On January 12, 2026, Dan D'Agostino Master Systems welcomed some 52 international audio dealers and distributors, and four members of the audio press, to the unveiling of the new Momentum Z mono amplifier ($125,000/pair) at the company's factory in Cave Creek, AZ. This 15th Anniversary event included an extended description of the product and a factory tour.
Octave Audio of Karlsbad, Germany, a longtime manufacturer of tube electronics, presented the North American debut of its new Octave Jubilee Class A mono amplifier ($85,000/pair) at Definitive Audio, Bellevue (across the lake from Seattle) on January 29. The first stop in a three-city US tour by Andreas Hofmann, company president and designer, and John Quick, VP Sales & Marketing for Octave's US distributor, Dynaudio North America, the multi-day event included two back-to-back sessions followed by open houses.