• 300B amplifier by Mastersound
• Picture courtesy of German ditributer: Friends of Audio

• 520B amplifier by www.tubesusa.com
• 2x 25 Watt Single Ended Triode

• Jota by Art Audio

• Sati by Horning Hybrid Danmark

• WE-91A by www.tubesusa.com

• EML 274B used in All -Tube stabilized power Supply. 
  Product by Kouei Corporation Japan

• Retro Style RM-245 amplifier by Music Reference

• 300B-XLS used by Walton Audio, Ireland

• EML 45 used by Electronluv, USA

Moth Audio, USA

45 Single Ended SPECS

• ERAUDIO, RUSSIA, using the520B-V2  in the model ER520-SE

• DHTSound,  Korea, using the 300B