The Psvane ACME series (300B, 2A3, 845, 211, 805A, 274B) has been designed with the intention of surpassing the well-known classics in the world of tubes, no matter whether NOS or new production!
 
For decades, the designs and production of 1950s and 1960s tubes have been considered the benchmark and all new productions attempt to replicate them. Yet, today we have far better technical possibilities, new production technologies and materials are available.
The development and production of vacuum tubes is still a multidisciplinary and complex field.
More than 5 years of research and development have gone into the ACME series and the world's first tube structure developed with 3D design.
Patented hybrid anode design - A combination of graphite and mesh material used simultaneously for the first time in high power tubes (845, 211, 805) to achieve synchronised expansion even at a temperature of 600 degrees Celsius, while maintaining high emission capacity and stability.
Overhanging filament structure on the 300B, 274B and 2A3 models for very airy and high-resolution sound reproduction.
Vintage-style spherical glass cabinet on the 300B.
Teflon base with sandblasted aluminium cover - no fingerprints!
German solder for the pin connections and of course gold-plated contacts!