Audio Science Review = "The better the measurement, the better the sound" philosophy

Amir I see you still haven't addressed my comment about Nelson Pass.

@djones51 I thought our aural memory was very short. 

I understand that to be true. I'm not a fan of A-B testing. I think you have to optimize each setup and listen for a long time. In the end you'll be able to learn which system you prefer but I wouldn't say you'll know which one is better, too many variables. Unless there are gross differences.

I had a boss once decades ago that was obsessed with data.  He just wanted to test and test.  It didn't seem to go anywhere.  He wanted more data and just could not finalize anything.  Testing for the sake of testing is pointless.  It has to mean something.  Compare the data to listening tests or what?  Measurements by themselves mean nothing.  But to conclude something does not sound good because the measurements say it doesn't is circular reasoning.  That is because the key ingredient to how it sounds is to listen to it.  Measurements are a means to an end.  How it sounds is the end- the final word on the subject.  

Kind of like the old adage, " There comes a time in the life of any project when it is necessary to shoot the engineer and start production."

@amir_asr ..."The kits he sells are hugely overpriced. None of his DIY solutions are competitive. By the time you waste all that money on his upgraded parts, you could get far better performing speakers across the board.", unquote.

True Story: As a curiosity test - I helped a close friend who paid for Danny’s service to analyze one of his speakers, test it, to design and layout all new crossovers, parts, connectors. In the process the speakers were converted from a 2.5 way to a 3-way crossover layout on a 20 year old speaker. All drivers were re-coned in the process. I use to build speakers for a living and designed a few myself, fwiw. The Grand Mozart speaker I’m referring to is featured on one of Danny’s videos.

About 1/5 the cost of a new comparable pair. Sounds notably better than stock. Buddy is super happy with the service, design, and parts. Turned out really nice, more musical too. Buddy is quite proud of himself taking the chance to test out Danny first hand.

Nothing better than the measured value of a happy customer.

@tonywinga 

That is because Danny listens to the products.  He also understands and explains what the measurements mean and how it affects the sound.  At least on the videos that I watched.  And his upgrade kits make sense.  Plenty of DIY'ers do the same things.

Once more, he does NOT listen to any speaker he upgrades.  Ever!  He says this in videos from time to time.  Even if he does not, watch one of his upgrade videos.  All he shows are crude before and after frequency response measurements and that is it.  You are supposed to trust him that the sound got better.

As to his upgrades making sense, they do most of the time from technical point of view.  But not remotely on cost basis.  He also detests EQ which can do the same thing for free.  As member said, follow the money.  EQ doesn't make him money so he doesn't like it.  What proof he provides?  He just knows that it doesn't.