"Common stereo imager (typically using M/S decomposition) plugins can not retain stereo information of source singal. These plugins sometimes emphasizes side component of input signals, however, such processing easily breaks tonal balance and stereo eld of input singals.
In contrast to others, A.O.M. Stereo Imager D uses on correlation-based decomposition. This algorithm decomposes L/R inputs into L’/C/R’. The correlated component of both channels is mapped to C, the decorrelated components are mapped to L’/R’. The L’ and R’ components have no correlation, it means a true stereo."
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