KSM9 and KSM9HS are dual-pattern vocal microphones for live performance. When would I use each pattern?
Question
KSM9 and KSM9HS are dual-pattern vocal microphones for live performance. When would I use each pattern?

Answer
Sound engineers and performers may choose to select the supercardioid polar pattern of the KSM9 when confronted with a high SPL environment, where more rejection is required to isolate the singer from the surrounding environment. This provides a sound engineer with greater flexibility and control of the amplified voice.
The hypercardioid polar pattern of the KSM9HS is designed with a flat frequency response for extremely high SPL environments, where the vocal source requires maximum isolation, with tremendous rejection of any off-axis sound signals.
Select the cardioid polar pattern of the KSM9 for use in more temperate SPL performances, often with personal in-ear monitoring, to reflect a more natural environment.
Subcardioid polar patterns are beneficial on quiet stages where bleed and volume are not viewed as an issue – they may in fact be a desired part of the stage ambiance to enhance the overall sonic palate.
Each KSM9 and KSM9HS microphone will reveal every nuance and detail with clarity, as the frequency response stays consistent - regardless of which polar pattern selected.
The hypercardioid polar pattern of the KSM9HS is designed with a flat frequency response for extremely high SPL environments, where the vocal source requires maximum isolation, with tremendous rejection of any off-axis sound signals.
Select the cardioid polar pattern of the KSM9 for use in more temperate SPL performances, often with personal in-ear monitoring, to reflect a more natural environment.
Subcardioid polar patterns are beneficial on quiet stages where bleed and volume are not viewed as an issue – they may in fact be a desired part of the stage ambiance to enhance the overall sonic palate.
Each KSM9 and KSM9HS microphone will reveal every nuance and detail with clarity, as the frequency response stays consistent - regardless of which polar pattern selected.
Shure