I own (2) pairs of PFX's.....so, here are my thoughts so far.
I posted this in another thread, and thought I'd copy it here as well since I now own (2) sets of PFX's.
If you have the privilege, compare the Bose A20's, AKG AV100's and the Lightspeed Zulu PFX's before you buy anything. Also, compare apples to apples. The latest from one company can't be compared to older model headsets from another company. I.E. You can't compare PFX's to Bose X, or Zulu 2's to AV100's, etc...
I believe the top 3 headsets are very close and it comes down to personal preference. I had (2) new sets of Bose A20's that I flew from AZ to OSH and back....tried the AV100's and PFX's several times at OSH. Then, upon landing back in AZ, I returned the A20's and I now have a pair of PFX's in my flight bag.
My reports:
A20's-
PROS: Great sound
CONS: Bluetooth ONLY for cell phone calls, my ears seemed too big for the cups, the cord is too rigid, the battery box cord is too short to get tucked behind my elbow (padded side armrest in RV-6A), soft carrying case
AV100's-
PROS: Company has LOADS of experience in mic's and speaker's (zero experience in aviation though), lightweight, looks cool, full bluetooth, front LED lights
CONS: Fake carbon fiber print, too much plastic, too much white noise for my liking
PFX's-
PROS: Totally flexible cord, hard carrying case, full bluetooth, metal used in places where it seems appropriate, great sound, cord from battery box to plugs are long enough that I can tuck the battery box behind my elbow (padded side armrest in RV-6A)
CONS: Battery box is heavy due to (4) AA's, my Oakley sunglasses seem to keep the front of the cups from closing so I'm going to try wire frame sunglasses instead