Lake Audio LMX 88 - Audio System Processor for Loudspeaker Management with 8 x 8 Analog/Digtal I/O and 8 x 8 Dante Networked I/O in Black Finish

The Lake Audio LMX 88 is a highly versatile and powerful audio system processor designed for advanced loudspeaker management and system control. This unit is equipped with 8 x 8 analog I/O, 8 x 8 AES3 digital I/O, 8 x 8 Dante networked I/O, and two AES50 interfaces, offering exceptional flexibility in signal routing and integration with various audio systems. Whether used in live sound, broadcast, or studio environments, the LMX 88 ensures seamless management of multiple digital and analog sources while maintaining optimal audio performance.

One of the standout features of the LMX 88 is its 16 input routers, which allow for extensive customization. Each input router is independently configurable, with up to four failover priority settings, ensuring that if one signal fails, the system automatically switches to a backup source. This failover feature is essential for mission-critical audio applications where reliability and uninterrupted performance are a priority. The unit also supports the routing of up to 48 input channels and 48 output channels directly, making it ideal for large-scale installations where signal management flexibility is crucial.

To enhance usability, the LMX 88 allows for the creation of "Scenes" that store specific input routing configurations. These scenes can be easily recalled via the front panel, Lake Controller software, or through custom GPI (General Purpose Inputs) switches. This feature simplifies complex system configurations and enables quick adjustments during live events. Additionally, the LMX 88 is designed to handle multiple non-synchronized digital sources with ease, thanks to its high-performance, low-latency sample rate converters. These converters allow for smooth integration of various digital formats without compromising audio quality, and they can be bypassed if synchronous operation is required.

For reliability and fail-safe operation, the LMX 88 is equipped with dual redundant internal power supplies. These power supplies can operate independently, ensuring that the system remains operational even if one power source fails. The LMX 88 also features a comprehensive range of output processing capabilities, including FIR filters, parametric EQ, delay, crossover filters, and dynamic processing like limiters. The output processing is highly flexible, with support for up to 12 processed outputs, which can be routed to any combination of analog, AES3, Dante, AES67, or AES50 outputs.

Furthermore, the LMX 88 is designed for ease of use with a high-contrast full-color IPS display that provides at-a-glance information on system status, including fault and warning indicators. The unit also includes dedicated buttons for input and output muting and LED metering, ensuring that audio engineers can quickly assess the system's health and performance. The rugged 2U rackmount chassis ensures durability in demanding environments, making the LMX 88 an excellent choice for touring and permanent installations alike.

The LMX 88's comprehensive functionality is complemented by its seamless integration with the Lake Controller software. This touch-screen optimized software offers complete control over all parameters, allowing for real-time adjustments and fine-tuning of the system. With its extensive processing capabilities, redundancy features, and user-friendly interface, the LMX 88 is the ultimate solution for complex loudspeaker management in professional audio systems.

Features

• 8 x 8 analog, AES3, and Dante networked I/O for maximum connectivity options
• Dual AES50 interfaces with up to 24 channels selectable for input/output routing
• 16 independent input routers with up to 4 programmable failover priorities for seamless input switching
• Dedicated high-performance, low-latency sample rate converters per input for easy integration of non-synchronized digital sources
• Ability to create and recall customizable "Scenes" for efficient signal routing and system configuration
• Dual redundant internal power supplies with separate AC inlets for backup power sources
• Full system control via Lake Controller software for touch-screen optimized operation
• Extensive output processing including FIR filters, EQ, delay, crossovers, and dynamic processing
• Support for up to 12 processed outputs routed to analog, AES3, Dante, AES67, or AES50 outputs
• High-contrast full-color IPS display with LED metering and dedicated mute buttons for quick system monitoring
• Rugged 2U rackmount chassis designed for durability in touring applications
• Seamless audio transfer with low-latency digital audio via AES50 ports
• Advanced fault detection and warning system with detailed status and warning display on the front panel
• Multiple clock synchronization options for flexible system integration
• Supports up to 100 user-defined Frame and Scene presets for easy system configuration

Specifications

Front-Panel User Interface

• Display: Daylight readable full color IPS (320 x 210), Fault/Warning detailed description on display
• Menu: Intiutive interface with ability to recall Scene- and Frame Preset, Frame Config, see IP address, Mains status
• Meters and Mute buttons: 16x LED meters and clip indicators, with individual mute of inputs or outputs with dedicated buttons

Lake Features

• Module configuration: 8x MESA, 4x Contour or 2x Contour/4x MESA modules
• Processing channels: 12x in Contour, 8x in MESA, 10x in Contour/MESA
• Block program: Mesa, XP, Linear phase, Classic crossovers and Auxililary
• Input routers: 16 input routers with 4 priorities in each, seamless fallback to lower prioritizes
• Module Input mixer: 16 ch. for Contour-, 16 ch. for MESAmodules. Mix any ratio between all input routers.
• Link ability: Yes, via 24 channels of AES50
• Input Processing: Parameteric EQ with MESA and Ideal Graphic equalizers, both utilizing Raised Cosine algorithms
• Output Processing: Crossovers with up to 48dB/oct. Parametric EQ, shelving and allpass filters, FIR
• Features: Delay, Mute, Phase, Gain etc.
• Limiters: LimiterMax with Peak and RMS limiter
• SuperModule compatible: No

Audio Performance

• Conversion Resolution: 24-bit
• Internal Sample Rate: 96 kHz
• Internal Floating Path: 32-bit floating point
• Product Propagation Delay: Best case (AES syncronous 96 kHz to AES syncronous 96 kHz via DSP) 0.872 ms Analog (Analog in to Analog out via DSP) 1.036 ms Pass thru (Analog in to AES syncronous 96 kHz bypassing DSP 0.143 ms
• Maximum Available User Delay: 2 seconds from any input to any output

Analog

• Inputs: 8x inputs with Iso-Float ground isolation configurable (connectors shared with AES3 inputs)
• Outputs: 8x outputs
• Frequency Response, analog-to-digital: +/-0.05 dB, 20 Hz to 20 kHz
• Frequency Response, digital-to-analog: +/-0.2 dB, 20 Hz to 20 kHz
• THD+Noise, Inputs: 0.0015% typical at 1 kHz
• THD+Noise, Outputs: 0.0008% typical at 1 kHz
• Dynamic Range, Inputs: 126 dB
• Dynamic Range, Outputs: 116 dB
• Input Impedance: 20 kOhm balanced, 10 kOhm unbalanced
• Output Impedance: 50 Ohm
• Maximum Input level: +26 dBu
• Input Sensitivity Settings for Digital Full-Scale: +21 dBu
• Maximum Output level: +21 dBu
• Crosstalk, inputs: -108 dB, 20 Hz to 20 kHz
• Crosstalk, outputs: -98 dB, 20 Hz to 20 kHz
• Common Mode Rejection Ratio (CMRR): >70 dB, 20 Hz to 20 kHz

AES3/EBU with Sample Rate Converts available

• Inputs and Outputs: 8x inputs, 8x outputs
• ASRC: Yes, high quality low latency available per digital input
• Supporting Sample Rates: 44.1 kHz, 48 kHz, 88.1 kHz, 96 kHz, 176.4 kHz, 192 kHz (I/O individually selected)
• Supported Resolutions: Up to 24-bit
• THD+Noise (limits): -135 dB at 96kHz and -125 dB at 44.1 kHz sample rate
• THD+Noise (typical): -145 dB at 96kHz and -138 dB at 44.1 kHz sample rate
• Dynamic Range: Base48 -144 dBFS, Base44 -142 dBFS

Internal clock

• Oscillator type: High quality VCXO clock
• Syncronization: Can syncronize to any digitial input and output any input clock on any output
• Synchronous / Asynchronous: Yes / Yes
• Base48: x3
• Base44: x2
• Clock accuracy: <± 7 ppm
• Pull up/down: ±80ppm from any sample rate
• Word clock: Syncronize internal clock, and output any clock

Dante (Audio Network)

• Topology: Brooklyn 3
• Inputs (shared with AES 67): 8x
• Outputs (shared with AES 67): 8x
• Supported Sample Rates: 48 kHz, 96 kHz
• Casting: Unicast or Multicast
• Support Redundant paths: Yes, Dante Dual Redundancy (Glitch-free Dante audio Redundancy using dual Ethernet networks)
• Receiver latency: 0.25 ms, 0.5 ms, 1 ms, 2 ms, 5 ms
• Network: 4x 1000 Base-T / 100 Base-Tx (shared with AES 67)

AES67 (Audio Network)

• Topology Brooklyn 3
• Inputs (shared with Dante): 8x
• Outputs (shared with Dante): 8x
• Supported Sample Rates: 48 kHz
• Casting: Multicast
• Support Redundant paths: No
• Receiver latency: 1 ms
• Network: 4x 1000 Base-T / 100 Base-Tx (shared with AES 67)

AES50 (Audio Network)

• Interfaces: 2x AES50 interfaces
• Inputs: 24x channels can be individually selected out of up to 96 channels
• Outputs: 24x channels
• Supported Sample Rates: 48 kHz, 96 kHz
• Support Redundant paths: Yes, via Mirror mode using both AES50 interfaces

GPI

• Inputs: 4x General Purpose Inputs (GPI) supporting external contact closure
• Software configurable input control: Standby state, Mute state, Dual preset recall, Scene preset recall, Force input router prio

Device presets

• Frame presets: 100
• Scene presets: 10

Power supply features

• Mains connectors: 2x Locking IEC
• Universal: Yes
• Semless continued operations if mains lost on one PSU: Yes

Power requirements

• Nominal Voltage: 100-240VAC
• Operating Voltage: 90-264 VAC
• Power consumption: 75 W maximum

Backpanel Interface

• Analog inputs and outputs: 8x8 XLR
• AES3 inputs and outputs: 4x4 XLR for 8x8 AES3 channels
• Ethernet (Dante, AES67 and Control): Auto 100/1000, Auto uplink, 3x RJ45 connectors
• Ethernet with PoE+: Auto 100/1000, Auto uplink, 1x RJ45 connectors with PoE+ (802.3at) out
• AES50: 2x RJ45 connectors
• GPI: GPI via 1x RJ45 connectors
• Word Clock Input and output: 2x female BNC with selectable termination on input
• Power: 2x Detachable Locking 3-pin IEC
• Control and monitoring interface: Ethernet for Lake Controller software, or DLM (the 3rd Party Protocol)
• Cooling: 2x fans, front-to-rear airflow

Physical

• Dimensions (WHD): 19 x 3.50 x 16 inches
• Weight: 14.6 lbs
• Finish: Black painted steel chassis with alumimum handles
• Approvals: CE, NRTL (ANSI/UL 62368-1 & CSA C22.2#62368-1), FCC, ICES, PSE, UKCA, RCM
• Warranty: 3 years, componants and factory workmanship; see full warranty statement