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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

Showing 5 responses by wildfoxinn

wildfoxinn
69 posts
 
I’m a little confused about the claims of the infinite slope crossover though. According to the stereophile measurements it looks like 1700 hz crossover point with what looks like a normal roll off. It's a relatively low x-o point for a retail product, which generally improves dispersion, maybe that's what's all the fuss is about?
wildfoxinn
69 posts
 
I find lowered x-o point can really improve driver integration alot. I have a custom speaker that has top of the line Seas drivers (T29D001 tweeter and a new prototype Excel woofer) that had improved imaging noticeably when the crossover point was lowered from 1800hz to 1500hz.

The Seas millenium tweeter in the Pulsars has a bit more xmax than your typical tweeter and it seems like JA decided to be relatively aggresive with their x-o point and I suspect that’s actually where the "magic" is at. Amphion uses a 1600hz x-o and Revel uses 1700hz for their M126Be which I also find have great driver integration.
wildfoxinn
69 posts
 
I see a thread by you about that about a speaker where the woofer covers 400hz and below. Isn’t something like the Kef Reference 1 or TAD ME-1 the closest to that concept in practice--basically a 3-way coaxial?
wildfoxinn
69 posts
 
For me the big advantage of crossing over low is the speaker becomes way less height sensitive, and the majority of the sound should seem like its coming from the tweeter. With most retail speakers crossed somewhere around mid 2000s or even up to 3K, just crossing over this low helps it stand out a lot in the imaging department for a 2-way. But I think anyone who likes the Pulsars should give the Revel M126BE a listen. It’s half the price and is similarly crossed over very low with a a high end SB Acoustics Be tweeter that has very good dispersion but should be capable of more output with a larger woofer.
wildfoxinn
69 posts
 
I think people say that about JA Pulsar's because the drivers are available on OEM supply sites like Madisound and it isn't using anything unique that a DIYer can't easily replicate, such as a custom waveguide.
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