Tube sound

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 amplifiers. The reasons for the difference in sound between tube and solid state electronic devices is a continuing debate among audiophiles.

References

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 Archived 2007-10-27 at the Wayback Machine.
Santo, Brian. Volume cranked up in amp debate in Electronic Engineering Times, Issue 817, October 3, 1994.

This short article about music can be made longer. You can help Wikipedia by adding to it.