|7th July 2010, 03:52 AM||#151|
diyAudio Moderator R.I.P.
Join Date: Nov 2005
It sounds good, until you have heard a better one, as they wickedly say
Anyway, personally Im quite happy with just a minimum of quality
But to define that could be difficult
sometimes we know very little, and sometimes we know too much
|15th June 2012, 05:15 PM||#154|
Join Date: Feb 2003
From SKA simplified schematic, a latfet in CFP arrangement (even if the distortion is usually higher then EF) may have some cult followers. But from my experience, lacking drive, mosfet amps will sound boring. In a 3 stage amplifier with latfet CFP, the mosfet will not have sufficient drive to fulfill my taste.
Pass mosfet amplifiers have fanatic followers. You can live with any of Pass amp for a long time. Imo, one of the reason is because Pass amps have proper drive for the mosfet.
To build the best amp, parts especially the active ones, transistors, must also be the best. This is even truer when the topology play less role, such as in a single ended topology. Power JFETS is probably the best available, but only Pass amplifiers have it. I noticed also that Vladimirk has access to very good mosfet and power jfet.
To rank amplifiers, they are must be grouped, at least by power.
At 5W, I think Pass amp with its power JFET is the best. Haven't heard a F2J, but if it is times better than F2 then it must be good.
At 25W, again, I think Pass amp with its power JFET is the best. This has been proven in blind tests. My favorite (not necessarily the best) is my latest build, an AlephPJ with 2SK246 and 2SJ162, 5.5W (no schematic available).
At 50W-180W, my champion is a variation of TSSA (no schematic available).
At 200W and above, taste and knowledge (when building or matching with other components/speaker) is important, especially because high power class-B will not be perfect. My favorite goes to Goldmund, with selected parts.
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