Im not sure what 300 in canadian is but the 717 is a good amp. You can go to www.audiokarma.org and check out past threads of the sansui.. we have a dedicated forum just for sansui gear. If the sansui is in nice condition you might wanna pick it up but as they get older they can experience problems so watch out for things like dirty volume pots, and if possible id measure the DC offset of the amp. if you have a digital multi meter and know how to use it i can tell you more..