The objective of this study is to assess the benefit of new super-power bone-anchored hearing aid (BAHA) processors in BAHA users. BAHAs are able to help people with mixed/conductive and single-sided hearing loss when they were not receiving benefit from traditional hearing aids or could not use them due to differences in their ears related to surgery or congenital anomalies. Stronger super-power processors may be able to help individuals who previously did not meet candidacy for BAHA. This study will evaluate how much benefit they are getting from their current devices compared to new super-power devices.