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4.1.1 Side Lobe Free Technology

Due to their construction, line source and line-array speakers generate unwanted Side Lobes in their
vertical axes. These result from the distances between the individual loudspeaker chassis and the
finite length of an array.

Beam with Side Lobes

LINEA FOCUS

systems are equipped with

Fohhn Side Lobe Free Technology

: A specially developed

algorithm effectively reduces the side lobes. This results in fewer unwanted sound reflections in the
room. Consequently, levels of speech intelligibility are improved and feedback prevention is
increased.

Optimized beam with Fohhn Side Lobe Free Technology

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Содержание DLI-230

Страница 1: ...ERIES LINEA FOCUS BEAM STEERING SYSTEMS DLI 130 DLI 230 LFI 350 LFI 450 USER MANUAL EN Please read this user manual through carefully before putting the system into operation and keep it for future re...

Страница 2: ...packing 13 3 Setting up 14 3 1 Installation 14 3 1 1 Tools for installation 14 3 2 Cabling 15 3 2 1 DLI 130 and DLI 230 connections 16 3 2 2 LFI 350 and LFI 450 connections 22 3 2 3 Opening the servic...

Страница 3: ...nical documentation 50 5 1 Technical Specifications 50 5 1 1 DLI 130 all product versions 50 5 1 2 DLI 230 all product versions 53 5 1 3 LFI 350 56 5 1 4 LFI 450 58 5 2 Technical Drawings 60 5 2 1 DLI...

Страница 4: ...is manual for future reference 1 1 Important Safety Instructions Please read the following safety instructions in their entirety before using this device Keep these instructions near the device at all...

Страница 5: ...mstances the load limit of any component that will be used for system suspension including shackles chains and hoists must not be exceeded In order to comply with local safety regulations these load l...

Страница 6: ...al mains supply voltage matches the power supply voltage specified on the device To minimize the risk of an electric shock or fire the device must not be subjected to moisture containers filled with l...

Страница 7: ...s This only applies to fixed installation variants The wiring up of loudspeakers should only be carried out by suitably qualified personnel Important To enable communication between a Windows PC with...

Страница 8: ...rature range The device should be immediately inspected by a FOHHN AUDIO AG approved service partner if the mains cable or power socket is damaged a foreign body or liquid has got into the interior of...

Страница 9: ...FOHHN AUDIO SOFT can be downloaded free of charge from www fohhn com If higher sound pressure levels are required in the low frequency range LINEA FOCUS systems can easily be combined with FOHHN acti...

Страница 10: ...having occurred inform your dealer and the transportation company immediately Please also check that the packaging contains all the components belonging to the device Your LINEA FOCUS system is deliv...

Страница 11: ...spigot with M10 internal thread black for LINEA FOCUS DLI 130 230 LF 120 220 and LFI 120 220 WAL 1 8428 B0000 8428 W0000 Angled wall mounting bracket pair for LINEA FOCUS DLI 130 230 black white WLF...

Страница 12: ...12 WAL 1 wall mounting bracket SA 9 stand adapter 2 part with spacer left with stand right SA 10 stand adapter left LC 50 clamp and TV spigot...

Страница 13: ...f transport damage If the product has been damaged inform the transportation company immediately A claim for transport damage can only be made by the recipient that is to say you Keep the packaging fo...

Страница 14: ...ies 3 1 1 Tools for installation The following tools are required for installing and wiring up a LINEA FOCUS loudspeaker system 1 an 8 mm spanner for the grounding screw LFI 350 and LFI 450 only 2 a 4...

Страница 15: ...must be fed into the speaker enclosure from behind via a cable duct It also means that no unsightly cabling will be visible The internal strain relief guarantees safe operation Widening the rubber pro...

Страница 16: ...of digital remote control signals FOHHN NET and digital audio signals AES EBU AIREA NET signals cannot be further routed no signal link Using the AIREA NET input AIREA BREAK OUT IN EXTENSIONS ABX can...

Страница 17: ...a these 3 pin Phoenix connectors One of the two 3 pin Phoenix connectors can be used as a link 5 Switching contact This 3 pin Phoenix connector serves as a switching contact for changing presets This...

Страница 18: ...ne of the two 3 pin Phoenix connectors can be used as a link 3 Fault message contact 2x An error status can be reported via these open closed contacts The fault contact relay 2 x UM should be operated...

Страница 19: ...igured in FOHHN AUDIO SOFT see Chapter 3 4 3 Switching contacts 6 Mains connection Mains connection is via a 2 pin WAGO grounding screwed The switching power supply with Power Factor Correction allows...

Страница 20: ...J 45 input 1000 Base T Ethernet 2 Dante Secondary und FOHHN NET This RJ 45 input 1000 Base T Ethernet is exclusively used for redundant cabling see Chapter 3 3 1 Configuration 3 Mains connection Mains...

Страница 21: ...21 WAGO for mains connection with two pins 1 and 3 and grounding screw 2...

Страница 22: ...Phoenix connector 4 Analogue Input 2 PRIORITY priority for emergency announcements This input is equipped with a Priority switch While a signal is detected at Analogue Input 2 Analogue Input 1 remains...

Страница 23: ...atus LED Using FOHHN AUDIO SOFT the LFI 350 450 can be switched into Standby Mode In this mode the LED turns red The amplifiers are switched off Power consumption is minimized economy mode The FOHHN N...

Страница 24: ...24 14 Grounding screw This grounding screw is used to professionally earth the LFI 350 450 15 Cable duct This cable duct with strain relief is intended for all connection cables...

Страница 25: ...US can be carefully prized open from its snap lock closure Two notches provide appropriate leverage points for the screwdriver Do this carefully to avoid damaging the paintwork Notch at the upper end...

Страница 26: ...shead screws on LFI 350 and LFI 450 models there are only two Service flap on a DLI 130 Carefully remove the four or two large crosshead screws Service flap with four crosshead screws and tooth lock w...

Страница 27: ...systems have no on off switches however connection to the mains supply via the power cable makes them ready for immediate operation To avoid any circuit overload when switching on the systems are equ...

Страница 28: ...230 ANA LFI 350 and LFI 450 systems you will need an appropriate FOHHN NET Adapter the NA 11 FOHHN NET USB ADAPTER or NA 3 FOHHN NET ETHERNET ADAPTER Example Controlling a DLI 130 ANA system via comp...

Страница 29: ...DLI 130 DAN systems via computer and Ethernet Switch for simpler cabling Example Control of three DLI 130 DAN systems via computer and Ethernet Switch using redundant cabling Here all devices must al...

Страница 30: ...RL https www audinate com products firmware update manager Dante Firmware files have the extension dnt and can be downloaded from here https www fohhn net download dante Example Focus_1 0 2 dnt for Da...

Страница 31: ...rmware is unaffected and must if necessary be separately updated Here you can find all of Audinate s technical documentation relating to Dante https www audinate com resources technical documentation...

Страница 32: ...software is required Regardless of the loudspeaker systems you can always work with the same software and within the same user interface The current version of FOHHN AUDIO SOFT can be downloaded free...

Страница 33: ...Ethernet Switch to the loudspeaker system using the appropriate CAT i e fibre optic cable 4 Start FOHHN AUDIO SOFT The selected FOHHN NET adapter will automatically be recognised With the DLI 130 230...

Страница 34: ...system a new ID 5 Confirm this by clicking Ok The loudspeaker will now have a newly assigned ID Further information on setting up a FOHHN NET and on FOHHN NET ID allocation can be found in Chapter 4...

Страница 35: ...3 3 6 Renaming Devices Channels For better identification within FOHHN AUDIO SOFT it is recommended that in an installation involving several LINEA FOCUS products the individual loudspeakers are give...

Страница 36: ...ows to arrange your LINEA FOCUS systems 1 Open the Devices or Speakers view either via the corresponding entry in the Menu view or via the respective button on the Toolbar 2 Arrange the individual lou...

Страница 37: ...LINEA FOCUS systems For DLI 130 and DLI 230 systems three different loudspeaker presets can be selected from the database Default Music for better music reproduction and Speech for improved speech re...

Страница 38: ...mpletely deactivated Proceed as follows to set up Auto Power Save in FOHHN AUDIO SOFT 1 Select one or more LINEA FOCUS system s in the Device List then with a right mouse click open the context menu 2...

Страница 39: ...n with a right mouse click open the context menu 2 In here select the Options entry This will open the Advanced device settings configuration dialog 3 In here select one or more LINEA FOCUS system s t...

Страница 40: ...kHz 30 dBV Input 2 is also equipped with a low pass filter operational at 16 kHz 6 dB in order to filter the pilot tone Using Input 2 without the pilot tone is not recommended as this can lead to flu...

Страница 41: ...ted or locked to prevent any inadvertent changes This password protection can be set up in FOHHN AUDIO SOFT Further information on password protection can be found in Chapter 6 6 Password Lock of the...

Страница 42: ...to precisely control the vertical beam width and inclination angle of the loudspeaker system over a wide frequency range In general the longer the loudspeaker the lower the frequencies that can be in...

Страница 43: ...ker chassis and the finite length of an array Beam with Side Lobes LINEA FOCUS systems are equipped with Fohhn Side Lobe Free Technology A specially developed algorithm effectively reduces the side lo...

Страница 44: ...vers the entire frequency bandwidth All parameters such as the vertical inclination angle and vertical beam width the acoustic centre position level and high pass filtering can be separately configure...

Страница 45: ...sociated parameters can be found in section 4 7 3 System Setup FOCUS SERIES of the FOHHN AUDIO SOFT user manual 4 1 3 Acoustic Centre This function allows you to move the vertical position of a beam s...

Страница 46: ...meters that are relevant to Beam Steering Its depiction and management are covered in the following sections The Device Selection This shows all the FOCUS SERIES devices that are in the system along w...

Страница 47: ...reference frequency for calculation and display in the neighbouring Focus Simulation The frequency you input here will have no effect whatsoever on the sound being reproduced by your loudspeaker Upsid...

Страница 48: ...the acoustic centre moves to what is virtually the bottom end of the speaker whereas 100 takes it to the top end In its default setting of 50 or if Optimize is not active the acoustic centre sits at w...

Страница 49: ...save the settings on the computer as a FOHHN AUDIO SOFT Project fap proceed as follows 1 In the File menu select Save Project As 2 Select the location in which you want to save your project Click on S...

Страница 50: ...ca 9 4 kg Weight 4 DLI 130 OPT tbc Optional features Special colours 5 all RAL Classic colours Fohhn Texture Design Electronic features Amplifier power 8 x 100 W Amplifier type Pure Path Digital PWM...

Страница 51: ...remote monitoring DLI 130 OPT Remote control Fohhn Net over IP Fohhn Audio Soft Remote monitoring Temperature Protect Signal Power Supply Fohhn Net Fohhn Audio Soft Tilt sensor Pilot tone Pilot tone...

Страница 52: ...inputs 2 x Duplex LC Optocore 2 Gbps Optocore and Fohhn Net Signal link Optocore Ring Mains connection tbc Fault message contact Switching contact Displays internal DLI 130 AES Power on off stand by...

Страница 53: ...ier power 16 x 100 W Amplifier type Pure Path Digital PWM DSP channels Fohhn Audio DSP 16 Gain 25 dB Input sensitivity 0 dBFS Input sensitivity DLI 130 ANA 1 4 V Frequency response 20 Hz 20 kHz Signal...

Страница 54: ...ult message contact Switching contact Controllers Digital Signal Processors 2 Independent Limiters 6 Selective 3 band limiting bass mid high Band specific time constants yes Filter technology 80 bit d...

Страница 55: ...ct Displays internal DLI 230 AES Power on off stand by green on red stand by red flashing fault blue sign Network control receive send remote control LED Displays internal DLI 230 ANA Power on off sta...

Страница 56: ...Extensions OPTOCORE MADI over CAT5 and optical fibre Audio outputs 2 x link DSP channels Fohhn Audio DSP 24 Amplification 25 dB Input sensitivity 1 4 V Frequency response 20 Hz 20 kHz S N Ratio 105 d...

Страница 57: ...t weight without optional equipment 6 other RAL colours or NCS available on request Performance Data LFI 350 U 230 VAC Conditions Performance Current A Performance Watt ohmsch Performance VA Standby 0...

Страница 58: ...xtensions OPTOCORE MADI over CAT5 and optical fibre Audio outputs 2 x link DSP channels Fohhn Audio DSP 32 Amplification 25 dB Input sensitivity 1 4 V Frequency response 20 Hz 20 kHz S N Ratio 105 dB...

Страница 59: ...et weight without optional equipment 6 other RAL colours or NCS available on request Performance Data LFI 450 U 230 VAC Conditions Performance Current A Performance Watt ohmsch Performance VA Standby...

Страница 60: ...60 5 2 Technical Drawings 5 2 1 DLI 130...

Страница 61: ...61 5 2 2 DLI 230...

Страница 62: ...62 5 2 3 LFI 350...

Страница 63: ...63 5 2 4 LFI 450...

Страница 64: ...the NA 3 or NA 11 or to an Ethernet Switch DLI 130 230 DAN The power send and receive LEDS are not lighting up Not applicable to DLI 130 230 DAN products There is no supply voltage Check whether a su...

Страница 65: ...hat in the event of any problem occurring it can be returned in its original packaging This will minimize the risk of any potential damage during transportation 7 1 Maintenance Measures To clean your...

Страница 66: ...ol DSP FOHHN NET Here this refers to a control network that is based on the RS 485 protocol More on this in section 3 4 4 Fohhn Net Cabling and ID Allocation FOHHN NET Adapter To communicate with the...

Страница 67: ...3 Trademarks All trademarks and brand names referred to in this manual which may be protected by third parties are subject to the provisions of trademark law and the title rights of their respective...

Страница 68: ...xecutive Board or employees take any responsibility for direct or indirect damage including loss of profit which arises as a result of or in connection with the information in this manual Copyright Th...

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