Apr. 1, 2015. TDK Corporation has announced that its Hong Kong-based HDD head manufacturing wholly owned subsidiary, SAE Magnetics (H.K.) Ltd.
You use a wrench to screw, or unscrew a bolt. A screwdriver is for screws. Either way you turn it left. Some bolts have reverse threads and would turn the other way to unbolt.
Unscrew the relevant binding post (speaker output) on the amp, pop the bare part of the wire into the hole on the post (if there's no hole, just wrap it around) then screw the post back down, making sure that no wire is poking out of the connection.