This paper presents a low-cost analog control scheme for class D audio power amplifiers. The scheme is based around bandpass current-mode (BPCM) control and provides ample stability margins and low distortion over a wide range of operating conditions. Implementation is very simple and does not require the use of operational amplifiers. Small-signal behavior of the controller is accurately predicted, and design is carried out using standard transfer function based linear control methodology. Effectiveness of the approach is demonstrated via a 60-W/8-W single-ended switching amplifier with THD+N of typically 0.02 percent.