||The English used in this article may not be easy for everybody to understand. (April 2012)|
Tube sound (or valve sound) is the sound produced by a vacuum tube-based audio amplifier. All amplifiers distort to some degree; some audiophiles prefer the sound produced by tube-based amplifiers. The reasons for the difference in sound between tube and solid state electronic devices is a continuing debate among audiophiles.
- Hamm, Russell O. Tubes Vs. Transistors: Is There An Audible Difference? in Journal of The Audio Engineering Society, presented September 14, 1972, at the 43rd Convention of the Audio Engineering Society, New York.
- Rosenberg, Harvey (2004). Understanding Tube Electronics II.
- Santo, Brian. Volume cranked up in amp debate in Electronic Engineering Times, Issue 817, October 3, 1994.