MAGAZINE
Thanks to the new way of production, the required manufacturing conditions are supposed to be met more precisely than before. This is supposed to lead to a greatly extended lifespan and an even more dynamic sound.
Each tube undergoes a 72-hour computer-controlled testing process which is finished by a final round of measurements, and each tube is supplied with its own data sheet. Based on this final inspection, a "matched" pair is assembled.
In initial listening comparisons between these tubes and a Western Electric NOS pair as well as tubes from other manufacturers, the new 300Bs are said to have produced a more airy and spacious sound image that also possessed more power and dynamics than the NOS tube.
