list of speakers

@grislybutter You possess more knowledge in the realm of audiophiles, and you're likely aware of how manufacturers measure and publish frequency response (FR) performance data. I'm uncertain whether they use an acoustic anechoic chamber or send their products to a chamber built to standards for testing. Hence, credible reviewers conduct independent measurements for reporting purposes. For instance, Audioholics has performed measurements in an open space at a certain elevated position to simulate a free-field condition and minimize ambient noise. Stereophile, to the best of my knowledge, tests speakers in an anechoic room, though I'm unsure if it's built to calibrated standards. Andrew Jones, on the other hand, has utilized simulation and modeling programs to calculate frequency response in a simplified, rectangular room, considering the known directional characteristics of the speakers, among other factors.  

The frequency response is a crucial criterion influencing my purchase decisions, which is why I suggest including it. I frequently cross-check with FR data measured and published by credible sources. Occasionally, I notice deviations from the manufacturer's published data. In such cases, I believe it's essential to use your best judgment in selecting the source for reporting and always provide references to avoid any potential misinformation.

@lanx0003 It's reassuring that you didn't see a lot of deviations. 

I found a site, with the help of Erin's Audio Corner:spinorama.org - with a lot of models!

And you overestimate what I know :)

But I am using my ignorance as a strength, I know what beginner's do: very little. 

I overlook Erin's Audio Corner, whose state-of-the-art Klippel measurement does not rely on anechoic room either as claimed due to the nearfield mic. placement.  Thank you for bringing the spinorama site to our attention.  Yours is still a great supplemental site of it but, as a matter of fact, yours contains more information.

One crucial point I'd like to emphasize is the lack of attention to soundstage (SS) measurement on various audio sites. However, I believe a close approximation can be found in Erin's horizontal/vertical polar plots, which consistently align with the perceived soundstage of speakers I've either owned or auditioned. Consider incorporating this data as a reference to create and report a Soundstage (SS) index. For instance, based on Erin's measurements, the horizontal dispersion range for the Wharfedale Linton I owned is approximately 140 degrees. By dividing this value by the 180-degree plane, a Soundstage Width (SSW) index could be devised, resulting in 0.78. The index would range between 0 and 1, with a higher value indicating a better soundstage. Please let me know if you would like to explore this idea further. I believe it could be a valuable contribution to the good of the community.

@lanx0003 this is better than what I expected. I am learning a lot from you. And this is exactly the direction I wanted to go: to translate raw and scary numbers to adjectives and comparable rankings that beginners can use to educate themselves and make somewhat more informed decision, try speakers with more confidence. So, in short, yes, absolutely, I want to explore it further with you, properly credit sources and contributions and expand my database with more useful features.

I am getting my head around what you wrote and how I can use that data.

@grislybutter Great.  Let me expand my preliminary investigation of the SSW index to include all speakers that have polar plots, and correlate them with either reviewers' assessments of the perceived SS width or my own experiences. If you could provide me with the model names column only, I will input the index directly. This way, you can easily incorporate and sort the index into your spreadsheet (assuming it's in Excel), saving you time and effort. You can cross-check the index with your perception to ensure consistency before accepting the data.  You could send the model name column excel to my personal email cjlan01@gmail.com.  Thx. / CJ