BOOK REVIEW

Designing Audio Power Amplifiers, Second Edition, by Bob Cordell, Routledge/Focal Press, 2019. 776pp. $160.00, hard cover; $97.95, paperback.

I first met Bob Cordell at clinics he gave at the last audio show organized, Home Entertainment 2007, in Manhattan. At those clinics, Bob shared his views on why amplifier measurements are not always good at predicting differences in sound quality. So when I was scheduled to host a seminar—“Amplifiers: Do Measurements Matter?”—at this year’s now-postponed AXPONA, Cordell was on the short list of designers