Letter O — Brands

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oBravo is a Taiwanese maker of earphones and headphones, founded in 2006 and operated as a trading name of Stymax International. It is known for putting tweeter technologies borrowed from loudspeakers, a planar magnetic element and an Air Motion Tran...

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Ocean Way Audio is an American maker of studio monitors and large monitoring systems, run by recording engineer and studio owner Allen Sides. The name goes back to his first studio, a garage near Ocean Way in Santa Monica, California, and the speaker...

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Octave Audio is a German maker of tube amplifiers, run by Andreas Hofmann and based in Karlsbad in Baden. The company builds valve electronics, covering preamplifiers, power amplifiers, integrated amplifiers, single-ended designs and phono stages, al...

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Odeon Audio is a German maker of horn loudspeakers based in Haltern am See in North Rhine-Westphalia. Its roots go back to ARS, a company Alex Gersdorff founded in 1987 in Recklinghausen to build products for studio and high-end use. The brand is kno...

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Oehlbach is a German maker of cables and accessories for hi-fi, home cinema and multimedia, headquartered in Cologne. Its story began in 1974, when Manfred Oehlbach and his wife Gabriele started out on a small farm in Baden with three speaker cables....

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OePhi, set up in Denmark in 2021, is the speaker company of Joakim Juhl, a former research fellow at Harvard University. The company builds passive two-way and 2.5-way speakers by hand in Copenhagen and organises them in a five-tier range, from the L...

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OLLO Audio is a Slovenian maker of studio headphones, founded by musician and audio engineer Rok Gulič together with Mitja Sajovic. The company grew out of headphones Rok built for his own home studio, first prototyped in 2016 in his father's garage,...

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Omega Audio Concepts is an Italian maker of complete hi-fi systems based in Colle Umberto, in the province of Treviso. The company was formed in 2013, but its work goes back to 2001, when Renato Filippini designed his first loudspeaker, and its first...

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Oneiros Audio is a British high-end loudspeaker brand from Oxford, launched by Jerry Bloomfield, chief executive of Falcon Acoustics. Its first and only product is the Oneiros, a three-way floorstanding speaker unveiled at a private event in New York...

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OneOdio is a Chinese headphone brand based in Shenzhen, Guangdong, that sells affordable wired and wireless headphones for DJs, home studios and everyday listening in more than 30 countries. Its range runs from simple monitor headphones to hybrid noi...

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OnePlus is a Chinese consumer electronics company founded in Shenzhen on 16 December 2013 by Pete Lau and Carl Pei, both former Oppo executives. Smartphones are its main business, and around them it has built a family of wireless audio products, from...

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ONIX is a hi-fi brand that began in Brighton, on the south coast of England, in the 1980s and is now owned by the Chinese audio maker Shanling, which reserves it for its most expensive digital components. Today the name is attached to SACD and CD tra...

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Onkyo is a Japanese audio and home theatre brand founded in Osaka in 1946 by Takeshi Godai as Osaka Denki Onkyo, a name shortened to Onkyo, meaning sound harmony, in 1971. It is known above all for AV receivers for home cinema. The original company w...

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ONIX is a digital audio brand with English origins in Brighton in the 1980s, now run as the upper-tier label of the Shenzhen maker Shanling. Its current catalogue concentrates on transports, streamers and DACs rather than amplifiers or speakers. Ran...

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Opera Loudspeakers is an Italian speaker maker founded in 1989 in Treviso, in the Veneto region near Venice, by Giovanni Nasta. It is a family company that builds standmount and floorstanding loudspeakers by hand, with leather-covered front baffles a...

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Opera Loudspeakers is a speaker workshop from Dosson di Casier in the province of Treviso, building passive hi-fi speakers since 1989. The brand grew out of Giovanni Nasta's love of music, and its identity rests on traditional cabinet work in fine wo...

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Operly is a German horn loudspeaker maker based in Düsseldorf, known for a single wideband floorstanding model, the Intelligence III. It is a small specialist company rather than a broad hi-fi brand, and it reached the UK market in 2023 with a dedica...

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Ophidian Audio is a UK speaker firm started in 2011 by designer Gareth James, who brought more than 25 years of loudspeaker design experience to it. The firm set out to build compact speakers that perform beyond their physical size, and its range now...

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OPPO Digital was the audio and video arm of the Chinese electronics company Oppo, set up in 2004 in California to sell disc players, headphones and amplifiers to Western buyers. It became known for universal Blu-ray players that also handled SACD and...

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Oracle Audio Technologies is a Canadian maker of turntables and analogue components based in Sherbrooke, Quebec, with roots going back to 1979, when its Delphi turntable first appeared. Its name rests on suspended sub-chassis record players with expo...

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Orange Amplifiers, trading as Orange Amplification, is a British maker of guitar and bass amplification founded by Clifford Cooper in London in 1968. The company began building amplifiers after equipment suppliers refused to stock his West End music ...

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Orchard Audio is a US company producing amplifiers and digital source components, which was founded in 2017 by electrical engineer Leonid (Leo) Ayzenshtat. The company is known for compact power amplifiers whose output stages use gallium nitride (GaN...

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Orpheus Lab is a Swiss company building high-end disc players and amplifiers, founded in 2001 and still family owned. It grew out of Anagram, a company that developed digital converters, and takes its name from Orpheus, the bard of Greek mythology. T...

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Ortofon is a Danish maker of phono cartridges and styli, founded in Copenhagen on 9 October 1918 by engineers Axel Petersen and Arnold Poulsen. It started as the Electrical Phono Film Company, working on synchronising sound with film, and describes i...

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OSD Audio is an American home audio company founded in 2003 and based in Brea, California. A group of audio enthusiasts started it with a small line of outdoor rock speakers sold at reasonable prices, and it later grew into a broad catalogue of speak...

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Oswalds Mill Audio (OMA) is an American maker of horn loudspeakers, tube amplifiers, turntables and tonearms, founded in 2007 by filmmaker Jonathan Weiss in New Tripoli, Pennsylvania. The company grew out of the Oswalds Mill Tube and Speaker Tasting,...

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OTTA, short for Over The Top Analogue, is a young phono cartridge brand launched in 2024 and handmade in Germany. It is a joint project of two distributors, Philip O'Hanlon of California-based On a Higher Note and Eckhard Derks of TCG Handels GmbH in...

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Outlaw Audio is an American direct-sale maker of power amplifiers, receivers, processors and subwoofers, based in Massachusetts. A group of audio industry design and manufacturing veterans formed the company in 1998 and began selling in 1999, betting...

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OXS Audio is a consumer audio brand focused on gaming and home cinema sound, selling soundbars, speaker systems and wireless headsets through its own online store and large retailers. Its products target PC and console players more than traditional h...