Brand: Audio research
The Audio Research LS-8 (mkI) is a high-end preamplifier that was produced by the American audio company, Audio Research Corporation, in the mid-1970s. The LS-8 was widely regarded as a significant advancement in audio technology due to its use of a fully balanced circuit design, which provided exceptional resolution, dynamics, and low-level detail.The mkI version of the LS-8 was the first American-built preamplifier with fully balanced output transformers. The design included dual-differential inputs, dual-differential signal paths, and high-quality components that delivered a clean, clear, and detailed sound. This preamplifier also featured variable loading options, allowing the user to customize the output impedance to match their amplifier and speakers.The LS-8 (mkI) was very popular among audiophiles during its production and remains highly sought after today. Its unique circuitry and high build quality have contributed to its status as a classic in the audio industry. In fact, Audio Research continues to manufacture preamplifiers that share the LS-8's design philosophy, including the fully balanced Signature Preamp and the LS28.