Three models of full-range powered loudspeaker are presently available: the APL-800, APL-500, and APL-220, with the APL-110 scheduled for release early in 2002. Both the APL-800 and APL-500 feature dual 400W amplifiers and are fully arrayable and highly effective when used alone or as the building block for a large system. The APL-220, also with dual 400W amplifiers, is designed for applications requiring extremely high power and tight directional control. The APL-110 features a 300W low-frequency and a 150W high-frequency amplifier. All models are bi-amplified. Apogee's switching style amplifiers use a patented control law that reduces the distortion levels and distortion characteristics to those of a high-grade linear amplifier. The sonic quality is superb while retaining all the best properties of a switching amplifier - high efficiency, minimal heat, small size, and low weight.
Three powered subwoofer models - APL-12, APL-10, and APL-SB - are currently available. The APL-12 and APL-10 employ dual drivers and dual amplifiers, with 2000 WRMS total. The APL-SB uses a single driver and single amplifier, with 1000 WRMS. All models provide deep rich bass response and are suitable for touring, AV, and fixed installations. The self-powered subwoofers utilize class AB amplifiers powered by switching type power supplies. A patented technology tracks the audio signal and continually adjusts the rail voltages, vastly reducing heat output. The sonic quality of the class AB design is excellent while the small size and low weight, made possible by the tracking rail technology, is similar to a class D switching amplifier.
