Turbosound ASPECT TA-880 SYSTEM User Manual Download Page 11 | Manualshive

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user manual

TA-880

TA-880 user manual

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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:

•

MC2 E series

•

Lab Gruppen FP series

•

Crest Pro series

•

QSC Powerlight II series

Digital Controllers

In addition to the Turbosound LMS-D6 and LMS-D26 loudspeaker management systems, the
following digital crossovers have been tested and are recommended for use with Aspect
systems:

•

BSS FDS366

•

XTA 224. 226 and 428

Aspect Loudspeaker Components

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.

Neodymium magnets are used throughout all drive units. This results in higher efficiency,
less power compression and reduced overall weight.

Low-mid frequency drivers are designed to be rear-facing in the enclosure, enabling the
heatsink / phase plug to be placed in the air flow to aid cooling.

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Summary of Contents for ASPECT TA-880 SYSTEM

Page 1: ...PECT TA 880 SYSTEM USER MANUAL Turbosound Ltd Star Road Partridge Green West Sussex RH13 8RY England Tel 44 0 1403 711447 Fax 44 0 1403 710155 web www turbosound com Issue 1 5 Turbosound Ltd January 2006 ...

Page 2: ...plifiers 11 Digital Controllers 11 Aspect Loudspeaker Components 11 TA 880L Low Frequency Enclosure 12 TSW 218 Subwoofer 12 TA 880H Mid High Enclosure 12 TA 880HM High Mid Enclosure 13 TA 880LM Low Mid Enclosure 13 Transportation 14 Aspect trapezoidal Flying System 15 Flying and Stacking 16 Overview 16 GigMate Acoustic Simulation 17 Running Turbosound GigMate EASE Focus for the first time 17 Syste...

Page 3: ...ter of TA 880 trapezoidal cabinets 37 Single horizontal row 37 2 wide x 2 deep TA 880H array 38 3 wide x 3 deep TA 880H array 39 Tight packed Flying Assemblies 40 Bass Enclosure arraying 42 Aiming directivity of the stack 42 Ground stacking 43 LMS series Loudspeaker Management Systems 44 Introduction 44 Unpacking 44 Mechanical Installation 44 LMS D6 Loudspeaker Management System 45 LMS D6 Rear Pan...

Page 4: ...etric Equalisation 61 High and Low shelving filters 61 Parametric filters 61 Output Channels 62 Gain and Polarity 62 Delay 62 High and Low Pass Filters 63 Parametric Equalisation 64 Limiters 65 Routing 65 Utilities 66 Utility functions 66 Rear Panel Functions 67 AMP 890 Aspect System Amplification Rack 68 Racking Cables and Connections 68 Options 69 Input Connections 69 Figure 1 Amplifier Rack Sig...

Page 5: ...on 78 Mains Power 78 Powering Up 78 Safety Earthing 78 Voltage Setting 79 Voltage Range 79 Audio Connections Controls 79 Polarity 80 Input Impedance 80 Gain and Sensitivity Settings 80 Attenuation Gain Setting 81 Output Connections 81 Damping Factor 81 Long Speaker Lines 82 The Cooling System 82 Appendix A Technical Specifications 83 Appendix B Warranty 85 ...

Page 6: ...r T 45 Power Amplifier LMS D6 Controller LMS D26 Controller LMS D24 Controller Standards Safety EN60065 2003 Relevant Specifications used as basis for tests EN66103 1 1996 EN55103 2 1996 Category Professional apparatus for use in Commercial Light Industrial and controlled EMC environments CE Marking All products are marked in accordance with the relevant statutory requirements ...

Page 7: ...employed in both the high frequency and high mid frequency bands exhibit a sharp cut off at the edges of the dispersion pattern making it possible to produce seamless coverage of a venue with minimal destructive interference between elements however many individual enclosures are deployed in the cluster The Polyhorn devices generate phase coherent and smoothly curved wavefronts which match the arr...

Page 8: ... does not suffer from edge diffraction effects which have a tendency to confuse the directionality of the sound source Each cabinet in an array of Aspect loudspeakers contribute to the generation of a single cohesive and more or less continuous wavefront without noticeable comb filtering effects In addition the Polyhorn design offers the possibility of locating the acoustic centre well behind the ...

Page 9: ...ay therefore be freely combined without difficulty This provides owners with a considerable competitive advantage in servicing the requirements of international touring productions and in co operating with other Aspect suppliers within the worldwide network The system controller functions as an electronic loudspeaker management system comprising a 24dB per octave crossover with factory preset limi...

Page 10: ...ontribute to high reliability in the adverse circumstances often encountered under arduous touring conditions LMS D26 D6 Loudspeaker Management Systems Use of the LMS D26 or LMS D6 loudspeaker management system ensures accurate time alignment of the system drive units and also provides a facility for users to select additional delay either to compensate for physical displacement of ground stacked ...

Page 11: ...ng digital crossovers have been tested and are recommended for use with Aspect systems BSS FDS366 XTA 224 226 and 428 Aspect Loudspeaker Components 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...

Page 12: ...t mutual coupling between adjeacent enclosures resulting in sensitivity gains of up to 110dB with eight units coupled TA 880H Mid High Enclosure The TA 880H enclosure covers frequencies above 100Hz and contains a total of five drive units A pair of 10 neodymium low mid frequency drivers loaded with TurboMid devices covers the frequency range from 100Hz to 400Hz The low mid drivers are rear facing ...

Page 13: ...le flybars TA 880HM High Mid Enclosure The TA 880HM enclosure contains high frequency and high mid frequency elements only and is designed is to be used as a downfill or in fill enclosure either flown or ground stacked It covers the frequency range from 405Hz to 20kHz and provides a coverage pattern of 25 H x 15 V The TA 880 external flying system of removeable swords allows all types of TA 880 en...

Page 14: ...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 unecessary floor space TA 880L bass cabinets are fitted with heavy duty wheels Optional heavy duty transit covers are available for TA 880H cabinets These simply slide over the box and fasten underneath the cabinet with velcro straps ...

Page 15: ... external rigging system has been developed The flying systems are inherently safe flexible and simple to use The rigging design allows the creation of clusters and arrays that can be assembled quickly and with a minimum number of crew and with full control of the vertical angles between enclosures and their vertical inclination to suit a wide variety of requirements ...

Page 16: ...nt source image and this results in the ability to tailor both the overall coverage and the SPL at a given distance The concept of arraying a point source loudspeaker system is to create part of the surface of a sphere A small part of a large sphere will form a high directivity long throw system with a high SPL at a distance whereas a large part of a small sphere will be of lower directivity produ...

Page 17: ...n package a version of the generic EASE Focus program that is based on current EASE 4 1 data GigMate provides an accurate elevation representation of sound pressure level and coverage of a room given the dimensions of the audience areas and location of available rigging points in the venue The database allows for flown clusters of TA 890 touring or TA 880 trapezoidal enclosures or for ground stack...

Page 18: ...es This is the main window which will display the system as configured in the System Setup window along with the audience areas and mappings Audience Area Beneath the main Mapping Properties window this graphically displays the SPL on each audience area or across a combination of audience areas Rigging The far right window shows the detail of the system configuration and is especially useful in la...

Page 19: ...ethods of defining an audience area In either case you must define the X1 Y1 coordinate of the start of the area you can then either enter the X2 Y2 points or its length and angle As you create audience areas they are show graphically in the main window The next step is to design the loudspeaker array using the System Setup window Select the System Setup tab in the bottom left of the screen and be...

Page 20: ...he 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 The angle between cabinets can now be set in the Angle list Each cabinet has an aiming line that can be used to determine the centre of each cabinet s dispersion Adjust the trim height top angle and intercabinet angle to achieve optimum coverage ...

Page 21: ...tablished 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 3 octave mapping gives realistic and useful data ...

Page 22: ...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 Now that the system is mapped the intercabinet angles or row attenuation may be trimmed to provide the smoothest coverage Typically the bottom row of the system will require some attenuation and should be on it s own Amp way to achieve t...

Page 23: ... the expected angle of inclination so as to avoid ending up with too much of the strap left on the ratchet This is important because the ratchet can only take three complete turns before it releases itself WARNING If a tilt strap is released suddenly the column of enclosures may tend to swing violently forwards and care must be taken to avoid danger to persons in the vicinity It is essential to ch...

Page 24: ...user manual TA 880 TA 880 user manual Page 24 Sample Certificate of Load Test ...

Page 25: ...k and therefore have no flying requirements Horizontal Coverage Because the Polyhorn s design dramatically reduces the acoustic energy outside of the specified 25 horizontal dispersion pattern it is recommended that Aspect TA 880 enclosures always be arrayed in a smooth even curve resulting in an array angle of 25 between boxes Based on this assumption it is an easy job to assess how many columns ...

Page 26: ...ying to achieve and the distance or projection required Wide and Narrow Flybar settings The flybars are equipped with two choices of cabinet suspension tabs and tilt strap points for each column of loudspeakers These are provided in order to accommodate different numbers of cabinets in a vertical column The narrow setting is sufficient when flying columns up to two deep However when flying three o...

Page 27: ...he FB 880 2W two wide flybar is a fixed angle double bar designed to fly two vertical columns of cabinets up to four deep per column It provides alternative cabinet suspension tabs and tilt strap points for narrow or wide configurations when flying more than two boxes deep the wide configuration allows for the additional amount of kelp required The FB 880 2W has a net weight of 18 kgs ...

Page 28: ...ide flybar is a fixed angle triple bar designed to fly three vertical columns of cabinets up to a total of four deep per column It provides alternative cabinet suspension tabs and tilt strap points for regular up to two cabinets deep or wide configurations when flying more than two boxes deep the wide configuration allows for the additional amount of kelp required lifting points and safety points ...

Page 29: ...ngle hole for attachment inside the cabinet s sword box using a safety linch pin Use the short chain to gain more height on the system and also improve the looks of the cluster The longer FC 880 flying chain allows for forward displacement of the speaker cluster and easier ratcheting when flying three or four cabinets deep with a lot of tilt It is adjustable and can be shorted as required using th...

Page 30: ...losures SW 880HM swords are used to fly TA 880HM high mid enclosures SW 880LM swords are used to fly TA 880LM low mid enclosures SW 880H FLYING SWORD A B B A SW 880HM FLYING SWORD SW 880LM FLYING SWORD Flying swords are fabricated from steel and are provided with two locating holes at each end and these allow for a range of vertical inter cabinet angles ...

Page 31: ...he other part of the strap with the ratchet is hooked into the tilt strap point on the rear of the bottom enclosure The free end is then threaded through the ratchet and the strap tightened to achieve the desired tilt The tilt strap is designed to ratchet in both directions so that the amount of tilt on a column may be increased or reduced incrementally The TS 890 tilt strap has a net weight of 2 ...

Page 32: ...0 shoulder eyebolts on the top using a third eyebolt on the rear of the cabinet to tilt the cabinet 1 Remove the two countersunk M10 screws located just behind the sword slots in the top of the cabinet 2 Replace these with M10 shoulder eyebolts with a minimum thread length of 20mm 3 4 3 Angle the cabinet as necessary using the third eyebolt position on the rear of the cabinet ...

Page 33: ...e dagger is shown for clarity 1 Insert a dagger through the slot machined in the top of the cabinet and into the handle box as illustrated in the cutaway drawing above The tip of the dagger located in the sword box will be visible through the handle hole Repeat with the second flying chain and dagger 2 Insert a SL 880 safety linch pin through the small hole in the dagger from the outside of the bo...

Page 34: ... metalwork and not through the woodwork of the cabinet Note that there are two holes in each end of the flying sword selection of these determines the vertical angle between cabinets and is explained in the table and diagrams below 1 Lift the first cabinet high enough to allow access to the bottom of the cabinet Insert SW 880H flying swords into the cabinet from the bottom passing them up through ...

Page 35: ...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 4 Secure them with safety linch pins on both sides of the cabinet Repeat this procedure with any further cabinets required to complete the co...

Page 36: ...holes ast each end This allows for a choice of four incremental vertical angles depending on which hole the linch pin is located in and which will determine the combined vertical coverage of the column 11 B A 8 A A 15 B B Sword hole position Inter cabinet angle A A 8º A B 11º B B 15º ...

Page 37: ...omplex installations or touring applications multiple flybars can be used in a modular fashion Single horizontal row Parts required 1 x FB 880 2W flybar 4 x FC 880 choked chain assembly 4 x SL 880 safety linch pin 2 x TS 890 tilt strap 1 Attach flying chains to the flybar using the narrow setting 2 Insert daggers through the slots in the top of the cabinets and secure with safety linch pins 3 Atta...

Page 38: ...al TA 880 TA 880 user manual Page 38 2 wide x 2 deep TA 880H array Parts required 1 x FB 880 2W flybar 4 x FC 880 choked chain assembly 4 x SW 880H flying sword 4 x SL 880 safety linch pin 2 x TS 890 tilt strap ...

Page 39: ...nual TA 880 TA 880 user manual Page 39 3 wide x 3 deep TA 880H array Part required FB 880 3W flybar 6 x FC 880 choked chain assembly 12 x SW 880H flying sword 30 x SL 880 safety linch pin 3 x TS 890 tilt strap ...

Page 40: ... high power density in a small space Modular coupling kits are available in two wide and three wide configurations in order to facilitate tight packed flown clusters The MC 880 2 Modular Coupling Kit consists of two top straps which attach to the box with M10 hex bolts supplied and a rear strap with fixes to the rear of the cabinet These parts when combined hold the cabinets firmly together and th...

Page 41: ...ular Coupling Kit consists of three top straps which attach to the box with M10 hex bolts supplied and two rear strap with fixes to the rear of the cabinet These parts when combined hold the cabinets firmly together and they can now be picked up as a single block ...

Page 42: ... its dimensions and curvature A tall thin stack will disperse a lot in the horizontal plane and become narrow in the vertical plane and likewise a wide stack will narrow in the horizontal plane There is usually an optimum compromise between the two so that a smooth transition can be obtained between the effect of the coupling of the two stacks down the centre line of the room and the effect of the...

Page 43: ... the same general rules apply as for flown arrays High packs should be kept well above head height and angled carefully for even coverage A three wide stack of TA 880H cabinets supported by four TA 880L bass cabinets as pictured below provides an ideal configuration for many situations giving 75 of horizontal coverage and standing just under 2 metres high ...

Page 44: ... damages can be initiated You the consignee must instigate any claim Please retain all packaging in case of future re shipment There will be a small packet of spare fuses with the unit Please keep them in a safe place Mechanical Installation A vertical rack space of 1U 44mm 1 75 is required for each unit If used in a mobile or transportable system the unit must be supported at the rear by addition...

Page 45: ...8 Bypass Key Allows the currently displayed parametric section to be bypassed Note The Highpass Lowpass filters and limiters can not be bypassed 9 Parameter Controls The three velocity sensitive rotary encoders allow the relevant parameter on the LCD screen to be adjusted 10 Input Meters Displays available headroom before input clipping occurs The bottom green LED is set at 24dB with the orange 0d...

Page 46: ...e as shown on the rear panel legend N B A spare fuse is located in this holder 15 Mains Power Connected via a standard IEC socket A compatible power cord is supplied with the unit 16 External RS232 via a 9 pin DIN DEE socket for connection to a PC 17 XLR Inputs and Outputs 3 pin XLR connectors are provided for each audio input and output All terminations are fully balanced pin 2 Hot pin 3 Cold and...

Page 47: ...es careful attention to the signal cable grounding will effect a cure AC Power Fusing The incoming mains power fuseholder is mounted on the rear panel If the fuse needs to be replaced it must be properly rated as follows 20mm 1A 250 V type T It is important for continued safety that this specification is adhered to It is very unlikely that this fuse will fail during normal use and such a situation...

Page 48: ...o 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 phas...

Page 49: ...al filtering Audio grade capacitors are used in the analogue signal path Sonically superb ADC DAC combination a carefully matched pairing of the best devices from Burr Brown and Wolfson Newly released family of Analogue Devices SHARC DSP Extended bandwidth 96kHz sampling frequency provides for a nominally flat response to 40kHz Front panel parameter rotary encoder provides a familiar and easy to u...

Page 50: ...again completes the process The Recall function operates in a similar way pressing the recall button allows the user to select which preset they require pressing the button for a second time then confirming recalls the new DSP settings The unit allows the user to set up user programs with full access to all parameters Note that presets cannot be stored or recalled when secure mode is activated Cha...

Page 51: ...t parameter knob adjusts the rightmost parameter and so on Output signal and limiter indication two LED s are provided for each output channel These show the signal level relative to the limiter threshold The yellow LED will light when the signal is 6dB below the threshold and the red warning LED will light when the limiter threshold is reached Mute buttons and status LED s each output has a mute ...

Page 52: ...the ground connection of the unbalanced source Audio Output connectors the processed outputs are impedance balanced and are wired pin 1 ground pin 2 hot and pin 3 cold An unbalanced input may be driven by by connecting pin 3 cold signal to the ground connection of the unbalanced destination input Note that output pin 1 s are ground lifted at audio frequencies but connected to ground at RF for good...

Page 53: ... settings that are a function of the loudspeaker cabinet design and should not require adjustment for different applications To recall a Factory Preset for a particular cabinet or system press Recall and use the left hand parameter knob A to scroll through the available factory preset locations as indicated by a box symbol after the preset number Once the appropriate preset has been selected press...

Page 54: ...s parameters A parameter may be adjusted when it is displayed by turning one of the three parameter knobs Each of the three parameter knobs is associated with a zone on the display Adjusting the leftmost parameter knob will change the value of the parameter showing in the leftmost zone of the display and so on Turn a knob clockwise to increase the value of a parameter or anti clockwise to decrease...

Page 55: ...ion buttons gives access to the various pages of parameters available for each channel The currently selected page is shown in the bottom left hand corner of the display this is omitted on some pages where the function is obvious The screen shows up to three normally related parameters for a given part of the processing functions on a given channel The edit buttons allow you to scroll in either di...

Page 56: ... number Press the Recall Button again to activate the Preset Pressing any other button will cancel the operation LMS D26 Preset Name Recall 32 My System a b c SELECT PRESET TO RECALL a RECALL RECALL Users can develop their own Preset based on one of the basic or Factory Presets stored within the device Once a basic or user Preset has been recalled a user has complete freedom to adjust any or all o...

Page 57: ... characters in length can be entered using parameter knobs B and C Pressing the Store Button again completes the process and stores the Preset As with Preset Recall pressing any other button cancels the operation LMS D26 Preset Name Store 32 My System a b c SELECT STORE LOCATION a STORE STORE c b NAME PRESET The user can overwrite non protected Presets only if an attempt is made to save a Preset i...

Page 58: ... of applications There are two Formats Mono or Stereo With the Mono format all outputs have unique parameter settings and all outputs are identical in terms of processing functions and routing capability This is the most flexible Format Stereo format pairs the inputs and outputs for stereo operation the parameters of each member of the pair being identical The routing of inputs to outputs is fixed...

Page 59: ... In A Delay 1 50ms a b c a 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 The velocity sensitive Parameter Knobs therefore provide accurate setting of driver offset delays typically below 10ms and rapid setting of longer system alignment delays ...

Page 60: ...ring as it affects all outputs and can therefore improve inter band phase relationships Filter type is selectable from Butterworth Bessel Linkwitz Riley and Hardman Filter slopes of up to 4th order or 24dB octave are provided Not all filter types are available in all slopes For example 18dB octave Linkwitz Riley filters do not exist The Hardman type filter is always described by its order as the f...

Page 61: ...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 Parametric filters LMS D26 In A Freq Width Gain EQ1 100Hz 1 4Q 0 0dB a b c c b a Knob A Centre Frequency 10 0Hz to 25 6kHz in variable steps Knob B Width display selectable Q or BW Bandwidth BW adjustable from 0 05 to ...

Page 62: ...stable in 0 2dB steps from 80 dB to 20dB Knob B Polarity selectable normal or reversed with reference to other outputs Delay LMS D26 Out1 Delay 1 50ms a b c a 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 63: ...electable 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 The Hardman type filter is always described by its order as the filter becomes progressively steeper rather than following a linear slope so a dB octave description is n...

Page 64: ... 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 LMS D26 Out1 Freq Width Gain EQ1 100Hz 1 4Q 0 0dB a b c a b c Knob A Centre Frequency 10 0Hz to 25 6kHz in variable steps Knob B Width display selectable Q or BW Bandwidth BW adjustable from 0 05 to 5 octaves ...

Page 65: ...s provided on each output Threshold is user adjustable all other parameters are carefully calculated dependant on configuration to provide clean and effective control of signal dynamics Routing LMS D26 Out1 Source Inp A a b c a Knob A Output source selectable Input A Input B or Sum A B Configures the routing from input to output This function is only available in mono format Presets ...

Page 66: ...andwidth 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 Parametric equalisation width parameters can be displayed in either Q or bandwidth expressed in octaves LMS D26 Util Screen ParaEQ 100 BW Q a b c ...

Page 67: ...the ground connection of the unbalanced source Audio Output connectors the processed outputs are impedance balanced and are wired pin 1 ground pin 2 hot and pin 3 cold An unbalanced input may be driven by by connecting pin 3 cold signal to the ground connection of the unbalanced destination input Note that output pin 1 s are ground lifted at audio frequencies but connected to ground at RF for good...

Page 68: ...ncert touring The rack contains a total of five lightweight Turbosound T series amplifiers developed and designed in England for Turbosound by MC2 Audio Ltd Input and output connectors are mounted on a pair of 2U 19 panel at the rear of the rack The basic rack itself is a space frame fabricated from rectangular steel sections with all necessary mounting points welded in The top and side apertures ...

Page 69: ...higher depending on program material and musical style Therefore the provision of an additional low frequency gives considerable flexibility in the configuration of bass cabinets in small to medium sized systems without carrying extra and separate power amplifiers Alternatively it enables the implementation of a five way system using subwoofers for extreme LF energy while complementing the fast ac...

Page 70: ...ed 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 Two 4 metre fanouts are supplied to take the 19 way cable outputs to...

Page 71: ...FC 4 04 02 HF HF 3 NL4FC 3 08 06 HM HM 3 NL4FC 2 15 16 14 13 LM LM 2 SOCAPEX PIN NO SOCAPEX PIN NO CH1 CH2 CH1 CH2 CH1 CH2 CH1 CH2 CH1 CH2 CH1 CH2 Figure 3 Bass Outputs NL4 PIN NO CH 1A CH 2A CHANNEL 1 BASS A NL4FC 1 02 04 03 01 LF LF NL4 PIN NO CHANNEL 2 BASS A NL4FC 1 06 07 LF LF SOCAPEX PIN NO SOCAPEX PIN NO 08 05 CH 1B CH 2B CHANNEL 1 BASS B NL4FC 1 10 12 11 09 LF CH1 CH2 CH1 CH2 CH1 CH2 CH1 C...

Page 72: ...S CAN BE SUPPLIED TO EITHER CONNECT 6 OR 8 CABINETS TO TWO AMPLIFIER S SOCAPEX PIN NUMBERS 17 18 19 NOT USED 1 1 1 1 1 1 LOW LOW LOW LOW LOW LOW 14 13 12 11 10 09 15 16 LOW LOW 1 1 1 1 LOW LOW 08 07 NL4 PIN NO SOCAPEX PIN N O 01 02 03 04 05 06 LOW LOW LOW LOW LOW LOW 1 1 1 1 1 1 ...

Page 73: ...O NL8 PIN NO PIN NO NL8 SOCAPEX PIN NO 1 1 2 2 3 3 3 3 2 2 1 1 10 12 01 03 05 07 09 11 LOW MID LOW MID HIGH MID HIGH MID HIGH HIGH HIGH HIGH HIGH MID HIGH MID LOW MID LOW MID 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 These cables utilise 2 5 mm2 conductors for low line resistanc...

Page 74: ...ions are as follows 110 V star wired 3 phase 110 V parallel 1 phase 220 240 V 3 phase 220 240 V 1 phase The mains power wiring utilises Wago distribution blocks with spring loaded screwless connectors The power wiring may therefore be quickly and easily reconfigured should the need arise for example if conversion from single to three phase operation is required We recommend you consult a qualified...

Page 75: ...ithin temperature limits Signal limiters are included to protect speakers from clipped signals The amplifiers include full DC and short circuit protection to ensure trouble free service even in harsh environments Two independently controlled and powered channels High continuous power in excess of 1250 watts per channel into 4 ohms T 25 and 2250 watts per channel into 4 ohms T 45 3dB indicators to ...

Page 76: ...llows the gain of the channel to be adjusted Signal blue LED indicates signal presence active from a minimum output level of 10 watts 3dB yellow LED is active when the signal is 3dB below the limiting level Limit amber LED indicates operation of the limiters PRC green LED indicates when the PRC for that channel has been selected Bridge BRG green LED illuminates when bridge mode is selected Fault A...

Page 77: ...llows the gain of the channel to be adjusted Signal blue LED indicates signal presence active from a minimum output level of 10 watts 3dB yellow LED is active when the signal is 3dB below the limiting level Limit amber LED indicates operation of the limiters PRC green LED indicates when the PRC for that channel has been selected Bridge BRG green LED illuminates when bridge mode is selected Fault A...

Page 78: ...ire please ensure that people and combustible or flammable materials e g plastic waterproofing newspaper clothing costumes solvents are kept at least 2 0 6m from the amplifier s exhaust outlets If venting is inadequate the hot air can adversely affect other equipment and may soften some thermoplastic enclosures If using plastic coated cables take care to dress the leads away from the airflow Profe...

Page 79: ...8 120 V range This is however dependent on load impedance and program drive level as mentioned above Obviously the mains voltage will reach these limits only in exceptional circumstances and the A P Audio Protect LED will then flash Audio Connections Controls The amplifiers actively balanced fully floating input connections are fuss free regardless of the installation s complexity The incoming 3 p...

Page 80: ...o a positive V input gives a positive V output from the positive output terminals Input Impedance Each amplifier channel has an input impedance of 10kΩ seen between pins 2 3 of the XLR When used with the LMS D6 Loudspeaker Management System distribution amplifiers are not required when a large number of T 25 or T 45 amplifier inputs are driven in parallel Gain and Sensitivity Settings Gain setting...

Page 81: ...ctions 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 b...

Page 82: ...n 1 Do not run output cables next to input signal lines Keep apart and preferably cross at right angles If cables have to follow a similar route or path keep them separated by at least 2 feet 0 6m The Cooling System The cooling fans respond to temperature sensors within the unit to maintain a safe operating temperature In the event of excessive temperature the protection circuit will operate disab...

Page 83: ...rray angle 25 H x 15 V 25 H x 15 V n a Power handling rms LMF 500 watts HMF 200 watts HF 100 watts HMF 200 watts HF 100 watts 500 watts Sensitivity 1w 1m LMF 108dB HMF 114dB HF 114dB HMF 114dB HF 114dB 108dB Max SPL max cont 140dB 146dB 140dB 146dB 135dB 141dB Crossover bands LMF 101Hz 405Hz HMF 405Hz 4kHz HF 5k99Hz 20kHz HMF 405Hz 4kHz HF 5k99Hz 20kHz 101 405HzHz Nominal impedance LMF 8 ohms HMF ...

Page 84: ...x 30 3 Net weight 50kg 110lbs 110kg 242lbs Frequency range 4dB 45Hz 250Hz 35Hz 150Hz Power handling rms 1100 watts 1200 watts Sensitivity 1w 1m LMF 101dB 104dB Max SPL max cont 132dB 138dB 135dB 141dB Crossover bands LMF 30Hz 101Hz 30Hz 150Hz Nominal impedance 8 ohms 4 ohms Construction 15mm birch ply 18mm birch ply Connectors NL4MP NL4MP ...

Page 85: ...anty 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 You should include a written statement listing the faults found and the product serial number must be quoted ion all correspondence...

Page 86: ...user manual TA 880 TA 880 user manual Page 86 Turbosound Limited Star Road Partridge Green West Sussex RH13 8RY United Kingdom ...

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