I've had them for the past three years on my Dunlavy IVa's. I love them, they do take layers! of hash away and allow better vision into the soundstage. I use two pairs, one on the bass and the other pair on the mid/treble. I have taken them off in the past year just to hear if they really mattered, they went right back on. A must have cheap (relitively) tweek!
