Facebook update - it looks like Leszek is listening to feedback. The work that goes into these, man. Amazing.
'Works on WB-100 tube heads are underway. In 7-10 days, the first copies of the latest series will appear. We have made minor changes to the appearance of the case, nuances and levels that affect the overall sound of the head have been calibrated. We have improved the signal level at the Line Out output. We corrected the signal level on the third tube in the preamplifier.
These works were purely cosmetic, more for decency than to improve sound.'
https://www.facebook.com/HandBoxAudio/posts/pfbid0FVbWoMxgJtQhmdXVruGtNUsMPxfzorNcxaN7xKM2Qup9KVKgAuYCC8Q8GbN6yU2Fl