Couple years ago, it was ovoid voice coils from SS that represented the breakthrough.
Always a company willing to market strange looking shit, and always a crowd ready to declare strange looking shit is the second coming, especially if the strange looking shit costs a mortgage payment.
Couple years ago, it was ovoid voice coils from SS that represented the breakthrough.
Always a company willing to market strange looking shit, and always a crowd ready to declare strange looking shit is the second coming, especially if the strange looking shit costs a mortgage payment.
I'm not fooled by the strange looking shit, but their measurements jive with Hifi Compass' measurements and look better than any 7" driver on that site. Whether that correlates to the best driver on the site is up for debate, but just achieving the paper results is something to take note of and investigate further IMO.
Yep, great measurements, still derivative technology.
Small improvements to existing technology is how we get everything. This seems to be the current culmination of what is available in driver design - the state of the art for now. I'm curious.
I am too. I just read a post over in FB from some DeSilva guy who implied Purifi will be pulling out of the DIY market at some point. He was a dick about it, too.
Call it derivative, call it breakthrough, who cares. Loudspeaker technology moves ahead at a snails pace, small changes that people eventually realize "yes, this is better" is how the industry advances.
I commend the Engineering that went into the Purifi driver, they risked having their baby called ugly in the name of making the best driver they could, and are forthcoming on the technical aspects without marketing fluff. They should be commended for that.
The surround solves a problem of not only breaking up "edge resonance" but solving a nonlinearity that is present in every high excursion driver with a half roll surround. with a large half roll you have different forces on the cone when the cone moves inward vs outward which causes increasing harmonic distortion at high excursions. The weird surround in Purifis driver aims to correct this.
Sure companies like Fostex have made odd shaped surrounds and even odd shaped cones in order to breakup the breakup, so it's not that new of an idea, yet many high end manufacturers still choose a standard surround. I am absolutely certain that every high end driver engineer is aware of the problems presented by the half roll surround as well.
I think over time this weird surround shape will be looked at like the Scan slit cones, a small change to a speaker that just simply makes it perform better. Call it what it is - well engineered.
Fwiw that bike tire surround in the Pyramid driver is also present in a very well performing 18Sound pro midrange driver. I guess that makes the Pyramid a bargain and a trend setter!
Heh- they are more than my first car cost me as well! I won it at after-prom my senior year in high school; 'twas a 9 year old Chevy Cavalier, and I dumped about a grand into it keeping it running for the 2.5 years I drove it. There is a long list of what my dad and I replaced or did to that car. When I sold it for $200, it kept blowing ECM fuses when I tried to start it, so I popped a 40A blade in it and watched it being driven away.
Compared to luxury cars like the Purifi is to speakers, my first car was like finding a rusty Bose driver in a dumpster and trying to make it work as my sole speaker for that amount of time.
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I am believing more and more Purifi tech is derivative, not groundbreaking.
Always a company willing to market strange looking shit, and always a crowd ready to declare strange looking shit is the second coming, especially if the strange looking shit costs a mortgage payment.
And those cones are total knockoffs of 15-20 year old technology right?
https://solen.ca/manufacturer/purifi-audio/?fbclid=IwAR1T5CrCW0VmR1IRVRSxOAFNA_izdoM5Om37sM488tf_mMgGZG5v6TqLqhM
Compared to luxury cars like the Purifi is to speakers, my first car was like finding a rusty Bose driver in a dumpster and trying to make it work as my sole speaker for that amount of time.
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