Heir Audio Tzar 90 and Tzar 350 Universal In Ear Monitors - Page 50

Quote:

Originally Posted by Inks 

No it's because I know of the expected results it's not a biased guess. This can be looked into later by Rin, he's far too busy with other stuff at the moment. I challenge anyone to simply listen to a W4, UE700,etc. With impedance added, the results are simply there.

Again, you have to do it in general.  So not only do you have to test for one IEM, you have to do multiple.  Technically, speaking, you'd have to do all IEMs - or show in some way it applies to all (this would be mathematical).  The more that come out the same, the better your argument stands.  Until you get all though, your argument remains a correlation, which generally isn't concrete enough.  Now go add some resistance to the Heir Audio 3.Ai or 4.Ai...  Tell me that's positive...  You've actually said the opposite yourself...  Remember, it's hard as all hell to show something true.  It's much easier to provide a counterexample if one exists (3.Ai, 4.Ai, et al.).

Inks using Rin as a reference to argue with people, talking in circles and not listening to what is being said? Color me shocked. 

Quote:

Originally Posted by project86 

Inks using Rin as a reference to argue with people, talking in circles and not listening to what is being said? Color me shocked. 

They are brothers...  Inks seems to always side with Rin, regardless if there is more to be explored before things are "final".  I don't see it changing.  

Quote:

Originally Posted by Inks 

I have to talk in circles because some seem to miss the point. I have yet to hear what variable is negatively affected? I'm all ears

You have to test them.  We don't have the equipment, you do.  I've stated many variables (so did Goodvibes), test them each independantly.  Show they are unchanged, or not undeniably negatively changed (way too many negatives in that statement).  If you want to get even more technical with it, do multiple tries to confirm and reconfirm.  Without the tests, we'll get nowhere.  No one should need to go into a circular argument unless they have no evidence...  That said, get the evidence, I'm sure you can.  For the most part, I agree with your statement that adding impedance can be helpful for the frequency spectrum.  Goodvibes has brought up a good point, one for which Rin has yet to post any evidence for.  

Quote:

Originally Posted by Inks 

I have to talk in circles because some seem to miss the point. I have yet to hear what variable is negatively affected? I'm all ears
I have made this case of impedance even before I knew of Rin LOL. I had actually suggested he add this data though he already had plans to.

Maybe worth to move this topic into a general thread. That way everybody who is interested (not me) can contribute 

As you have pionted out this applies to all EIM's so it might be worth having all the technical Savy Head-fi members add to the topic instead clogging up this thread.

Just my 2 cents

Quote:

Originally Posted by gidion27 

Maybe worth to move this topic into a general thread. That way everybody who is interested (not me) can contribute 

 

As you have pionted out this applies to all EIM's so it might be worth having all the technical Savy Head-fi members add to the topic instead clogging up this thread.

 

Just my 2 cents

Good point, it may be a good idea to leave out of this thread.  Apologies for the OT post.  I do want to point out that he just stated that he didn't say the bolded part.  Do you have a quote that would imply this (I remember something similar he stated, but couldn't find it)?  

Quote:

Originally Posted by Inks 

No I don't because every IEM has a different impedance phase nature, some will benefit some will not. I never said every IEM improves with resistance. The mathematical changes are based in this phase. TF10: use low OI. UE700: Use high OI
With the 4AI if you don't have a problem with a bigger 4k suck out which the IEM has and some don't perceive then adding resistance is an improvement

So can we agree that the amp should ALWAYS strive for the lowest possible output impedance for maximum compatibility? Then if you like the effect, add resistance to adjust the sound. 

Quote:

Originally Posted by Sorensiim 

So can we agree that the amp should ALWAYS strive for the lowest possible output impedance for maximum compatibility? Then if you like the effect, add resistance to adjust the sound. 

Can I disagree? Hehe.

Quote:

Originally Posted by Inks 

I completely agree w that Sorensiim, I don't see how one can go against that it makes for a versatile amp.
I asked Rin once again of the data outside of FR. He says even the transients get better w impedance for the beneficiary IEMs. The only negative result is that there's a bit more THD but the difference is tiny, like 0.1% lol. There's a reason why Etymotic under damps their ED driver so much w impedance. Matter of fact THD is actually worse when it's under damped, or at its lowest impedance of 8ohms before Etymotic adds resistance to it to make HF5/ER4P. Same applies to some multi drivers, TWFK is a prime example, one of the reasons why most are of high impedance of at least 50ohms.

Right, so we agree that output impedance should at all times be as low as possible? Great. 

FR can be "tweaked" by adjusting the resistance, some like the change with some IEMs. Great, tweak to your hearts content.

Regarding ETY... It isn't "their driver" it is in fact a commonly found vanilla driver. Non-propietary Knowles ED29689 with an impedance of approximately 10 Ohm at 1K Hz: http://www.knowles.com/search/family.do?family_id=ED/FED&x_sub_cat_id=10