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SL Sound

Polish professional sound reinforcement, stage technology and recording studio company founded in 1992 by Sławomir Łosowski.

Last updated September 27, 2026

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Overview

SL Sound is a Polish company specialising in professional sound reinforcement, stage technology and recording services. It was founded in 1992 by Sławomir Łosowski, a composer, music producer, keyboardist and leader of the Polish band Kombi. The company is based in Gdańsk and operates throughout Poland, providing technical support for concerts and events featuring both Polish and foreign artists. SL Sound's core activity is live sound reinforcement, complemented by stage lighting, stage construction and full technical event production. The company works on large open-air events as well as intimate concerts in small halls, and it maintains its own recording facility, SL Studio. Its equipment inventory is built around high-quality systems such as Nexo loudspeakers and Midas Pro, Allen & Heath and Yamaha mixing consoles. The studio records artists across genres, from classical through jazz, pop and rock, and offers services such as piano recording and live-in-the-studio sessions. SL Sound is a member of the Polish Chamber of Stage Technology (Polska Izba Techniki Estradowej, PITE). With more than three decades of experience, it presents itself as a provider of experienced sound engineers and stage technology specialists who can meet the technical riders of bands and solo artists. The company also collaborates with firms specialising in laser and pyrotechnic shows. In addition to its event-technology business, SL Sound has been described as a Polish record label, reflecting its connection to music production and its in-house SL Studio. The brand remains active and privately held, associated with its founder Sławomir Łosowski.

History

SL Sound was founded in 1992 by Sławomir Łosowski, a Polish composer, music producer, keyboardist and leader of the band Kombi. The company was established in Gdańsk, where it remains headquartered, and from the outset focused on professional sound reinforcement for live events. Over the following decades it expanded its scope to include stage lighting, stage construction and complete technical event production, serving both large open-air festivals and smaller concert venues across Poland. The company also developed its own recording facility, SL Studio, which records artists across a wide range of genres including classical, jazz, pop and rock. SL Sound has worked with Polish and foreign artists and is a member of the Polish Chamber of Stage Technology (Polska Izba Techniki Estradowej, PITE). Its equipment inventory includes Nexo loudspeaker systems and Midas Pro, Allen & Heath and Yamaha mixing consoles. In addition to its event-technology operations, SL Sound has been catalogued as a Polish record label, reflecting its involvement in music production through its studio and its founder's musical background.

  • 1992

    SL Sound founded in Gdańsk by Sławomir Łosowski.

  • Company becomes a member of the Polish Chamber of Stage Technology (PITE).

  • SL Studio recording facility established as part of SL Sound.

Products and positioning

Professional, experienced provider of sound reinforcement, stage technology and recording services, serving both large open-air events and intimate concerts across Poland.

  • Live sound reinforcement

    Professional sound reinforcement for concerts and events, using Nexo systems and Midas Pro, Allen & Heath and Yamaha consoles.

  • Stage lighting

    Event and concert lighting according to artist riders and client requirements, in cooperation with laser and pyrotechnic specialists.

  • Stage construction

    Provision of stages of various sizes for outdoor and indoor venues.

  • SL Studio recording services

    Recording facility for classical, jazz, pop and rock artists, including piano recording and live-in-the-studio sessions.

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