These are keepers.Bought over 10 yrs. ago.Under my floor standers bass tightened up and became much more dynamic.The highs became more transparant.Inner detail improved to the point of hearing new things on on the recordigs.Stage is taller deeper and wider.Things have really come out of the box so to speak.Helps speakers dissapear.Added one more under my vandersteen sub,already great.Now timber rythem and pace have improved.String plucks are amazing,cymbles splash,midrange fleshed out too.Mine are not for sale!Pricy but a must have.When removed the whole stage collapses.Highly recommended.R.W.
