I highly doubt that most people have tried these, so we can't say if they'll get better or improve with more power but there really aren't any...disadvantages to a smaller driver. Bigger drivers have more ability to move more air, therefore produce more bass. Smaller drivers (on the cheap end, not taking the Teslas, Ring Drivers, or planar magnetics into account, and in my experience) usually have more finesse. Heck, AKG uses 33mm drivers for the K240's. Bigger doesn't always mean better in cases like this.