Emirates low and high density aircraft?
 

Hi, can anybody please supply me with the registrations of all the aircraft Emirates used in "low density" and "high density".

looking on the Emirates website you can see that the B772 and the B773 come in either 3 class or 2 class configuration. the same applies with the A332s, but it doesnt say which ones have what configurations.

i assume the high density aircraft must be the ones with just first and economy class and the low density aircraft with business aswell.

any help much appreciated. Graham