Axiom Home Page Forums General Discussion Technical Questions Tweeter differences

The lifetime depends on how loud they're played and for how long. 20 years may be pushing it. The fluid can be replaced but you have to disassemble the tweeter and put in the right amount. Too much and she'll blow. Too little and she'll ignite. Axiom uses a precision-calibrated pump to get the perfect amount.

Hmmmm. Well that sounds like an unlikely step , if it is the ferrofluid. And the cost to put new tweeters in he might as well just grab some m5hps from b stock store.

We ll start with the receiver swap and serial number check for half inchers.

His room is also quite narrow and his left channel is missing a wall for the first reflection ( think I’m stating that right ) so he well may be way out of phase but it’s only the tweeter that sounds poor. Midrange is outstanding. And bass is authoritative but unrefined in his room.

Guess I was wrong. V3 tweeters are 79$ Canadian each. So actually pretty reasonable. Would v3 tweeters work ok with ti crossovers?

I don't know about v3 but apparently v4 is backwards compatible.

Kodiak, the half-incher has 3 legs on the diffusing lens whereas the one incher has 4 legs.

Oh good info !!!

Just checked mine. 4 fins surrounding the tweeter.

I’ll get my brother to check his.

Thanks for that. That’s a real nice easy way to confirm that.

How did you find that out? An old post or something? I searched for more info on the old tweeters but can’t say I used good key words or not.

Anyway, Thankyou. !

I know many Axiom things. Some things, Axiom doesn't even know. Moooowaaaaahahaha!

My brothers m60ti have 4 fins surrounding the tweeters. So no half incher there. We will try amplification change next to see if that softens things a bit. Again, it’s a distortion and breakup issue at higher volumes, we are not trying to make them sound “less bright” but just want them to handle a reasonable volume without the breakup, as I know they can handle it, evidenced by my own tweeters m60ti.

Maybe it is the ferro fluid reaching its lifespan….we ll see.

This whole discussion sent my brain down a deep, dark path as I thought about the dynamics of ferrofluid in the tweeter's magnetic gap. There's a lot of parasitic stuff going on electrically and mechanically as that fluid moves around. A speaker designer just can't win unless s/he places tight boundaries on the intent of the design.

Good morning, sorry to set you off down down the rabbit hole of ferro fluid!

Well here’s a question to keep you in the darkness of despair……

It sounds tricky to get fluid tolerances just right and it’s a system where it’s days are possibly numbered in terms of maintaining quality…..( 20 years or more is pretty good…) but there must be a good reason / advantages that a designer would choose that? There must be sonic and or mechanical benefits , one of which I’m guessing is cooling and or damping.

Now I’m curious what other tweeter designs are out there , how they work and the benefits of those choices designers have to make. For example why does Klipsch choose a horn over others? ( just picking the obvious) or ribbons come to mind…..