The one thing that I find interesting is it is all about spec’s (measurements). He talks about frequency response, impedance, etc, which are indeed important, but I have found spec’s don’t tell the whole story and you have to use your ears to make your choices. Sound is subjective, and what I like, others may not and vice versa. The other issue I have is the interaction of specs. Let’s just use frequency response and impedance. The two interact but he’s not talking about that, and I’m not sure you can relate a correlation of the two as to how it affects sound. Bottom like, if he can make a living doing what he does, and people are willing to pay for his services and knowledge, and they are happy with the results, more power to everyone. I agree with what has been said, By the sound you like from the start, not something you have to have altered to get there.
How good is the crossover in your loudspeakers?
I just watched a Danny Richie YouTube video from three weeks ago (linked below). Danny is the owner/designer of GR Research, a company that caters to the DIY loudspeaker community. He designs and sells kits that contain the drivers and crossover schematics to his loudspeakers, to hi-fi enthusiasts who are willing and able to build their own enclosures (though he also has a few cabinet makers who will do it for you if you are willing to pay them to do so).
Danny has also designed crossovers for loudspeaker companies who lack his crossover design knowledge. In addition, he offers a service to consumers who, while liking some aspects of the sound of their loudspeakers, find some degree of fault in those loudspeakers, faults Danny offers to try to eliminate. Send Danny one of your loudspeakers, and he will free of charge do a complete evaluation of it's design. If his evaluation reveals design faults (almost always crossover related) he is able to cure, he offers a crossover upgrade kit as a product.
Some make the case that Danny will of course find fault in the designs of others, in an attempt to sell you one of his loudspeaker kits. A reasonable accusation, were it not for the fact that---for instance---in this particular video (an examination of an Eggleston model) Danny makes Eggleston an offer to drop into the company headquarters and help them correct the glaring faults he found in the crossover design of the Eggleston loudspeaker a customer sent him.
Even if you are skeptical---ESPECIALLY if you are---why not give the video a viewing? Like the loudspeaker evaluation, it's free.
https://youtu.be/1wF-DEEXv64?si=tmd6JI3DFBq8GAjK&t=1
And for owners of other loudspeakers, there are a number of other GR Research videos in which other models are evaluated.