6922 Amperex PQ White label... D or O-getter? Holland or Hicksville?

I've tried the 6922/E88CC PQ from both Holland and US. As far as I could tell, both had the liquid and rich midrange that this tube is known for. 
But, the 7308 Amperex PQ  from Holland has outstanding dynamics with the most liquid and warm mids. The E88CC doesn't have the deep low-end of the 7308.
BTW, the Philips SQ Holland is the same tube as the Amperex PQ. They are often substituted due to availability.

agree with Lowrider....the 7308 is terrific if you can still find them. weren't they a military spec 6922?

I don't think the 7308 is mil spec. It's heater is rated at 7V while the 6922, 6DJ8 is 6.3 volts.