Recordings with broadband spectral variations still reliably reveal loudspeaker resonances

Evidence

If a spectral feature is heard in many loudspeakers in multiple-loudspeaker comparisons, it is assumed to be part of the program, not something added by the loudspeaker. This relates to the circle of confusion (Figure 1.8) in which such variations, especially in bass level, are common. The important conclusion is that, though there are broadband spectral balance differences among recordings, the recordings are still able to reveal resonances—technical flaws—in loudspeakers. — Toole, Floyd E, Sound reproduction- the acoustics and…, 1141

Categorization

• XREF: The circle of confusion (first mentioned in Chapter 1) recurs here as the basis for the claim that spectral program variations don’t mask technical flaws.