[Elecraft] Speakers - Optimal Frequency Range?

[Augie "Gus" Hansen]

On 10/17/2016 5:20 PM, Phil Townsend Lontz wrote:
> ...
> I eq the crap out of the K3 after 8K and set the tone of my CW note to 440… Near a natural “C”.
> to me that sounds easy and warm.

When did this musical standard get changed? I've always tuned to A440. 
Guess I'll need to tune all my guitars differently from now on... ;>)

Cheers,
Gus
KB0YH