Atma-Sphere

1742 Selby Ave
Saint Paul, MN 55104

Atma-Sphere Music Systems, based in Saint Paul, MN, has been producing high-end vacuum tube amplifiers since 1976, specializing in Output Transformerless (OTL) technology. The company is recognized for its innovative circuit design, which has garnered multiple patents and awards, making it a leader in the audio industry.

Handcrafted to order, each amplifier and preamplifier is meticulously built with hand-selected components, ensuring exceptional musical performance and reliability. Atma-Sphere's products, including the legendary M-60 and the groundbreaking MP-1 preamp, reflect the company's commitment to excellence in audio reproduction.

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