This is a recent review that I would like to share.
"Mid this year 2019, I built my first SET amp. It was months in the making and lots of patience and hard work. I was very happy with the results. Being it a 300B based SET amp at 8wpc, I needed a sensitive set of speakers to go with them. CUSTOM design was in my mind already having good experience amd satisfaction in making my amp. This is where I saw Joseph on one of his Youtube Videos. I was very happy to know that he was not that far from me. We emailed him back and forth until we reached the design that I wanted. Amazing skill, both on technical skills and hands. A lot of patience too with the changes that came along the way. This was my first Custom speaker and it is the best speakers I ever had. I have tried countless of speakers in my system. I even have a friend who came by who has a 40K speaker told me he likes mine better. I decided to use his ES 600 on top of the Onken Cabinets. Im using all RCF drivers on this build. Joseph designed the crossovers too. I am so so so happy of the outcome. No listening fatigue. Clarity and resolution is top notch. Now im enjoying these beauties. In my opinion these speakers would compete well in quality with the top high end commercial offerings out there which cost way way more. And by the way, most of all, he is a very good guy to deal with. Fair, patient and willing to do extra mile to get things right and make you happy and satisfied. Mike