Nearly all manufacturers do not advertise/exhibit their product measurements? Why?

That was a quick and interesting response.

This video about power cords is well worth a watch too:

@laoman Of course he is saying that, he’s a know-it-all.
"Uneven bass response in every room and power cables can’t make a difference." What nonsense is that? My friend's room was not extraordinarily bad, it was good overall and his bass was terrible. Now it’s excellent. All it took was power cable replacements, just like quality caps, improved power supply (that’s what the power cables did), et.al. I have been corresponding with another Audiogon member who has experience with Amir. Because of his relationships with local friends who are members of ASR, he doesn’t want to post his interaction. He is a many decade, major audio equipment designer for multiple companies, now working for Intel. He asked Amir to test a piece of equipment and asked him about the type of measurements. He let me know that Amir could not properly test it and had inferior/limited test gear whereas he had worked at audio manufacturers who have $2+ million test equipment. He decided not to let Amir do the testing and not join ASR’s forum (the word science is a misnomer in the name).

Amir-"A power cord will do absolutely nothing for this as this effect"-(irregular bass response in a room). RIDICULOUS. When a horribly irregular response becomes a perfectly regular response TO THE EAR when listening to it by changing the power cables, there IS an electrical change that caused it and it is not imaginary. Well the changed response may not measure perfect because of the room, it sounds perfect or nearly perfect. Pre-change in the particular cheap power cables, the sound was totally unacceptable and would measure terrible. As music lovers and not interested in proving the OBVIOUS, there is no need to test or measure the difference.

@kota1 Wow, great video!!!  Equating Water delivery to Electrical Power delivery.  Exactly correct.  

@holmz I just read you last response. I don’t know what being on the scale means but I appreciate your response that you should have phrased your statements more as questions. I spent a fortune (12% of my home price) to build my final listening room in my new home in 2019 and would not move in until it was completed (five months). I don’t use DSP. I have an excellent system with relatively inexpensive speakers. My primary acoustic tweak is the two pair of Shakti Hallographs. Unfortunately, my speakers by themselves, do not meet my imaging and soundstage expectations but I bought them to replace electrostats (Legacy Focus replaced Martin Logan Monolith IIIs). My Signature IIIs in the 2nd system maintain superior open sound due to the smart rear firing tweeter (otherwise the speakers are similar). The Focus’ sounds great in my costly listening room ($150K).

If you want to confer concerning your room acoustics and/or equipment, I'm open.  There are choices depending on your budget, which can make big differences in sound quality and those that I would avoid.  Other than that, your music and hearing preferences should govern your choices. 

Fortunately, there are cable and tweaks which can be auditioned for 30 or 60 days.  Regardless of what Amir states to be facts, you can try Synergistic Research tweaks and GroverHuffman.com cables with full refunds.  I recommend them after you have your room and system set up.  If you can, use better quality and/or larger gauge internal wall wiring, separate power breakers (subpanel is possible) and a grounding rod.  You can always upgrade power outlets (better contact, materials).  They don't have to be top of the line.  I can't help you on streaming equipment or DSP use.  If you are building your listening room from scratch, I can suggest interior wall construction and finishes which should compliment your system rather than create acoustic problems (such as use of sheet rock, voids that require in room bass traps, etc).  

Good luck on your new listening room and equipment!