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Crack;Bottlehead OTL - Page 281

post #4201 of 7977

^^ The crack is already a great buy. The sale just makes it that much better. I waited for months for a sale but should have waited a few more weeks. 

post #4202 of 7977
Quote:
Originally Posted by Armaegis View Post
 

The true spirit would be to sell off stuff that hasn't even arrived yet to fund the purchase of new toys... :biggrin:

 

The trick is selling stuff that nobody seems to want.

post #4203 of 7977
Quote:
Originally Posted by Sonido View Post


Any experience for the AKG K812 (36 ohms)? Mainline or SEX?

Should work with either one. But considering the placement of the K812 as a flagship it seems Mainline might get the chance to show its more refined sound.

post #4204 of 7977
Quote:
Originally Posted by Doc B. View Post
 

Try looking here:

 

http://bottlehead.com/which-amp-should-i-buy-for-my-headphones/

 

Thank you, Doc.

post #4205 of 7977
Echoing Doc's remarks on the K812, I haven't heard them yet, but based on Tyll's review at Inner Fidelity and his comments about the K812s not handling strident sound well, I'd definitely lean towards the Mainline for its extra levels of control and refinement.
Of course, this is just conjecture and the SEX is a great amp (and not harsh). Perhaps ask in the Bottlehead thread - there might be some more SEX / Mainline owners lurking there who also have K812s.
post #4206 of 7977

I'm at a loss for words... was not expecting this.

 

http://www.head-fi.org/t/685339/akg-k812-pro/1965#post_10353684

 

The K812 really doesn't need a lot of power. No wonder it plays great out of a portable device. Maybe this can be of use to your Bottleheadphone being low impedance as well. How far does the volume knob need to go for the Bottleheadphone to get to listening levels, Doc?

post #4207 of 7977
Quote:
Originally Posted by Sonido View Post
 

I'm at a loss for words... was not expecting this.

 

http://www.head-fi.org/t/685339/akg-k812-pro/1965#post_10353684

 

The K812 really doesn't need a lot of power. No wonder it plays great out of a portable device. Maybe this can be of use to your Bottleheadphone being low impedance as well. How far does the volume knob need to go for the Bottleheadphone to get to listening levels, Doc?

 

Interesting. How would you describe the bass of the K812 + Crack compared to the K812 + other amps?

post #4208 of 7977

Interesting, I often listen to my ATH W1000X  Impedance: 42 ohms with the Crack, aside from some short comings in the bass you might be surprised how good it sounds out of the Crack, I was..

 

Also the difference on the ATH when running 5998 vrs 6080 is quiet noticeable with the 5998 giving much better results.

 

The ATH are also good for checking the noise floor, with the T1 and Senn 650 my Crack has a completely black background right up to full volume,  No music playing obviously,

 

With the ATH W1000X and 6080 fitted the noise floor starts to kick iin when I reach the 17th step of my 23 step attenuator

With the 5998 fitted the noise floor is not heard until 20th step of the 23 step attenuator.

 

Normal listing is in the 2-6 step range with 7 starting to get painful,

 

The W1000X with the Crack running a 5998 and E80cc is honestly an enjoyable enough listen.


Edited by JamieMcC - 3/12/14 at 6:04am
post #4209 of 7977
Quote:
Originally Posted by Loquah View Post

Interesting. How would you describe the bass of the K812 + Crack compared to the K812 + other amps?
A bit softer and not as sharp. That's pretty the effect throughout. Especially helps in the lower treble that used to hurt my ears, but now is smoothed out.
Quote:
Originally Posted by JamieMcC View Post

Also the difference on the ATH when running 5998 vrs 6080 is quiet noticeable with the 5998 giving much better results.
I forgot to mention I was using 5998 as well. Haven't tried 6080 with K812 yet. Will do later today.
post #4210 of 7977

Just tried with 6080 and it's just as good. No noise floor issues. Volume knob need to go a bit higher to 9 o'clock. I listened more carefully for the bass and compared it to a low output impedance (0.5 ohms) amp in the Questyle CMA800R and I prefer the bass from Crack more. The K812 bass can be too sharp for me, and the softening of the Crack is perfect for it. I was testing with Crescendolls by Daft Punk. The bass difference is quite noticeable on the intro of the song, and sounds smoother and better on Crack. This was on 6080. Switching back to 5998, the bass is closer in sharpness to the Questyle. Heck after just some basic comparisons, I could make the argument the K812 synergizes better with the 6080. It's even smoother, and I personally find harshness in the K812 so this is really good for me. As for quantity of bass, I don't find a decrease or roll off at all with either tubes.

post #4211 of 7977
Quote:
Originally Posted by Sonido View Post
 

Just tried with 6080 and it's just as good. No noise floor issues. Volume knob need to go a bit higher to 9 o'clock. I listened more carefully for the bass and compared it to a low output impedance (0.5 ohms) amp in the Questyle CMA800R and I prefer the bass from Crack more. The K812 bass can be too sharp for me, and the softening of the Crack is perfect for it. I was testing with Crescendolls by Daft Punk. The bass difference is quite noticeable on the intro of the song, and sounds smoother and better on Crack. This was on 6080. Switching back to 5998, the bass is closer in sharpness to the Questyle. Heck after just some basic comparisons, I could make the argument the K812 synergizes better with the 6080. It's even smoother, and I personally find harshness in the K812 so this is really good for me. As for quantity of bass, I don't find a decrease or roll off at all with either tubes.

Which 6080 are you talking about?  :O

post #4212 of 7977
Quote:
Originally Posted by SNSDluv View Post
 

Which 6080 are you talking about?  :O


Tung Sol 6080 WA. Came standard with my Crack.

post #4213 of 7977
Quote:
Originally Posted by Sonido View Post

I'm at a loss for words... was not expecting this.

http://www.head-fi.org/t/685339/akg-k812-pro/1965#post_10353684

The K812 really doesn't need a lot of power. No wonder it plays great out of a portable device. Maybe this can be of use to your Bottleheadphone being low impedance as well. How far does the volume knob need to go for the Bottleheadphone to get to listening levels, Doc?

The Bottleheadphone - which we decided to rename Crackheadphone for the sake of clarity - started with a stock Monoprice headphone that we modded for better performance with the Crack. It's very much tweaked to perform well specifically with the Crack. The final result is pretty evenly balanced tonally, with nice punchy bass. The stock Monoprice headphone does not sound as good connected to a Crack amp and the Crackheadphone doesn't sound its best with amps other than Crack. It's a really tweaky pairing and it will play loud enough to get into the long term hearing damage range - which seems to be a requirement of headphones these days wink.gif

IME asking "how far do you turn the knob" is not particularly relevant unless you are talking about comparing two headphones from the same music source. The output level of various DACs and players is all over the map.

For those who will ask, the manual for the Crackheadphones is being tested with the build of a sample pair and as soon as that is done (next couple of days) we should begin packing kits.
post #4214 of 7977
Quote:
Originally Posted by Doc B. View Post

IME asking "how far do you turn the knob" is not particularly relevant unless you are talking about comparing two headphones from the same music source. The output level of various DACs and players is all over the map.
Is it fair to compare with another headphone then regardless of DAC or source? I find the K812 need only have the volume knob turned slightly more to get the same volume as HD800, like 20 degrees at most. What's the Crackheadphone in respect to the HD800 in volume knob position? What is the power output for the Crack at 32 ohms?

P.S. just personal opinion, but Crackphone has a better ring to it for me tongue.gif
post #4215 of 7977
Quote:
Originally Posted by Sonido View Post


Is it fair to compare with another headphone then regardless of DAC or source? I find the K812 need only have the volume knob turned slightly more to get the same volume as HD800, like 20 degrees at most. What's the Crackheadphone in respect to the HD800 in volume knob position? What is the power output for the Crack at 32 ohms?

P.S. just personal opinion, but Crackphone has a better ring to it for me tongue.gif

 

The DAC question is constantly haunting me: Do I change into an asynch USB DAC which uses a high speed wizard kaboom chip with 32 bit/192 trumpet ability, or shall I just DIY a USB isolator for my ODAC?

 

But as far as I've read, the amplifier section is where most of the change happens. I can't go wrong with a Crack (pending funding and willpower) connected to my HD650.

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