Incompetent Internet Reviewers - Responses

Alan March wrote:
Its not what I asked for.

we need to see the measurement at 1m from the front of the speaker for both sample A and B.

I can only find 1M measurement of Sample A before modification. Sorry.

But 1m measurment and PR NF measurement of Sample A are similar enough.

If the distortion occured from the back, it can ba leaked by tweeter unsealed gap, and PR diaphragm.

Jason K wrote:
I can only find 1M measurement of Sample A before modification. Sorry.

But 1m measurment and PR NF measurement of Sample A are similar enough.

If the distortion occured from the back, it can ba leaked by tweeter unsealed gap, and PR diaphragm.

....mmmmm.......

The nearfield PR measurements are not relevant and very easily made different by very small changes in distance to the microphone and its position.

No, sorry you are just speculating. Its meaningless.

So what are you saying? That there is not a simple on front axis direct comparison between the two speaker samples?

Alan March wrote:
....mmmmm.......

The nearfield PR measurements are not relevant and very easily made different by very small changes in distance to the microphone and its position.

No, sorry you are just speculating. Its meaningless.

So what are you saying? Do you not have a simple on front axis direct comparison between the two speaker samples?

Other measurment datas uploaded from him are after modification.

Before modi, I don’t have it.

Jason K wrote:
Other measurment datas uploaded from him are after modification.

Before modi, I don’t have it.

Right, so you cannot actually demonstrate that there ever was a significant difference between the two speaker samples before he starting messing around with them?

Alan March wrote:
Right, so you cant actually demonstrate that there is a significant difference between the two speaker samples

Yeah I can’t demonstrate that, but significant higher distortion at sample A was still exist..

Jason K wrote:
Yeah I can’t demonstrate that, but significant higher distortion at sample A was still exist..

Did it?

Show me the measurements to prove it.

Show me a simple, on front axis, direct comparison between the two speaker samples

Alan March wrote:
Did it?

Show me the measurements to prove it.

Show me a simple, on front axis, direct comparison between the two speaker samples

I said it WAS exist. Look that Sample A data. Almost 1% at 400% at 85dB. It isn't designed feature, is it?
Measuring now is meaningless because he lowered the distortion.
Can you guess why that sample only have higher distortion? You said it would be modified sample, But I know it is not.
Several times I asked you, is it randomable?
I'm just saying what I know.

Alan March wrote:
We dont hide the issue, its shown in the measurements on the product page We show -46db / 0.5%

However we agreed with Purifi a better way to mitigate this issue. It can be improved further, but Im not going to discuss how 😉 I am sure you can understand why.

And this is 96dB data. Also 2nd HD is not problem while Sample A has problem at 85dB at the same level of distortion 2nd, 3rd both.
I think that sample's distortion is not from the magnet - frame resonance distortion.

Jason K wrote:
I said it WAS exist. Look that Sample A data. Almost 1% at 400% at 85dB. It isn't designed feature, is it?
Measuring now is meaningless because he lowered the distortion.
Can you guess why that sample only have higher distortion? You said it would be modified sample, But I know it is not.
Several times I asked you, is it randomable?
I'm just saying what I know.

Jason, with respect you havent shown any appropriate measurements that demonstrate what you claim.

Whats going on at the PR is irrelevant and the nearfield measurements can be highly variable with very small changes in microphone distance and position.

You dont listen at the PR, you listen in the far field. You need to show a pair of directly comparable measurements from the front axis of speaker A and speaker B. Preferably at a distance of at least 1.5 times the longest baffle dimension.

Why dont you have this, why was this not done? Its really basic stuff.

I dont make guesses, I work with data. I dont know what you guys did or did not do, however I do know the reviewer lied about the speaker wiring. The allegedly missing speaker mount is also totally infeasible. The bolt would have just fallen out.

So excuse me if I have little faith in what I am being told. I am quite confident the speaker was messed with, opened, bolts tightened etc. Just look at the other crazy things the reviewer tried. I really hope for the customers sake he didnt damage the tweeter.

If this amateur reviewer comes out attacking industry professionals he had better make sure he has a damn water tight case.

I dont wish to be rude but this nonsense has caused me a lot of trouble over the past few days. So far all I see is incompetent amateurs.

The problem was caused by the reviewer dismantling and in his ignarance damaging the set up of the speaker.

He is now trying to save face by attacking us.

Jason K wrote:
…
If the magnet - frame resonance is the main reason, how about adding damping sheet on the frame or adding pressure on the back(magnet). To be pressed by hard stuff when assmble the woofer.

I believe that to affect the system, one needs a stiffer spring to raise the resonant frequency.
So it needs a thicker/stiffer basket, or a some other mechanism to either lower the excursion, which generally also raises the resonant frequency.
(But it possibly could lower the amplitude at the front, which what we generally want to have happen.)

Jason K wrote:
…
Can you guess why that sample only have higher distortion? You said it would be modified sample, But I know it is not.
Several times I asked you, is it randomable?
I'm just saying what I know.

I believe that it is not totally out of the question that shipping vibrations would be way more than years sitting in a room.
There is also humidity and temperature, and wood sweeling and shrinking that could affect how the driver is couple to the front of the box.

So it could be random with “god knows what” (GKW) the shippers are doing”, and GKW is happening with the wood in the between assembly and where it ends up. Even in some harsh climates, it is common to run humidifiers in the winter to prevent the wood in older homes cracking.

So a bit of shipping and a bit of wood movement could add together if one was unlucky… But that is totally a guess at what might be possible.
There is probably more possibilities, but I can only think to an elementary level.

Alan March wrote:
Xxxx has an agenda and a massive problem with me because I had the audacity to take him to task on his methods and lack of scientific rigour. …

Xxxx has a massive problem with Erin because Erin is doing a so much better ,,,

Note how Erin has engaged and interviewed many industry luminaries? .

Well I do not want to guess at motivations, and a few people have left (yourself included), so maybe you’re right.
I generally try to only talk positively, or be silent…. So:
Erin appears to make it a bit tough not to like him…. hence it seems like there is a disconnect between my perception and some forum owners.

Alan March wrote:
Yep, no problem. We are overwhelmed with orders at the moment, but Im sure I can find time to chat 🙂

Just have R.C. go ahead and start step 1, as I left the plank of Myrtle leaning outside of his office back in Feb.

I also picked up an Octo DAC8 Pro and an RME ADI Pro, and a new (used) preamp… so between that, and work, I am slow enough to not worry about manufacturing being currently overwhelmed.
(My current speakers are 38 years old in Sept… so they will almost certainly last :ROFLMAO:)

Holmz wrote:
I believe that to affect the system, one needs a stiffer spring to raise the resonant frequency.
So it needs a thicker/stiffer basket, or a some other mechanism to either lower the excursion, which generally also raises the resonant frequency.
(But it possibly could lower the amplitude at the front, which what we generally want to have happen.)

I believe that it is not totally out of the question that shipping vibrations would be way more than years sitting in a room.
There is also humidity and temperature, and wood sweeling and shrinking that could affect how the driver is couple to the front of the box.

So it could be random with “god knows what” (GKW) the shippers are doing”, and GKW is happening with the wood in the between assembly and where it ends up. Even in some harsh climates, it is common to run humidifiers in the winter to prevent the wood in older homes cracking.

So a bit of shipping and a bit of wood movement could add together if one was unlucky… But that is totally a guess at what might be possible.
There is probably more possibilities, but I can only think to an elementary level.

I think its important to note that I was not contacted directly about any of these alleged distortion issues, I was just sent through a 3rd party snippets of (highly improbable) information as it was apparently being discussed in Korean forums.

The owner eventually contacted me and we agreed he would fix the binding post air leak himself and I compensated him for that. At no point was I asked if the speakers should be returned under warranty for examination or repair. As far as I was, and still am aware, the owner is happy with the solution/outcome.

We then, some time later, get this Nuyes guy making all sorts of claims on Audio Science Review, including lies about the cabling.

So whilst its not beyond the realms of possibility something got damaged/changed in transit, we know this guy hasnt told the truth, hasnt been in contact with me to discuss it, and has subsequently proven that he doesnt have the necessary technical knowledge to be playing around in this discipline.

So as far as Im concerned he is also not telling the truth when he says he dint mess around with or disassemble the speaker.

We have had speakers shipped all over the world. One pair has been to Denmark, to Germany, back to Denmark, back to Melbourne (where it was considered one of the best sounds at the HiFi show), back to here in Albany and its currently being reviewed in Sydney at Australian HiFi. We have already had great feedback on that BTW. No problems showing up.

A stiffer spring will indeed raise the resonant frequency, however that could just put it in a different place.

Holmz wrote:
Well I do not want to guess at motivations, and a few people have left (yourself included), so maybe you’re right.
I generally try to only talk positively, or be silent…. So:
Erin appears to make it a bit tough not to like him…. hence it seems like there is a disconnect between my perception and some forum owners.

Just have R.C. go ahead and start step 1, as I left the plank of Myrtle leaning outside of his office back in Feb.

I also picked up an Octo DAC8 Pro and an RME ADI Pro, and a new (used) preamp… so between that, and work, I am slow enough to not worry about manufacturing being currently overwhelmed.
(My current speakers are 38 years old in Sept… so they will almost certainly last :ROFLMAO:)

Well Amir has not been backward about criticising me, so its a fair exchange IMO 😉

Erin was just sharing his knowledge with the community at ASR. There was no commercial conflict with Amirs activities, thats a total red herring posed by Amir so he had an excuse to ban him. It was all about Amirs ego and narcissism.

Cool, it will be an interesting project. Had a chance to play with the Okto yet? Its an interesting product.

Alan March wrote:
…
Cool, it will be an interesting project. Had a chance to play with the Okto yet? Its an interesting product.

Just working on the RME.

I had computer noises coming out when the RCA analogue inputs and USB were connected.
They went away when I hooked up RME XLR Outputs to the Preamp to help ground through the XLR Pin-1.

The phono is pretty hummy with the RME in the rack… so I have some chin scratching to do.
Then more chin scratching on active XO and Octo side.

The Octo, literally, has not even been unwrapped from the box it left Prague in…It defenestrated itself onto the floor of my study.

And next month we have a guest… so some concerts at convention centre (2 on the same day and time) and a heap of other things, so I am not overly hopeful on doing much except for playing cards and drinking coffee. 😎

For anyone thats interested, Linkwitz covers this resonance issue quite succinctly

https://www.linkwitzlab.com/frontiers_2.htm#N