I already have a pair of DUNU 3001 non PRO in-ear monitors (IEMs) and they were used for comparison purposes with these TRI I3 IEMs. It is also important to understand that these earphones are totally different in construction to conventional earphones. The TRI I3 have 3 different drivers one is a dynamic driver, that is doing the lower frequency, then whe have one balanced armature that is responsible of the highs and then we have the planar (they do the mids) wich is a thin membrane suspended in a strong magnetic field. The membrane is imprinted...