Having not had need to buy blades of late, I can't speak to which of the new breed is quietest. My thin-kerf Freud and Forrest table saw ATB finish blades (several models) are quieter than the thick kerf finish and rough blades.
I use Freud and Marathon thin-kerf blades on my Skill WD framing saws. Several years back, a friend asked me to try a thin kerf framing blade he'd just purchased at 4 times the cost, a Tenryu of some model, and it was far superior. The cut was better, it was much quieter, and best of all it didn't fling chips towards my eyes while cutting, something I then realized I'd become used to... I've yet to investigate further, but will once my stock of blades run out. Tenryu's PR department claims their products are known as "
The Quiet Blades". That MAY be true, if their table saw blades live up to what I experienced with the Skil saw blade..
A blade I've had interest in since it arrived on the scene is the
Total Saw Solutions, "Micro-Kerf", which "cuts thin as a dime. Pricey, but for a particular use I have it may quickly save enough in reduced sawdust to pay off handily. The jury is still out on that...
I looked for more information on the blades, such as arbor and blade diameter sizes, and failing to fins that at the website, wrote to the company. President, Don Angelo replied:
"I understand your frustration!
We do have other sizes available but not on our website as of yet.
I have sizes in the 30mm in the 10" and 12" for cutting solid wood or
Melamine.
What are you looking for?
I will also need your shipping address if you are out of the U.S. so as to
give you a buy now through PayPal email.
Kind regards,
Don Angelo - President
Total Saw Solutions Inc.
www.totalsawsolutions.com"
Ray Behner recommended
Tru-Cut Saw, in Brunswick, OH as doing good work in the "Saw blade Sharp(en)ing" thread, so I checked them out. Tru-Cut saw lists only circular saw blades for metal cutting, but they might be interesting to speak with regarding wood cutting, as they produce blades as thin as 1mm (~1/25"), and they'll design blades to your specs.
Concerning pricing discrepancies between the Freud P414 and LU86R014, the 414 is thick-kerf, the LU86 thin kerf. The 414 has a double side grind, which is lacking in the LU86. The thin-kerf version of the "nuclear processed", Premier Fusion is the 10", P410T (5/8" arbor), which costs about the same as the LU86 14" thin kerf.
Once your search leads you to the quietest blades, please do let the rest of us in on it...
Be well,
Lance