I've just moved into a new house which appears to have paper thin walls and now need to spend some of my hard earned cash on a headphone setup. I've spotted [URL=http://www.studiospares.com/pd_325100_ART%20HEADTAP%20HEADPHONE%20CONTROLLER.htm]this[/URL] on studio spares web site and wondered if there were any drawbacks in using something like this instead of a dedicated headphone amp? The headphones I have at the moment are a pair of Beyer DT770's. So nothing too high end. Any feedback would be appreciated.