An apparatus for processing an audio signal includes a configurable first audio signal processor for processing the audio signal in accordance with different configuration settings to obtain a processed audio signal, wherein the apparatus is adapted so that different configuration settings result in different sampling rates of the processed audio signal. According to the invention, the control means are vector-based, the control means also being adapted to control the spreading parameters in response to the speed and direction of said vehicle. Rollers are used for supporting and drawing boats through the automatic boat washing assembly. The invention also provides articles and methods for immobilizing amine-containing materials to a substrate. If the measured battery voltage is below the threshold voltage value, indicating that the battery will not have sufficient charge to re-start the motor, automatic shut-off of the engine when the vehicle stops is suppressed. A membrane layer lies contiguous with the metallic rigid plate, provided between the metallic rigid plate and the anchor mounting bracket mounting flanges, the membrane layer being bonded to the metallic rigid plate.