Pros: Smaller, lighter, not fatiguing, transparent shell and sound.
Cons: There are colored dots on the outside to help users find left and right, but quality control let my set through with both inside dots black.
Because no one else has stepped up to the plate I will give this short review of the Westone UM3x stage monitor. ...Studio Monitors... The best at all costs are probably the earphone monitors worn on stage, by performers. All of them are in-ear passive noise canceling monitors. ...Armature drivers... These high-end custom ear-canal head monitors use balanced armature drivers instead of the larger diaphragm loudspeaker. Because you are not moving any air, you can seal the exterior against noise better. ...Deal... The Westone UM3x is a three-driver system just like those used in custom ear monitors, but with universal tips. This reduces the price about $500.00...(read more)