The invention relates in general to the field of high fidelity audio reproduction and to the design process and selection of a sealed loudspeaker for the home and audiophile markets. The sealed loudspeaker has at least one professional sound reinforcement driver, a crossover network, a sealed enclosure, and the enclosure volume is less than 300 liters. The at least one professional sound reinforcement driver has a small compliance volume (Vas) or a large system compliance ratio (α) for a total system quality of between 0.5 and 1.0.