H.J. Leak & Co, founded in 1934 by Harold Joseph Leak, became a pioneer in audio engineering, introducing innovations like the iconic "Point One" amplifier and the LEAK Sandwich speaker. Known for high-fidelity amplifiers, turntables, and loudspeakers, LEAK revolutionized home audio throughout the 20th century. After decades of innovation, the brand was acquired by Rank Organization in 1969. In 2020, LEAK was relaunched by IAG Group, bringing back its art-deco style with modern products like the LEAK Stereo 130 and the LEAK CDT.