Follow-up on the Vietnamese Crack...

Guy 13 said:
It is a fact that the Crack is optimized for 300-600 Ohms heaphones,
however, it can drive load down to 60 Ohms.
I tried my Sennheiser HD570 at 60 Ohms and they sounded good,
except for the bass that was not too good.
Muddy, no impact, not natural, not really listenable...
You are kind of contradicting yourself.  This is the exact reason that it can't drive loads down to 60 Ohms.

 
Hello Guy,

I don't mean any offense.

There's just the opportunity for people to read that the Crack works well with 60 Ohm headphones, when in fact there will be a great deal of distortion and bass rolloff, which are not the ideal circumstances under which to judge the circuit.

-PB
 
Hi Guy, Speedball is the name of the mod. I thought you had it already, it may be what you are looking for.

Your descriptions of life in Vietnam, come across as anything but boring...John 
 
Guy,
No offense taken. It seemed like a typo, and I know English isn't your native language. I always put a note in when I edit someone's post to keep it all above board (and I generally prefer to not edit posts when avoidable).

 
I think this is a very nice thread.
It is like a travellers chronicles with letters home.
Very involving.
Should have a theme song.

Something like "Speedball! Ta da dum..."

But seriously, I think I have read every one entry and can almost feel how
hot and damp it must be in Vietnam. I have sadly only been to Malaysia.
Guy, I am cheering You on in Your quest for The Sound.
 
Thank You very much for the offer.
I reside up here in the Fjords of Scandinavia, however
It would make a very long flight.
Hope You find the sound You are looking for.
 
Guy 13 said:
Hi all.
The other day I met a nice Vietnamese guy via the Bottlehead Forum.
He owns a Crack headphone amplifier like mine, but his, as the Speedball up-grade
and one day, hopefully before I die, he will come to my house with his amplifier
and his (Expensive and heavy - 18Kg) Sonic BG NFD or B DAC unit.
He told me that his up-graded Crack will make my Sennheiser sound less veiled and dark.
I am very anxious to hear that with my own ears.
I have a tendency to not believe people, only believe my own two 66 years old ears.
If the Bottlehead Speedball up-grade makes my HD650 less dark,
I could be saving about 275 USD. (400USD for the HD600 and 125 USD for the Speedball)
But, I will stay put until I hear his Crack.

Guy 13
Hi Mr.Guy,

Haha, I promise I'll bring my Crack to your house in a very near future. No worries. Stay tuned!

Warm regards,
Kratos.
 
Guy 13 said:
Hi Kratos.
Where did you get the idea to come up with such a bizarre
nick name like that?
What in the world does Aeolus Kratos means?
To me, it sounds like a very rare contagious disease... :)

Guy 13

Last time you were in my house,
you remember I took a picture of you and me,
well, guess what?
I forgot to put a memory card in my camera.
Stupid me, well, maybe I am not stupid,
but I am definitely absent minded.
Can I get a second chance when you come to my house next time?
Hi Mr.Guy,

About my nickname, I initially tended to just use 'Kratos' ( which is the main character in the 'God of War' video game ), but I finally came up with this nickname because 'Aeolus' is my brother's one. Not sure what 'Aeolus' means, but it sounds fun  :D

Haha, yes, of course you can. I'm not shy of being taken pictures, because I'm a good-looking guy  8)

Regards,
Kratos.

 
Guy 13 said:
Now, what will happen if the Crack Speedball up-grade makes
an improvement on the sound?   

That is generally the idea behind an upgrade.  (It's also both audible and measurable)
 
You might consider changing the title of this tread to "The Guy Diary's"  :D I will keep a eye out for new entries!
 
The forum is a very inefficient place to try to post a diary because the format is not intended to showcase one person's thoughts ahead of those of others. Blogs have been developed specifically for that kind of thing, and I would suggest you start one if you wish to post your daily experiences. Come to think of it that might be a more focused way for Grainger to post his daily musings too.
 
Grainger49 said:
Dan,
I guess this is the source of the attitude I have been feeling here.  I started a thread in Technical Topics about the cause of capacitor failures.  That is a technical topic.  It was moved to Grainger's Corner.

I shared the great sound upgrading a part per channel in Digital and it got moved to Grainger's Corner.  I've been confused for a while.
Grainger, you were posting in one of those threads about "missing posts" in that thread, and those missing posts were in the other thread.

There is no doubt that you were confused, so we merged the two topics so that you could find your missing posts that weren't actually missing.
 
There are threads here in the Bottlehead kit related forums that deal with a specific topic. A lot of newbs go through them to learn about our products. If someone uses one of those threads for a personal, shall we say digression, from the Bottlehead related subject matter it makes the thread less functional for the reader.

Grainger, you're a great guy and people really appreciate your posts that are offered as helpful advice. What I am suggesting is that we appreciate your posts and those of everyone else that deal with the topic at hand. Multiple threads about other gear like aging CD players and maybe some of the posts that are more of a conversational nature like the drifting of this thread away from the Crack amp to more general diary entry that we have seen lately might be adding enough non-specific material to certain forums and to make it a little more difficult for users to get to the answers they are looking for.

It's not a matter of uninviting, and this is not a snub. I have even gone to the effort to give you your own forum because you seem to like to post here a lot. Your post count is quite high, higher than anyone else by a goodly amount. OT posting is not a bad thing, I certainly post OT stuff here like others do. My suggestion is simply that if we can all be a little thoughtful about what and where and how often we are posting we can keep the forum a really useful tool for the dissemination of info about Bottlehead products and keep it entertaining at the same time.
 
JamieMcC said:
You might consider changing the title of this tread to "The Guy Diary's"  :D I will keep a eye out for new entries!

Hi all.
I won't change my tread to : The Guy diary's,
I will simply post on Audio Circle under Guy 13 everything I want to share
and there is a lot that I want to share,
something that I already do and that is appreciated by many AudioCircle members.
Anyway, thanks for the suggestion.

Guy 13
 
Hi all.
Many of you have been following my misadventures
or my partial un-satisfaction with my HD650 headphones.
Well let me share with you the following happy event that happened today.
My audio friend Mr. Khiem and I have set up a meeting at his house so I could listen to his Bottlehead Crack, but his, contrary to mine, with a Speedball upgrade.
First his system consisted of the following:
An HP laptop with files downloaded from the Internet I presume they are Lossless ??? We also used my CDs on his laptop.
An AudioGD NFB7 DAC with a Signal Cable coaxial cable
A Bottlehead Crack with the Speedball upgrade.
(Not sure of the 12AU7 + 6080 ?)
…and my super comfy HD650 and his less comfy to my ears BD T1.
Within 10 seconds, I know the sound was better with his Crack,
the veil was lifted and the darkness was gone.
What a pleasure to listen to the music, really enjoyable.
I would have never believed that the improvement/sound quality could be that much better.
The highs we clear as crystal, the mids were better and the bass, well maybe also better, but I am not sure, they were not worst that’s for sure.
Overall presentation was more enjoyable and not aggressive at all.
Then I tried his BDT1 comfortable, but I still prefer mine, because they are lighter and my HD650 surround the ears.
The bass on the T1 is a little better, minds you, with some music it sounded a little boomy, but in general was a little better, but I can’t complain of the bass of my HD650, very satisfying.
The mids and highs are clearer, probably a little more natural than my HD650, but since I’ve got the HD650 and they are paid for, I will keep them.
I have finish dreaming of the HD600, I will keep my HD650 because they sound good, with the Speedball upgrade that is.
Now, I have to find the money (Robbing a bank my be a possibility) to buy the upgrade and also find someone to do the soldering and installation, minds you, Khiem told me that he knows someone here on planet Vietnam that can do it for 50 USD, that sounds a little expensive, but if it’s done right, then I guess it’s O.K.
I am thinking of another meeting, but that one will be at my house with his Crack to make a side by side comparison with my Rega Apollo, my Signal Cable Interconnects.
Then I will be 100% sure that the weak link in my headphone system is the missing Speedball upgrade.
So for now the conclusion is: Sennheiser HD650 will stay at home, won’t go anywhere.
Happy temporary ending.

Guy 13

Note:
Please don’t tell me that you knew the Speedball upgrade would make a big/huge difference in the sound quality.
Lately I’ve decided to believe no one and do my own experimentation and that’s what I just did and I am happy I did it
by myself with my own pair of ears.








 

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