Turbosound LMS-D6, LMS-D24, LMS-D26 user manual Audio Connections, Input and Output Connector Wiring

Page 51

user manual

TA-890

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.

The connector wiring is as follows:

INPUT		OUTPUT

PIN 1	N/C	PIN 1	N/C

PIN 2	HOT (+)	PIN 2	HOT (+)

PIN 3	COLD (-)	PIN 3	COLD (-)

Input and Output Connector Wiring

Balanced Wiring

Whether a system is wired to a 'pin 3 hot' or a 'pin 2 hot' convention will not matter as long as the wiring of hot & cold phases to both the input and output XLR connectors is the same.

At the LMS-D6 input, the convention is 'screen goes forward with the signal'. Input cable screening therefore needs to be connected at and derived from the signal source end, as pin 1 on the input XLR is not connected to the LMS-D6 chassis nor signal ground.

Time correction for loudspeaker driver placement

When a loudspeaker sound system is constructed which utilises different loudspeaker drivers for separate frequency bands, it is inevitable that the sound sources are non-coincident. The effect of this is that phase and time differences occur, producing a substantial cancellation of the signal around the crossover region. There is also a general lack of transient clarity or smearing of the sound, resulting from an inaccurate combining of the wavefront. The LMS- D6 provides and maintains the optimum relative signal delay between drivers.

TA-890 user manual Page 51

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Contents Aspect TA-890 System TA-890 TA-890 TA-890 Amplifier Rack Signal Wiring Output Connections Products EC Declaration of ConformityIntroduction Turbosound Aspect System ConceptsTurbosound Polyhorn TA-890 Aspect TA-890 Turnkey System Concept Amplifier Racks Power AmplifiersLoudspeaker Management System LMS Concept LMS-D24, LMS-D26 and LMS-D6 Loudspeaker Management SystemsDigital Controllers Aspect Loudspeaker ComponentsTA-890L Low Frequency Enclosure TA-890H Mid-high Enclosure TSW-218 SubwooferTA-890 Transportation Aspect Flying Systems Overview Flying and StackingGigmate Acoustic Simulation Setting up a Venue OverviewRunning 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 Flying Hardware Wide and Narrow Flybar SettingsSingle A-System Flybar FB-890/1A TOP View Bottom View Figue 3. Triple ‘A’ System Flybar FB-890A/3W TS-890 Tilting Straps FC-890 Flying ChainsTA-890 Four-wide hang using MB-890 and FB-890/2A ‘A’ System Flygear Integral Flying HardwareSwing Latch Connecting Flying Chains to the CabinetConnecting Cabinets ‘A’ System Drop LinkSetting Vertical Angles ‘A’ System Attach buckle Attaching the Tilt StrapsTurbobass Directivity Bass Enclosure arrayingAiming directivity of the stack TA-890 ABC DEF Typical Left to Right problemBass in a line Creating Directional Bass arraysFanned bass General observations of long lines of bass Bessel ArrayEnd firing array Summing up Ground stacking Introduction General features & facilities UnpackingMechanical Installation LMS Series Loudspeaker Management SystemsLMS-D6 Front Panel Functions LMS-D6 Rear Panel Functions Mains PowerPowering Up Voltage SettingSafety Earthing AC Power FusingInput and Output Connector Wiring Time correction for loudspeaker driver placementAudio Connections LMS-D24 and D26 Loudspeaker Management Systems FeaturesFront Panel Functions TA-890 Rear Panel Functions Creating a Crossover Selecting a Factory PresetOperating the LMS-D24 and D26 Starting upNavigation and Viewing Parameters A Freq Width Gain EQ1 100Hz 1.4Q 0.0dBNavigation Out1 Freq Width Gain EQ1 100Hz 1.4Q 0.0dBPresets Preset RecallPreset Store Preset Name Store My SystemStereo / Mono Formats Input DSP block diagramOutput DSP block diagram DSP Processing LayoutInput Channels DSP ProcessingA Freq Shape HPF 20.0Hz LR24 Parametric Equalisation High and Low shelving filtersParametric filters Delay Output ChannelsGain and Polarity High and Low Pass Filters Out1 Freq Shape LPF 2.50k LR24Out1 Freq Slope Gain EQ- 100Hz 12dB 0.0dB Routing LimitersUtility functions UtilitiesAudio Input Connectors Racking, Cables and Connections AMP-890 Aspect System Amplification RackInput Connections OptionsOutput Connections Amplifier Rack Signal WiringMid-High Outputs Break-out Cables NL4 bass Extension Cables Break-out cables NL8 mid-highMains Connections General Features & Facilities T-45 High Efficiency Audio Power AmplifiersFront Panel Functions T-25 Front Panel Functions T-45 Mechanical Installation Audio Connections & Controls Voltage RangeGain and Sensitivity Settings PolarityInput Impedance Damping Factor Attenuation & Gain SettingCooling System Long Speaker LinesMaintenance To rotate the horn moulding from ‘A’ mode to ‘B’ mode Removal of the high frequency driver To rotate the horn moulding from ‘B’ mode to ‘A’ modeRemoval of the high-mid frequency driver Removal of the low-mid frequency drive units General MaintenancePaintwork TA-890 Technical Specifications Serial Numbers WarrantyTA-890