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Do It Yourself (DIY) paradise for tube and SET project builders.

'Except I never heard a zero NFB PPT amp yet'

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I have as I built two such designs in monoblocks. Both use quality MQ iron and simular PS of LCLC to another LC for the small signal tubes. One is PPP 45s & other is triode connected PPP 6V6s.

Both are excellent amps with surprisingly simular sound. I and others give the PPP 6V6s a slight edge in dynamics. Both amps play complex music well.

Comparing the PPP designs to my DIY low voltage SET 845 with Plitron audio transformers, I will give an adge to the PP designs on more complex music. But, that 845 SET has more of an open sound in the mids that is stunning.

I also found out my ProAc speakers were less than great with new DIY 2.5 way speakers. Guess I am not finished here, perhaps never will be finished until my ears give out.


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