Adjusting for Tweeter height with monitors

There isn't an optimal height "Par Se", the room has a substantial influence on the Speaker, being an environment very very different to the environment the Speakers were created in by the design team.

Speakers are a bit like a military plan, the Plan remains excellent until the opposition are engaged, then the training and principles of the Team become the structure that is depended on for success.

The design for a Speaker is excellent until the Speaker become the item used in a the New Environment. Only then does the secondary requirements take precedence, which is how to best couple the Speakers within the space to perform at their most optimised. 

In many cases a tilt to a front baffle has the positive effect for the End Sound being listened to, but is definitely not the full resolve to the issue.     

Now that I looked at your speaker in a more detailed manner I have come to the conclusion that you should remove that lift and roller assembly on the bottom front of your speaker completely and let them sit flat on the floor surface. Give that a try and the speaker should be perfectly at your face and ear height and the tweeter will be at its premium position for listening in a standard listening chair.

THAT IS YOUR ISSUE of why the tweeter signal is going above your head.

PEACE! TO ALL.

I have custom speaker stands for my bookshelf speakers, cost about $300 but it was worth it

@blackbird55 

I thought I explained that furniture height is dictating speaker height. I don’t want woofers positioned any lower.

@parkergetdean 

Are they mass-loadable? 

I am not sure what mass-loadable is, sorry