Extremely rare brand new old stock Boston Acoustics 3.5" Neo cast midrange driver. The finish on the face of the speaker is brushed aluminum due to being used in the VRi593.

These are compatible with the VR-M90, E100, VRi593, and VRi595. The only difference being the finish and E100 having a heatsync on the back.

These are the highest end midrange speaker that Boston ever made, you will probably never see these again as the speakers they go to are very rare themselves. Feel free to send me a message if you have any more questions.