Quote:
Originally Posted by
cfcubed 
Oh MrSlim, there are many ways to skin a cat:)
I've an unorthodox/budget EHHA I on the bench I've been to lazy to finish casing up. It will come in far under that $700 figure and as a 2-box build (remote PS) should take less desktop space than a typical SOHA II. I know, pictures or it didn't happen
Whats wrong with EHHA revA? should be under $400 and unlike any other DIY tube project out there is can output 14Vrms unbalanced output, that IMHO makes it the king of all DIY tube amps. Can power just about any headphone. Plus it has very low distortion. Yea we all wish Alex hadn't gone commercial closing off EHHA2, but this EHHA1 is tops and I hope as time goes on more group effort is placed on it 'cause I suspect there is potential yet to be unlocked with the input section.
Otherwise if you don't need the power the SohaII is a tough one to beat, very easy to build. I would rate it a 2/10 on difficulty and an O2 a 5/10, its well thought out and has little risk in damaging headphones/dac's like some diy designs can. If you are lucky you can still find Aperex 12dj7 tubes for it that are seriously like buying equivelant $200 NOS tubes for $20. Thats the biggest thing the SOHAII has over all the other hybrids, most of us will never afford to hear what a true NOS aperex 6dj7 sounds like. I can't tell you how many times I paid big bucks for NOS amperex 6dj7s when they were heavily used, with the 12 volt version the sohoII uses you don't run into that. Plus it has E12 protection right on board, you can't beat it for phones requiring low power.
If the OP is interested I could send some SOHAII measurements.