Of course the download sounds different from the vinyl.
If you match the levels perfectly, match the speed well and time-align the samples, and if the frequency response of your complete vinyl set-up (cartridge and pre-amp) is very accurate, and the same mastering EQ and compression etc were used for both versions, and the playback quality of your vinyl set-up is good and the stylus+cartridge and tracking properly and not worn, and you only listen to a part where the inherent background noise of vinyl is inaudible, and you listen to a part where there are no clicks or pops, and the vinyl is not worn, then you might find it impossible to hear the difference between the vinyl and the download.
Get any of these factors wrong (some of them are out of your control!) and it's likely that you will hear a difference.
Cheers,
David.
If you match the levels perfectly, match the speed well and time-align the samples, and if the frequency response of your complete vinyl set-up (cartridge and pre-amp) is very accurate, and the same mastering EQ and compression etc were used for both versions, and the playback quality of your vinyl set-up is good and the stylus+cartridge and tracking properly and not worn, and you only listen to a part where the inherent background noise of vinyl is inaudible, and you listen to a part where there are no clicks or pops, and the vinyl is not worn, then you might find it impossible to hear the difference between the vinyl and the download.
Get any of these factors wrong (some of them are out of your control!) and it's likely that you will hear a difference.
Cheers,
David.