Enhancing the performance of power op amps discussed in this app note from Apex Microtechnology. Link here (PDF)
Power op amps are attractive because they reduce circuit design time enormously. Assembly costs of the power op amp design amount to a fraction of the discrete counterpart due to vastly reduced parts count. Careful attention to the power aspects of a circuit is required, as the well known op amp design rules based on low power devices. The objectives are to maximize reliability plus optimize output power and system efficiency. This application note points out some optimizing techniques and some areas to be especially watchful.