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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
erik_squires
15,630 posts
 
I think driver integration can be done well at any point, but have you tried woofer-assisted wide band? May be your cup of tea. :)


Best,
E
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?
soix
8,601 posts
 
I dunno.  You guys seem to be implying that this is a 2nd order crossover that's crossed over relatively low in the high frequencies, and that this is what creates the magic.  That seems like an over-simplification to me, and I don't know if it's what the crossover does with phase or whatever, but there aren't many speakers that disappear or image like JA speakers.  I don't know if your giving the JA crossover its due. 
geoffkait's avatar
geoffkait
23,365 posts
 
erik_squires
“Ideally I’d love to see graphene damp the ringing and allow for higher use of the mid-woofer.”

>>>>>That’s weird. Graphene is a damper? I would have assumed graphene was a stiffener.


erik_squires
15,630 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?

I'm not sure what thread you are talking about, I've posted many, and I'm not the biggest proponent of WAWB speakers, but given your post, I though you might find it an interesting idea.

WAWB is a true 2-way, not a 3-way with coaxial.


The idea is to use a relatively small (3"-4") wide band driver to cover the mid-hundreds all the way up through the top octave. Takes crossovers completely out of the vocal range. You should visit DIYaudio or another site for more information on current thinking of this type of design.

Another way to think of a WAWB is a close cousin of full-range, single driver speakers, similar to the Fostex or Markaudio type of drivers.


https://www.madisoundspeakerstore.com/full-range-speaker-kits/

Let me know if you try any of them,

Erik
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