Since 1983, SPL has been pioneering audio equipment for music, film, and broadcasting, driven by innovation over convention. They are known for breakthrough technologies like the patented Vitalizer® sound optimization, Transient Designer, and the 120V operational amplifier. Other innovations include the Phonitor Matrix for headphone-based mixing and a 5.1 surround microphone system. By constantly pushing the limits of technology and design, SPL creates distinctive audio products that stand apart from mainstream offerings.