So listening to great sampler of Hungarian jazz label BMC record 2014 called little bird in the lee these old Sony speakers nice and loud and I can say the system sounds pretty good to my old flaps , it really does sound full to me yes may be the top end is not as reveling as a modern set up but honestly these Sony G4 things sound great I had a nice set of atc 40 SCM things sealed box three ways but I just couldn't get on with them and you had to really bit them hard to make the bass pop ,well these Sony's mooch around quiet happily at normal domestic levels and sound full . I lost about 40 percent on the atc SCM boxes when I sold them but I was glad to get rid of things and they were rather good at finding crappy recordings and revelling every thing which is good I suppose the mid range unit on the ATC was yes speciall etc . Great for listening into recordings . I replaced the STC with nice Martin Logan electrostatic panels which went pop and these Sony's pushed in to service and quiet happy with them ,yes not as nice as the electrostatics with a nice 8 inch bass speaker in the boxes . If I had the room again I would look for them again .but these are ok .for the moment .