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T-44/48 Series Amplifier

Operation Manual

T-44/48 Series | rev.

firm. 1.258 and above

38

you can access this feature from System Engineer application using the ‘Hamburger’ button on
the bottom-right of the device control panel, selecting ‘revert to factory settings’.

5.7 Protection Systems

Comprehensive protection features preserve the longevity of the loudspeaker and amplifier

by continuously monitoring several critical parameters, and reducing the gain, or muting the
amplifier either temporarily or permanently depending on the nature and seriousness of the fault
or misuse. The amplifier will recover and restart if at all possible, but may remain in shut down if
a serious fault persists.

Limiters deal with routine over-driving of the amplifier, making sure that the driver(s) are not

pushed too hard. The limiter indicators will warn you when the driver is being driven into limit.

Minor faults are dealt with by ‘dimming’ the amplifier, reducing the level to a sufficient

degree and for a sufficient time that the amplifier is able to recover gracefully without any user
interaction. When the fault condition has passed, the amplifier will recover automatically.

When the protection systems are reducing the level, this is indicated by illuminating the left-

hand Amplifier channel protection indicator. This will also illuminate when the output voltage is
‘clipping’. This indicator will remain permanently illuminated if the channel has been muted by
the protection systems. The Mute button will also flash. This will usually also be indicated by a
warning message on the display.

Some types of protection affect all output channels, so you may see the Amplifier indicator
illuminated, and the Mute button flash, on every channel.

Summary of Protection Indication

The reasons for the protection indicators illuminating are summarized as follows:

Amplifier Indicator

Driver Indicator

Notes

Limiter 6dB over

Thermal limiting

Excursion limiting

Amplifier clipping

Amplifier clip limiting

Amplifier Current limiting

Amplifier VHF limiting

PSU Current limiting

Will show on all output channels

PSU Power limiting

Will show on all output channels

Thermal limiting

Will show on all output channels

5.7.1

Incident Reporting

In the System Engineer application, a coloured indicator appears on a Device Bar in the

System View which displays the Incident state of the device. The Incident state may be one of
three states:

•

Red

: Fault (The device is faulty in some way and requires attention)

•

Yellow

: Check (The device may not be performing to its full and should be checked)

•

Green

: OK (The device is performing well and requires no attention)

Holding your mouse over the Incident indicator for a few seconds will show the current

incident level and name.

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Содержание T-44 Series

Страница 1: ...5 8 6 7 Advanced System Amplifier P C E I B S I I U D J 1 N N U e G A G OdBu E O T u I D O B E Y S U D 8 E D L 1 N R N R E Y P 1 T I O I D A R P G L 2 P R U R P G A 2 P I U O B E A S U I D U m R Y I T D E D R 1 N B 4 T I R I B E I 4 T I N R V Y P 0 E B V T S 0 E B O T S I U m R SELECT I T G SELECT G OdBu G I T u I D O O P t D A O E O P t D D 1 N O U e G U I L U D U 2 L T E J 2 N T E T I AES3 I D T...

Страница 2: ......

Страница 3: ...h the cart tripod bracket or table specified by the manufacturer or sold with the apparatus When a cart is used use caution when moving the cart apparatus combination to avoid injury from tip over 13 Unplug this apparatus during lightning storms or when unused for long periods of time 14 Refer all servicing to qualified service personnel Service is required when the apparatus has been damaged in a...

Страница 4: ... any covers loosen any fixings or allow items to enter any aperture Objects filled with liquids should not be placed on this apparatus Replace the mains fuse only with a fuse of the same type The rear of the product may get hot Avoid direct skin contact during operation and for at least 5 minutes after power has been isolated AVERTISSEMENT DE SECURITE Pour déconnecter l appareil de l alimentation ...

Страница 5: ...magnetic environments E1 E2 E3 E4 THIS PRODUCT MUST BE EARTHED Use only a flexible cable or cord with a green and yellow core which must be connected to the protective earthing terminal of a suitable mains plug or the earthing terminal of the installation The cord must be a maximum of 2m long have a 2 5mm 2 CSA a 300 500V rating and comply with EN50525 2 11 H05W F THIS PRODUCT IS DESIGNED FOR PERM...

Страница 6: ...t le mouvement d air libre à travers le produit DECLARATION OF CONFORMITY WITH CANADIAN ICES 003 This Class B digital apparatus complies with Canadian ICES 003 Cet appareil numérique de la classe B est conforme à la norme NMB 003 du Canada FEDERAL COMMUNICATIONS COMMISSION NOTICE An example of this equipment has been tested and found to comply with the limits for a Class B digital device pursuant ...

Страница 7: ...responsibility that devices in the T 44 48 Series range of products comply with Part 15 of the FCC Rules La operación está sujeta a las siguientes dos condiciones 1 Este dispositivo no puede causar interferencias perjudiciales y 2 este dispositivo debe aceptar cualquier interferencia recibida incluidas las interferencias que puedan provocar un funcionamiento no deseado Operation is subject to the ...

Страница 8: ...2 3 Drive Modules 14 2 4 Overlays 14 2 5 LIR Linear Phase Crossover Filtering 15 2 6 FIR Linear Phase Equalisation 15 3 Panels Interface User Guide 16 3 1 Panel Layouts 16 4 Operation modes 20 4 2 Input 26 4 3 Output 29 4 4 Utility Page 33 5 Hardware Function 35 5 1 Snapshots 35 5 2 Aux Port 35 5 3 Latency Delay 36 5 4 Secure Mode 37 5 5 Overlay Flush 37 5 6 Revert to Factory Settings 37 5 7 Prote...

Страница 9: ...01 e mail tecnare tecnare com Thank you again for placing your confidence in Tecnare products 1 2 Unpacking After unpacking the unit please check carefully for any damage to the device or the supplied accessories Every Tecnare product is tested and inspected before leaving the factory and should arrive in perfect condition If damage is found please notify the carrier concerned at once You the cons...

Страница 10: ...re Where the amplifier is used in a fixed installation as long as the bottom unit is supported and there are no gaps between units it is acceptable to use only the front panel 19 rack holes when fitting it in a standard rack enclosure If the amplifier is mounted in a mobile rack it is important that the rear is supported with a rear rack mounting kit part number TZA1182 Damage caused by insufficie...

Страница 11: ...ection The amplifier utilises a 32A Neutrik PowerCON TM type locking AC power connector Use only an AC power cord with a correctly terminated PowerCON TM type NAC3FC HC connector to make the connection to the mains power supply The amplifiers are designed to operate on 50 60 Hz AC power The power supply sections automatically configure themselves for either 115V or 230V nominal voltage at turn on ...

Страница 12: ...the amplifier to an unbalanced audio source the signal conductor should be connected to XLR pin2 The Cold conductor or cable screen should be connected to XLR pin 1 with a short connection made between pin 1 and pin 3 as shown in Figure 3 Fig 05 Balanced to Unbalanced Analog Wiring and Pin Out 1 6 2 Audio Output Connections The amplifier is fitted with one Speakon TM NL4 connector per amplifier ch...

Страница 13: ...CH1 CH3 and T 48 models In addition the channel 1 or channel 3 connector can also be used if the pair of amplifier channels is being operated in bridged mode Amplifier output connections Bridge 2 1 1 2 Speaker Speaker Fig 08 Amplifier Output Bridge connexion CH1 CH3 1 6 3 Load Matching 100 70 25V Line operation Each output of the device can be configured to drive either a low impedance load LOW Z ...

Страница 14: ...path design Class leading sonic performance achieved by the use of state of the art Amplifier technologies and highly advanced DSP algorithms using Linea Micro Detail LMD 96 kHz sampling frequency provides for a nominally flat response beyond 40 kHz Rotary encoders illuminated buttons and graphical display provide a rapid intuitive and user friendly control interface High speed Ethernet communicat...

Страница 15: ...Modules move the focus away from the processing device and onto the loudspeaker systems A Drive Module Preset may be broken apart into Components allowing any output to be used for any component within a Drive Module Preset i e any driver in a loudspeaker subsystem See Overview of Modules 2 4 Overlays When the Device is used in Modules view in System Engineer this allows the modules to be grouped ...

Страница 16: ...lter and maintains zero phase difference between the adjacent bands across the crossover region to keep the polar response rock steady See Figure 09 100 1 10 3 1 10 4 36 30 24 18 12 6 0 6 24dB Oct LIR Linear Phase Frequency Hz Magnitude dB Figure 09 LIR Filter 2 6 FIR Linear Phase Equalisation The Input High Shelf Equalisers use Finite Impulse Response FIR filtering to produce Linear Phase equalis...

Страница 17: ...r setting system gain structure The Clip mute Indicators warn the user of input overload and operate at 1dB before clip This indicator also shows a muted input Input mute is turned on off in the INPUT DSP gain page This indicator will also flash regularly if a Module Group has muted this channel Page Selection Buttons When one of the buttons INPUT DSP OUTPUT or UTILITY is illuminated the up and do...

Страница 18: ...hannel is clipping Driver indicators This indicates a signal 6dB higher than the limiter threshold or when the threshold of the excursion limiter has been exceeded or when the thermal limiter is active protecting against long term thermal stress Please note that because of the long release time of the thermal limiter this indicator may remain illuminated for several seconds after signal on that ch...

Страница 19: ...t channel of the pair will determine the settings See Bridge Mode Limiter Indicators The output indicators show the status of the limiter and output level The level indicated is that before the limiter referenced to the limiter threshold The SIG indicator shows signal presence and will illuminate when a signal is present in the output The second indicator 6dB shows that the signal has reached 6dB ...

Страница 20: ...ding Dante and AVB For a full list please consult http www tecnare com or your vendor Ethernet Communications Port Tecnare T 44 48 Series Amplifiers may be controlled entirely from another controller typically a Personal Computer running an application that is compliant with the ObCom standard such as System Engineer Connection will normally be made to the controller via this Ethernet port connect...

Страница 21: ...ng the way the screen will inform you of its progress Once this is complete the display will then show the Home screen indicating drive module configurations 4 1 3 Overviews of the Modules Preset and Snapshots A Drive Module represents a loudspeaker subsystem e g Sub and Composite and comprises one input channel and a number of output channels associated with one another by routing The size of the...

Страница 22: ...utput 2 component number Output 3 component number Output 4 component number Device Settings Input A component number Input B component number Input C component number Input D component number Output 1 component number Output 2 component number Output 3 component number Output 4 component number Output 5 component number Output 6 component number Output 7 component number Output 8 component number...

Страница 23: ... etc and the name the user has given to this channel The bottom line shows the physical input number and a list of the outputs which are routed from the Drive Module Fig 17 The Home page Screen 4 1 6 Drive Module The T 44 Series uses Drive Modules to represent loudspeaker sub systems Drive modules result in a less processor centric and more speaker orientated system design A drive module is define...

Страница 24: ... the processing for just one output Any part of a Module Preset may be recalled to any one output A Drive Module comprised of parameters which have been recalled to its outputs using Component Preset Recalls can then be saved into another Module Preset provided the outputs remain consecutive i e you have not changed the routing manually If the routing has been changed manually then the whole arran...

Страница 25: ...U BUTTON PRESS HOME SCREEN RECAL SNAP Fig 18 INPUT DSP and UTILITY menus CH B CH C CH A CH D FIR FIR FIR FIR EQ6 EQ6 EQ6 EQ6 EQ5 EQ5 EQ5 EQ5 EQ4 EQ4 EQ4 EQ4 EQ3 EQ3 EQ3 EQ3 EQ 2 EQ 2 EQ 2 EQ 2 EQ 1 EQ 1 EQ 1 EQ 1 EQb EQb EQb EQb EQa EQa EQa EQa HPF HPF HPF HPF DEL DEL DEL DEL GAIN GAIN GAIN IN GAIN RECL RECL RECL RECL STOR STOR STOR STOR IN IN IN IN ROUT ROUT ROUT ROUT LATEN LATEN LATEN LATEN HOME...

Страница 26: ... 5 EQ 5 EQ 5 EQ 4 EQ 4 EQ 4 EQ 4 EQ 3 EQ 3 EQ 3 EQ 3 EQ 2 EQ 2 EQ 2 EQ 2 EQ 1 EQ 1 EQ 1 EQ 1 EQ EQ EQ EQ LPF LPF LPF LPF HPF HPF HPF HPF DEL DEL DEL DEL GAIN GAIN GAIN OUT GAIN RECL RECL RECL RECL ROUT ROUT ROUT ROUT LIM LIM LIM LIM TMAX TMAX TMAX TMAX XMAX XMAX XMAX XMAX AMP AMP AMP AMP EQ EQ EQ EQ HOME HOME HOME HOME HOME HOME HOME HOME HOME HOME HOME HOME HOME HOME HOME HOME HOME HOME HOME HOME...

Страница 27: ...A STOR Preset Name SUBS 40 2 X 18 BASS Fig 20 Store module Screen Note Storing a Drive Module preset for a module which is not configured with consecutive outputs is not permitted Note When storing a Drive Module preset on the device Component Names cannot be edited To change Component names the Module Preset must be saved in the System Engineer application 4 2 2 Recalling Module Preset To recall ...

Страница 28: ...meter The amplifier will automatically select the correct sample rate from the incoming stream For other details on the operation of the Digital Audio Network please refer to the relevant manufacturer s documentation 4 2 5 Automatic Input Selection Fallover It is possible to configure the input selection to be automated The Input TYPE screen has a Fallover parameter which defaults to Manual allowi...

Страница 29: ...mes progressively steeper rather than following a linear slope so a dB octave description is not accurate 4 2 9 Parametric Equalization There are nine stages of equalisation available for each input channel three shelving filters and six parametric filters 4 2 10 FIR Shelving EQ The Input High Shelf EQ is implemented using a Finite Impulse Response FIR filter and exhibits a linear phase response t...

Страница 30: ...ect calibrated level When a sum input is selected the input DSP meters show the higher of the two inputs so that indication of the onset of clipping of either input is indicated 4 3 Output 4 3 1 Recalling Components To recall a Component Preset to a single output press the OUTPUT button then use the down button navigate to the RECL Preset page Using the encoder A will scroll through the component ...

Страница 31: ...y common FIR filtering but without the complications and disadvantages inherent with the FIR technique The shape of the LIR crossover filter is similar to a 4 th order Linkwitz Riley filter and maintains zero phase difference between the adjacent bands across the crossover region to keep the polar response rock steady Linear Phase filtering necessarily introduces delay the laws of physics demand i...

Страница 32: ...et relative to the threshold of the first Lo limiter The effect of the VX threshold and split frequency on the Limiter curve can be seen in System Engineer This Limiter introduces some delay In non VX mode this delay will depend on the lowest high pass frequency used in the crossover filters in a given Drive Module In VX mode the delay is related to the Split frequency This delay will be applied t...

Страница 33: ...y The frequency at which the above threshold voltage is appropriate for A further parameter Min may also be available for more advanced applications This allows the increasing limiting action at lower frequencies to level off below a certain frequency In most application this would be left set to its default value of 5Hz On Tecnare Loudspeaker Preset this protection is calibrated by Tecnare and ca...

Страница 34: ...e UTILITY menu Note Stereo linking state is not stored in Presets but is stored in Snapshots 4 4 3 Current Ethernet IP Address This may be viewed in The IP Curr page of the UTILITY menu This value cannot be edited 4 4 4 IP Mode The Ethernet IP address may be automatic Auto or may be a fixed static value Static as determined by the IP Mode page of the UTILITY menu WARNING Do NOT use Static mode unl...

Страница 35: ...setting the latter control to Manual Tecnare would strongly advise leaving it set to automatic however as there is no negative consequence to doing this since wake up on detecting the presence of an audio input signal is instantaneous The Standby Now parameter allows the amplifier to be put into standby mode manually when it is not being used Sleep is a deep power save mode which saves the most en...

Страница 36: ...ng edits to Drive Modules are stored before a Snapshot is stored 5 2 Aux Port The AUX has two inputs X Y These allow simple contact closure devices relays or switches or external logic signals to change the state of the amplifier as described below Connecting an AUX input to ground the earth symbol will trigger it there is no requirement for an external voltage However the ports can also be trigge...

Страница 37: ...call setting in the menu or in System Engineer Also under these conditions the snapshot menu items are not accessible and the Home screen will show the Snapshot number as a reminder Also see Snapshots on this page 5 3 Latency Delay All Digital Signal Processing and conversion between different formats of signal analogue digital network etc necessarily introduce some delay latency to the signal pat...

Страница 38: ... one another 5 4 Secure Mode When activated this will disable all the front panel controls so they cannot affect the signal path making the unit secure against tampering The only option that is left for user control is snapshot recall If this is not required then storing the same device state in every snapshot will effectively disable this feature When in secure mode the indicators still operate n...

Страница 39: ...lifier channel protection indicator This will also illuminate when the output voltage is clipping This indicator will remain permanently illuminated if the channel has been muted by the protection systems The Mute button will also flash This will usually also be indicated by a warning message on the display Some types of protection affect all output channels so you may see the Amplifier indicator ...

Страница 40: ...gineer application allows you to inspect various performance measurements including various graphs of performance against time recording events over a period of up to three days Since the amplifier cannot record any events whilst powered off breaks in a log due to power downs are indicated by a break symbol in the log The events recorded are Supply Current How much current is being supplied to the...

Страница 41: ... wide Similarly an input module can be saved with INPUT until the desired DSP input or until the STORE page coding wheels until the desired memory slot ENTER x 2 For more information about the device front panel commands please refer to Front Panel User Guide on page xxx 6 1 2 Software setup The System Engineer software allows to remotely controlling T 44 amplifiers T 48 amplifiers DP4896 DP2696 p...

Страница 42: ...handling overlays overlay parameters can remain after the module removal from a group In this case it is necessary to disconnect the device from network to flush overlay with the ENTER and UTILITY key combination and to rewrite group parameters 6 1 4 3 Preset and software versions A preset file created with a given version of System Engineer will be compatible with all following versions Compatibi...

Страница 43: ...as in antivirus or antimalware In order to make the connection work it is necessary to allow System Engineer to communicate via UDP ports which is done automatically most of the time but can also fail The simpler workaround is to use a router between the PC and the T 44 48 because the PC can keep the router firewall settings in memory and thus communicate with any T 44 48 Tecnare recommend using T...

Страница 44: ... range In an office IT environment where there is a DHCP server both the computer and the Device will be in the DHCP IP address range so will connect immediately 6 3 3 AUTO IP After the computer is switched on in an isolated network or unpluged from an IT network it takes a while to time out of DHCP searching so will not connect immediately It can take several minutes for the computer to acquire a...

Страница 45: ...ered on and that the RJ45 ports LEDs yellow and green are blinking Solution Verify all cables RJ45 can be rather fragile Check that the Firewall in the computer will allow System Engineer access to the network Wait 10 minutes for the computer to acquire the correct IP address and try again Check that the Current IP address in the device is compatible with the IP address of the computer Generally t...

Страница 46: ...o carry a little test in order to see if the T 44 48 answers to a request via the network without using System Engineer a very well known test for networking amateurs Find the T 44 48 current IP in UTILITY Current IP Open Windows command pront Start Menu type cmd in Start Menu search bar click on the cmd icon In the command prompt after type ping followed by a blank space and by the T 44 48 IP add...

Страница 47: ...c range AES3 or Dante input to speaker output 114dBA typ Frequency response 0 5dB 5Hz to 20kHz 4 Ohms 2 5dB 3Hz to 30kHz 4 Ohms Total harmonic distortion THD 0 05 typ 1kHz AES17 4 Ohms Inter channel crosstalk worst combination of channels better than 85dBr at 1kHz better than 75dBr at 10kHz Slew Rate Damping factor Ref 8 Ohms Maximum analog input level 60V per microseconds typical 800 at amplifier...

Страница 48: ...hen a dangerous situation is detected normal operation automatically resuming when the condition clears System protection Speaker protection Excessive output current Audio soft clip limiter Excessive power supply current VxLim Multiband peak limiter Unique to Linea Excessive amplifier section temperature VxMax Multiband overshoot limiter Unique to Linea Excessive power supply section temperature V...

Страница 49: ...on RMS output power per channel all channels driven with continuous program material and a nominal ambient temperature of 40degC 105degF Crest Factor of 4 12dB 2 Ohm nominal load 5 000W 2 500W 1 500W Crest Factor of 2 8 9dB 4 Ohm nominal load 3 000W 2 500W 1 500W Crest Factor of 2 6dB 8 Ohm nominal load 1 500W 1 500W 750W Bridged per channel pair 4 Ohm load 10 000W 5 000W 3 000W 25V line CV operat...

Страница 50: ...T 44 48 Series Operation Manual 49 T 44 48 Series rev firm 1 258 and above ...

Страница 51: ...T 44 48 Series Amplifier Operation Manual T 44 48 Series rev firm 1 258 and above 50 7 1 Processing Block Diagram ...

Страница 52: ...nd above 8 EQ and Filter Response Graphs 100 1 10 3 1 10 4 36 30 24 18 12 6 0 6 6dB Oct 12dB Oct 18dB Oct 24dB Oct 48dB Oct Butterworth Frequency Hz Magnitude dB 100 1 10 3 1 10 4 36 30 24 18 12 6 0 6 12dB Oct 24dB Oct 48dB Oct Linkwitz Riley Frequency Hz Magnitude dB ...

Страница 53: ...nual T 44 48 Series rev firm 1 258 and above 52 100 1 10 3 1 10 4 36 30 24 18 12 6 0 6 12dB Oct 18dB Oct 24dB Oct Bessel Frequency Hz Magnitude dB 100 1 10 3 1 10 4 36 30 24 18 12 6 0 6 4th Order 8th Order Hardman Frequency Hz Magnitude dB ...

Страница 54: ... 48 Series rev firm 1 258 and above 100 1 10 3 1 10 4 36 30 24 18 12 6 0 6 24dB Oct LIR Linear Phase Frequency Hz Magnitude dB 100 1 10 3 1 10 4 360 300 240 180 120 60 0 Bandwidths 0 1 to 5 Octaves All Pass Filter Frequency Hz Phase degrees ...

Страница 55: ... rev firm 1 258 and above 54 100 1 10 3 1 10 4 15 10 5 0 5 10 15 Low shelf varying Gain High shelf varying Slope Shelving EQ Frequency Hz Magnitude dB 100 1 10 3 1 10 4 15 10 5 0 5 10 15 Varying Gain Varying Bandwidth Parametric EQ Frequency Hz Magnitude dB ...

Страница 56: ...T 44 48 Series Operation Manual 55 T 44 48 Series rev firm 1 258 and above ...

Страница 57: ...oustics assumes no responsibility or liability for any errors or inaccuracies that may appear in this manual Except as permitted by applicable copyright law no part of this publication may be reproduced stored in a retrieval system or transmitted in any form or by any means electronic mechanical recording or otherwise without prior written permission from Exel Acoustics Tecnare and PCC Net are tra...

Страница 58: ...XEL ACOUSTICS SL CL Encinar 282 Pol Ind Monte Boyal 45950 Casarrubios del Monte To Spain e support tecnare com www tecnare com www facebok com tecnare T 34 918 170 110 34 918 171 001 F 34 918 183 053 System Engineer ...

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