Albert Von Schweikert's earliest research led to the development of an adjustable ambiance retrieval system radiating from the speaker's rear to recreate a natural soundfield of space & depth using a concert hall recording method known as the spaced omni method. This system replicates the effect when microphones used for recording encode the musical signal with overlaying pickup response patterns.

After studios make a series of recordings using several different microphone types, the playback from each device has tonal differences and create various imaging patterns. This creates a differing perception of space & depth dependent on the recording environment, microphone placement, and each microphone's distinct off-axis polar response.

From this framework, our rear soundfield system creates a natural soundstage, regardless of the recording, microphone type, and recording technique used. Most importantly, the system allows the playback response to remain as close as possible to what was intended by the engineer.