On Stage Audio Expands, Builds North America’s Largest Martin Audio MLA Inventory

With three locations in Chicago, Las Vegas and Nashville and a hectic schedule of live production work, corporate shows, product launches, TV broadcasts and special events; On Stage Audio (OSA) continues its national growth in audio rentals, service and production.

As part of that growth, OSA recently purchased a number of additional Martin Audio MLA and MLA Compact enclosures, resulting in OSA having the largest MLA inventory in North America. With this and other recent sales, the total number of MLA cabinets deployed worldwide is well over 3,000 cabinets at this point.

Asked about the MLA acquisition, OSA Vice President Jim Risgin said, “We believe in the product, technology and, most importantly, the result that MLA delivers.”

In addition to successful deployments of MLA and MLA Compact at a growing number of corporate and special events, OSA recently equipped the pavilion stage at Ravinia Festival with the MLA system, the first new PA system at North America’s oldest music festival in a decade. Ravinia welcomes about 600,000 guests every summer to over 100 events, including the annual residency of the Chicago Symphony Orchestra. Since Ravinia’s 1904 inception, a residential neighborhood has grown around the concert venue resulting in Ravinia becoming increasingly sensitive to containing sound within its gates.

Asked why MLA was chosen, Jim responds, “Sound is crucial in two ways to outdoor concert presenters who not only want to provide the best musical experience they can to their attendees but who also want to prevent that music from reaching unintended listeners. We are proud Ravinia chose us to help them present a premium customer experience and to help them be a good neighbor to the residents of its home community.”

Expanding on his feelings about MLA, Jim points out, “It’s the first technology in the last 30 plus years that is truly delivering sound in a new and exciting way as far as I’m concerned. Even with the obvious benefits the Multi Cellular drive brings such as SPL control, consistent audience coverage as well as out of area rejection, it still amazes me how good it sounds every time I turn on the system. Simply input the room calculations and MLA in turn delivers the expected coverage as well as giving the engineer a stellar sonic canvas to work with. Now I can allocate my time to my craft and art of mixing rather than spending the time mastering conventional systems to gain similar results. The timesaving translates into both a better end product for our clients as well as savings in time and labor.

“In terms of its performance, MLA never runs out, it never stops. I think it’s the best sounding system with the most even coverage out of the box. Every seat gets the same high quality sound regardless of the location, which helps our clients reduce costs for acoustical treatments in some venues. At this point, the level of the MLA system control has become second nature. For me to work on something other than MLA has become an eye-opener rather than the other way around.”

For more about On Stage Audio, please click to www.osacorp.com

For more about Martin Audio, please click to www.martin-audio.com.

About MLA™ (Multi-cellular Loudspeaker Array)

The result of many years of intensive R&D, MLA’s methodology replaces trial-and-error array design with intelligent numerical optimization of the array’s output based on a highly accurate acoustic model. The multi-cellular format has six individual cells in each enclosure, each with its own DSP and amplification.

With up to 24 enclosures, each MLA array has up to 144 cells — too great a number to optimize manually, or by ear. Instead, Martin Audio’s proprietary Display2™ system design software automatically calculates FIR DSP filters for each cell and a redundant-ring audio network (U-NET™) downloads the settings into each array enclosure. Martin Audio’s VU-NET™ software provides real-time control and monitoring of the system.

MLA delivers a frequency response and SPL consistency never before achievable; a very high system output (140dB peak, per cabinet @1m); Automatic optimization of the array, both physically (splay angles) and electronically (DSP); Computer control and monitoring of the entire system, and total control of sound system balance for engineers and sound technicians.

MLA is fully integrated, with Class D amplification, DSP and U-NET digital audio

network built into each enclosure. MLA complete systems are ready-to-use, with MLA, MLD and MLX enclosures, flying hardware, software, cabling and training all supplied. Everything needed is included. All ancillary items — from tablet PC and Merlin™ controller to network interconnects and mains distro — are also included in the complete system package. This ensures full compatibility worldwide, down to cabling and accessories.

Additional features include 90° x 7.5° dispersion; a compact size (1136mm wide x 372mm high x 675mm deep), one-box-fits-all (festivals to theaters) application range and a global voltage, power factor corrected power supply.

MLA’s compact size and very high output allows it to be shipped using smaller trucks, offering considerable savings and reduced carbon footprint. The system also includes the MLX powered, flyable subwoofer capable of an unprecedented measured peak output of 150dB @ 1m; MLD downfill cabinet, and Merlin 4-in/10-out system controller and network hub. Audio input is via analog, AES3 or U-NET.

By adopting these principles and system components MLA is optimized for every member of the audience — from a 2,000 capacity theater, to a 20,000-seat arena, to a 100,000-person festival site. It will deliver the engineer’s exact mix to every seat (up to over 150 meters) with precision, exceptional power and clarity.

About Martin Audio®

Founded by audio engineer David Martin in 1971, Martin Audio pioneered the use of all-horn-loaded bass designs in world-class touring loudspeaker systems for groups such as Pink Floyd, ELP and Supertramp. Located outside of London, Martin Audio now embodies a sophisticated mix of acoustic design, research, mathematical modeling and software engineering for a wide range of products in the installation, cinema and touring sound markets.