Hello Tom,
The 51se is more extended then the 31se on the top end with more resolution of finer detail but at the same time it's not as bright. The mids are richer and more vibrant in texture, the bass goes lower with better definition. Soundspace is more vast with more air on the right recordings. More dynamic!
IMO the most stricking quality the 51se has over the 31se is a sense of ease from top to bottom. It just does everything in a more relaxed manner but at the same time it's sounds more compelling with even greater resolution.
I think a good anology would be .... A car with a 6 cylinder engine can get you up the hill but an 8 cylinder car will do it better and make it seem easy.
Good luck!
Tom
The 51se is more extended then the 31se on the top end with more resolution of finer detail but at the same time it's not as bright. The mids are richer and more vibrant in texture, the bass goes lower with better definition. Soundspace is more vast with more air on the right recordings. More dynamic!
IMO the most stricking quality the 51se has over the 31se is a sense of ease from top to bottom. It just does everything in a more relaxed manner but at the same time it's sounds more compelling with even greater resolution.
I think a good anology would be .... A car with a 6 cylinder engine can get you up the hill but an 8 cylinder car will do it better and make it seem easy.
Good luck!
Tom