Will I notice improvement with crossover mods?

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!

"anyone know of source for cross-x mod for aerial 10-t.thanks,bill."

Bill, I just bought an Aerial CC3B. I'm an incorrigible tweak and e-mailed Aerial for info in the crossover.

If the 10-T's crossover is as complex as the CC3B's, it's complex indeed. All 4 filters are 3rd order and there's at least one tuning circuit in the midrange. Aerial told me they've been using the Axon polypropylenes forever in their crossovers, and they're not bad-sounding at all. My crossover has 6 Axons on it, 3 33s, a 12, a 4.7, and a 3uF. The 3 and 4.7 are series caps for the tweeter, and I've replaced them with auricaps. I bypassed the 2 33uF midrange-series caps (with good caps I already had) but probably I won't replace them. Mine is full of Bennic-brand resistors and as soon as I'm satisfied about identifying them, I'll be replacing some of them.

I THINK my CC3B sounds a little cleaner, but my aural memory is very short--I have trouble identifying some differences in immediate A/B comparisons.

Are your 10-Ts early or late? I understand the 10Ts were upgraded seriously during their lifetime.

I'm glad to hear that you're still "foaming at the mouth" over your "new" speakers Mitch. Given that you started off with what most would consider "better than most" passive parts in your speaker, can you even begin to fathom how some older but very well designed speakers using lower grade wiring, electrolytic caps, scrawny inductors, etc... would benefit from such an approach? This is why i've encouraged others to find good basic designs and build upon what was already there, much like what you did. With designs that are even older than yours, the results can be even more drastic and staggering in terms of improvements. Sean
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