True...
thatdoes matter when you have a pen and paper before making iem. Just calculate well enough within parameters and these thing align pretty well. Fine tuning takes little bit of time and you are done with a good pair of IEM.
The thing is that....
Making a pair sounding nice is easy
Making a pair which performs nice is easy
But doing both at same time is very hard. You have to break conventions there.
@vitaliy belo tia driver is full open tweeter rather than normal top firing driver, my guess is that, there was no sonion estat/electret driver when he actually made the tia driver. And it works way better as it doesnt induces peak, just pure bliss......I have U12T and U18T(sold to my friend) and I can vouch for that.
Shure SE846 low pass might be the greatest subwoofer ever made, and I am serious. Even though it is old, it still outperforms everything in bass I have listened to.
@FullCircle Noble savant was true example of how less can be more(I think he was inspired by Ferrari, its their stuff). Savant is something deep to my heart that's why I made the Final 2(just to improve the savant even further while keeping dual driver platform)
@piotrus-g FIBAE Black inspired me to do all this weird funny things recently. I dont know why the Helmholtz resonator bass seems to be very different. Its like Banana Moonshine, its very smooth on palate(like a single BA bass), but then hits very hard as it goes down(resonating bass). There was something with the bass that is not explainable but I will try as I am from science field and I kinda know how Helmholtz works.
You get the primary impulse or bass signal from single BA first, followed by zero lag bass boost from resonator which seems to follow a time rule on paper(undistinguishable) but you can sense that bass boost is actually followed by original bass signal but also stops in time with original signal.
So when bass hit
Light Bass -> separated distinguishable powerful decay
But as bass signal stop, the decay stops as well and doesn't go further. Which is a hard feat as it is.
And last is etymotic ER4S(the king)
While I used to vouch for Asuis(especially this) and Apex(this I felt like a nice tuning filter, which made sense) when I bought U12T, but not now, as I can reduce pain inducing pressure from every signal component just by altering how sound interacts and flow.
OK back to impulse, when you know how you are going to end up while tuning, these parameters can be then fine tuned, so it is little time consuming but worth it.
It becomes PITA when you do it like me and
@Jedrula1 .
Shifting mm changes phase, time and space domain like driver dont give a ****. They want to screw you hard.
And it doesn't seem so nice when I say drivers to my colleagues here....they want to listen transducer from my mouth which I never speak to let them feel burn