When you are listening at one third of the full volume of your system and your subwoofer starts violently and drastically vibrating one inch in and out of its normal position with a never before seen intensity so that you can actually hear the physical sound of the vibration much more than anything else in the room and the music itself, it's pretty scary! It happen to me with this record and I must say it never happened before... I don't know if he finds pleasure in experiment with inaudible sub sub sub frequencies that nobody will hear or if it was just something was missed when mixing or mastering the record, but it sure got me worried for a second (especially because at the beginning I wasn't sure why I was hearing sound form under my desk rather than from my speakers). But considering that Jos Smolders is an internationally acclaimed artist with a huge experience in sound manipulation and experimentation, I'd assume he knew what he was doing and is probably amusing himself knowing that he got me worried about my brand new sound system ;-)Presented in a ingenious, beautiful and classy hand-shaped cardboard wallet sleeve, Jos Smolders's new record "Music for Kalx.com" is entirely based on sine waves and therefore inevitably sounds like a collection of minimal drone electronics. So expect long experimental pieces with deep rumbling sounds, layers of harmonics fading in and out and subtle changes... Even though there is no sound in space this is a perfect soundtrack for one of those almost silent classic space movies from the seventies and eighties (I am thinking "2001: Odyssey in Space" now...). Jos Smolders has been doing his thing since the early eighties alone (as IOSS) and with Kapotte Muziex and Goem members Roel Meelkop and Peter Duimelinks (as THU20). I am not sure what exactly Kalx.com is and if it is related to Smolders. The website has lots of modern art and computer graphics with a political soul that sometimes is more explicit than other times.