Will I notice improvement with crossover mods?

The H881 did not fit in my Hales so I decided to order the Seas Millenium as they are the correct size(110.4mm) to fit my Hales and they are supposed to be quite good. They are costly however. As I crimped the leads to my tweeters I can always try the Millenium and if they don't work for me I can always return them.I was told by someone who did what I'm about to do with my tweeters but he said he removed the .33 ohm resistance in the tweeter area. I hope it will not be neccessary for me to do the same as it would be a real job to open up my Hales to get back at the crossovers.

Will Martin-Logan Ascent i benefit as well?

1000 hours play on my Hales with the crossover mods with about 300 hours on the Millenium tweeters I installed and the speakers are sounding very very good. I'm blown away actually. I never thought the results would be as positive as they are. The speakers have an entirely new sound which I love. There is more bottom end without boominess, the midrange is sounding sweet and the new tweeter gives the speaker a whole different type of sound which is extremely pleasing. The tweeters are very detailed but lack the slight harshness of the Hales stock tweeters. The Millenium tweeters are much better sounding and they change the entire sound of the whole speaker. I never realised just how much the tweeters affect the bass response but it does. The bass is now different but in a pleasing way. All in all I must say I do not regret the crossover mods or tweeter upgrade in any way. I have a much much better speaker in return and it seems as if they are getting better daily!! I'm having fun. My wife misses me however but she knows where to find me.

I should add that the Millenium dropped in nicely without having to change my modified crossovers. I didn't even need to remove the 0.33 ohm resistance in the tweeter section. It was as easy as installing a tweeter that fit in nicely.

Mitch just let me know when you get tired of them. I will gladly take them off your hands.LOL

I am sure your wife will thank me!