I am extremely interested in your new in-ear headphones/monitors, however, the frequency responses are not posted.
The frequency response of ANY earpiece that seals in the ear is a direct function of the ear's internal shape and the acoustic seal in the ear. This varies from person to person, and the variation is considerable.
As we cannot guarantee a frequency response because of these variables, we choose not to publish a frequency response. It would not reflect the real world application of this type of earphone.
Our advice: find a Shure dealer with units to audition.