You know damn well that all that data is between my ears, and as such is meaningless to you. It is my opinion based on my listening and no more. Take it for what it is. The same grain of salt i mentioned in my previous post.
I don’t give you, or wesayso, grief for your preferences, and you should give mine the same respect.
You keep throwing charts & graphes at me, but you all know, even in the back of your mind, that they are only a rough guideline, useful in development but in the end the only important thing is if the system brings you litening pleasure — the hifi connects you to the emotion of the music.
I can only respect your choices if they give you satisfaction, why can’t you respect others if their boat is not rocked don’t? There are a zillion different hifi components and for a reason. Each person has to make the choices that best suit their preferred compromises. And the TC9 does not fal into tha category for me.
dave
You totally wrong man and hate to look bad in discussions, we never didn't respect what your ears preference was, we just didn't agree much and especially not the way to get forward, thats why the dicussions in those threads.
And yes there are a zillion different hifi components and in this thread they are mostly of low objective distortions or/and the rest will probably be DSPed away and give us huge satisfaction, so please notice stamp satisfaction and thereby respect us and stay away unlesh you help in constructive way.
I remember a couple of times when I mentioned my Jordan VTLs, Dave repeatedly told me they were crap and showed me sims of the ripple, sims mind, no other evidence at all of any kind, he is biased against Jordan speakers for reasons which are probably obvious to most, he is a very biased chappy, all's fair in love and war and business.
Could be the other way than Jordan ripple was much too low for his mood to represent his preference of a distortion-factory put in a box measured by his ears.
We never know 😀 what we know is we disagree method...
We never know 😀 what we know is we disagree method...
I hope its enough, its considerably better than mk1 where the drivers mount flat on a square baffle 🙂
TNT said:
For now they are resting on a flexible gasket and screwed tight, so semi rigid I assume. I have gaskets that will be installed when all is done, made out of VS10 viscoelastic foil which will be glued to the baffle, and drivers glued to them. But driver-driver distance is practially zero so they wont be fully independant from eachother.
The TC9 basket is made out of plastic, and isnt rigid in itself so... Time will show 🙂
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Might have to look into that 🙂
I am inclined to make a sensor that will record vibration and test with that, but that wont happen soon though.
Certainly hope so! Mk1 was a fast and fun build, with many simple attributes, but they surprised me and have given me audible please for a long time 🙂
Harald, see my repsonse to TNT. The TC9 have a flexible basket so one cant really make it "firm/fixed". I am currently undecided on how they will be fastened in the end but I do have material on hand for both scenarios 🙂
Mmm. But then, there are these things called exciters. It kind of invalidates that text is seems to me. At least to some degree.
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Measuring Vibration with Accelerometers - National Instruments
https://www.bksv.com/media/doc/br0094.pdf
Single-Point Vibrometers - Precise & Intuitive
Maybe you could borrow a system from some company or tech school? School project?
https://www.bksv.com/media/doc/br0094.pdf
Single-Point Vibrometers - Precise & Intuitive
Maybe you could borrow a system from some company or tech school? School project?
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Please note the basic difference between viscoelastic and soft gaskets with regard to vibration transmission, resonance and damping.
Linkwitz's examples above did not include for that option. Vandersteen (ref. white paper), Respons and others succeeded with viscoelatic barrier.
Linkwitz's examples above did not include for that option. Vandersteen (ref. white paper), Respons and others succeeded with viscoelatic barrier.
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First line is now fully populated and playing 🙂
There is definitely a difference, a lot more "body and tactile" in the LF range.
My motivation to cast cabinet #2 grew a lot tonite 🙂
There is definitely a difference, a lot more "body and tactile" in the LF range.
My motivation to cast cabinet #2 grew a lot tonite 🙂
Thank you Byrtt - 2nd time around should go smoother and I hope to cast this weekend or next week 🙂
I need to correct a few of the EG-pucks on the first cabinet, a group of about 4 chambers have a flaw. Apparently the rear liner didnt sit flush up against the holes when casting the EG-pucks, allowing EG to compact out the rear and towards the side panels => less EG to form the puck, a lot thinner. This section also appear to be disconnected from the EG-matrix as it sound "hollow" when tapping on it.
It should be an easy fix though and something I'll deal with next time I mix up a batch.
I need to correct a few of the EG-pucks on the first cabinet, a group of about 4 chambers have a flaw. Apparently the rear liner didnt sit flush up against the holes when casting the EG-pucks, allowing EG to compact out the rear and towards the side panels => less EG to form the puck, a lot thinner. This section also appear to be disconnected from the EG-matrix as it sound "hollow" when tapping on it.
It should be an easy fix though and something I'll deal with next time I mix up a batch.
gents, these quarrels are not productive
main reason is that two completely different things are being mixed up, intentionally or unintentionally
one thing is objective verifiable measurable data, the other is subjective preference
well, yes, music listening is form of an art form, where personal preference matters, like for other forms of art
I may not like picaso, i even consider it garbage, worse than 4 year old playing in preschool with brush and colors
but that should not mean i will mention it at every occasion and trash everyone who goes to art gallery to see his paintings
dave, what happens in your head is you personal thing, and we have no idea what is going on there, and we do not care
when one is on the mission on designing speakers, it is helpful to stick to some objective facts as to judge the process, say if speaker has flat response or not...everyone agree that speakers should have flat fr response,
its easy to measure, easy to compare two or more drivers and so on
one does not need to worry at that point what is going on in someones head
when selecting drivers, measurements are important to reveal breakups, ringing, or other nastiness
when optimizing crossover, again, measurements are important, i would not rely on hearing to judge phase, distortion, impulse response...
i can certainly hear the speaker beaming, but how severe it is, only measurements show that
again, what is going on in someones head is irrelevant at this stage
if speaker beams like crazy, measurements will show it
if there are nasty breakups, measurements will show it
to measure is to know
then, if you personally prefer some aberrant beaming, ringing fullrange, its ok, its your choice
on the other hand, if you do not like well behaving neutral sounding speakers others used repeatedly with great result, keep it to yourself
otherwise you are loosing credibility because you can not back it up with any data
And at least a half-dozen locals who heard the same speakers so not just in my head.
dave
So, a half-dozen people heard the same speaker in a crummy makeshift box and thought the same thing as you?
But I think, by now, a lot more than a half-dozen told you otherwise...
People who used some well-thought out designs.
But since you don't believe in data, it's irrelevant, right?
I'm sure you have some dots to paint for some gullible customer.
Why stick around and poison this thread?
I stay away from the kool-aid drinking threads about MA drivers and the "enabled" system you developed... maybe you should also do the same with threads like this one... and everyone could enjoy his/her nice day.
Hey gents, let's be civil and not polute line array thread with enable stuff
My post was in no way to be disrespectfull of ones opinions and beliefs
I way trying to be constructive and propose solution
My post was in no way to be disrespectfull of ones opinions and beliefs
I way trying to be constructive and propose solution