Instruction Manual for L-ACOUSTICS models including: LA2Xi Amplified Controller, LA2Xi, Amplified Controller, Controller
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DocumentDocumentLA2Xi AMPLIFIED CONTROLLER FOR INSTALL 4 x 4 architecture in AVB, AES, Analog Milan seamless redundancy Compact (1U) Matched power for small loudspeakers Reduced power for larger loudspeakers Bridge mode at full power for larger loudspeakers LA2Xi is a four-channel amplified controller dedicated to permanent installations. It is primarily designed to power L-Acoustics small-format loudspeakers. LA2Xi also supports larger loudspeakers in applications that require lower sound pressure levels (SPL) in a 4 x 4 single-ended mode or full SPL capacity in 4 x 3, 4 x 2 or 4 x 1 bridged modes. Packaged in a 1U chassis for efficient use of rack space, LA2Xi incorporates features tailored for integration applications. Its streamlined and elegant front panel hides the same DSP engine as the flagship LA12X amplified controller, with features for loudspeaker management, protection and monitoring as well as a comprehensive set of tools for system adjustment and calibration. The Milan-certified LA2Xi offers AVB inputs with seamless redundancy as well as analog and AES inputs. The rear panel offers terminal connectors for AES and analog inputs, loudspeakers outputs as well as 4 GPIO and a 24 V DC backup power for the DSP card, enabling external control and monitoring, and ensuring fast recovery in case of power loss. LA2Xi is remotely controlled and monitored by LA Network Manager. The flexible LA2Xi is ideal for background music systems in leisure venues, distributed fills, studio monitors and private auditorium systems. I/O LA2Xi provides four analog inputs, four AES inputs with active links and failsafe relay on terminal connectors and one AVB input stream with up to 8 channels on etherCONTM. Automatic fallback functions from AVB to AES and AES to analog make the creation of redundant audio paths possible. LA2Xi enables AVB seamless redundancy according to the Milan protocol. In case of connection loss on the primary network, audio will pass automatically on the secondary network without any audible artefact. Routing inputs to outputs is done within LA Network Manager. With a flexible output channel architecture, LA2Xi adapts to the needs of various applications, allowing for a 4, 3, 2 or 1 output channel configuration. The single-ended mode provides matched power for smaller loudspeakers and scaled power for larger loudspeakers, while the bridge mode offers maximum SPL capabilities for all supported loudspeakers. DSP All L-Acoustics amplified controllers integrate powerful DSP resources gathering loudspeaker management, loudspeaker and amplified controller protection, and a comprehensive set of tools for system adjustments to create a natural, transparent and realistic sound experience. The DSP engine is divided into three blocks. System alignment: The first block provides tools to create a coherent system by setting optimal summation of each element of the system. Gain, delay up to 1 second and polarity settings are available for each output channel. System tonal balance: The second block provides advanced tools to maintain a consistent sonic signature between arrays in the system and a consistent sound from one venue to another. Array Morphing is used to adjust the tonal balance of line sources, regardless of the geometry of the array. A set of adjustable IIR and phase linear FIR filters are used to fine-tune the system to a specific venue or configuration. The Air Compensation tool is used to adjust the system response in regards to atmospheric conditions while preserving driver resources. System performance: The third block is the system parameters that unify loudspeaker response and system protection through specific loudspeaker presets developed in-house. It integrates the proprietary L-DRIVE protection system to maximize output power and minimize nonlinearities. L-DRIVE optimum protection ensures durable performance and preserves sonic transparency in the linear and nonlinear domains. IN A IN B 4x4 IN C MATRIX IN D GAIN GAIN GAIN GAIN Accessible via LA Network Manager only Accessible via LA Network Manager and front-panel user interface depending on preset type L-Acoustics parameters Manageable by groups SYSTEM PARAMETERS DEL POL DEL POL DEL POL DEL POL SYSTEM PARAMETERS ARRAY MORPHING + MULTI-BAND EQ + AIR ABSORPTION COMPENSATION FILTER ARRAY MORPHING + MULTI-BAND EQ + AIR ABSORPTION COMPENSATION FILTER ARRAY MORPHING + MULTI-BAND EQ + AIR ABSORPTION COMPENSATION FILTER ARRAY MORPHING + MULTI-BAND EQ + AIR ABSORPTION COMPENSATION FILTER IIR FILTERS - BESSEL, BTW, LR x N XMAX L-DRIVE T°C L-DRIVE PEAK L-DRIVE AMP x N OVER-EXCURSION THERMAL OVER-VOLTAGE PROTECTION PROTECTION PROTECTION FIR FILTERS - ZERO PHASE SHIFT, LINEAR PHASE FIR SYSTEM MONITORING L-Acoustics amplified controllers integrate supervision functionalities to check amplifiers and loudspeakers status, behavior and continuity. The amplified controllers can monitor input and output signal integrity, levels, temperature and voltage values as well as a power amplifier failure. Any malfunction is reported in real-time within LA Network Manager control software. A combination of real-time load presence tests with periodic silent tests monitors output circuits. The Load checker functionality verifies the output cabling and the number of enclosures in parallel and validates that the preset loaded matches the connected enclosures. In case of input signal fault, the fallback modes automatically and instantaneously switch from the primary signal type over to the fallback inputs (AVB to AES and/or AES to Analog). The amplified controllers support dual network redundancy following the Milan protocol. Two AVB networks run simultaneously, and the amplified controllers switch seamlessly to the secondary network in case of failure on the primary network. GREEN POWER The latest generation of L-Acoustics amplified controllers relies on universal switch-mode power supplies (SMPS) for mains voltage from 100 V to 240 V +/- 10% (50 - 60 Hz). The SMPS is equipped with a power factor correction (PFC) to maximize the amplifier efficiency taking advantage of nearly 100% of the electrical power available with a very high tolerance to unstable mains. The combination of PFC and class D amplification leads to high energy-efficiency, low heat dissipation and electrical power requirements (cable gauge, power conditioning, etc...). From a single 10 A line LA2Xi delivers 4 x 640 W RMS power at 4 with record hold times. L-Acoustics amplified controllers are designed to hold high power over a long period of time, typically 200 ms, yielding the best performance to loudspeaker systems, especially in the low frequency domain. APPLICATIONS LA2Xi supports a wide variety of near-field installed applications, powering main or fill systems in theaters, studios, private auditoriums, conference halls and other leisure venues. Background music in restaurant with X4i Front fills with 5XT Under balcony fills with X8 Studio monitors with X8 - Bridged mode Private auditorium with Syva and Syva Sub ENCLOSURE DRIVE CAPACITY Categories - Series Short throw X Series Medium throw S Series Medium throw A Series Long throw K Series Subwoofers Reference X4i 5XT X8 X12 X15 HiQ Syva Syva - Syva Low Syva Low Syva Sub A10(i) Wide/Focus A15(i) Wide/Focus KIVA II KARA II(i) K3(i) K2 K1 K1-SB SB15m SB18(i/m) SB28 KS21(i) KS28 Single ended mode nb of enclosure per LA2Xi Max SPL reduction (dB) 16 0 16 0 8 - 4 4 - 5 2 - 5 4 - 7 4 - 6 4 - 6 4 - 5 8 - 4 4 - 5 8 - 5 4 - 5 - - - - - - - - 4 - 6 4 - 5 4 - 6 4 - 7 4 - 7 Bridge mode (Max SPL) nb of enclosure per LA2Xi 2 2 2 2 2 2 4 2 2 1 2 1 SOFTWARE AND NETWORK LA Network Manager is designed to efficiently take users through the workflow process of Setup, Tuning, and Live. The tools required for each task are available in the dedicated page for each step of the control and supervision process. An advanced network engine allows automatic discovery of connected units, multiple-group assignation, realtime monitoring with event logging, and includes numerous productivity tools. L-Acoustics amplified controllers are controlled using a proprietary Ethernet-based network L-NET. Thanks to its high-speed data transfer protocol of 1 Gbit/s, up to 253 units can be controlled and monitored in real-time by LA Network Manager, a proprietary software available on both Windows and Mac operating systems. All amplified controllers are fitted with two Ethernet ports allowing daisy-chain topologies, star topologies or a hybrid of the two, using standard CAT5e U/FTP cables. LA NETWORK MANAGER LA NETWORK MANAGER LA NETWORK MANAGER LS10 P1 ... ... DAISY CHAIN TOPOLOGY LA2Xi LA2Xi LA2Xi ... HYBRID TOPOLOGY *Milan redundant topology is not available for LA4X. LA2Xi LS10 PRIMARY LS10 SECONDARY LA4X LA2Xi LA12X ... MILAN REDUNDANT TOPOLOGY* LA2Xi LA2Xi LA12X Milan is the application layer based on AVB that ensures true interoperability between any Milan-certified devices. AVB is an evolution of the legacy Ethernet that was designed for media transport. AVB is the only protocol that guarantees a deterministic and synchronous network behaviour for the transmission of time-sensitive data. But AVB is a network layer technology that does not define an implementation strategy at the application layer. Milan takes care of that. As an initiative of the Avnu alliance that was developed by leading members of the industry, including L-Acoustics, Milan is an open solution, independent from any private entity. The Milan initiative developed agreed-upon standards for media stream format, media clocking, seamless redundancy, and more so that no network expertise is required to set up a reliable and deterministic AVB network with Milan-certified devices. Milan takes the burden of creating and managing IT networks and let users focus on creating amazing audio experiences. USER INTERFACE 1 234 5 6 1 1U chassis 2 Power LED 3 L-NET control network LED 4 Status LED 5 Signal, limit, clip LEDs 7 8 9 10 11 12 6 IEC V-Lock compatible power supply inlet 7 Loudspeaker outputs on 4-point terminal blocks 8 24 V DC External DSP backup voltage input 9 General Purpose I/O (GPIO) 10 Analog or AES/EBU terminal input connector 13 14 15 11 AES/EBU terminal link connector 12 Analog terminal input connector 13 Fan grill 14 1 Gb/s Ethernet etherCON connector 15 USB port for IP address configuration THIRD PARTY INTEROPERABILITY To facilitate the integration of L-Acoustics solution with media control systems, several modules and plug-ins have been developed to interface with popular control environments. Interoperability between L-Acoustics ecosystem and media control systems allows to centralize the management of L-Acoustics electronic devices with other types of devices through a customized interface and to monitor the PA system for voice alarm continuous capability. L-Acoustics developed plug-ins and modules for integration with the following manufacturer`s control systems: L-Acoustics plug-ins Programming Software PROGRAM COMMANDS Design Programmer (integrator/free-lance) AV Control Processor FEEDBACK COMMANDS FEEDBACK L-Acoustics Amplified Controllers AVB Processors Loudspeaker enclosures Operator (non-expert user) Touchscreen User Interface System Engineer LA Network Manager (for initial setup and tuning or advanced operations) SNMP AMPLIFIED CONTROLLERS THE RANGE All members of the latest generation of amplified controllers share similar architecture with extremely powerful DSP. The main differentiators between amplified controllers are gathered in the following table: Specifications Install / Touring In x Out Output power Sine burst, 1 kHz, 200 ms, < 1% THD, all channels loaded Nominal power requirements for 200 - 240 V Nominal power requirements for 100 - 120 V input channels Noise level (20 Hz - 20 kHz, 8 , A-weighted, digital input) Front panel LA2Xi Install 4 x 4/ 4 x 3 / 4 x 2 / 4 x 1 4 x 190 W RMS (at 16 ohms) 4 x 360 W RMS (at 8 ohms) 4 x 640 W RMS (at 4 ohms) 10 A 20 A 4 x Analog / 4 x AES / 4 x AVB* < - 78 dBV No screen, no buttons Height Weight 1U 4.4 kg / 9.7 lb * 4 channels from one AVB stream of up to 8 channels LA4X Install / Touring 4 x 4 4 x 1000 W RMS (at 8 ohms) 4 x 1000 W RMS (at 4 ohms) 10 A 20 A 4 x Analog / 4 x AES / 4 x AVB* < - 71 dBV LCD display with rotary encoder, power and mute keys 2U 11.3 kg / 24.9 lb LA12X Install / Touring 4 x 4 4 x 1400 W RMS (at 8 ohms) 4 x 2600 W RMS (at 4 ohms) 4 x 3300 W RMS (at 2.7 ohms) 16 A 30 A 4 x Analog / 4 x AES / 4 x AVB* < - 72 dBV LCD display with rotary encoder, power and mute keys 2U 14.5 kg / 32 lb LA2Xi AMPLIFIED CONTROLLER LA2Xi is a four-channel amplified controller dedicated to permanent installations. Designed to match the power of smallformat loudspeakers, LA2Xi can also be used to support larger loudspeakers at lower SPL capability (4 x 4 single-ended mode) or at full SPL capability (4 x 3, 4 x 2 or 4 x 1 bridge mode). The streamlined and elegant 1U front panel hides a powerful DSP engine with features for loudspeaker management, protection and monitoring as well as a comprehensive set of tools for system adjustment and calibration. In addition to analog and AES, LA2Xi integrates AVB signal inputs with Milan seamless network redundancy. Four GPIO and a 24 V DC backup power for the DSP card offer external control and improved reliability. The flexible LA2Xi is ideal for background music systems in leisure venues, distributed fills, studio monitors and private auditorium systems. SPECIFICATIONS Amplification and power supply Amplification class High-efficiency class D Output power, all channels loaded 4 channels at 4 4 channels at 8 4 channels at 16 2 channels at 8 1 channel at 4 Peak output power 12 dB Crest Factor, Sine burst, 1 kHz, 2 ms 710 W 370 W 190 W 1400 W 2750 W Output power 200 ms, Sine burst, 1 kHz, < 1 % THD 640 W 360 W 190 W 1260 W 2550 W Power supply model Universal Switched Mode Power Supply (SMPS) with Power Factor Correction (PFC) Mains rating 100 V - 240 V ~ ±10%, 50-60 Hz Audio specifications Frequency response (20 Hz - 20 kHz, 8 load, 60 W output power) ± 0.25 dB Distortion THD+N (20 Hz - 10 kHz, 8 load, 60 W output power) < 0.1% Output dynamic range (20 Hz - 20 kHz, 8 , A-weigthed, Digital input) > 113 dB Noise level (20 Hz - 20 kHz, 8 , A-weigthed, Digital input) DSP < - 78 dBV Digital Signal Processor (DSP) Gen.4 Dual SHARC 32-bit, floating point, 96 kHz sampling rate I/O routing 4x4 routing and summation matrix Per output channel Built-in EQ station with 8 IIR, 3 FIR EQ filters Array morphing (LF contour, zoom factor), Air absorption compensation filters Internal IIR and FIR EQ algorithms for speaker phase linearization and improved impulse responses L-DRIVE advanced system protection (excursion, temperature and over-voltage) Circuits protection Output delay from 0 to 1000 ms Mains and power supply Over and under voltage / over temperature / overcurrent (fuse protection, and inrush current protection) Power outputs Inputs / Outputs Overcurrent / DC / short circuit / over temperature Analog input AES / EBU input AVB input with support of Milan seamless dual networking Loudspeaker output Remote control and monitoring 4 channels on 4 male 3-point terminal blocks 4 channels (2 x AES3) on 2 male 3-points terminal blocks (44.1 - 192 kHz sampling rate) With active link and bypass relay 4 channels 48 kHz / 96 kHz from 1 stream of up to 8 channels 2 female 4-point terminal blocks Network connection General Purpose Inputs / Outputs (GPIO) External DSP backup voltage input Third-party management solutions Operating conditions Dual-port Ethernet Gigabit interface 4 GPIO, isolated optocoupler inputs, isolated relays contacts 24 V DC / 0.5 A on 2-point terminal block QSC® / SNMP / Extron® / Crestron® Temperature Physical data Room temperature from -5º C / 23º F to +50º C / 122º F Dimensions W x H x D Weight 483 x 44.45 x 265 mm / 19 x 1.75 x 10.4 in 4.4 kg / 9.7 lb LA2Xi_SPS_EN_1.1 - 10/2020 L-Acoustics, all rights reserved. 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