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Wall Audio Tube Technology is a prestigious German high-end audio equipment manufacturer founded approximately 30 years ago by Andreas Wall in Freiburg, specializing exclusively in meticulously handcrafted tube amplifiers and preamplifiers that embody pure Class-A design philosophy with no-feedback circuitry. Born in Poland with deep musical heritage—his father was a violinist for silent film orchestras and grandfather a violin builder in Graz, Austria—Andreas Wall immigrated to Germany in 1981 to study electronic engineering at Breslau University, where he earned his master's degree before establishing his audio company. Operating from Wöhlerstraße 2, D-79108 Freiburg, Wall Audio has earned recognition for over three decades through innovative modern tube concepts that produce integrated amplifiers, power amplifiers, phono amplifiers, and tube crossovers, all hand-assembled using only premium components including Mundorf capacitors, Vishay resistors, and pure silver ribbon insulated internal wiring. The company's product lineup includes flagship models such as the M33 SET, M50 PSET, M100, and comprehensive OPUS series (33 SET, 34, 88, 100 SYM, 110 PH, 120 PH), each representing Andreas Wall's unwavering commitment to authentic tube sound reproduction without compromise. Registered under HRB 925492 at Freiburg court, Wall Audio Tube Technology continues to represent the pinnacle of German tube amplification engineering, serving discerning audiophiles worldwide who appreciate the company's dedication to traditional craftsmanship combined with innovative circuit design, maintaining the company's founding principle of creating the purest possible tube amplification experience.