Multiple Outlet Units

I currently use one of the Wiremold multiple outlets with some of my gear. I did not have enough outlets to plug in my gear and wanted a multiple outlet device that would "do no harm" sonically. The Wiremold seems to do well at not drastically harming the sonics. Are there any other devices that accomplish this? Not really looking for a power conditioner at this time.
You can always make your own. Just put some quality duplex outlets, like Hubbels, into a double, triple or quad ganged electrical box.