A good test track is Elektro Kardiogramm from Kraftwerks album Tour De France Soundtracks. I returned it but, NOW ? No way. Perfect replacement for the originals. I figured there had to be a better way so I found these. volume is just ok but I like music loud. These shelves gave me so much room that I was able to grab some small electronics sitting on the floor of the closet and put them up there too. Easy to put together, and 4 months later is holding up nicely to the abuse a family of 6 can throw at it. Plus Side:No amp is requiredNoise Cancelling does its job without failEven though the cable is preparatory you can actually replace it for cheap that you can find on Amazon for iOS specific or regular usage. I purchased a black pair and a white pair both the same size.