Combining the M/S (Mid Side) matrix processing concept of the stereo field with multiband architecture, Quad image effectively allows control over the stereo width of each frequency band. The Quad Image is a powerful processor despite its simple set of controls.
M/S processing on each band allows complete control over the stereo image over selected frequencies. This can be used either to correct technical problems in mixes, where the relationship between the center (M) and side content (S) may be wrong or needing adjustments in selected regions of the audio spectrum, or to perform creative effects such as exaggerating the width of a stereo source, such as a synth track, to generate cool and unusual stereo "tricks."
As with the rest of the T-RackS Quad-Series processors, we made sure that the quality of the filters used to perform band cutting was extremely high; in this context it was even more crucial, since the nature of the M/S module has a close relationship with phase manipulation.
Being able to control the stereo width of a selected frequency range is a tremendous power: widen the high quality while keeping the bass content focused in the center, or do the opposite, depending on your needs.
As mentioned above, this processor is generally used on the stereo master bus, when there is a need to correct the less than perfect balance of the M/S components of a mix. This does not limit the use of the powerful processor, which I can say will be very useful in controlling the frequency spread of drum microphones, where there might be a need to restore focus to the center kick drum and the snares where the microphone may have been placed. bad shape or too wide during recording.
