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New Joseph Audio Pulsar Graphene 2

Just wanted to update my prior thread where this topic may have gotten lost.  As many of you may know by now, Joseph Audio has come out with the new Pulsar Graphene 2. This new iteration of the venerable Pulsars has a graphene coated magnesium midrange-woofer cone, and the drive motor, suspension system, etc., have been revamped. From what I have been told, the upgrade is pretty significant ... the sound is fuller and has greater ease, yet is very resolved. Jeff Joseph advises that an upgrade path will be available for existing owners of the Pulsars, too. Also, note that the price quoted in the Soundstage piece was in Canadian dollars ... Jeff informs me that the price in USD is $8,999 per pair. I am eager to hear the new Pulsars.
rlb61
prof
3,468 posts
 
I just read this announcement about the Perspective on Joseph Audio Facebook:
April 12, 2019
FOR IMMEDIATE RELEASE - WORLD PREMIERE - Perspective2 Graphene! Suite 1521 at the Axpona show.
Building on the original Perspective design, the New Perspective2 now includes Graphene coated Magnesium woofers that have been completely re-engineered using Finite Element Analysis.

What has me a little puzzled is that it only mentions a coating/re-engineering of the woofers.  Whereas the Pulsars upgrade supposedly goes beyond replacing woofers to re-engineered motors etc.I would have thought that if the Perspective upgrade went beyond just a new coating on the woofers that it would be mentioned as well.
?
markalarsen's avatar
markalarsen
638 posts
 
The Pulsars and Perspectives use the same drivers. 
prof
3,468 posts
 

markalarsen,

Yes I know.  I just find it odd that IF the updates for the Perspectives go well beyond merely a new coating on the drivers, that that information isn't included in the announcement of the new Pulsar 2.

I mean, audiophiles always want as much as they can get for their money in upgrades, which is why audio companies are typically at pains to depict upgrades with as much significance as possible.  So "new woofers with entire new motor system" would sound much more exciting and appealing than just "woofers with a new coating."  Which is why I"d expect such details to be part of an upgrade announcement.

prof
3,468 posts
 
Bunch of info here on what I presume to be the same or similar new SEAS graphene drivers:
https://www.audioxpress.com/news/seas-announces-new-excel-graphene-woofer-series
erik_squires
16,009 posts
 
Good find Prof, reading the specs on their site, the big difference I see is power handling. Long term power handling has more than doubled.

This is by no means a simple graphene coating though, as the article points out, significant changes to the voice coil and suspension have occurred, while the overall frequency response is barely touched. This makes me wonder if the graphene coating is anything more than a paint job? Their white paper mentions corrosion protection as one of the first benefits, a good thing:


http://www.seas.no/images/SEAS_Graphene_White_Paper.pdf


Also, linear travel remains the same 14mm in both, so the maximum limits are going to be similar.


From what I read here, no one should be worried their original Pulsars will be suddenly and severely upset by the new version.


OTOH, if you are Prof and looking for a deal, wait for A’goners and dealers to put the original versions on sale. :)
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