The Lake Mesa Quad EQ, a new 4x4 digital matrix processor designed for stand-alone or networked concert sound, recording, mastering and broadcast applications, incorporates the same advanced DSP-based equalization, delay and dynamics processing tools found in the Lake Contour digital speaker processor, including the asymmetrical Mesa Filter function. The Lake Mesa Quad EQ is also supported by the Lake Controller software Version 3.0.
In addition to shelving and parametric filters, all four discrete channels feature Lake's EQ Overlay processing, which may be configured to provide both Lake Mesa EQ Parametric Overlays™ and Ideal Graphic EQ™ Overlays. A virtually unlimited number of EQ filters may be implemented.
The asymmetrical filtering of the Lake Mesa EQ Parametric Overlay provides the ability to separate the sides of a parametric section, change center frequencies and adjust slopes independently. The raised cosine filters of the Ideal Graphic EQ Overlay sum flat to ensure that EQ controls precisely match response.
Additional processing includes fully adjustable true RMS and soft-clamp limiting on individual channels. Each channel provides adjustment of A/D input headroom and input/output gain, and a delay of up to 2,000 ms may also be introduced. Fast-updating, high-resolution meters indicate true RMS and peak levels with peak hold.
The Lake Mesa Quad EQ offers four independent channels of galvanically isolated 24-bit, 96kHz converters. As standard, each channel features an analog input and output and AES/EBU digital I/O. Inputs may be selected as digital or analog in pairs, with assignment of any combination of inputs to outputs handled by a 4x4 matrix. All eight outputs—four digital and four analog—are available simultaneously, allowing the unit to be used as a distribution matrix.