All of your opinions on phono stages are valid, I posted my comments because regardless of the phono stage chosen, cables play a big role in the total performance package and should not be ignored.
Does anyone really think the Boulder phono would work just as well with the blister pack RCA's provided with a $149.00 DVD player? Can you imagine a Koetsu, Benz, ZYX, Denon or any other high end, low output moving coil cartridge passing through China blister pack cables from your turntable to the Boulder phono stage ?
Anyway I thought the designers comment, which was made with a sneer and in anger, was totally vulgar especially coming from high end company that charges what it does for their equipment.
As for performance differences between these various phono stages, I have not heard the DarTZeel that Mike enjoys. I do agree the Lamm and Steelhead are great products, I have auditioned both of them and prefer either over the Boulder.
That being said, the latest version Aesthetix IO Signature with dual power supplies and all NOS tubes is magic in my system and in the end each of us must choose what works with the rest of the equipment that makes up our system.
To further clarify the EXACT situation that occurred at CES and caused the blanket comment from Boulder, I walked into a room displaying Sound-Lab A-1 (their top line) speaker fed with Boulder electronics. I noticed that the left Sound-Lab speaker was plugged into the electric razor outlet leading from a table lamp, which was wired with 18 gauge lamp cord.
I ask Boulder (who was answering questions for all the equipment in the room at that moment) if I might check into borrowing cables from Purist, Cardas or another nearby cable exhibitor that would reach the (existing unused) wall socket with a grounded connection (NECESSARY!) for the 20K bias of the Sound-Lab speakers being displayed.
THIS is when I got the snide remark. All I can say is even if the lamp cord, table lamp, and lack of ground was not at issue, respect for the fellow your displaying with would require at least a stock 16 gauge Belden for this type of high end set up.
Over many years I've experimented with many aftermarket AC cables with Sound-Lab speakers and can promise you there ARE sonic gains to be had with premium AC cords.
Anyway, good luck Pedrillo in your search regardless of what you decide.