Head-Fi.org › Forums › Equipment Forums › Headphones (full-size) › Sennheiser HD650 Impressions Thread
New Posts  All Forums:Forum Nav:

Sennheiser HD650 Impressions Thread - Page 1026

post #15376 of 21327
Quote:
Originally Posted by MattTCG View Post
 

 

I bought a crack pre built from another member here. It did not survive shipping. :(


Oh no! I hope it wasn't beyond repair. I did ship one once where one side of the 4K resistors had snapped off. Luckily the buyer had enough skill to use a soldering iron to melt the solder back around it snugly. Disaster averted.

post #15377 of 21327

Few quick pictures of my custom 4ft Cable with a 3.5mm Plug (I did not make this).  It is for portable use. 

 

 

 

 

 

 

 

..

post #15378 of 21327

watabeau...those grey tones all over..from cans to background to the greypatterns...punctuated by the reds.

post #15379 of 21327
Quote:
Originally Posted by dxanex View Post
 


Oh no! I hope it wasn't beyond repair. I did ship one once where one side of the 4K resistors had snapped off. Luckily the buyer had enough skill to use a soldering iron to melt the solder back around it snugly. Disaster averted.

 

Damaged beyond repair. The seller had to file the claim with insurance. 

post #15380 of 21327

Recently got a Moon Audio Silver Dragon V3 set of cables for my HD650's. Really helped mitigate their "darkness", adding to the top end while not messing with the awesome bass. Anyone else have this same experience? 

post #15381 of 21327

enjoy your silver bro..:beerchug:

post #15382 of 21327
Quote:
Originally Posted by dxanex View Post
 

 

Pfft, I've built 4 so far and I'd do it for half that. But I'd be afraid to ship it all the way to Finland. God knows what US customs would do to it...

With those assembly prices + shipping + VAT it would end up costing me an arm and a leg. :eek: I'll just stick with the Vali for now, and try to find a guy in here who might be up for the job should I ever want me some Crack.

post #15383 of 21327

I started lately to use my headphones for very long sessions....I started to have a feeling that the HD650 was a bit short on breath when listening at low volumes and therefore used the K701.  A thought came to me, that I was very harsh on bright headphones and people who like bright headphones.

 

Then I stopped listening with headphones.  Today I plug in the HD650 having not heard headphones in a while.  The same tracks that were breathless at low volumes before...now sounded...about right,  If history repeats itself - I will eventually seek out the K701 again if I continue to use headphones at regular extended intervals.

 

So there you have it.  My answer is...I don't know anymore.

post #15384 of 21327

So based on the recommendations on others in this thread I finally decided to test some tube rolling on the Crack/HD 650 and I put a TS 5998 and a NOS Tung-Sol 12AU7 in there. I wasn't expecting to hear a huge difference but these tubes raised the HD 650 to that next level for me. I had one of those rare head-fi moments this morning where my eyes glossed over and I became utterly lost in the music. I swear, I feel like I've squeezed the last bit of detail out of the HD 650! (maybe not?!)

 

I picked the Tung-Sol 12AU7 because based on my experience with my Darkvoice 3322, they throw out a wonderfully detailed, holographic soundstage, and this one did not disappoint. And I've never heard more leaner and controlled bass on the HD 650! I rarely talk about endgame but I could see this being it for a lot of people, possibly myself. Everything just came together perfectly. I'm still itching to try the Mazda CIFTE, but I'm loving this Tung-Sol 12AU7 with the 5998!

post #15385 of 21327

It sounds like you have a fine rig that you enjoy very much.  RUN!!   Run away from here and don't look back.....save yourself!!

post #15386 of 21327
Quote:
Originally Posted by dxanex View Post
 

So based on the recommendations on others in this thread I finally decided to test some tube rolling on the Crack/HD 650 and I put a TS 5998 and a NOS Tung-Sol 12AU7 in there. I wasn't expecting to hear a huge difference but these tubes raised the HD 650 to that next level for me. I had one of those rare head-fi moments this morning where my eyes glossed over and I became utterly lost in the music. I swear, I feel like I've squeezed the last bit of detail out of the HD 650! (maybe not?!)

 

I picked the Tung-Sol 12AU7 because based on my experience with my Darkvoice 3322, they throw out a wonderfully detailed, holographic soundstage, and this one did not disappoint. And I've never heard more leaner and controlled bass on the HD 650! I rarely talk about endgame but I could see this being it for a lot of people, possibly myself. Everything just came together perfectly. I'm still itching to try the Mazda CIFTE, but I'm loving this Tung-Sol 12AU7 with the 5998!

Swap out your volume pot of your Crack for a valab 23 step attenuator circa $20 and the 5998 outperforms the GEC 6as7g brown base imho in a stock Crack.

post #15387 of 21327

The 5998 vs. GEC 6as7g [or other good 6080]  boils down to a matter of preference irrespective of your attenuator imo.  To lay a little bit of foundation, 6as7(g)'s and 6080's are the stock power tube(s) in every OTL headamp, including the crack, woo 2/3, darkvoice, etc.  5998's and 7236's are similar and can be substituted in most, if not all of these amps, but they are not identical in their specs.  These tubes have higher gain and higher transconductance, the latter of which lowers an OTL headamp's output impedance.  As one would expect, this tends to make the sound a little brighter and bass a little tighter.  Ordinary 6as7g's and 6080's, including the GECs, raise output impedance and are a little be more mellow on the top end and a little fatter at the bottom end due to minor bass bloom.  As described in an article on Pete Millet's site (http://www.pmillett.com/Wheatfield/rolling.pdf , see bottom of page 2), "The 5998, 7236, and 6528 have different characteristics than the 6AS7 and 6080 tubes, which lower the output impedance of the HA-2. The resulting sound tends to be brighter and faster than the stock 6080. Conversely, a good old-stock 6AS7G tube can fatten the bass and give an even more "tubey" sound."

 

The GEC, which I do own (purchased back when they were still relatively cheap), is simply a very nice, refined 6as7g equivalent.  It looks cool, but honestly, I have a couple of $10 mil spec 6080's that arguably sound just as good.  The hype surrounding this tube is truly unfortunate.  Even skylab, who was head-fi's original proponent of the GEC tubes, has urged other head-fiers not to buy them at their present inflated prices - unless of course, you are buying for the sake of collecting, and not because you expect $200+ worth of improvement to your sound quality.  The only poster who has repeatedly made statements to the contrary (no one in this thread) recently admitted having purchased a number of the GEC tubes on the cheap and then, after prolifically posting about them as the be all end all, selling them on head-fi at current ebay prices.  The mods ultimately put a stop to it, but anyone considering buying a GEC tube should know the full story and approach that decision with due caution.  

post #15388 of 21327

 

Quote:
Originally Posted by JamieMcC View Post
 

Swap out your volume pot of your Crack for a valab 23 step attenuator circa $20 and the 5998 outperforms the GEC 6as7g brown base imho in a stock Crack.

Quote:

Originally Posted by skeptic View Post
  Warning: Spoiler! (Click to show)

The 5998 vs. GEC 6as7g [or other good 6080]  boils down to a matter of preference irrespective of your attenuator imo.  To lay a little bit of foundation, 6as7(g)'s and 6080's are the stock power tube(s) in every OTL headamp, including the crack, woo 2/3, darkvoice, etc.  5998's and 7236's are similar and can be substituted in most, if not all of these amps, but they are not identical in their specs.  These tubes have higher gain and higher transconductance, the latter of which lowers an OTL headamp's output impedance.  As one would expect, this tends to make the sound a little brighter and bass a little tighter.  Ordinary 6as7g's and 6080's, including the GECs, raise output impedance and are a little be more mellow on the top end and a little fatter at the bottom end due to minor bass bloom.  As described in an article on Pete Millet's site (http://www.pmillett.com/Wheatfield/rolling.pdf , see bottom of page 2), "The 5998, 7236, and 6528 have different characteristics than the 6AS7 and 6080 tubes, which lower the output impedance of the HA-2. The resulting sound tends to be brighter and faster than the stock 6080. Conversely, a good old-stock 6AS7G tube can fatten the bass and give an even more "tubey" sound."

 

The GEC, which I do own (purchased back when they were still relatively cheap), is simply a very nice, refined 6as7g equivalent.  It looks cool, but honestly, I have a couple of $10 mil spec 6080's that arguably sound just as good.  The hype surrounding this tube is truly unfortunate.  Even skylab, who was head-fi's original proponent of the GEC tubes, has urged other head-fiers not to buy them at their present inflated prices - unless of course, you are buying for the sake of collecting, and not because you expect $200+ worth of improvement to your sound quality.  The only poster who has repeatedly made statements to the contrary (no one in this thread) recently admitted having purchased a number of the GEC tubes on the cheap and then, after prolifically posting about them as the be all end all, selling them on head-fi at current ebay prices.  The mods ultimately put a stop to it, but anyone considering buying a GEC tube should know the full story and approach that decision with due caution.  

 

 

^This is interesting stuff. I never planned on spending current prices for the GEC brown base tubes, and I suspected that they would not be that much of an improvement over the TS 5998, expecially for the price.

 

I also didn't think upgrading the volume pot would do a whole lot, but never-the-less I did install an ALPS Japan Blue pot in my current build. I don't know the difference between it and the valab, but its supremely quiet, which I would more attribute to the tubes/speedball upgrade.

 

 

 

 

Anyway hope I'm not going too off topic. Point is, my HD 650 never sounded better! :beerchug:

post #15389 of 21327
Thanks ...u sewn up my wallet:D
post #15390 of 21327

Why no one can make a better phones than the HD650, even Sennheiser itself?  :rolleyes:

New Posts  All Forums:Forum Nav:
  Return Home
  Back to Forum: Headphones (full-size)
Head-Fi.org › Forums › Equipment Forums › Headphones (full-size) › Sennheiser HD650 Impressions Thread