Does measurements really matter?


This video by Thomas interview Harley is one the best way to understanding the topic of measurement  

 

 

128x128lordrootman

Timely: In his latest GR Research YouTube video (posted today, Wednesday 3-23-22), Danny Richie examines the Magnepan Mini send him by a customer. In the video you see not only how Richie evaluates a loudspeaker---and designs a cure for it's ills, if any---but also a tutorial on comb-filtering, a design challenge inherent in all planar loudspeakers. 

Finding the video is real easy. Go onto YouTube and do a search for GR Research. The latest video will be first in line. A free education in loudspeaker design! 

Measurements and specs mattered when I started in 1982.  In 2022 I'm way less concerned, but they certainly have a place and serve a purpose.  I suspect as a deterrent, they help keep manufacturers honest.  

hedwigs: I sure can answer that question, but here is probably not the place?   Maybe email me at brad at lonemountainaudio dot com?

The short answer, appropriate for this forum, is that the major difference is just the woofer; the mid and tweeter are the same but a lower power version in the 40s (vs 50s on up).  So the major difference will be clarity, definition and roll off point of the low end (below 380Hz), dynamic range of the entire system and maximum SPL level.

Brad   

Knotscott:

I don’t think specs make manufacturers honest in any way shape or form. I think they are viewed as a marketing tool by most. Manufacturers cheat and manipulate specs as a specific effort because they know if a spec is "bad", it affects sales. They know specs are perceived as a value of product performance, not this impartial number that helps you evaluate it. Frequency response for example, a total free for all: some don’t even list the plus or minus so you can say anything you want. Efficiency, you can write this spec in many different ways, this 1W/1M spec can be found with different methods of measurement (what frequency its taken at etc). The more you know about specs, the easier they are to manipulate.

Those with a lot of experience in audio know that a few specs rarely relate to actual real world sonic performance. What good is a wide frequency response and high efficiency if distortion is extremely high? There are so many factors (such as room or source or?) that affect the sound quality that trying to assess a speaker or a amp based on specs is like deciding what car is safe based on its skid pad numbers or its braking distance. It MAY be important but there’s a lot to consider beyond those specs.

Brad