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Lake Processing

The advanced technology of Lake Processing provides audio professionals with unparalleled power to shape and optimize sound in a variety of environments. Regardless of the make or type of loudspeaker system, the venue size or acoustics, or the program material, Lake Processing will help you create a more consistent sound with less time and hassle in system set-up.

The LM Series devices contain two full-featured Lake Processor contour modules, each offering precise settings for gain, delay, crossover slope, equalization, and limiting. Exclusive Lake Processing algorithms are included for Raised Cosine input Equalization with Mesa EQ. The LM Series also incorporates Analog input and output Iso-Float ground isolation, a cost-effective and audibly superior alternative to isolation transformers.

Input EQ

The Input EQ incorporates the Lake first raised cosine Mesa EQ, that gives sound engineers a faster, more effective optimization tool – one that can truly match the asymmetrical responses of loudspeakers. While other processors provide standard symmetrical boost and cut functions, the Mesa EQ offers asymmetrical filtering, with the ability to separate the sides of a parametric section, change center frequencies, and independently adjust slopes.

Classical Crossovers

Bessel, Butterworth and Linkwitz-Riley crossovers are provided, selectable up to 48 dB per octave. The crossover interface also allows you to quickly add low shelf, high shelf, and parametric filters to each output. These filters use the latest in digital signal processing technology, maintaining their symmetrical shape at high frequencies.

Linear Phase Crossovers

Linear phase crossovers are another feature separating Lake Processing technology from ordinary processors. Linear phase crossovers can match traditional crossover slopes, such as 24 dB per octave and 48 dB per octave, when desired. But they are also capable of transition slopes exceeding 180 dB per octave.

These slopes offer dramatic benefits when applied to various types of loudspeaker arrays. Off-axis lobing and cancellation between loudspeakers are dramatically reduced. Greater control over slopes means that different speaker cabinet types can be more easily mixed and matched. Also, a loudspeaker's impulse response is significantly improved, providing a time-coherent wavefront.

Additionally, improvements of up to 3 dB or more in acoustic output power may be expected in some frequency ranges.

LimiterMax & Iso-Float

LimiterMax is a significant advancement in limiter technology, combining an exclusive true-RMS limiter, an advanced peak limiter capable of instantaneous attack time (adjustable by the user), and sophisticated signal processing.

Iso-Float Ground Isolation: A Better Way to Avoid Ground Loops.
Iso-Float technology combines the benefits of transformer-coupled isolation with the advantages of clean, direct-coupled inputs.

In the Lake processor input section, the audio converters are galvanically isolated, and not connected to the main ground. High-speed transformers and opto-isolators create a barrier between the processor and possible grounding aberrations from the outside electrical environment.

Additionally, you can change the grounding of any input or output remotely through the Lake Controller software interface.

While isolation transformers are typically an expensive option for many processors, Iso-Float is standard in the LM Series devices.

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Lake has long been at the forefront of networked audio devices, with the Lake Contour being one of the First Ethernet controlled audio processors. We were also one of the first manufacturers to license Audinate's Dante digital audio networking protocol – with the award-winning PLM Series in 2007 being the second product with Dante, now an industry standard for professional audio-over-Ethernet. The Lake LM Series is fully compatible with other compatible Lake devices such as the PLM, PLM+, D Series Lake and Yamaha MY8-Lake with precision control in Lake Controller, which can group all different Lake products, create system files which are easy to recall to come back to a known state for a complete system. The LM Series also integrates perfectly the Dante Controller. They feature two Gigabit Ethernet ports, which can be configured either in Switch mode, making it possible to daisy chain and control multiple LM or Lake devices without any need for an external switch - or be set to Dual Redundancy making it possible to transmit and receive Dante audio over two different networks where if one source goes down, the device will seamlessly switch to the other network without any audio interruption.