GR Research Speaker Upgrade Review (Sierra-2EX V2)

[heflys20]

I dont support the language used here, but pretty much every other audio forum is garbage except for ASR ime. Audio related sub reddits are the worst as the vote system puts misinformation right at the top.

Ahhh...Reddit and it's pseudo-science centric audio groups. Makes for a good laugh now and then, but then I feel sorry for the people being mis-lead. Of course, being contrarian (logical) gets you downvoted to oblivion.

 

[PristineSound]

You folks noticed that he is getting desperately defensive across many social media platform?

 

[Gremlins]

Danny has a definition : charlatan

What is a charlatan? Do you know how they look like?

 

[Maxim-ICOM]

I have not listened to either speaker. GR Research made all of their modifications based on measurements and no listening tests at all.

It would be interesting to know why you missed such a great opportunity to confirm bad measurements by listening test?

 

[tineared]

It would be interesting to know why you missed such a great opportunity to confirm bad measurements by listening test?

What would that prove?
Then the argument would be that Amir is showing bias. Measurements don't lie

 

[Selkirks]

It would be interesting to know why you missed such a great opportunity to confirm bad measurements by listening test?

Will the listening test somehow change the measurements?

 

[Aperiodic]

Thought about wording: I isn’t it only an ‘upgrade’ if there is a measured and /or perceived improvement? If not, as seems to be the case here, it’s just a ‘mod’.

 

[Rick63]

I can't comprehend the concept of spending over $500 to decrease their performance and their resale value. Well, there are probably a lot of expensive cable believers that would do so.

 

[xray]

It would be interesting to know why you missed such a great opportunity to confirm bad measurements by listening test?

You cannot confirm anything with a subjective test other than the tester's opinion

 

[Everett T]

I get doing some mods, but not on speakers costing more than a few hundred, you start getting into the DIY speaker cost territory, and with a Danny mod you're already there, lol.

 

[amirm]

It would be interesting to know why you missed such a great opportunity to confirm bad measurements by listening test?

Tonality is not "bad." It is just degraded. Distortion is made worse however. If my ears weren't plugged due to lingering covid, I would have taken a listen.

 

[wwenze]

What would that prove?
Then the argument would be that Amir is showing bias. Measurements don't lie

But the argument is that Klippel measurements are lying

 

[PristineSound]

But the argument is that Klippel measurements are lying

I'm assuming that was sarcasm.

 

[Gary_G]

Got it 'Rong Research

 

[solderdude]

All the speaker needed were the tube connectors .... because they always seem to improve the sound.
Of course ... only the ones Danny sells. I set for merely $ 59.-

 

[G|force]

Got it 'Rong Research

How about Wrong Again Research? [WAR]

 

[Bruce Morgen]

All the speaker needed were the tube connectors .... because they always seem to improve the sound.
Of course ... only the ones Danny sells. I set for merely $ 59.-

...and remember, minimal copper mass makes those tube connectors superior, whereas humongous copper mass makes his speaker cables superior.

 

[Maxim-ICOM]

You cannot confirm anything with a subjective test other than the tester's opinion

But it is still important, as sometimes nice measurements are not what ears prefer.

Revel M106 Bookshelf Speaker Review

This is a review and detailed measurements of the Revel M106 bookshelf speaker. It was kindly purchased and drop shipped to me. It is not a new sample but came to me with full packaging and protective wrapper. The M106 costs US $1,000 each or $2,000 for a pair. It is only sold through dealer...

www.audiosciencereview.com

Wilson Audio TuneTot Review (high-end bookshelf speaker)

This is a review and detailed measurements of the Wilson Audio TuneTot stand-mount/bookshelf speaker. It is on kind loan from a member and costs around US $10,000 (varies due to color). I am not a fan of the way the front looks without the grill. The sides though sport probably the best...

www.audiosciencereview.com

If you look on graphs only Tune Tot loos terrible, but Amir wrote he preferred it over better measured Revels.

 

[Mort]

But it is still important, as sometimes nice measurements are not what ears prefer.

Revel M106 Bookshelf Speaker Review

This is a review and detailed measurements of the Revel M106 bookshelf speaker. It was kindly purchased and drop shipped to me. It is not a new sample but came to me with full packaging and protective wrapper. The M106 costs US $1,000 each or $2,000 for a pair. It is only sold through dealer...

www.audiosciencereview.com

Wilson Audio TuneTot Review (high-end bookshelf speaker)

This is a review and detailed measurements of the Wilson Audio TuneTot stand-mount/bookshelf speaker. It is on kind loan from a member and costs around US $10,000 (varies due to color). I am not a fan of the way the front looks without the grill. The sides though sport probably the best...

www.audiosciencereview.com

If you look on graphs only Tune Tot loos terrible, but Amir wrote he preferred it over better measured Revels.

You missed the key point and it doesn't support your subjectivist conclusion.

"One wonders how much better these would sound if they had had preserved all of this and at the same time didn't have the design errors."

 

[RickS]

…I did some backgroud research on Danny because I was so angry about this. For those here who don't know. The "G" in GR Research is Jeff Glowacki, the man behind sonicraft, which is the company that imports Sonicaps. Danny and Jeff were business partners, Jeff was the engineer, Danny was the business/marketing guy. Danny tries hard to hide this info, but don't get caught up in this very obvious scam. There are only 2 places to buy sonicaps, at sonic craft's own website and at GR. Of course Danny raves about these capacitors, he is probably paying $1-$2 for these, massive markups and massive profit margins.

The info is out there regarding Glowacki and Richie, not all of it has been succesfully suppressed yet.

Product Review

https://techtalk.parts-express.com/forum/tech-talk-forum/27268-dayton-dc160-8-6-1-2-classic-woofer-in-line-array?p=346826#post346826

Thanks, this explains a lot.

Danny clearly lacks the technical background to be able to discern the difference between science and pseudoscience. His promotion of pseudoscientific nonsense is the most troubling part as he mixes in enough science to mislead other audio enthusiasts. This also explains why GR speakers are hit or miss. Without fully understanding good engineering practices, he gets inconsistent results.