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

@tomcy6 , I think you're right about the Amperex Holland having the best midrange. And I've heard a difference between the small and large O-getters.  
I agree the D getter may add the warmth and richness.

Since we were speaking only about Amperex, I'd like to add that I'm now using a pair of 7308 1960 Philips SQ large O-getters in my Dac. These are more neutral with low-end slam and the midrange of the best Amperex. They were a Brent Jessee recommendation and replaced the US Amperex PQ.
 

@pmboyd -   I've now made three attempts, to reply to your PMs.    

My Amperex USN-CEPs, have the large O getter.     Their midrange warmth is the singular reason, I’m not using them.     Everything else is presented, as realistically as my CCa’s.     That’s why I’ve had them in the drawer, all this time.     I thought at some point, my tastes might change(far as warming things up).

@rodman99999 , I checked my records and the USN Amperex only have large O getters. I had a pair of USN 6922s and returned them since they didn’t have an extended low-end. They weren’t too warm; maybe it’s the higher voltage of the 7308 that adds the warmth and richness to the tube.

Here’s my take on Amperex US vs. Holland 6922 PQ...
US is more focused and extended.
Heerlen, Holland has smoother highs and sweeter mids.

I can say for sure that the Holland 7308 Amperex PQ and Philips SQ have a fuller sound from top to bottom with deep liquid mids.

Edit...very lively tubes.