX1 Only) 95 mm 25.5 mm 51 mm WEIGHT: 0.250KG / 0.55 LBS GEO BRIDLE WEIGHT: 3 KG / 6.6 LBS GEO D Long Extension Bar EX2 [3 1/2"] 95 mm [2 1/2"] 65 mm [41 1/2"] 1052 mm 9.3.6 WEIGHT: 13.1 KG / 28.9 LBS m 0m 100 995 mm 9.3.
TECHNICAL SPECIFICATIONS GEO SUB Bottom Extension Bar EX3 [48"] 1225 mm [2 1/2"] 65 mm [3 1/2"] 95 mm 9.3.7 Page 83/97 WEIGHT: 16.1 KG / 35.5 LBS GEO D Front Extension Bar EX4 [8 1/2"] 216 mm 9.3.8 [14 1/2"] 367mm [2 1/2"] 65 mm WEIGHT: 6.9 KG / 15.2 LBS [2 1/2"] 69 mm GEO D Bottom Bumper [28 1/2"] 722 mm [11"] 278 mm 9.3.9 WEIGHT: 10.4 KG / 22.
Page 84/97 TECHNICAL SPECIFICATIONS 9.3.10 GEO D Chain Lever Hoists MAX LOAD 750 KG / 1650 LBS MAX LOAD 1500 KG / 3300 LBS WEIGHT: 10.3 KG / 22.7 LBS WEIGHT: 23.7 KG / 52.2 LBS CHAIN LENGTH: 6 M / 16.7 FT CHAIN LENGTH: 9M / 29.5 FT 9.3.11 GEO D / GEO SUB Push-Pins 10 mm 20 mm WEIGHT: 0.046 KG / 0.
TECHNICAL SPECIFICATIONS 9.4 9.4.1 Page 85/97 NX242 TDcontroller with NX-Tension Card Specifications SPECIFICATIONS NX242 Digital TDcontroller Output Level +28 dBu Max. into 600 Ohm load Dynamic Range 110 dBu THD + Noise < 0.002% flat setup (for output at 27.5dBu) Latency time 1.7ms on a flat setup Power Supply 90V-260V FEATURES Audio Inputs 2 Audio Inputs 24 bit converters Electronically Balanced, 50k Ohm. 2 XLR-3F Connectors.
8 SENSE 4 7 SENSE 3 6 SENSE 2 5 SENSE 1 INPUT L A/D A/D A/D A/D HEADROOM 0 0 AMP POWER Signal EQ 2 EQ Signal AMP POWER Signal AMP POWER AMP POWER Signal AMP VOLTAGE AMP GAIN FALLBACK AMP VOLTAGE AMP GAIN FALLBACK AMP VOLTAGE AMP GAIN FALLBACK AMP VOLTAGE AMP GAIN FALLBACK INPUT VU-METER A/D INPUT VU-METER A/D Command Command ChassisTemp. Voice Coil Temp. 9 Command ChassisTemp. Voice Coil Temp. Command Command ChassisTemp. Voice Coil Temp.
CONNECTION DIAGRAMS Page 87/97 10 CONNECTION DIAGRAMS 10.
Page 88/97 CONNECTION DIAGRAMS 10.2 GEO D cluster to amplifiers and NX242 (Mono active mode) FROM AMPLIFIERS TO AMPLIFIERS N.C. HF LF/MF LF FRONT REAR LF REAR LF/MF FRONT HF +3- +2- +1- 1 (-) / 2 (+) REAR LF 3 (-) / 4(+) FRONT LF/MF 5 (-) / 6 (+) HF EP6 F STEREO FRONT HF + LF/MF STEREO LINK REAR LF STEREO EP6 F FRONT HF + LF/MF MONO ACTIVE MODE N.C.
CONNECTION DIAGRAMS Page 89/97 10.
Page 90/97 GEO D SERIES PARTS & ACCESSORIES LIST 11 GEO D SERIES PARTS & ACCESSORIES LIST 11.1 Array Modules & Control Electronics List MODEL DRAWING GEO D10 DESCRIPTION GEO D 10° Cardioid Main Module GEO SUB GEO SUB 10° Cardiod Sub-Bass Module ANX 242 Digital TDcontroller for PS, Alpha and Geo series NX-ES4 Ethersound Network & DSP Card for NX242 11.
GEO D SERIES PARTS & ACCESSORIES LIST MODEL DRAWING GEOD-EXBAR 2 Page 91/97 DESCRIPTION Geo D Extension Bar for GEO D10 / GEOSUB Cluster GEOD-EXBAR 3 Geo D Bottom Extension Bar for GEOSUB Cluster GEOD-EXBAR4 Geo D Front Extension Bar for GEO D10 / GEO SUB Clusters LEVA1500 Chain Lever Hoist 1.5 tonne (9 meters chain length) LEVA750 Chain Lever Hoist 0.
Page 92/97 GEO D SERIES PARTS & ACCESSORIES LIST MODEL DRAWING DESCRIPTION Nylon Cover for GEOD-DCOVER • 3 GEO D10 • 1 GeoD-BKM or 1GEOD-BUMPER • 1 GEOD-DOLLY Nylon Cover for GEOD-DCOVER4 • 4 GEO D10 • 1 GeoD-BKM or 1GEOD-BUMPER • 1 GEOD-DOLLY Nylon Cover for GEOSUB-DCOVER • 2 GEO SUB • 1 GeoD-BKM or 1GEOD-BUMPER • 1 GEOSUB-DOLLY GEOD-RAINCOBP Rain Cover for GEOD-BUMPER GEOD-RAINCO Rain Cover for up to 4 GEOD BLT-RAP T-RAP for BLGEOD GEOT-CABLE GEOT-613F GEOT-612M 1m Cable
USER NOTES 12 USER NOTES Page 93/97
Page 94/97 USER NOTES France Nexo S.A. PA du Pré de la Dame Jeanne BP5 F-60128 PLAILLY- FRANCE Tel: +33 3 44 99 00 70 Fax: +33 3 44 99 00 30 E-mail: info@nexo.fr www.nexo-sa.
