K3 or ftdx3000

[KD8MJR]

You are 100% correct on that.  Sensitivity in modern radios is not even an issue anymore, it's now all about getting rid of the extra noise that comes with it.

[AD9DX]

You are 100% correct on that.  Sensitivity in modern radios is not even an issue anymore, it's now all about getting rid of the extra noise that comes with it.

You can turn the preamp off too. Most of the time I find it completely unnecessary.

[KD2CJJ]

I agree... I have actually started to play with combining Pre Amp with Attenuation!  Its an odd combination for me but I am finding that it helps with noise reduction.  I think this is where the ftdx3k really shines over the K3.

You are 100% correct on that.  Sensitivity in modern radios is not even an issue anymore, it's now all about getting rid of the extra noise that comes with it.

You can turn the preamp off too. Most of the time I find it completely unnecessary.

[AD9DX]

The K3 isn't really noisy, you can turn down the gain to accommodate your local noise environment.  Like others have stated with the ACG settings on both radios also you can turn them in to less "noisy" radios if your environment needs it.