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I kind of disagree with Adrian. The wire, the coupling caps, the cathode resistors and many other things are superbly important but it is after the strategic topology is settled. In my view caps, resistor, wire and other things are responsible for the sounds, the minor things, the tactics. The big picture of the sound, the strategy is made by the macro topology. I properly, or I would say sonically-pretentiously, designed amp would sound strategically -properly with any, even with very poor parts and even with not the best assembling methods.

At this point I am not convinced that I will keep the topology of my experimental DH SET, there is a lot of thing that I do not like it.  This amp is Sun Audio SV-2A3. It is very straight forward and simple design.

It is up and running with all default parts, which are very bad I have to say. All tubes are Sovtek, I just took a liberty to put there 3A2 from WWII. I have no good rectifiers and no good 6SN7 and I have order a pair. Still I do not wont to invest a lot of efforts to make this amps to sound better and I most like will go two stage. I have no need for 40 time gain in driver stage. I might get rid of the second stage, make some other changes, or most likely will go with my 6E5P in a driver stge.

For a time being I would like to live with this amp as is for a few days. I drive with it my Tannoy Red full range. In addition I have the channel #3 from my Super Mils is the Injection channel, or a fill range Melquiades amp. So, I might run back and forth two full range amps: 6SN7-2A3/6A3 vs. the 6E5P-1/26C33C into the same speaker. I actually did it today, it was interesting. In a few days the better tubes will came and I might try to change the DHT amp for more sane operation.

So, far the only advantage that I see in my DHT is it boutique quality…

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