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twogoodears wrote:

I learned nonetheless to use for my (limited) task (fine tuning my speakers and audio system in my music room) the great IVIE IE-30 R.T.A. and IVIE IE-20 white/pink noise generator

You do not need white/pink noise generators. You noise meter or RTA that has at least 0.25dB resolution and a single sinusoid signal. Take two of your drivers, parallel the axis, install microphone at listening position, feed one with sinusoid in the middle of crossover point, add the second driver in phase, slide the driver until you get max amplitude measured by RTA. You might reverse the polarity and observe the max drop amplitude – it does as it down faster. Your objective is to find both of the drivers to pros the same period and co-center the summits of their period at the same timing. There is a lot more to it but very brief search brings a lot

http://www.romythecat.com/Forums/ShowPost.aspx?postID=2899#2899

http://www.romythecat.com/Forums/ShowPost.aspx?postID=4463

http://www.RomyTheCat.com/TreeItem.aspx?PostID=4460

BTW, if GOTO do insist on first order then their position about alignment looks even more idiotic, as with first order the lobbing and cross-modulations between the channels are highest and time alignment shall be the topmost importance. I see on their drivers they marked the contact posts with different colors, which suggests that they feel that driver polarity maters – big fucking accomplishment!  How come that they feel that driver polarity maters but the drivers timing is not? Polarity is 180 degree of timing, so if the driver is 132 degree off then which polarity would it be? If they feel that timing is not important then let discard the polarity as well, in fact most of GOTO use I am convinced do discard the polarity. So, what we are talking about?

twogoodears wrote:

Theory sure is important, but experimenting also to confutate - to some extent - theories is what brings true advancements in every field.

I know very little about theory, in fact I never had any interest about it. I am applied audio practitioner: nothing more or less.

twogoodears wrote:

Anyway, I'll pay a visit to Goto's workshop in Japan in few days... will try to formulate the best questions (I'll possibly have the support of a translator) on the topics we touched (amps, x-overs 1st and 2nd order, active/passive, amps, power handling, fluxes, precision, and the like) and will report soon.

I would not ask them about it – what the point? They sell row drivers and this pretty much it. I am sure that some of the Goto users have more knowledge about Goto drivers, their capacity and way to use them then the guys who currently produce them.  Their ideas about playback systems are bogus and they do not believe in amplification. I have a local audio shop: Goodwin High End that according to them prefer only with customers who come to them from Yellow Pages. If a customer is completely clueless what the high-end audio is and juts come to them from “another planet” then they gladly sell to them anything that cost $50K-$60K, buttering an ignorant customer that what he bought was “high-end audio”.  I think Goto does the same, with exception of completely idiotic hypocrisy that no one hold them responsible… because they do not communicate on open market and insist to be Masonic colt. (Ming’s fantasies about GOTO sell 240 drivers per year I think are fantasies; GOTO hardly has 240 users in the world).

What I am talking about the hypocrisy I mean what I mean. GOTO claims first order but do not “believe” in phasing. Strange as the first order has Bessel curve and minimum phase distortions.  GOTO claims the ultra-light diaphragm is critical but they do not believe in amplification. The advantage of the ultra-light diaphragm cone to react to minimum current and do not “believing” that different amps have different capacity to care minimum current is the same as to deny existence of gravity. This all reminds me John Dunlavy who was a leading voice advocating impossibility that speaker cables have any different to the sound of loudspeaker. At the same time his company was selling the fance speaker cables…

So, what GOTO has: hypocrisy, stupidity or just talking advantage of the ignorance of own customers? I do not know but I am not in the business, thanks God, to define it. Someone from web was trying to insult me calling me as “individualist”. Well I take it as a compliment. If I take any of the GOTO drivers for the ride than I would leave aside the whole GOTO know-how and whatever they “believe” in. I have my own individualistic believes, the believes where there are no differences or even ambiguity between practice and theory, where believes are based upon what it is. The Ca

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