I picked up a set of Altec Lansing speakers about a year ago, which are specifically designed for Dell systems (which is why they were so cheap). Anywho, they don't have any volume controls (volume is adjusted through windows/soundcard software) which TBH, is a pain in the ass if I'm in the middle of gaming and need to change volume. I've been searching around for a soundcard for a while, hoping I can find a reasonably priced external soundcard with volume control, but then I thought 'why not just build a standalone volume control box'. I was wondering if any knows how I'd be able to actually build one? I'd just want a single knob that'd control all 6 speakers, so I presume I'd need some kind of pot with 6 inputs/6 outputs? Also, do I want to be adjusting the input volume (pre amp) or output volume (post amp)? If there's a way to adjust the post amp volume that'd be great (the speaker volume is constant (and loud), which results in a slight hissing sound - I imagine that a lower post amp signal would reduce the hissing?). Any ideas?