da provare!The comparisons provide some basis for judging between a tube amp rated at 5% THD at X-Watts, vs. a solid-state amp rated at .001% THD at Y-Watts. The audio world is inundated with snake oil, and I have been suspicious about the claims regarding the sound from single-ended triode amps at high levels of THD, but I am now a believer.
- My conclusions from my own listening tests are:
- For a given level of total harmonic distortion (THD), a single-ended class A triode amp without feedback sounds a lot better than anything else.
- A push-pull pentode amp without feedback and a solid-state amp are not drastically different.
- If the maximum output power of the single-ended tube amp is less than 1/4 of the power of a solid-state amp, and they are played at equal volume levels, the solid-state amp wins.
- My audibility threshold for clipping occurs at an output level around 5-10% of maximum output power, where roughly 1% of the digital samples are clipped.
...ovviamente in doppio cieco, con l'ausilio di uno dei tanti software appositi disponibili, come ad es. quello consigliato nella pagina, il plugin ABX di Foobar2000 (windows), Squishyball (Linux CLI), ecc.
http://www.google.com/search?q=ABX+doub ... t+software
