Resistor to tone down tweeter?

I have a pair of Focal 918s. I was curious about trying to tone down the tweeters a bit.
What options are there?
Can I wire a resistor in front of the tweeter? If so what size/rating would it be.
I would like to get a little more volume without the excessive treble.
Thanks Jayson
I replaced the tweeter in one of the speakers b/c the inverted dome was torn-cracked all the way through. This helped quite a bit. The new tweeter sounds much more the point that the other one stands out a bit. Not to a frustrating point but noticable.

I took some blankets and experimented temporarily. I hung them on the first reflection point. I noticed a huge difference when I took the hanging end and held it right behind my head. (How silly I must look!)
The problem is trying to coordinate function/decor and meet my wife in the middle. My living room is my listening room.

Has anyone tried curtains? I thought of hanging curtains so that we could have pictures in view and then I could just pull the curtains when I wanted to listen for extended length of time. I have seen the acoustic wall art but Im afraid we may not like the look and be stuck with the custom order.??

I will try adjusting the tilt and see what happens.

Any more ideas are welcome.
Certainly treat the first reflection points in your room. Also if there is a wall close to your back. You can get some panels from GIK I prefer them because they work well, are very reasonably priced, and for WAF you can get them covered with acoustically appropriate material of any picture/photo you wish.

Also recommend less toe-in so tweeters are not hitting your ears so directly.

And if your baffles have relatively sharp edges or are wider than your drivers, try a pair of natural wool felt pads from Jim at These reduce HF baffle reflections and corner diffractions.

And for a quick and cheap bandaid treatment, tape a small piece of paper towel so it hangs over them. For WAF use the kind printed with pretty stencil :^).
If the tweeters are different, make 'em match.
I'd personally only replace tweeters in pairs.

Was the new tweeter supposed to be 'just like' the one removed?
Yes it was. The whole tweeter housing has to be changed on the Focal 918 because they are so custom mounted. Wish they would have spent more on the tweeter than the custom mount.:)
They are the same model # also.
Im quite happy with the difference the new tweeter made. I dont notice a huge difference but I think because the old one was in such bad shape I was used to hearing that sharp metallic sound from my right the brightness has shifted more to the left. (much less than before though).
BUT my room has two windows with wood blinds on the left side and not much as far as covering the walls. The right side has wrap around sectional-couch and is open to another area. (no corner/wall)
With that being said I would think the left side would produce more echo/brightness right?
Im thinking I should focus on the back wall/reflection point and the left corner/windows.??
I would think before you go invest in Soft material like curtains and or Carpets need to get both tweeters running the same..My first action would be to make sure both tweeters exactly the same then deal with room next.....