Question is what is the difference between the 808i and 808.2i

Are there major hardware differences an dif so what exactly ?

Meridian 861V4, 808i, McIntosh MC1201(2), MC252, MC501, DVDO VP50PRO, Sony Bravia 52inch, Sony BDS500, B&W 800D's(2), 804s(2), ASW825, HTM1D, Nordost Frey, Transparent RR