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Crack;Bottlehead OTL - Page 194

post #2896 of 5617
Bit bright and shrilly top end.
post #2897 of 5617
Quote:
Originally Posted by i luvmusic 2 View Post
 

has anyone paired CRACK with dt880 600 ohms?

Yes, several have and report that it's good. Matter of fact, I honestly haven't seen any real complaints about the Crack with 300+ ohm headphones. It's a specialty amp for made for Beyers and Senns really :)

post #2898 of 5617
Quote:
Originally Posted by brunk View Post
 

Yes, several have and report that it's good. Matter of fact, I honestly haven't seen any real complaints about the Crack with 300+ ohm headphones. It's a specialty amp for made for Beyers and Senns really :)

ok thanks! i'm planning to get this for my first DIY AMP.

post #2899 of 5617
Quote:
Originally Posted by i luvmusic 2 View Post
 

ok thanks! i'm planning to get this for my first DIY AMP.

Definitely a great first choice for a beginner and those headphones.

post #2900 of 5617
Quote:
Originally Posted by palmfish View Post

Well, the short answer then is... The O2 is fast, articulate, lean, and clear while the Crack is warmer, meatier, smoother, and more liquid.

For what it's worth, as far as I'm concerned, when it comes to high impedance headphones, I think the comparison is a no brainer in favor of the Crack.

Yes, the O2 is fast, articulate and clear, but I don't find the Crack to be any less fast, articulate or clear. The O2 is, however, decidedly lean, and it is here that the Crack just stomps all over the O2 (which is a very, very good amp and still recommended for use with other headphones). In particular, bass is entirely different through the O2 and the Crack. And there are big differences in aesthetics and practicalities. The O2 runs off batteries, shouldn't be left plugged in all the time, and has an exceptionally crowded front faceplate. The Crack is...a desktop amp that can be as beautiful as you make it (or, in my case, as ugly).

For high impedance cans, save up and get the Crack.
post #2901 of 5617
Quote:
Originally Posted by palmfish View Post


I really havent noticed much difference between all the DACs Ive heard over the years. ... the DAC1 sounded the same to my ears as all of my other DACs (both discrete and built in).

Thats why Im done buying DACs - at least until I decide to start using a computer as a music source, which I have no current plans to do. If or when I do, I think an ODAC or something similar is the way I would go.

Palmfish,

I couldn't agree more. I doubt I could tell the difference between my current $1,000 DAC and an ODAC in a blind test, and I've owned all kinds of DACs. Other than really cheap units, I think they all sound the same once you control for strength of the output signal.

Best regards,
Adam
post #2902 of 5617
And by really cheap, I mean under $100.
post #2903 of 5617
Quote:
Originally Posted by DefQon View Post

Bit bright and shrilly top end.

+1, but I think that is the fault of the DT880s, not the Crack. ;-)
post #2904 of 5617
Quote:
Originally Posted by palmfish View Post

Well, the short answer then is... The O2 is fast, articulate, lean, and clear while the Crack is warmer, meatier, smoother, and more liquid.

Well said! I would add to this that the crack 's sound stage is also far better than my diy o2 with high Z headphones, and timbre is also more natural to my ears. o2 uses heavy global negative feedback to achieve its noise targets, and I tend to agree with the folks who have suggested that this translates into a tiny amount of treble glare. Generally speaking, listening to my crack is just a more immersive, enjoyable, and with upbeat music, toe tapping experience than listening to my o2.

Also, as far as tube amps go, bear in mind that crack is on the detailed and dynamic side of the spectrum. It sounds a lot faster, punchier and more exciting than something like a woo 3 - which I enjoyed for several years but proved, in comparison to the crack, slow, overly warm and flat from the stand point of dynamics. For me, there was no going back once I had finished my crack.

Finally, the crack has outstanding synergy with 300 ohm Senns, and I don't feel that the o2 pairs very well with these phones at all. I still use my o2 regularly in a tiny bedside rig, driven by an ipad4->cck->hub->odac, but I find it far better with my modded fostex t50rp's, w4's and even dt880's (250 ohm), than with my 650's or 800's. Assuming that I can manage the smd work, my long term plan is to build and replace the o2 with a se "wire" amp (since my side table is just too low and accessible to my toddler to run tubes in that spot any time in near future).
Edited by skeptic - 10/13/13 at 8:39am
post #2905 of 5617

I spent a few hours listening to music yesterday - about half of the time with my Crack and the other half with my Essence One Muses.

 

For a lot of my 80's vintage CDs (FLAC rips) the Crack adds just the right about of meat and body to compensate for the overly thin master sound. OTOH, some of my recordings that have a "boosted" bass in the recording (Daft Punk - Randon Access Memories for example), the Crack can sound a bit too thick and heavy and I prefer the more neutral-sounding Essence One.

 

What I started noticing yesterday though is that there is a slight "haze" or "veil" with the Crack when compared to the Essence One. In other words, the Essence One sounds just a little cleaner and clearer (but not brighter in treble).

 

It has me wondering if this is what the Speedball addresses and that I may be finally ready to go for it (when the govt starts paying me again, that is :rolleyes: ). My concern about the Speedball has always been that it will make my Crack sound more like my Essence One and I don't want that because I enjoy the unique qualities of both amps. However, if I can keep my Crack sounding the same, only cleaner and clearer, then it's a no-brainer to me.

 

Thoughts? Adam?


Edited by palmfish - 10/13/13 at 8:45am
post #2906 of 5617
The Speedball tightens the bass and drops the noise floor, but doesn't change the character of the amp. Although I haven't heard the Essence, I'm pretty comfortable in suggesting that they'll still sound very different.

With Speedball the Crack is still warm, creamy and musical, but a bit tighter and punchier.
Edited by Loquah - 10/13/13 at 2:50pm
post #2907 of 5617

Thanks for the feedback Loquah - I was hoping you would chime in.

 

The trouble I have is that the bass seems to be the major difference between the Crack and the SS amps I have owned/used in the past. The big, round, musical bass that adds warmth and body yet doesn't muddy up the mids or affect the treble. Yet I think that the upper bass warmth is contributing to the "haze" Im hearing, so I don't know what to think.

 

Tightening up the bass sounds good in theory, but if it loses that warm body, then it will be more "SS sounding" Im afraid.

 

I guess the only thing is for me to hear for myself. Perhaps another visit to BH HQ is in order. Listen to my Crack side-by-side with a Speedball Crack and decide. If I like it, I suppose I can get the Speedball kit on the spot and take it home with me :D

post #2908 of 5617
Quote:
Originally Posted by palmfish View Post
 

Thanks for the feedback Loquah - I was hoping you would chime in.

 

The trouble I have is that the bass seems to be the major difference between the Crack and the SS amps I have owned/used in the past. The big, round, musical bass that adds warmth and body yet doesn't muddy up the mids or affect the treble. Yet I think that the upper bass warmth is contributing to the "haze" Im hearing, so I don't know what to think.

 

Tightening up the bass sounds good in theory, but if it loses that warm body, then it will be more "SS sounding" Im afraid.

 

I guess the only thing is for me to hear for myself. Perhaps another visit to BH HQ is in order. Listen to my Crack side-by-side with a Speedball Crack and decide. If I like it, I suppose I can get the Speedball kit on the spot and take it home with me :D

If you're worried about the the "SS" sound, i think the best course of action before adding the Speedball for you would be to add a film cap or three in the power supply. I have a Solen 200uf 250v installed on the last (3rd) cap in the power supply. It's a tricky fit if you have film signal caps already like i do, but it does fit in the stock chassis just fine.

post #2909 of 5617
I agree that the Speedball doesn't change the overall nature/quality of the sound. I also agree with inserting film caps in the power supply. I found bypassing the last cap didn't do anything for me. Replacing all three made a big difference, but I can't say whether just replacing the last one would be enough to do the trick. It might.
post #2910 of 5617
$65 ea. for film capacitors?!?! Damn!

And these replace the large black and silver caps that are on there now? At least they look easier to install thanks to there long wire leads...

EDIT: Holy crap! Those solen caps are 60mm X 108mm!
Edited by palmfish - 10/13/13 at 6:37pm
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