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New listening impressions of Stax C32 prototype and Shipping SR-009 - Page 6

post #76 of 1512
Quote:
Originally Posted by DavidMahler View Post



I never heard of this.  How can I tell if I got this 2.5 version?  I ordered my pair from Elusive Disc.  But how do I know it hasnt been resting on the shelf for a year?  Is there a serial # where this change begins or something physically obvious.  What is the change?


I learned about it from Spritzer. I have no idea how to tell one from the other or exactly what the changes are. Spritzer will probably be the one to talk to about it, though KG might know as well.

post #77 of 1512
Quote:
Originally Posted by DavidMahler View Post

I'm still unsure between the BHSE and WES, because I will ultimately buy the C32 and want to make sure that the amp suits both headphones.  Any commenst on which amp is ultimately better for both or better in general?


The BHSE is the better amp, particularly for the O2. Headamp is also selling the Aristaeus again. IIRC that amp is more suited to the Sennheiser while the BHSE is more suited to the O2. It would be interesting if the C32 changes at all. I think the ultimate choice for everything remains the DIY T2.

post #78 of 1512
Quote:
Originally Posted by DavidMahler View Post



Quote:
Originally Posted by DaveBSC View Post



Quote:
Originally Posted by DavidMahler View Post

Wow! Doesn't anyone prefer the MK2 version?


No. wink.gif

 

That said, I suspect most people that have heard both probably have not heard the fairly recent "Mk2.5" version which is supposed to correct at least some of the Mk2's uneven response problems. Presumably if you just bought a pair, they'll have that recent update. 



I never heard of this.  How can I tell if I got this 2.5 version?  I ordered my pair from Elusive Disc.  But how do I know it hasnt been resting on the shelf for a year?  Is there a serial # where this change begins or something physically obvious.  What is the change?


If it "farts" it is a Mk2.5, if not, its a Mk2. I don't know that there has ever been any official confirmation that Stax has made a change, Mk2's with plugged bass ports just started appearing, I gather at canjam specifically.

post #79 of 1512

So "farting" is good? 

confused_face(1).gif

post #80 of 1512


 

Quote:
Originally Posted by Driftwood View Post


I never heard of this.  How can I tell if I got this 2.5 version?  I ordered my pair from Elusive Disc.  But how do I know it hasnt been resting on the shelf for a year?  Is there a serial # where this change begins or something physically obvious.  What is the change?


If it "farts" it is a Mk2.5, if not, its a Mk2. I don't know that there has ever been any official confirmation that Stax has made a change, Mk2's with plugged bass ports just started appearing, I gather at canjam specifically.


My Mk II was one of the two heard by Spritzer at CanJam 2010. I received it very shortly after it was received by a dealer from Yama's. It shipped September 9, 2009. Judging from the soap opera it took to get it from the distributor, it was probably hot off the boat from Japan. #SZ3-1383.


Edited by Clarkmc2 - 1/4/11 at 9:50pm
post #81 of 1512
Quote:
Originally Posted by Driftwood View Post



Quote:
Originally Posted by DavidMahler View Post



Quote:
Originally Posted by DaveBSC View Post



Quote:
Originally Posted by DavidMahler View Post

Wow! Doesn't anyone prefer the MK2 version?


No. wink.gif

 

That said, I suspect most people that have heard both probably have not heard the fairly recent "Mk2.5" version which is supposed to correct at least some of the Mk2's uneven response problems. Presumably if you just bought a pair, they'll have that recent update. 



I never heard of this.  How can I tell if I got this 2.5 version?  I ordered my pair from Elusive Disc.  But how do I know it hasnt been resting on the shelf for a year?  Is there a serial # where this change begins or something physically obvious.  What is the change?


If it "farts" it is a Mk2.5, if not, its a Mk2. I don't know that there has ever been any official confirmation that Stax has made a change, Mk2's with plugged bass ports just started appearing, I gather at canjam specifically.

so confused
 

post #82 of 1512

Nothing like being told I'm buying a farting phone! Can't wait!confused.gif

post #83 of 1512


I'm afraid that head-fi is less informative than we think. :) It's a place where many real facts are deeply buried under myths created by few prolific members and repeated infinitely by readers, not listeners.

Quote:
Originally Posted by DavidMahler View Post

Wow! Doesn't anyone prefer the MK2 version?

 

Over time these are different impressions I've heard:

 

  • MK1 sounds better with BHSE
  • MK2 is promoted with WES but it may be simply because that is the one Woo is able to sell
  • MK1 is considered less colored
  • MK2 has more bass and is darker
  • MK1 has more treble
  • MK2 is lusher and warmer and darker

 

So my question is how can the treble of the MK2 be more forward and problematic?  Doesn't the MK2 win at anything?  Does it fail in every regard?  I've heard both headphones but never on the same system and never on the same day so I could never compare the two

 

But several vendors essentially say:
 

  • MK1 vs MK2 is like splitting hairs.  They are essentially the same headphone with some minor chasis changes which alter the sound a tad.  The division between the two in terms of sound identity is less than the difference than the bass light R10 and bass heavy R10 or HD600 and HD650.  In comparison.... the O2 MK1 = HD600 and the O2 MK2 = HD650.

 

How can it be that every single person prefers the O2 MK1.  I'm just disappointed because I ordered the MK2 yesterday but I won't have an amp for several weeks or months.  I have a BHSE on order but it will be a period of time before I ever hear my pair and i don't want to be disappointed.

 

With regard to the SR Omega, I've been told these are superior, but problematic and easily breakable.  The HE90 being referred to as colored seems really weird to me since I was under the impression that the intent of the sound of this headphone was to be transparent and unbiased and very pure.  I thought this was how it maintained such a reverance in this community.'

 

The C32 should be great tho!

post #84 of 1512
Quote:
Originally Posted by Larry I View Post

I have the Mk 1 version of the O2s.  I have only heard them with the tube energerizer/amp from Stax and the BHSE I recently acquired.  I like the BHSE: it is very fast, clear, robust sounding (deep, powerful bass) and more dynamic than the Stax amp, but it does not fundamentally alter the tonal balance of the headphone and the slightly "cold" sound.  I have not tried the BHSE with older EL34 output tubes; I have access to a pretty good range of alternatives that a friend has offered to give to me.

 


Maybe I agree on this but I wouldn't say that the sound is cold and you also use parenthesis. BHSE is not warm but I would rather describe the sound as laid-back and slightly distanced, and not pushy. It doesn't work very well when I am distanced myself, the presentation is very detailed and complex with instruments in separate spaces and a relaxed concentration is necessary. Occasionally I would like some more warmness, especially when I am tired or the recording quality is low. Differences in recording quality are obvious and usually more agreeable in a warm sounding system.

 

Why not try the tubes you are offered? My experience of changing to NOS Mullard is positive, although the change might not do what you want. I had expected from my memory of readings that the tonal character should change substantially from Sovtek EL34 to Mullard EL34. My initial experience (after 24 hours of burn-in) is that the tonal balance and overall sound character is similar, but the Mullards are smoother, have better PRAT and maybe slightly warmer. The end result for me is a stronger feeling of presence and listening is more fun. More presence rather than more warmness.

 

 

post #85 of 1512

Perhaps what I ultimately want is unobtainable because more of one characteristic necessarily diminishes another.  What I get from my speakers is a more dense sound--richer sounding harmonics and more beautiful tone, particularly for string instruments like the viola and cello.  This thicker harmonic structure may be the product of the more resonant characteristics of the speaker.  But, I also like the incredible clarity of the phones and the freedom from obvious resonant overhang.

 

I did some listening to some older, better sounding recordings last night.  These phones really shine with richer sounding recordings, and sound particularly good with recordings which seemed to have excessive bass boom when heard on my speakers (Louis Armstrong/Duke Ellington collaboration).  I do hear a lot of detail with these phones, both the good and the bad (dropouts and edits are a bit too easily discerned).  Still, the bottom line is that they are completely enjoyable and I get wrapped up in the music and that is all that matters.

 

I have been a bit lazy about doing the tube substitution, but, I am in no hurry because I am still getting acclimated to the new amp (I think the more significant part of "break in" involves changes in the listener moreso than changes in the gear).  I do know how significant a change in tubes can be to the sound.  I have access to Mullard xf2s, Philips 6CA7 (friend's favorite in his amp) and some Telefunkens.

post #86 of 1512
Quote:
Originally Posted by DavidMahler View Post

Wow! Doesn't anyone prefer the MK2 version?


You may want to take a look at this post wink.gif

http://www.head-fi.org/forum/thread/442433/stax-sr-007-vs-sr-007-mk2-vote-only-if-you-have-heard-both/15#post_6883211

I find his description very interesting, I had the same feeling of a more analogue sound with the Mk2 (only going from memory though).


Edited by mobbaddict - 1/5/11 at 5:23am
post #87 of 1512

This is the funniest thread I have read in a long time. What needs to happen is at the next meet, if many of the top head-fiers attend, the three versions of the Omega attend, and the top amps to drive them, and some highly regarded sources and music to feed them. Then all the members will write something about each can, amp, and source combo and someone will summarize the results. Why do I think that  everyone is going to hear something different and there will be almost no real consensus on the sounds?eek.gif Everyone's  brain if not their ears probably hear the exact same things differently as a result of genes or enviroment. Maybe a person who grows up listening to speakers or playing an instrument will never find cans enjoyable, or vice versa. Of course all the degrees in between are the ones relevent here, as almost everyone in this thread have heard or currently own headphones; more specifically different versions of the O2. There seems to be some consensus on what constitutes an improvement on previous favorites, but there also seems to be preference for certain new favorites for certain members and almost the opposite for other members.

 

I really want to hear an O2 or C32 now. And of course, this is all conjecture and I am somewhat of a noob still.


Edited by GeorgeGoodman - 1/5/11 at 8:30am
post #88 of 1512
Quote:
Originally Posted by MrGreen View Post

Quote:
Originally Posted by IPodPJ View Post

If they sound and image like the SR-Ω but with more bass, they'll probably be the best headphone ever made.



The design choice on the stator(?) makes it look similar to the omega. I wonder how much this is responsible for the sound, though. It looks a little different, and appears just a way to add uniform strength to the object in question. It'd be nice if it did sound like the omega, though. Then maybe I can pick up an omega on the used market before I go to speakers ;)



Mr. Green your avatar scares the hell out of me.

post #89 of 1512

The O2 MKI had a problem which is known here as the "Stax Fart".  The O2 creates a seal around your ear, which if you move or press the headphones, results in a sound as the result of air moving the dust membranes.  The MKII fixed this but putting ports at the bottom to break the seal, but the result was a change in sound, which Spritzer doesn't like.  However, recent MKIIs have appeared without the port.

post #90 of 1512
Quote:
Originally Posted by Currawong View Post

The O2 MKI had a problem which is known here as the "Stax Fart".  The O2 creates a seal around your ear, which if you move or press the headphones, results in a sound as the result of air moving the dust membranes.  The MKII fixed this but putting ports at the bottom to break the seal, but the result was a change in sound, which Spritzer doesn't like.  However, recent MKIIs have appeared without the port.



. stax007A.jpg

 

The photo above shows the port at the bottom of the picture. All I have heard on the topic of the port was a report by Spritzer that 2 sets of 007A'a at Canjam had their ports filled in but you can't be sure about this unless you take the earpads off.  I wait for someone to say they have opened up their phones and to send in a photo of what is there.

 

I tried the mods that Spritzer suggested and like the spring flattening more than plugging the port.  The latter seemed to make the somewhat peaky bass of the 007a even more peaky.  However, flatenning the spring seemed to make these phones more neutral sounding.

 

http://www.head-fi.org/forum/thread/381975/to-tweak-or-not-to-tweak-the-stax-007a-that-is-the-question

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