Thus frequencies which are present in the air molecule output of musical instruments, including the human voice, may for the first time be properly reproduced. There is only one air molecule soundfield in the production and reproduction of music and sound. Air molecule motion, whether heard as sound, or felt as energy, is part of the original acoustical signal and true, high fidelity reproduction of that original acoustical event means full air molecule field reproduction, right down to direct current. The Subwoofer comes in marble and selected, non endangered hardwoods. The subwoofer requires a high quality electronic crossover, such as the American Power and Light, Inc, All Vacuum Tube unit.
Further requirements are are an amplifier stable at high direct current delivery.