I love my VR4jr!! I have a Sim Audio W5 driving mine and the sound is remarkable. Liquid smooth, details galore with imcredible grip on base. When I added a Supratek tube preamp, it took it to a whole different level, soundstage went further beyond speakers then I could have ever imagined, left to right, front to back... Now I know what people are talking about when they say 3D and holographic sound. My dealer runs them with the new Classe stuff... also truly amazing.
These things will certainly tell you what quality of electronics you are driving them with. They are very neutral speakers and if you have some coloured electronics driving them be prepared to hear what those auxilleries really sound like.
Good listening.