Pioneer is a Class-D Monaural marine amplifier, which is IP67 rated and is SAE J1171 Certified. This amplifier features top adjustment access that benefits when installing into narrow compartments. Its 21-step frequency selection has a new feature that firmly clicks into position. A microcomputer provides controlled current and voltage protection to ensure stable output operation. This amplifier features a 32-bit floating-point DSP to modulate the input signal which improves audio performance for the highest levels of accuracy, stability, channel symmetry, and high signal-to-noise performance.