First let me say I much preferred the old site.. so much so that I think I will be posting less and less on the forums.
But anyway..
In regards to the spirit labs twin pulse headphone:
Yes it is two Grado drivers in each earcup which is probably the first time anyone has ever done that. I was actually pretty surprised that would even work.. the fact that they did that along with the cool looking design itself made me want to buy a pair. I haven't heard anyone really talking about spirit labs and I wasn't sure if it was a good thing or a bad thing. I don't think they are popular here in America, but maybe in Italy (where they're built) or other parts of Europe they are more distinguished.
So I have been listening for about two days now and man oh man I cannot put them down. First off, they definitely have more bass
by far than any Grado headphone out there - at least that I have heard. They aren't vibrating my eyeballs, but it is a pretty prominent presence, especially compared side to side to my Grados. The mids seem slightly scooped but still enjoyable and almost has this dry sound to it. The highs are typical signature Grado, if not even more sparkly. By reading this you can probably tell they lean towards a V shaped sound and you are definitely right! This makes them the most "fun" sounding of all my headphones by far. (but something that can be tiring)
Personally I think the obvious elements with these are these three things.. wide soundstage, big bass presence and sparkly/accentuated treble. I didn't mention the soundstage until now, but one word to describe it would definitely be WIDE. I haven't yet put it side by side to my 800S, which I am sure the 800S probably still has the bigger soundstage.. but at the very least I think the twin pulse sounds quite natural and not artificially large in its soundstage. Great imaging too.
I mentioned the big bass, but I didn't comment on quality. The quality itself of the bass is good too. I think around 75 to 175 hertz it is just glaringly obvious that these can pack a punch. The quality itself in the bass department seems about a 6.8/10 where as a 10 is perfect. Don't expect basshead level bass without EQ, but again.. compared to all other Grado headphones it completely has about 5 levels above them in quantity.
Before I get ahead of myself and write a full on review.. I better stop now before I end up sitting here too long and giving you guys a book to read lol Not to mention it has only been two days so who knows how they will sound, both subjectively and after the diaphragms burn in and loosens up a tad. But yea.. all I can say right now is - V shaped fun signature with respectable soundstage and pretty decent bass quality with a lot of quantity.