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Turbosound TA-880 user manual Attenuation & Gain Setting, Damping Factor, Output Connections

Models: TA-880

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Attenuation & Gain Setting

user manual

TA-880

Setting higher gain does not change the maximum available power but changes the level of signal input to achieve maximum power. In any case, provided that the input signal is less than 20dBu/7.7V, the built in limiter circuit will prevent distortion within the amplifier.

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.

The front panel gain controls are also useful when initially checking a system after it has been connected up.

Note that in BRIDGED mode only the Channel A control is active.

Output Connections

A Speakon NL4 connector is provided on each channel.

Damping Factor

The T series amplifier outputs provide a high damping factor, typically 400 times at low audio frequencies. This damping helps the amplifier to control the loudspeaker drive units, provided that the resistance of the intervening cables and connectors is very low. The sonic benefits of high damping factor are most pronounced at bass and low-midrange frequencies (i.e. 10 to 600Hz) providing a subjectively tighter sound as a result of the improved reproduction of transients.

Amplifier damping factor is degraded by high resistance in the loudspeaker circuits; i.e. thin conductors, long output cable runs and tarnished, corroded or loose connections.

Damping factor is maximised by installing cables containing conductors of large cross- sectional area, and by specifying connectors with heavy-duty contacts and waterproof covers. The cable sets supplied with Aspect systems are manufactured to a high specification with these considerations in mind.

TA-880 user manual Page 81

Image 81

Turbosound TA-880 user manual Attenuation & Gain Setting, Damping Factor, Output Connections

Contents

West Sussex RH13 8RY England Star Road, Partridge GreenTel +44 01403 711447 Fax +44 ASPECT TA-880SYSTEMTA-880 TA-880 TA-880 FeaturesTA-880 General Features & FacilitiesTA-880 EC DECLARATION OF CONFORMITYTA-880 INTRODUCTION Turbosound Aspect System ConceptsTA-880 The Aspect Polyhorn ConceptTA-880 Aspect TA-880Turnkey System ConceptLMS-D26/D6Loudspeaker Management Systems The Loudspeaker Management System LMS ConceptAmplifier Racks TA-880Digital Controllers Power AmplifiersAspect Loudspeaker Components TA-880TSW-218Subwoofer TA-880LLow Frequency EnclosureTA-880HMid/High Enclosure TA-880TA-880HM High-MidEnclosure TA-880LM Low-MidEnclosureTA-880 TA-880 TransportationTA-880 Aspect trapezoidal Flying SystemTA-880 FLYING AND STACKING OverviewTA-880 GIGMATE ACOUSTIC SIMULATIONMapping Properties System SetupAudience Area RiggingTA-880 Designing a systemNow select the number of cabinets deep that you wish to hang or stack in the “Box Count” dropdown. Trim height, or PA wing height can now be set in the “Position” field TA-880TA-880 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 op each area, Selecting the “Combined Level View” tab will show the SPL across all areas simultaneously TA-880TA-880 Safety Notes on RiggingSample Certificate of Load Test TA-880Horizontal Coverage FLYING HARDWARERequired Horizontal Coverage Number of ColumsWide and Narrow Flybar settings Vertical CoverageTA-880 BOTTOM VIEW TOPVIEWTwo-widetrapezoidal flybar FB-880/2W TA-880TA-880 Three-widetrapezoidal flybar FB-880/3WTOPVIEW BOTTOM VIEWFC-880 CHOKED CHAIN ASSEMBLY FC-880S Flying ChainsSHORT CHAIN ASSEMBLY TA-880SW-880LMFLYING SWORD SW-880HFLYING SWORD SW-880HMFLYING SWORD BB AAFlying Swords TA-880Tilting Strap TA-8800.59m TA-880 TA-880 TA-880 3.Position the second cabinet directly underneath the first. Fit a BS-780biscuit into the top kelping braket of the lower cabinet to keep the backs of the boxes and act as the hinge. Lower the top cabinet and feed the swords into the sword boxes. Make sure that the biscuit engages into the bottom kelping bracket slot of the upper cabinet. The lower end of the swords will be visible through the handle boxes of the lower cabinet TA-880Inter-cabinetangle Sword hole positionTA-880 A B BFlying a cluster of TA-880trapezoidal cabinets Single horizontal rowTA-880 4 x FC-880choked chain assembly 2 wide x 2 deep TA-880Harray4 x SL-880safety linch-pin 2 x TS-890tilt strap TA-8806 x FC-880choked chain assembly 3 wide x 3 deep TA-880Harray30x SL-880safety linch-pin 3x TS-890tilt strap TA-880TA-880 Tight-packedFlying AssembliesTA-880 Bass Enclosure arraying Aiming - directivity of the stackTA-880 TA-880 Ground stackingLMS SERIES LOUDSPEAKER MANAGEMENT SYSTEMS Mechanical InstallationIntroduction UnpackingTA-880 LMS-D6LOUDSPEAKER MANAGEMENT SYSTEMMains Power LMS-D6Rear Panel FunctionsTA-880 Safety Earthing Voltage SettingsAC Power Fusing Powering UpTime correction for loudspeaker driver placement Input and Output Connector WiringAudio Connections TA-880Features LMS-D24AND D26 LOUDSPEAKER MANAGEMENT SYSTEMSTA-880 Input Signal Indicators Front Panel FunctionsTA-880 Channel Select buttonsfor the current input or output TA-880Expansion PortSecure Mode Switch Power Inlet Rear Panel FunctionsSerial Comms Port Audio Output Connectors Audio Input ConnectorsOperating the LMS-D24and D26 Starting up Selecting a Factory PresetCreating a Crossover TA-880Navigation and Viewing Parameters LMS-D26a b c TA-880Navigation LMS-D26TA-880 Out1 Freq Width Gain EQ1 100Hz 1.4Q 0.0dBPresets Preset NamePreset Recall RecallPreset Preset StoreNAME PRESET TA-880Output DSP block diagram DSP Processing Layout Input DSP block diagramStereo / Mono Formats TA-880In A Gain 0.0dB In A Delay 1.50msDSP processing Input Channels TA-880Shape In A FreqHPF 20.0Hz LR24 TA-880Gain SlopeEQ1 100Hz 12dBDelay Out1 Delay 1.50msOut1 Gain Pol 0.0dB Rev Output Channels Gain and PolarityHigh and Low Pass Filters Out1 Freq Shape LPF 2.50k LR24TA-880 LMS-D26Out1 Freq Width Gain EQ1 100Hz 1.4Q 0.0dB Out1 Freq Slope Gain EQ - 100Hz 12dB 0.0dBTA-880 LMS-D26Out1 Source Inp A Out1 Thresh LIM 4.0dBLimiters RoutingUtilities Utility functions Util Screen ParaEQ 100% BW=QTA-880 LMS-D26Serial Comms Port Audio Output Connectors Power InletSwitch ConnectorsAMP-890Aspect System Amplification Rack Racking, Cables and ConnectionsTA-880 Options Input ConnectionsTA-880 Figure 1. Amplifier Rack Signal Wiring Output ConnectionsTA-880 Figure 3. Bass Outputs Figure 2. Mid-HighOutputsTA-880 CHANNEL 1 HFBreak-outCables - NL4 bass TA-880SOCAPEX PIN NUMBERS 17,18,19 NOT USED Extension Cables Break-outcables - NL8 mid-highTA-880 SOCAPEX PIN NUMBERS17,18,19 NOT USEDTA-880 Mains ConnectionsTA-880 General Features & FacilitiesFront Panel Functions T-25 TA-880Ch. A TA-880 Front Panel Functions T-45Mains Power Mechanical InstallationPowering Up Safety EarthingVoltage Range Voltage SettingAudio Connections & Controls TA-880Polarity Gain and Sensitivity SettingsInput Impedance TA-880Damping Factor Attenuation & Gain SettingTA-880 Output ConnectionsLong Speaker Lines The Cooling SystemTA-880 TA-880 APPENDIX A TECHNICAL SPECIFICATIONSTA-880H TA-880HMTA-880 TA-880LTSW-218 TA-880 APPENDIX B WARRANTYTurbosound Limited Star Road Partridge Green West Sussex RH13 8RY United KingdomTA-880