Removal of the low-mid frequency drive units | Turbosound LMS-D6

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. These should be regularly checked to ensure the seal is tight as the gasket can “settle” over time. Once the gasket has settled tightness should be regularly checked as during regular maintenance by ensuring the seal is maintained.

General Maintenance

Cabinets should be inspected regularly as part of a routine maintenance procedure, paying particular attention to the flying hardware and fixings. Aspect enclosures should be inspected after every tour, or during the festival season after all outdoor gigs. Simple and regular application of paint with a roller will ensure the enclosures have the longest lifespan possible without permanent damage to the enclosures.

TA-890 enclosures are fitted with stainless steel fixings. However note that even stainless steel is liable to corrosion and particular care should be taken not to burr screw heads thereby removing surface coating which might accelerate the corrosion process. A regular prgramme of inspection, and where necessary replacement, will ensure that cabinets have a long and safe working life.

Flying hardware

All flying hardware is fully tested before assembly and covered by load test certificates (a sample is reproduced earlier in this manual). Individual test certificates are available upon request.

Regular inspection by a qualified and competent lifting engineer is necessary to ensure the longevity and safety of the system.

TA-890 user manual

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Turbosound LMS-D6, LMS-D24, LMS-D26 user manual Removal of the low-mid frequency drive units, General Maintenance

Contents

Aspect TA-890 System TA-890 TA-890 TA-890 Amplifier Rack Signal Wiring Output Connections EC Declaration of Conformity Products Introduction Turbosound Aspect System ConceptsTurbosound Polyhorn TA-890 Aspect TA-890 Turnkey System Concept LMS-D24, LMS-D26 and LMS-D6 Loudspeaker Management Systems Power AmplifiersLoudspeaker Management System LMS Concept Amplifier Racks Digital Controllers Aspect Loudspeaker ComponentsTA-890L Low Frequency Enclosure TSW-218 Subwoofer TA-890H Mid-high Enclosure TA-890 Transportation Aspect Flying Systems Flying and Stacking Overview Setting up a Venue Overview Gigmate Acoustic Simulation Running Turbosound GigMate / Ease Focus for the first time System Setup Designing a system TA-890 TA-890 Changing the system Theatre-style venue 3-wide flown cluster @ 1kHz Safety Notes on Rigging Sample Certificate of Load Test Wide and Narrow Flybar Settings Flying Hardware Single A-System Flybar FB-890/1A TOP View Bottom View Figue 3. Triple ‘A’ System Flybar FB-890A/3W FC-890 Flying Chains TS-890 Tilting Straps TA-890 Four-wide hang using MB-890 and FB-890/2A Integral Flying Hardware ‘A’ System Flygear Drop Link Connecting Flying Chains to the CabinetConnecting Cabinets ‘A’ System Swing Latch Setting Vertical Angles ‘A’ System Attaching the Tilt Straps Attach buckle Turbobass Directivity Bass Enclosure arrayingAiming directivity of the stack TA-890 Typical Left to Right problem ABC DEF Creating Directional Bass arrays Bass in a line Fanned bass Bessel Array General observations of long lines of bass End firing array Summing up Ground stacking LMS Series Loudspeaker Management Systems General features & facilities UnpackingMechanical Installation Introduction LMS-D6 Front Panel Functions Mains Power LMS-D6 Rear Panel Functions AC Power Fusing Voltage SettingSafety Earthing Powering Up Input and Output Connector Wiring Time correction for loudspeaker driver placementAudio Connections Features LMS-D24 and D26 Loudspeaker Management Systems Front Panel Functions TA-890 Rear Panel Functions Starting up Selecting a Factory PresetOperating the LMS-D24 and D26 Creating a Crossover A Freq Width Gain EQ1 100Hz 1.4Q 0.0dB Navigation and Viewing Parameters Out1 Freq Width Gain EQ1 100Hz 1.4Q 0.0dB Navigation Preset Recall Presets Preset Name Store My System Preset Store DSP Processing Layout Input DSP block diagramOutput DSP block diagram Stereo / Mono Formats DSP Processing Input Channels A Freq Shape HPF 20.0Hz LR24 Parametric Equalisation High and Low shelving filtersParametric filters Delay Output ChannelsGain and Polarity Out1 Freq Shape LPF 2.50k LR24 High and Low Pass Filters Out1 Freq Slope Gain EQ- 100Hz 12dB 0.0dB Limiters Routing Utilities Utility functions Audio Input Connectors AMP-890 Aspect System Amplification Rack Racking, Cables and Connections Options Input Connections Amplifier Rack Signal Wiring Output Connections Mid-High Outputs Break-out Cables NL4 bass Break-out cables NL8 mid-high Extension Cables Mains Connections T-45 High Efficiency Audio Power Amplifiers General Features & Facilities Front Panel Functions T-25 Front Panel Functions T-45 Mechanical Installation Voltage Range Audio Connections & Controls Gain and Sensitivity Settings PolarityInput Impedance Attenuation & Gain Setting Damping Factor Long Speaker Lines Cooling System Maintenance To rotate the horn moulding from ‘A’ mode to ‘B’ mode To rotate the horn moulding from ‘B’ mode to ‘A’ mode Removal of the high frequency driver Removal of the high-mid frequency driver General Maintenance Removal of the low-mid frequency drive units Paintwork TA-890 Technical Specifications Warranty Serial Numbers TA-890