หัวข้อ: Hard soft medium (duet) คืออะไรครับ เห็นในเวปนอก เขามี option ให้เลือกครับ

[bt5000]

เมลไปถามแล้วครับ เขาตอบว่า

The soft, medium, and hard refers to how early the tubes will "break up" or distort. The soft tubes will distort the earliest, the medium tubes will distort relatively early, but they have a more mid range distortion that is a bit smoother, and the hard tubes will have the most clean headroom before they distort. Choosing which style really just depends on your playing style and preference of sound.

[bt5000]

http://www.wwbw.com/Genalex-KT88-Gold-Lion-Power-Tubes-210083-i1372887.wwbw