I don't know about "easy." You could try EQ'ing whatever you currently have by ear but that takes a lot of experience and practice. It helps to have a "711" coupler to make measurements. REW helps with modeling. I've EQ'd the $10 Panasonic RP-HJE125 to it for the most part. I've EQ'd the Soundcore Sport X10 to being pretty close. EQing 3KHz+ must be done by ear since it is not accurately measured by coupler and is anatomy and insertion depth dependent. Might take you 20+ bands but it CAN be done.