sentences:  Objectivists tend to see the subjectivists as irrational and prone to gullibility, while subjectivists often dismiss objectivists as simple "meter men" who lack a nuanced appreciation of sound.Although the debate can be heated in certain quarters, both groups seek optimal listening experiences, and in some cases, the findings of one group has informed the other.Objectivists argue that vacuum-tube amplifiers often exhibit lower-fidelity than solid-state designs, and that in addition to their substantially higher total harmonic distortion level, they require rebiasing, tend to be less reliable, less powerful, generate more heat, and are usually more expensive.