Mac G4的喇叭

its diff with the one came with G4 Cube , I mean if this is pro speaker , it only support G4 Macintosh " digital audio " version code name quick silver , if its came with Cube, I don't think its sale seprate off , btw , the Cube  discontinuous long time : o also no matter its came with cube or pro speaker , its same  as i-Mac buildin speaker , except its extend .