Related Manuals for Turbosound LMS-D24
Summary of Contents for Turbosound LMS-D24
- Page 1 ASPECT TA-890 SYSTEM USER MANUAL Turbosound Ltd. Star Road, Partridge Green West Sussex RH13 8RY United Kingdom Tel: +44 (0)1403 711447 Fax: +44 (0)1403 710155 web: www.turbosound.com Issue 1.3 © Turbosound Ltd, October 2005...
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Page 2: Table Of Contents
Turbosound Aspect System Concepts ... 7 The Turbosound Polyhorn™... 7 Aspect TA-890 Turnkey System Concept... 9 The Loudspeaker Management System (LMS) Concept... 10 LMS-D24, LMS-D26 and LMS-D6 Loudspeaker Management Systems... 10 Amplifier Racks... 10 Power Amplifiers... 10 Digital Controllers ... 11 Aspect Loudspeaker Components... - Page 3 TA-890 Setting up a Venue - Overview... 17 Running Turbosound GigMate™ / EASE Focus for the first time: ... 18 Designing a system ... 20 Changing the system ... 23 Safety Notes on Rigging ... 25 Sample Certificate of Load Test ... 26 Flying Hardware ...
- Page 4 Powering Up ... 50 Audio Connections ... 51 Input and Output Connector Wiring... 51 Time correction for loudspeaker driver placement ... 51 LMS-D24 and D26 LOUDSPEAKER MANAGEMENT SYSTEMS ... 52 Features ... 52 Front Panel Functions ... 53 Rear Panel Functions... 55 Operating the LMS-D24 and D26...
- Page 5 Utility functions ... 69 Rear Panel Functions... 70 AMP-890 Aspect System Amplification Rack ... 71 Racking, Cables and Connections ... 71 Options... 72 Input Connections ... 72 Figure 1. Amplifier Rack Signal Wiring ... 73 Output Connections ... 73 Figure 2. Mid-High Outputs ... 74 Figure 3.
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Page 6: User Manual Ta
Star Road, Partridge Green, West Sussex, RH13 8RY, UK Products T-25 Power Amplifier T-45 Power Amplifier LMS-D6 Loudspeaker Management System LMS-D24 & LMS-D26 Loudspeaker Management System Standards Safety Relevant Specifications used as basis for tests Category Professional apparatus for use in Commercial Light Industrial and controlled EMC environments. -
Page 7: Introduction
TA-890 INTRODUCTION Turbosound Aspect System Concepts The TA-890 system is a modular point source loudspeaker system designed to deliver extremely high fidelity audio. The system is easily scaleable from large and medium scale concert touring applications to small clubs and events. - Page 8 user manual TA-890 Conventional HF horns produce destructive interference Poyhorn™ - smoothly curved wavefront The TA-890H mid-high enclosure forms the main component of flown clusters, and can be orientated either horizontally or vertically (the mid/high section pictured above is square and rotatable) in order to match venue specifics such as rigging height and audience sightline restrictions.
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Page 9: Aspect Ta-890 Turnkey System Concept
ASPECT TA-890 TURNKEY SYSTEM CONCEPT Aspect is available as an integrated audio system package, comprising loudspeakers with integral flying hardware, amplifier racks and all necessary drive and control equipment in an extremely compact and manageable form. In addition, the system has been designed to truck pack efficiently and handle easily. -
Page 10: The Loudspeaker Management System (Lms) Concept
Power Amplifiers In addition to the Turbosound T-25 and T-45 model amplifiers supplied with turnkey Aspect systems, the following other power amplifier brands provide sufficient performance and mechanical compatibility to perform well with Aspect loudspeaker systems:... -
Page 11: Digital Controllers
All the drive units have been designed in-house specifically for the Aspect system and are manufactured exclusively for Turbosound. This means that they are expressly suited to their intended purpose, and make use of innovative features to ensure premium performance. -
Page 12: Tsw-218 Subwoofer
15º vertical. This high Q provides the projection necessary for true long throw applications such as large arena and outdoor productions. The Polyhorn™ and TurboMid™ devices are unique to Turbosound and are covered by principle patents world-wide. They utilise specialised forms of horn loading which provide exceptionally low distortion and high efficiency from cone-type drive units. - Page 13 user manual TA-890 It includes a hinged rear access door, integral multi-way speaker cable, removable wheel board, ergonomically placed flush handles, weatherised beech plywood construction and optimised truck-pack dimensions. The TA-890H enclosure is exactly the same size as, and of very similar weight to, the TA-890L.
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Page 14: Transportation
user manual TA-890 Transportation TA-890 cabinets include a removable wheelboard which clips to the front of the cabinet, allowing single units to be conveniently transported. These are designed to be stackable, so that when not in use they can be neatly stored without taking up floor space. The wheelboards will fit both mid-high and low frequency cabinets. -
Page 15: Aspect Flying Systems
user manual TA-890 Aspect Flying Systems To take full advantage of the very precise dispersion properties of the Aspect system, an integral rigging system has been developed. The flying system is inherently safe, flexible and simple to use, and even though it is integral to the box, it may be quickly and easily removed for safety testing. -
Page 16: Flying And Stacking
user manual TA-890 FLYING AND STACKING Overview The Aspect system flying hardware is specifically designed to take advantage of the precise horizontal directivity characteristics, as well as allow a wide range of adjustment of the vertical angles between adjacent enclosures, and the overall vertical inclination of each column of enclosures. -
Page 17: Gigmate™ Acoustic Simulation
PA. In order to aid in this process, Turbosound offers the GigMate™ software acoustic simulation package, a version of the generic EASE Focus program that is based on current EASE 4.1 data. -
Page 18: Running Turbosound Gigmate™ / Ease Focus For The First Time
TA-890 Running Turbosound GigMate™ / EASE Focus for the first time: When you first start the program you must set the system file that it is to use. The installation files include two Turbosound Aspect System files as shown below: Select the Touring version cabinets. - Page 19 user manual TA-890 The screen is split into four main areas: System Setup The left hand side of the screen is where you define the system, auditorium and project. Tabs On the bottom of this window allow you to toggle between modes. Mapping Properties This is the main window which will display the system as configured in the System Setup window along with the audience areas and mappings.
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Page 20: Designing A System
user manual TA-890 Designing a system To design a system begin by defining the venue/audience areas by clicking on the “Audience Area” tab in the bottom left of the screen. Within this window you can edit or remove existing audience areas, and create new ones. There are two methods of defining an audience area. - Page 21 user manual TA-890 Now select the number of cabinets deep that you wish to hang or stack from the “Box Count” drop-down menu. Trim height, or PA wing height can now be set in the “Position” field. If a mix of Low and High cabinets are to be used then select in the “Cabinet” window the type and location in the array of each box.
- Page 22 user manual TA-890 Now that the general design has been established the system performance must be mapped. At the top of the main window there is an “SPL Mapping” checkbox. This will map the system output at the frequency and bandwidth selected in the adjacent dropdown boxes. For most applications a one-third octave mapping gives realistic and useful data.
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Page 23: Changing The System
user manual TA-890 The Audience Area graph at the bottom of the window shows the SPL, as specified in the SPL Mapping lists, on the selected Audience Area. The selected area is highlighted in the main window and the graph is repeated onto each area. Selecting the “Combined Level View” tab will show the SPL across all areas simultaneously. - Page 24 user manual TA-890 Two typical examples are shown here. theatre-style venue: 3-wide flown cluster @ 1kHz Small arena system; 2-wide by 5 deep flown cluster @ 4kHz TA-890 user manual Page 24...
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Page 25: Safety Notes On Rigging
TA-890 Safety Notes on Rigging The Turbosound TA-880 system has been designed and constructed to a high standard of safety, and tested to the most demanding of specifications with a safety factor of 13:1. Always wear protective headwear, footwear and eye protection in accordance with local regulations. -
Page 26: Sample Certificate Of Load Test
user manual TA-890 Sample Certificate of Load Test TA-890 user manual Page 26... -
Page 27: Flying Hardware
Flying Hardware The ‘A’ system flying bars consist as follows: • Single bar – supports a vertical column of cabinets up to 8 deep. • Twin bar – supports two vertical columns up to 8 deep. • Triple bar – supports three vertical columns from a single pick-up point or with chain bridles, specifically designed for outdoor use with ground support towers •... -
Page 28: Figure 1. Single A-System Flybar Fb-890/1A
user manual TA-890 Figure 1. Single A-System Flybar FB-890/1A The single flybar is fabricated from box steel section with integral lifting point, safety point, enclosure suspension tabs and tilting strap pick-up point, designed to fly a single box or vertical column of boxes up to eight deep. The bar can be flown from a single one-tonne motor. -
Page 29: Figure 2. Double A-System Flybar Fb-890/2A
user manual TA-890 Figure 2. Double A-System Flybar FB-890/2A A fixed angle double bar fabricated from box steel section and designed to fly two vertical columns of cabinets up to eight deep per column. It provides alternative cabinet suspension tabs and tilt strap points for narrow or wide configurations (when flying more than four boxes deep the wide configuration allows for the additional amount of kelp required), plus lifting points and safety points. -
Page 30: Figue 3. Triple 'A' System Flybar Fb-890A/3W
user manual TA-890 Figue 3. Triple ‘A’ System Flybar FB-890A/3W A fixed angle triple bar designed to fly three vertical columns of cabinets in the ‘A’ or horizontal orientation. It provides both narrow and wide configuration settings in order to accommodate deep arrays of up to eight cabinets. -
Page 31: Fc-890 Flying Chains
user manual TA-890 FC-890 Flying Chains An adjustable length flying chain, consisting of a top hook, chain with adjusting choke, and a cabinet link, is used to connect the cabinets to the flybars. The top chain from the flybar to the first cabinet can be adjusted to gain more height on the system and also improve the looks. -
Page 32: Three-Wide Hang Using Mb-890, Eb-890, Fb-890/2A And Fb-890/1A
user manual TA-890 Three-wide hang using MB-890, EB-890, FB-890/2A and FB-890/1A Consists of a FB-890/1A single bar and a FB-890/2A double bar, coupled with a left or right hand side FB-890MB motherbeam and one MBE-890 left or right side extender beam. The geometry of the system ensures that the optimum 25°... -
Page 33: Four-Wide Hang Using Mb-890 And Fb-890/2A
user manual TA-890 Four-wide hang using MB-890 and FB-890/2A Consists of two FB-890/2A double bars, coupled with an MB-890 motherbeam. The geometry of the system ensures that the optimum 25° horizontal angle is maintained between columns. The diagrams below illustrate both narrow and wide flybar settings. The flybar has two lifting points. -
Page 34: Integral Flying Hardware
user manual TA-890 Integral Flying Hardware Aspect cabinets are flown and connected in vertical columns by means of the integral flygear that is rebated into the cabinet sides. In this way the load of the cluster is taken entirely through the steelwork and not through the box. It essentially consists of a moveable drop link that engages into a receptacle in the cabinet below with a choice of inter-cabinet angles. -
Page 35: Figure 1 – Insert Cabinet Link Figure 2 – Release Swing Latch
user manual TA-890 1. Drop Link A retractable sliding mechanism that extends downwards to engage in the flygear of the cabinet below. It is backed with an anti-vibration spring. 2. Swing Latch A spring-loaded lever that secures the flying chain or the drop link of the cabinet above. Pull back to locate the drop link, release to engage. -
Page 36: Setting Vertical Angles - 'A' System
user manual TA-890 Setting Vertical Angles – ‘A’ System The position of the tilt index determines the distance between cabinets, and hence the vertical angle when the column is lifted. There are four possible discrete increments. The vertical inter-cabinet angles are as follows: Swing link position 1 (nearest front of cabinet) 4 (nearest rear of cabinet) -
Page 37: Attaching The Tilt Straps
Fig 1 – attach buckle Figure 2 – take up slack SAFETY NOTE: The Turbosound TA-890 system has been designed and constructed to a high standard of safety and tested to the most demanding of specifications with a safety factor of 13:1. However, anyone involved in flying ANY sound system, especially in a... -
Page 38: Turbobass Directivity
user manual TA-890 Turbobass Directivity The Aspect series TA-890L bass bin and the TSW-218 subwoofer are “Turbobass” devices, comprising horn-loaded drivers. Whilst this horn loading does aid in tuning the device and adding some sensitivity, the relationship between horn length and the bandwidth covered by the enclosures means that each source is effectively an omni-directional point source. - Page 39 user manual TA-890 Tall, thin bass stacks work best, preferably in blocks of six or eight bins high by two wide. When space permits use two or three of these blocks, placing the onstage block flush with and parallel to the stage, with a second and additional identical offstage blocks slightly separated from the first and angled outwards by 40°.
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Page 40: The Typical Left To Right Problem
user manual TA-890 The typical Left to Right problem One of the most common problems on large scale events results from the relationship between the left and right bass stacks. Due to the difference in distance and arrival time at any point between two point sources, in this case bass arrays, there will inevitably be some positive addition and some negative cancellation between sources. -
Page 41: Creating Directional Bass Arrays
user manual TA-890 Whilst several manufacturers have attempted to solve this using DSP based systems at present there is not a working solution in the market. In theory by splitting the LF energy into several bands and then spacing the left/right stacks differently depending on frequency this effect can be solved or at least minimised. -
Page 42: Fanned Bass
user manual TA-890 The result here is tight horizontal pattern control with two side lobes. This is a common application of subwoofers used in the field. There are however, several points to notice. Firstly, almost as much energy is produced behind the array as in front of it, which can create problems on stage or on multiple-staged outdoor events. -
Page 43: Bessel Array
user manual TA-890 Bessel Array In the above example five bass bins are again spaced ¼ of a wavelength apart. However in this example the outside two are reduced in gain by 3dB. The inside pair are out of phase while the middle unit is in phase. -
Page 44: End Firing Array
user manual TA-890 End firing array Under today’s market conditions it is often necessary to abide by strict environmental considerations. This is particularly pertinent at open air festival sites where there are multiple stages and external noise limits. Aspect TA-890H mid/high boxes are uniquely positioned in a line array dominated marketplace to deal with this problem by allowing the user to tailor the horizontal and vertical dispersion to the desired coverage area. -
Page 45: Summing Up
Always remember that large amounts of LF energy a short distance from the audience area may well cause hearing damage if deployed poorly. Turbosound accepts no responsibility for loss of hearing due to the misuse of our systems. -
Page 46: Ground Stacking
user manual TA-890 Ground stacking In certain situations, indoors or outdoors, it may not be possible to fly any part of the system. In this case, the same general rules apply as for flown arrays. High packs should be kept well above head-height and angled carefully for even coverage. -
Page 47: Lms Series Loudspeaker Management Systems
General features & facilities Unpacking As part of Turbosound's system of quality control, this product is carefully checked before packing, to ensure flawless appearance. After unpacking the unit, please inspect for any physical damage and retain the shipping carton and all relevant packing materials for use should the unit need returning. -
Page 48: Lms-D6 Front Panel Functions
user manual TA-890 LMS-D6 Front Panel Functions LMS-D6 TQ-440 DIGITAL LOUDSPEAKER MANAGEMENT SYSTEM LCD Display - Shows menu options, output information and adjustment parameters. Gain Keys - Two input and six-output ‘gain’ keys allow instant access to the gain screen for each channel. Pressing a second time selects the last function edited. Next Key - Moves the display forwards through the list of available parameters for the current input or output channel. -
Page 49: Lms-D6 Rear Panel Functions
THIS EQUIPMENT M UST BE EARTHED SHOCK HAZARD – DO NOT REMOVE COVER S RISQUE DE CHOC ELECTRIQUE - NE PAS OUVRIR PROTECTION AGAINST FIRE CUSTOM MADE FOR TURBOSOUND REPLACE ONLY WITH THE SAME TYPE T1A, 250V FUSE IN THE UK BY XTA ELECTRONICS Power Switch. -
Page 50: Voltage Setting
user manual TA-890 Voltage Setting The LMS-D6 is provided with an auto-seeking power supply, and therefore requires no external adjustment for correct operation with international AC line voltages ranging from 60 to 250 volts. Safety Earthing The green/yellow wire of mains cord must always be connected to the electrical installation's Safety Earth or Ground. -
Page 51: Audio Connections
Audio Connections The LMS-D6 audio inputs are RFI filtered and electronically balanced. The outputs are electronically balanced and fully floating. Overall, the unit is designed to operate at any signal levels ranging -10dBu up to +20dBu. The outputs will drive into loads of 600 Ohms or greater and both inputs and outputs are intended to be 'fuss free', regardless of an installation's complexity. -
Page 52: Lms-D24 And D26 Loudspeaker Management Systems
TA-890 LMS-D24 AND D26 LOUDSPEAKER MANAGEMENT SYSTEMS Features • Minimal signal path design, providing exceptional audio quality with carefully optimised processing and high performance converters for a full >111dB dynamic range, 96kHz sampling rate and minimal filtering. Audio-grade capacitors are used in the analogue signal path. -
Page 53: Front Panel Functions
Front Panel Functions Channel Select buttons Store and Recall buttons Input Signal Indicators Edit Parameter Select buttons Input Signal Indicators – A set of three pairs of LED’s indicate signal present, +4dBu and input clip for both channels. The signal present LED’s operate at approximately –40 dBu, giving a useful indication of even relatively low input signal levels. - Page 54 user manual TA-890 Edit Select Buttons – the currently selected edit parameter is displayed on the bottom left corner of the LCD. Pressing the edit select buttons moves through the available parameters for the current input or output. Text display – preset, channel, parameter and status information is shown on the 2x 24- character text display.
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Page 55: Rear Panel Functions
Rear Panel Functions Expansion Port Power Inlet Serial Comms Port Power Inlet – provides connection to a suitable mains electricity supply using the cable supplied. The controller has a switch mode power supply that is capable of operating with a nominal mains voltage of 80 to 240v, 50/60Hz without re-configuration. -
Page 56: Operating The Lms-D24 And D26
Selecting a Factory Preset There is a library of thirty Factory Presets to suit a range of Turbosound enclosures. Factory Presets contain some parameters that are fixed and hidden from view; the remainder of the DSP parameters are available for user manipulation. -
Page 57: Navigation And Viewing Parameters
Navigation and Viewing Parameters (Note: The LMS-D26 is shown in all the following screen shots; however the features and parameters apply equally to the LMS-D24) Many of the processing elements in each input and output path have features that may be controlled by the user, such as gain, frequency or limiter threshold. -
Page 58: Navigation
user manual TA-890 Navigation The DSP parameters are organised by channel. The currently selected channel is shown in the top left hand corner of the display. You can navigate between the channels by pressing the channel buttons. Pressing the channel buttons will scroll through the channels, utilities and back to the default screen. -
Page 59: Preset Recall
user manual TA-890 PRESETS The device contains a total of forty-five user and Factory Presets. The user cannot overwrite the basic mono, basic stereo or Factory Preset programs. Preset Recall To select an existing Preset, press the Recall Button so the indicator above it illuminates. Turn parameter knob A until the required Preset number is shown on the display. -
Page 60: Preset Store
user manual TA-890 Preset Store To store the current Preset in a user location, press the Preset Store Button so the indicator above it illuminates. Turn the first parameter knob until the required Preset location number is show on the display. A Preset name of up to 12 characters in length can be entered using parameter knobs B and C. -
Page 61: Dsp Processing Layout
DSP PROCESSING LAYOUT Input DSP block diagram Input Input Input A LED’s Gain Input B Output DSP block diagram Order Delay Routing Stereo / Mono Formats There is only one ‘standard’ layout of the processing blocks, but flexible routing and control linking allows this layout to be adapted to a wide variety of applications. -
Page 62: Dsp Processing
user manual TA-890 DSP PROCESSING Input Channels GAIN Knob A: Gain, adjustable in 0.2dB steps from –80 dB to +20dB DELAY Knob A: Delay, adjustable in variable steps from 0 to 400ms The delay parameter is adjustable in fine steps at low values; the adjustment becomes progressively coarser as the value increases. -
Page 63: High Pass Filter
HIGH PASS FILTER In A Freq 20.0Hz LR24 Knob A: Frequency, out (off), 10.0Hz to 25.6kHz in variable steps Knob B: high pass filter type System high pass filtering is provided for the input signal. This is the preferred location for high pass filtering as it affects all outputs and can therefore improve inter-band phase relationships. -
Page 64: Parametric Equalisation
user manual TA-890 Parametric Equalisation Eight sections of equalisation are provided, two shelving filters and six fully variable parametric sections. High and Low shelving filters Knob A: Frequency, 10.0Hz to 25.6kHz in variable steps Knob B: Slope, 6 to 12dB / octave in 1dB steps Knob C: Gain, +/-15dB in 0.2dB steps The frequency is specified as point where the filter deviates by 3dB from the gain value. -
Page 65: Output Channels
OUTPUT CHANNELS Gain and Polarity Out1 Gain 0.0dB Knob A: Gain, adjustable in 0.2dB steps from –80 dB to +20dB Knob B: Polarity, selectable, normal or reversed with reference to other outputs Delay Out1 Delay 1.50ms Knob A: Adjustable in variable steps from 0 to 80ms As for input delay, velocity sensitive Parameter Knobs provide finer adjustment at low levels and rapid selection of higher values. -
Page 66: High And Low Pass Filters
user manual TA-890 High and Low Pass Filters Knob A: Frequency, <<out, 10.0Hz to 25.6kHz, out>> Knob B: high pass filter type Filter type is selectable from Butterworth, Bessel, Linkwitz-Riley and Hardman. Filter slopes of up to 8th order or 48dB / octave are provided. Not all filter types are available in all slopes. For example 18dB / octave Linkwitz-Riley filters do not exist. -
Page 67: Parametric Equalisation
Parametric Equalisation Eight sections of equalisation are provided in a similar format to the input channel equalisation; two shelving filters and six parametric. Out1 Freq EQ>- 100Hz Knob A: Frequency, 10.0Hz to 25.6kHz in variable steps Knob B: Slope, 6 to 12dB / octave in 1dB steps Knob C: Gain, +/-15dB in 0.2dB steps The frequency is specified as point where the filter deviates by 3dB from the gain value. -
Page 68: Limiters
user manual TA-890 Q adjustable from 14.2 to 0.2 in variable steps Knob C, Gain, +/-15dB in 0.2dB steps Limiters Knob A: Threshold, -40dBu to 20dBu in 0.2dB steps A high performance, low distortion limiter is provided on each output. Threshold is user adjustable;... -
Page 69: Utilities
user manual TA-890 UTILITIES Utility functions Two utility functions are provided to adjust screen contrast and the display units used for parametric equalisation bandwidth. The device automatically adjusts for the variations in display contrast as the temperature of the LCD changes. The screen contrast utility control sets the base contrast of the screen and also allows optimization for a given viewing angle. -
Page 70: Rear Panel Functions
user manual TA-890 Rear Panel Functions Power Inlet Serial Comms Port Power Inlet – provides connection to a suitable mains electricity supply using the cable supplied. The controller has a switch mode power supply that is capable of operating with a nominal mains voltage of 80 to 240v, 50/60Hz without re-configuration. -
Page 71: Amp-890 Aspect System Amplification Rack
The rack contains a total of five lightweight Turbosound T series amplifiers developed and designed in England for Turbosound by MC Input and output connectors are mounted on a pair of 2U 19" panel at the rear of the rack. -
Page 72: Options
user manual TA-890 Options The rack is supplied fitted with five amplifiers as standard. The two top amplifiers are T-25 models, and power the high frequency and high-mid frequency sections respectively. Three mid-high cabinets will normally be powered from each channel, although it is possible to run up to four cabinets for some extreme applications. -
Page 73: Figure 1. Amplifier Rack Signal Wiring
Figure 1. Amplifier Rack Signal Wiring CHANNEL B 25 PIN CHANNEL A Output Connections The amplifier outputs are wired to two 19-way CEEP (Socapex compatible) output sockets, rated at 20 Amperes per contact. The Socapex output wiring has been arranged to preclude accidental connection of the mid-high output to anything other than the TA-890H, and of the low frequency output to anything other than the TA-890L, preventing any risk of drive-unit damage. -
Page 74: Figure 2. Mid-High Outputs
user manual TA-890 Figure 2. Mid-High Outputs C H2 C H1 NL4FC CHANNEL 1 HF C H2 C H1 NL4FC CHANNEL 1 HM C H2 C H1 NL4FC CHANNEL 1 LM Figure 3. Bass Outputs C H2 NL4FC CHANNEL 1 BASS A C H2 NL4F C CHANNEL 1 BASS B... -
Page 75: Break-Out Cables - Nl4 Bass
Break-out Cables – NL4 bass SOCAPEX PIN N O. SOCAPEX PIN NUMBERS 17,18,19 NOT USE D FANOUTS CAN BE SUPPLIED TO EITHER CONNECT 6 OR 8 CABINETS PIN NO. LOW+ LOW- LOW+ LOW- LOW+ LOW- LOW+ LOW- LOW+ LOW- LOW+ LOW- LOW+ LOW-... -
Page 76: Break-Out Cables - Nl8 Mid-High
user manual TA-890 Break-out cables – NL8 mid-high SO CAPEX PIN N O. LOW/MID- LOW/MID + HIGH/MID - HIGH/MID+ HIGH - HIGH+ LOW/MID- LOW/MID + HIGH/MID - HIGH/MID+ HIGH - HIGH+ Extension Cables 25-way extension cables are available to order in 3, 10, 30, 50 and 100 metre lengths (EX-890) for flying and/or remote positioning of amplifier racks. -
Page 77: Mains Connections
Mains Connections Incoming mains power may be connected by one of a variety of C Form connectors, depending on the power system specified when the rack was ordered. Typical supply configurations are as follows: 110 V star-wired (3 phase) 220/240 V (3 phase) The mains power wiring utilises Wago distribution blocks with spring-loaded screwless connectors. -
Page 78: T-25 And T-45 High Efficiency Audio Power Amplifiers
user manual TA-890 T-25 AND T-45 HIGH EFFICIENCY AUDIO POWER AMPLIFIERS General Features & Facilities The T-25 and T-45 are highly efficient, lightweight, rugged high power amplifiers, with many original features developed to meet the requirements of modern professional sound reinforcement, for both touring and fixed installations. -
Page 79: Front Panel Functions T-25
Front Panel Functions T-25 • Mains power rocker switch – applies AC mains power to the amplifier. • Mains power LED – illuminates when AC power is applied to the amplifier. • Gain – rotary control which allows the gain of the channel to be adjusted. •... -
Page 80: Front Panel Functions T-45
user manual TA-890 Front Panel Functions T-45 • Mains power rocker switch – applies AC mains power to the amplifier. • Mains power LED – illuminates when AC power is applied to the amplifier. • Gain – rotary control which allows the gain of the channel to be adjusted. •... -
Page 81: Mechanical Installation
user manual TA-890 Mechanical Installation When supplied as part of the AMP-890.2 system rack, the amplifiers are pre-installed. If an amplifier is removed from the rack for any reason, it is important to re-install it correctly. The amplifiers must be supported at the front and rear, as originally supplied. Failure to support it adequately may eventually result in vibration-induced metal fatigue of the rack mounting ears and such damage will not be covered by the warranty. -
Page 82: Voltage Setting
The shield connection to pin 1 at each amplifier input must be maintained under all circumstances, as TURBOSOUND will not be responsible for consequential damage arising to loudspeakers, etc., should this connection not be made. The amplifiers are designed to operate with fully balanced equipment. Ground loops or loss of performance may be experienced if connected to unbalanced sources. -
Page 83: Polarity
Pin 1 Screen - connect to chassis of the unbalanced equipment, or left disconnected at the unbalanced end Pin 2 signal hot Pin 3 Signal cold Polarity In accordance with international standards, T series amplifiers are supplied with Pin 2 hot (+), so a positive (+V) input gives a positive (+V) output from the positive (+) output terminals. -
Page 84: Attenuation & Gain Setting
user manual TA-890 The gain should be set to match the signal from the source, e.g. mixer, controller, or equaliser. Attenuation & Gain Setting The front panel gain controls allow precise level settings, and may be used to adjust the relative levels of sections of a large system, for example downfills or side seating cover in an arena. -
Page 85: Long Speaker Lines
Long Speaker Lines Whenever loudspeakers are connected to power amplifiers by long cables (above 20'/6m), there is invariably an increased risk of high frequency instability. It is aggravated by the combination of RF pickup in unshielded cables acting as aerials, and multiple complex reactances in the cable and loudspeakers. -
Page 86: Maintenance
Turbosound loudspeakers. This section covers the removal and replacement of the high frequency drivers and the high- mid driver;... -
Page 87: To Rotate The Horn Moulding From 'A' Mode To 'B' Mode
user manual TA-890 The grille is a fairly tight fit between the inner edge of the cabinet and the outer surface of the horn assembly, and can only be removed if it remains parallel with the front edge of the cabinet;... -
Page 88: To Rotate The Horn Moulding From 'B' Mode To 'A' Mode
user manual TA-890 To rotate the horn moulding from ‘B’ mode to ‘A’ mode Lift the horn assembly part-way out of the cabinet as above and rotate it back so that the high frequency horn is now orientated towards the long edge of the cabinet. Lower it carefully back into the cabinet ensuring that the connecting cables do not snag. -
Page 89: Removal Of The High-Mid Frequency Driver
user manual TA-890 The high frequency diaphragm can now be removed and replaced if necessary. Replacement is a straightforward reversal of the removal procedure, but be careful when replacing the magnet assemblies - neodymium magnets are very strong and a steady hand (preferably two) is required when aligning the magnet with the diaphragm. -
Page 90: Removal Of The Low-Mid Frequency Drive Units
user manual TA-890 Lower the horn assembly into the cabinet and replace the grille, ensuring that the nylon cup washers are replaced before tightening the fixing screws. Removal of the low-mid frequency drive units These can be accessed by removing the curved doors on the rear of the cabinet. To ensure an airtight seal the access doors are fitted with a neoprene gasket. -
Page 91: Paintwork
Should serious damage happen to an enclosure (for example if it is dropped) it may be necessary to fill and respray the enclosure. This should be done by an experienced paint shop. if you require any help with this please contact Turbosound or your local dealer for service advice. - Page 92 There are three simple ways to help maintain the longevity of your Turbosound Aspect 890 series enclosures: The majority of paintwork damage is mostly caused during transportation and flying of the systems.
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Page 93: Technical Specifications
TECHNICAL SPECIFICATIONS TA-890H Dimensions 795 x 477 x 574mm 31.3” x 18.8” x 22.6” Net weight 76 kgs 167 lbs Power handling LMF: 500 watts rms HMF: 200 watts rms HF: 100 watts rms Sensitivity LMF: 107dB (1w @ 1m) HMF: 114dB HF: 114dB Frequency range... -
Page 94: Warranty
This warranty does not affect any statutory rights of the purchaser. Should any fault develop with a component of your Turbosound system the faulty unit should be sent, in its original packaging, to the supplier or your local authorised Turbosound dealer with the shipping prepaid. - Page 95 TA-890 Turbosound Limited Star Road Partridge Green West Sussex RH13 8RY United Kingdom TA-890 user manual Page 95...
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