Dear @soundcheck6 : As the tonearm ( more on this latter-on. ) this Phonolinepreamp was a unit for our personal use ( José and I. ).
I was who had the inquisitiveness to design and build a Phonolinepreamp due that the best units in the market as: FM Acoustics, Krell, Gryphon, ML, etc, etc. ( including top tube electronics that I owned or listened. ) and that I already listened in my system and other systems in reality did not satisfied totally my high demanding needs and of course the cartridge needs.
I talk with José and shared what I was thinking about and I writed the main characteristics that we analized and that he enhanced too. Voicing was made by both of us but mainly for me that owns a very good system and with several audio friends to listen our unit there that was what I did it.
Btw, @lewm appreciated your posts in reference to this phonolinepreamp and its quality level even that the unit you own, the Essential 3160, has not the up-grades made for me in my sample that I name it: Essential 3180 that it's even better quality performance level than your excellent unit.
How is that over the years Lewm owns the 3160 when was a unit designed and builded by us for our personal use?
Well, that gentleman in the link you posted knew that I was with Jose making that phonolinepreamp and with out been in touch with him ( as a fact I even did not know him or " hear " nothing about him any where. ) I received his first email asking if we can make a unit for him and I answered that we can't do it because we are not an audio comercial company but only two music lovers trying to improve our listening LP sessions at home.
He insisted and after 3 in a row emails José and I decided to accept build a unit for him and I told him that we will take around 6-8 months to delivery his unit and that needs to pay 60% of the total unit price in advance and he did it/accepted and that's how started to build some units. Btw, we took more than those 8 months to made it and delivery his unit even than he paid the total price in advance with out " knowing " really whom we are. He lives in England.
Through the time we made some changes that some way or other we already tested before during the voicing of the unit.
I live in México city and I had the opportunity to show the Essential units in USA to over 20 gentlemans at their places that some way or the other were a voicing tests for our unit. From those 20+ gentlemans only one of them owned SS electronics all the other gentlemans were tube lovers.
By coincidence the seven Essential owners only one used SS electronics the other ones tubes and by coincidence with the first customers the other owners were who put in touch with me with out I knew of their " existence ". All paid a % in advance and all satisfied with the unit as Lewm.
We stopped to accept orders due that that was not our way of living and the unit manufacture is way way demanding on time for us and care of it to achieve the quality levels we knew the design can meet.
My own unit can competes and it's a real challenge for any unit in the today market at any price.
Can we start/begin again with? I don't think so. Is very expensive to do it in every way. To do it we will need it a whealthy investor that really like this hobby and a gentleman where we can share with him and in between our high demanding targets of quality.
R.