If you follow speech level singing dialogue online about “mixing”, then you have probably read, somewhere, sometime, suggestions that a mixed voice can’t be powerful.
Au Contraire! The mixed voice is very powerful.
Let’s review what is the “mixed voice”. The mixed voice is simply the ability of the singer to ascend and descend in pitch throughout all vocal registers with good cord closure, adequate resonance, and correct vowel placement.
The magic formula now is to allow this to remain consistent while you are singing songs. No going back to old habits. Instead, focusing on what’s going on “below the throat”.
Breath control is the number 1 force behind power. Intake and output of breath is key to finding your level of “power” for your voice at its’ current level of ability right now. It’s when you overstep your level of control to make your voice appear powerful, that takes you back to old habits.
If you are running out of breath while you sing, this can be a good thing. It’s telling your body to find ways (below the throat) to either get more air in, or stop letting so much air out. Awareness of your back, ribs, stomach and groin area are fundamental.
With proper momentum of your breathing, you can find the balance and control where you will not have the sensation of being breathless after long phrases in a song.
Beware, you may not be content with your level of perceived “power” with your current level of breath control. That’s why it’s best to have a good vocal coach join you on your journey to find “power” in your “mix”.