Fosi Audio
Website:https://fosiaudio.com/
Est. year: 2017
Fosi Audio is a Chinese maker of compact amplifiers, DACs and related desktop hi-fi gear, founded in January 2017 by Ryan Huang in the Longgang district of Shenzhen. It started in a 10 square metre office with DIY audio boards and has grown into a brand sold in more than 150 countries through its own site, Amazon and AliExpress, best known for small class D amplifiers bought mostly online.
Range & what it's known for
The core of the range is small class D power and integrated amplifiers. The BT20A family, including the BT20A Pro, and the V3 use the Texas Instruments TPA3255 chip, and the ZA3 is a balanced design that can run in stereo or bridged mono. Several models accept user-replaceable op-amp chips, so owners can swap parts in the input stage. Around the amplifiers sit DACs, preamplifiers, headphone amplifiers, combined units such as the DA2120D amplifier with DAC, cables and accessories. The brand has also moved into loudspeakers with the DK560-N bookshelf model.
Who owns it and where it's made
Fosi Audio is the consumer brand of Shenzhen Foresight Technology Co., Ltd., a private company set up by Ryan Huang and a partner. Design, evaluation and listening tests take place at the Shenzhen headquarters, and production runs at a separate company-run manufacturing site in the same city. The firm reports more than 100 patents and an R&D centre of over 2,300 square metres, and it runs a separate brand for pro and DJ products.
The lineup in this catalog
Compact amplifiers and DACs, the brand's core products. The current range here costs between roughly USD 50 and USD 200 per unit.
Who it's for
Fosi Audio suits buyers putting together a first desktop or bookshelf system on a tight budget, or adding a small amplifier to a TV, computer or turntable. A BT20A is a typical starting point, with the V3 or ZA3 as the next step and a matching DAC or preamp added later. Its 24 month warranty and support from the maker make it a practical pick for people who buy without a local shop.