I did not. I already had definition 2 speakers in the first place, and this is the same tweeter/cap the def 3 employs to my understanding.
I'm not a hundred percent sold on the driver swap yet to he honest. I hear the technical improvements but I've lost my system synergy I was just establishing with my new to me def 2s and am hoping I didn't make a mistake jumping the gun and returning my drivers.
I've been speaking to Phil a good bit behind the scenes and I'm optimistic a couple tube changes can rest my synergy... accordingly I have some 211b tubes on their way... until then, I'm slightly nervous.