Can someone test hi-freq output of voyager?

Anyone have an oscilloscope or way to test the high frequency content of the voyagers output compared to the mini and source. I want to know whats going on in the top end of the voyager and the point where the cutoff will no longer go any higher. Very nerdy question i know but i cant get the voyager to sit high enough in the mix without eq. I have some high quality pres (neve/avalon) and they show every sound in the most naked way!

Any thoughts? This post is linked to the voyager/model d comparison post.

if you use your ear, you will notice that the filter opens up more on the Minimoog as on the Voyager. Both tested without applying envelope or keytracking voltages.