 | |
| Type | Privately held company |
|---|---|
| Industry | Audio electronics |
| Founded | 2004 |
| Headquarters | , |
Key people | Franci Pavlin, Ales Dravinec |
| Products | Concert loudspeakers |
| Website | http://www.adraudio.com/ |
ADRaudio is a manufacturer of high-end concert loudspeaker systems based in Novo Mesto, Slovenia. They offer a wide range of self-powered products with internal all-analog processing, as well as rackmount signal processors for system integration.
EONA ADRaudio was started by General Manager Franci Pavlin and Chief Engineer Ales Dravinec in 2004.
At the 125th AES Convention in San Francisco in 2008, Dravinec joined veteran loudspeaker designers Charlie Hughes (formerly of Altec Lansing and Peavey Electronics), Dave Gunness (formerly of Eastern Acoustic Works and Electrovoice), Pete Soper (of Meyer Sound Laboratories), Ralph Heinz (of Renkus-Heinz) and Tom Danley (has designed for Servodrive, Yorkville Sound, Danley Sound Labs) in a panel discussion, moderated by industry veteran Tom Young, to share thoughts about the art of loudspeaker design in the application of live sound reinforcement. [1] [2] Not certain he would be able to appear at a follow-on seminar in New York City in October 2009, Dravinec declined to add his name to the pre-event announcement. Nonetheless, he appeared as a last minute panelist and rejoined Young, Gunness and Hughes as well as speaker designer Doug Jones, representing Danley Sound Labs. [3]
Jamie Taylor, Managing Director of Australian Event Productions, signed on as the Asia-Pacific distributor in 2008. During the ENTECH trade show in Sydney that year, Pavlin, Dravinec and Prescott came to exhibit the product line. [4] Of the M1225 monitor wedge, Taylor said it "is very loud, yet sounds very well-rounded, and I can pick it up without breaking a sweat! I used these exact wedges on a national level touring band recently, and they nearly tried putting them in their van at the load out!" [5]
In 2018, ADRaudio helped recreate the Grateful Dead's Wall of Sound speaker system for the Grateful Dead tribute act Dead on Live. Jason Dermer of Asbury Audio in New Jersey put the sound system together using five ADRaudio L2821 line array enclosures for each instrument in the band. [6]
A subwoofer is a loudspeaker designed to reproduce low-pitched audio frequencies known as bass and sub-bass, lower in frequency than those which can be (optimally) generated by a woofer. The typical frequency range for a subwoofer is about 20–200 Hz for consumer products, below 100 Hz for professional live sound, and below 80 Hz in THX-certified systems. Subwoofers are never used alone, as they are intended to augment the low-frequency range of loudspeakers that cover the higher frequency bands. While the term "subwoofer" technically only refers to the speaker driver, in common parlance, the term often refers to a subwoofer driver mounted in a speaker enclosure (cabinet), often with a built-in amplifier.
A sound reinforcement system is the combination of microphones, signal processors, amplifiers, and loudspeakers in enclosures all controlled by a mixing console that makes live or pre-recorded sounds louder and may also distribute those sounds to a larger or more distant audience. In many situations, a sound reinforcement system is also used to enhance or alter the sound of the sources on the stage, typically by using electronic effects, such as reverb, as opposed to simply amplifying the sources unaltered.
A horn loudspeaker is a loudspeaker or loudspeaker element which uses an acoustic horn to increase the overall efficiency of the driving element(s). A common form (right) consists of a compression driver which produces sound waves with a small metal diaphragm vibrated by an electromagnet, attached to a horn, a flaring duct to conduct the sound waves to the open air. Another type is a woofer driver mounted in a loudspeaker enclosure which is divided by internal partitions to form a zigzag flaring duct which functions as a horn; this type is called a folded horn speaker. The horn serves to improve the coupling efficiency between the speaker driver and the air. The horn can be thought of as an "acoustic transformer" that provides impedance matching between the relatively dense diaphragm material and the less-dense air. The result is greater acoustic output power from a given driver.
Rudolph Thomas Bozak (1910–1982) was an audio electronics and acoustics designer and engineer in the field of sound reproduction. His parents were Bohemian Czech immigrants; Rudy was born in Uniontown, Pennsylvania. Bozak studied at Milwaukee School of Engineering; in 1981, the school awarded him an honorary doctorate in engineering. Bozak married Lillian Gilleski; the two had three daughters: Lillian, Mary and Barbara.
A loudspeaker enclosure or loudspeaker cabinet is an enclosure in which speaker drivers and associated electronic hardware, such as crossover circuits and, in some cases, power amplifiers, are mounted. Enclosures may range in design from simple, homemade DIY rectangular particleboard boxes to very complex, expensive computer-designed hi-fi cabinets that incorporate composite materials, internal baffles, horns, bass reflex ports and acoustic insulation. Loudspeaker enclosures range in size from small "bookshelf" speaker cabinets with 4-inch (10 cm) woofers and small tweeters designed for listening to music with a hi-fi system in a private home to huge, heavy subwoofer enclosures with multiple 18-inch (46 cm) or even 21-inch (53 cm) speakers in huge enclosures which are designed for use in stadium concert sound reinforcement systems for rock music concerts.
Meyer Sound Laboratories is an American company based in Berkeley, California that manufactures self-powered loudspeakers, multichannel audio show control systems, electroacoustic architecture, and audio analysis tools for the professional sound reinforcement, fixed installation, and sound recording industries.
LARES is an electronic sound enhancement system that uses microprocessors to control multiple loudspeakers and microphones placed around a performance space for the purpose of providing active acoustic treatment. LARES was invented in Massachusetts in 1988, by Dr David Griesinger and Steve Barbar who were working at Lexicon, Inc. LARES was given its own company division in 1990, and LARES Associates was formed in 1995 as a separate corporation. Since then, hundreds of LARES systems have been used in concert halls, opera houses performance venues, and houses of worship from outdoor music festivals to permanent indoor symphony halls.
John Meyer is a pioneer in the sound reinforcement industry. In 1979 he founded Meyer Sound Laboratories with his wife, Helen Meyer.
Crown International, or Crown Audio, is an American manufacturer of audio electronics, and is a subsidiary of Harman International Industries, which has been part of South Korea-based Samsung Electronics since 2017. Today, the company is known primarily for its power amplifiers, but has also manufactured microphones, loudspeakers, and a line of commercial audio products, as well as digital audio networking products.
Live event support includes staging, scenery, mechanicals, sound, lighting, video, special effects, transport, packaging, communications, costume and makeup for live performance events including theater, music, dance, and opera. They all share the same goal: to convince live audience members that there is no better place that they could be at the moment. This is achieved through establishing a bond between performer and audience. Live performance events tend to use visual scenery, lighting, costume amplification and a shorter history of visual projection and sound amplification reinforcement.
Yorkville Sound is a Canadian manufacturer of audio amplifiers, loudspeakers and related professional sound reinforcement equipment. Based in Pickering, Ontario, Canada, the firm has a global presence as an importer and exporter of audio electronic products.
An audio engineer helps to produce a recording or a live performance, balancing and adjusting sound sources using equalization, dynamics processing and audio effects, mixing, reproduction, and reinforcement of sound. Audio engineers work on the "technical aspect of recording—the placing of microphones, pre-amp knobs, the setting of levels. The physical recording of any project is done by an engineer... the nuts and bolts."
Dan Dugan is an American audio engineer, inventor, and nature sounds recordist. He was the first person in regional theatre to be called a sound designer, and he developed the first effective automatic microphone mixer: the automixer. Dugan's sound design work was acknowledged in 2003 with a Distinguished Career Award by the United States Institute for Theatre Technology, and in 2020 with an Emmy Award for technology relevant to remote working. In 2021 he was awarded Fellowship in the Audio Engineering Society.
McCune Audio Video Lighting is an American company based in South San Francisco, California, with offices in Monterey and Anaheim. It is one of the oldest and largest audio visual rental and sound services in the U.S. McCune was founded in 1932 by Harry McCune Sr, McCune AVL provides audio, lighting and high-definition video services to events as varied as outdoor festivals such as the Monterey Jazz Festival, and the Bohemian Grove, and to arena conferences such as TED.
David W. Gunness is an American audio engineer, electrical engineer and inventor. He is known for his work on loudspeaker design, especially high-output professional horn loudspeakers for public address, studio, theater, nightclub, concert and touring uses.
Cliff Henricksen is a musician, inventor and audio technologist. He is self-taught as a musician with a graduate degree in mechanical engineering at Massachusetts Institute of Technology (MIT). Throughout his career Cliff has found innovative ways to apply engineering basics to electro acoustics and to audio technology as it applies to music and in particular to live music performance. He has invented and engineered a wide variety of technologies and products well known in the world of professional audio. Today he balances work in audio and work as a performing musician.
Charles Emory Hughes II is an American inventor and audio engineer. He is known for his work on loudspeaker design, and the measurement of professional audio sound systems. Hughes first worked for Peavey Electronics designing loudspeakers and horns where he was granted a patent for the Quadratic-Throat Waveguide horn used in concert loudspeakers. He worked for Altec Lansing for two years as chief engineer for the pro audio division and was granted two more patents. In 2021, Hughes was hired by Biamp as principal engineer.
Thomas J. Danley is an American audio engineer, electrical engineer and inventor, the holder of multiple patents for audio transducers, especially high-linearity, high-output professional horn loudspeaker systems. Danley first gained notice in the 1980s with his novel servomotor-driven subwoofer systems used to reproduce very low frequencies in concert tours and theme parks. In 2000 he advanced the implementation of multiple-entry horns in 2000 with several designs led by the SPL-td1, a seven-driver loudspeaker. In 2005, he started a new company, Danley Sound Labs, through which he patented further technologies and produced a wide variety of loudspeaker models based on these technologies.
In a loudspeaker, power compression or thermal compression is a loss of efficiency observed as the voice coil heats up under operation, increasing the DC resistance of the voice coil and decreasing the effective available power of the audio amplifier. A loudspeaker that becomes hot from use may not produce as much sound pressure level as when it is cold. The problem is much greater for hard-driven professional concert systems than it is for loudspeakers in the home, where it is rarely seen. Two main pathways exist to mitigate the problem: to design a way for the voice coil to dissipate more heat during operation, and to design a more efficient transducer that generates less heat for a given sound output level.
Robert Vernon Cavin is an American audio engineer who built the first monitor mixing console, the first multi-angle monitor loudspeaker, and the first integrated processing/amplifier package for a 3-way loudspeaker. He was chief engineer of McCune Sound in San Francisco in the 1970s, and also vice president in the 1980s. In 1992 he accepted the chief engineer position at Apogee Sound where he designed the DA Series Class-H digitally controlled amplifier, winning the 1994 TCI Product of the Year Award. In 2000 he joined Furman Sound, and designed an interface system for Smaart users, and a new power conditioning system. Cavin's electronic designs were nominated five times for TEC Awards, in 1994, 1995, 1997, 1999 and 2001.