A subwoofer is a loudspeaker designed to reproduce low-pitched audio frequencies, known as bass and sub-bass, that are lower in frequency than those which can be (optimally) generated by a woofer. The typical frequency range that is covered by 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. Thus, one or more subwoofers are important for high-quality sound reproduction as they are responsible for the lowest two to three octaves of the ten octaves that are audible. This very low-frequency (VLF) range reproduces the natural fundamental tones of the bass drum, electric bass, double bass, grand piano, contrabassoon, tuba, in addition to thunder, gunshots, explosions, etc.
Robert Bosch GmbH, commonly known as Bosch, is a German multinational engineering and technology company headquartered in Gerlingen, Baden-Württemberg, Germany. The company was founded by Robert Bosch in Stuttgart in 1886. Bosch is 94% owned by the Robert Bosch Stiftung, a charitable institution. Although the charity is funded by owning the vast majority of shares, it has no voting rights and is involved in health and social causes unrelated to Bosch's business.
Audio power is the electrical power transferred from an audio amplifier to a loudspeaker, measured in watts. The electrical power delivered to the loudspeaker, together with its efficiency, determines the sound power generated.
Sennheiser electronic GmbH & Co. KG is a German audio equipment manufacturer headquartered in Wedemark. Sennheiser specializes in equipment for both the consumer and professional audio markets, including microphones, headphones, and loudspeakers.
A public address system is an electronic system comprising microphones, amplifiers, loudspeakers, and related equipment. It increases the apparent volume (loudness) of a human voice, musical instrument, or other acoustic sound source or recorded sound or music. PA systems are used in any public venue that requires that an announcer, performer, etc. be sufficiently audible at a distance or over a large area. Typical applications include sports stadiums, public transportation vehicles and facilities, and live or recorded music venues and events. A PA system may include multiple microphones or other sound sources, a mixing console to combine and modify multiple sources, and multiple amplifiers and loudspeakers for louder volume or wider distribution.
Quantum Corporation is a data storage, management, and protection company that provides technology to store, manage, archive, and protect video and unstructured data throughout the data life cycle. Their products are used by enterprises, media and entertainment companies, government agencies, big data companies, and life science organizations. Quantum is headquartered in San Jose, California and has offices around the world, supporting customers globally in addition to working with a network of distributors, VARs, DMRs, OEMs and other suppliers.
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.
JBL is an American audio equipment manufacturer headquartered in Los Angeles, California, United States. JBL serves the home and professional market. The professional market includes studios, installed/tour/portable sound, music production, DJ, and cinema markets. The home market includes high-end home amplification/speakers/headphones as well as high-end car audio. JBL is owned by Harman International, itself a subsidiary of Samsung Electronics.
Bang & Olufsen (B&O) is a Danish high-end consumer electronics company that designs and manufactures audio products, television sets, and telephones, originally from Denmark, founded in 1925 by Peter Bang and Svend Olufsen, who designed a radio to work with alternating current, a product of significance at a time when most radios were still running on batteries.
Bowers & Wilkins, commonly known as B&W, is a British company that produces consumer and professional loudspeakers and headphones. The company was founded in 1966 in Worthing, West Sussex, England. In October 2020, it was acquired by Sound United, a holding company who owns several other audio brands.
Harman International Industries, Inc., commonly known as Harman, is an American audio electronics company. Since 2017, the company has been operating as an independent subsidiary of Samsung Electronics.
Amadeus IT Group, S.A. is a major Spanish multinational technology company that provides software solutions for the global travel and tourism industry. It is the world's leading provider of travel technology that focus on developing software for airlines, hotels, travel agencies, and other travel-related businesses to enhance their operations and customer experiences.
QSC is an American manufacturer of audio, video and control products such as amplifiers, loudspeakers, cameras, video endpoints, and digital signal processors including the Q-SYS networked audio, video and control platform. QSC and Q-SYS products are used by audio and video professionals for commercial applications, including corporate, higher education, sports venues, themed entertainment, and cinema customers worldwide.
Renkus-Heinz is a California-based manufacturer of loudspeakers and related professional sound reinforcement equipment specializing in steerable loudspeaker technology. Based in Foothill Ranch, California, the firm has a global presence in permanent installations at auditoriums, transit centers, sports venues, houses of worship and musical performance venues as well as in the concert touring industry.
Rohde & Schwarz GmbH & Co KG is an international electronics group specializing in the fields of electronic test equipment, broadcast & media, cybersecurity, radiomonitoring and radiolocation, and radiocommunication. The company provides also products for the wireless communications, electronics industry, aerospace and defense, homeland security and critical infrastructures.
RIB Software SE is a Germany-based multinational company providing construction and building information modeling (BIM) software to customers in the architecture, engineering, and real estate industries. In 2020, it became a subsidiary of French multinational Schneider Electric.
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.
Enphase Energy, Inc. is an American energy technology company headquartered in Fremont, California, that develops and manufactures solar micro-inverters, battery energy storage, and EV charging stations primarily for residential customers. Enphase was established in 2006 and is the first company to successfully commercialize the solar micro-inverter, which converts the direct current (DC) power generated by a solar panel into grid-compatible alternating current (AC) for use or export. The company has shipped more than 48 million microinverters to 2.5 million solar systems in more than 140 countries.
Clair Global, or simply Clair, is a professional sound reinforcement and live touring production support company. It was founded by brothers Roy and Gene Clair, who went into business in 1966 after they were asked to bring their sound system on tour with Frankie Valli and the Four Seasons. It is believed they were the first professional sound company to tour with a band. The company formally incorporated in 1970 as Clair Bros. Audio Enterprises, Inc.
K-array is an Italy-based manufacturer of loudspeakers and amplification products for the professional audio market. K-array’s products are sold in over 50 countries around the world, and have been used in a variety of environments including major concert tours, cathedrals, stadia, theatres, restaurants and hotels.
