SET Asylum

RE: Forget the 300B with efficient speakers

71.51.216.113

In Reply to: RE: Forget the 300B with efficient speakers posted by paba on October 08, 2009 at 11:24:16

Hi paba,
Using both sections of a dual triode, for different functions, ie: input function and another section as a driver function - the 300B amp has a three stage topology. We are talking about the SE amp's number of stages doing differing functions, not number of tubes employed.
Using a single stage, functioning as a input AND driver, powering a 300B, is an amp with a two stage topology. Even if the first stage is a dual triode, sections connected in parallel, performing the same functions, it is a two stage amp !!
If two and three stage topologies are done (each to the best possible execution), the two stage will outperform the three stage, and that is why I build them. The three stage WILL be less transparent, due to the extra (third) stage.
So, proper KISS rules, and when each topology is optimized, less is more !!
Jeff Medwin

Edits: 10/08/09

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