where are the speakers located on the 24" I Mac?

Where are the speakers located on the 24" iMac? I have a Satechi usb/card reader attached directly to the center bottom of my iMac and it looks really cool, but I can't tilt the screen forward because the screw in the back of the USB Hub is hitting against the stand. So I'd like to move it slightly to the right so the screw in back just missed the stand. Will I be covering up any of the bottom speakers, or are they located further out towards the bottom edge of the 24" imac?