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Crack;Bottlehead OTL - Page 138

post #2056 of 5900

Amcananey, what is your source with the HD 800 rig?  I've got 600s now and a Crack but no speedball yet.  I feel if I ever feel the need to upgrade it will be the 800s.  The reason I ask is my next upgrade will be a new Dac to replace the Nuforce HDP.

post #2057 of 5900

edit. sent pm instead


Edited by Armaegis - 7/26/13 at 12:22pm
post #2058 of 5900

Alright just placed my order.  Excited!! This is actully going to my very first amp building project, but I'm going to be receiving some help from my electrical engineer friend.  For all you guys who have experience buidling this amp, is there any common pitfalls we should be looking out for?  I really want to make this amp as clean and neat as possible so any useful tips would be greatly appreciated = D.  Thanks!! and hopefully I'll be part of the club and discussing tube rolling with you guys in a few weeks.

post #2059 of 5900
Quote:
Originally Posted by GaryPham View Post

Alright just placed my order.  Excited!! This is actully going to my very first amp building project, but I'm going to be receiving some help from my electrical engineer friend.  For all you guys who have experience buidling this amp, is there any common pitfalls we should be looking out for?  I really want to make this amp as clean and neat as possible so any useful tips would be greatly appreciated = D.  Thanks!! and hopefully I'll be part of the club and discussing tube rolling with you guys in a few weeks.


Just read the entire instruction manual and take your time and do everything slowly and surely. Youll be fine.

post #2060 of 5900
Quote:
Originally Posted by GaryPham View Post

For all you guys who have experience buidling this amp, is there any common pitfalls we should be looking out for?

 

This amp is pretty easy, but general advice...... take your time, plan everything well in advance, and get it right the first time. And irrespective of how most tooling discussion focuses on which soldering iron you should buy, I get the most 'joy' out of good quality pliers and wire strippers.

post #2061 of 5900
Quote:
Originally Posted by GaryPham View Post

Alright just placed my order.  Excited!! This is actully going to my very first amp building project, but I'm going to be receiving some help from my electrical engineer friend.  For all you guys who have experience buidling this amp, is there any common pitfalls we should be looking out for?  I really want to make this amp as clean and neat as possible so any useful tips would be greatly appreciated = D.  Thanks!! and hopefully I'll be part of the club and discussing tube rolling with you guys in a few weeks.

 

This article has some interesting notes regarding the build that seem useful (still waiting for my kit, so I have no experience from building it myself yet):

 

http://www.innerfidelity.com/content/marvelously-addictive-bottlehead-crack

post #2062 of 5900
How long does it usually take to receive the kit after ordering?
post #2063 of 5900

It just depends upon order volume. Right now we are working through a large number of orders from the recent sale. We have had to order an additional run of power transformers to cover all of the orders and it will probably be a couple or three weeks before we see them.

post #2064 of 5900

 Bottlehead shows Crack orders up till July 7th have shipped, I ordered mine on the 8th. DAMMIT. LOL!!

post #2065 of 5900

Congrats on the purchase.

 

Think of the wait as part of the shared-Bottlehead experience.  wink.gif

Quote:
Originally Posted by walls View Post

 Bottlehead shows Crack orders up till July 7th have shipped, I ordered mine on the 8th. DAMMIT. LOL!!

 

post #2066 of 5900
Quote:
Originally Posted by Jmstrmbn View Post

Amcananey, what is your source with the HD 800 rig?  I've got 600s now and a Crack but no speedball yet.  I feel if I ever feel the need to upgrade it will be the 800s.  The reason I ask is my next upgrade will be a new Dac to replace the Nuforce HDP.

I'm using an Audio-Gd Ref. 5-32. But I'll be blunt --- I'm deeply skeptical when it comes to differences between DACs. There are about 100 other things I would spend money on before "upgrading" my DAC. I have a number of different DACs, and I doubt I could tell them apart in a blind test...

(That said, if you catch me in the right (i.e., mostly delusional) mindset, you might be able to convince me that DACs based on the PCM1704UK chips sound better than DACs based on newer chips. Look up those chips if you're not familiar with them. Different technology from almost all other chips used today. I have a couple of DACs that use them, and they seem to be my favorites...)
post #2067 of 5900
Four tips:

1. There is a note in the manual about less noise if you wire a wire to terminal 14 instead of whatever the other option is. Terminal 14 gets very, Very, VERY crowded. You really need to work to get everything to fit. It's possible, but you will have to get creative and be patient.

2. NOTE THE DIFFERENCE BETWEEN "ATTACH" and "SOLDER". True, the manual mentions this, and there are only a few places where it is relevant, but never assume you're supposed to solder something unless the manual explicitly says to solder it. Just attach it, then wait until later in the manual when you are instructed to solder it.

3. At the end, you have to do voltage checks with the tubes in and the power on. To do this, put a couple of books or something under each end of the wood case to raise it a few inches, then flip the metal chassis over and lay it on top of the wooden case. Otherwise you won't have enough clearance for the tubes.

4. When the manual references the "ground bus", just use the ground terminal that is also referenced for the resistance checks.

Best regards,
Adam
post #2068 of 5900
Quote:
Originally Posted by amcananey View Post

I'm using an Audio-Gd Ref. 5-32. But I'll be blunt --- I'm deeply skeptical when it comes to differences between DACs. There are about 100 other things I would spend money on before "upgrading" my DAC. I have a number of different DACs, and I doubt I could tell them apart in a blind test...

(That said, if you catch me in the right (i.e., mostly delusional) mindset, you might be able to convince me that DACs based on the PCM1704UK chips sound better than DACs based on newer chips. Look up those chips if you're not familiar with them. Different technology from almost all other chips used today. I have a couple of DACs that use them, and they seem to be my favorites...)

Lucky you smily_headphones1.gif ignorance is bliss.
Believe me, some people can't even tell amps apart, best of all, some people can't seem to tell headphones apart.
Imagine how much money have they saved.
Edited by RedBull - 7/27/13 at 8:08pm
post #2069 of 5900
Quote:
Originally Posted by amcananey View Post

I'm using an Audio-Gd Ref. 5-32. But I'll be blunt --- I'm deeply skeptical when it comes to differences between DACs. There are about 100 other things I would spend money on before "upgrading" my DAC. I have a number of different DACs, and I doubt I could tell them apart in a blind test...

I was a skeptic too, but I'll wager that you'd be able to easily hear a difference between the HRT Musicstreamer II and the HRT Musicstreamer II+ with my HD650 (and either my Bottlehead Crack+Speedball or my Burson Soloist).  The MSII+ is clearly better... after I bought it used, I gave my wife a quick listen to prove I wasn't nuts.  It just took the opening parts of Elton John's "Take Me To The Pilot" to do so.

 

(Meanwhile, the MSII and the ODAC were so similar sounding that I was thinking it was snake oil until I heard the MSII+.)

post #2070 of 5900

I've been trying to consolidate all my little equipments into one, got myself the crack+speedball (currently on order), the audio gd 3.2 as the DAC and the hd650+cardas.

 

The other headphones that even come close to the price-range of the HD650 is the Audio Technica a900x and HFI 780, both closed headphones.  

 

Now, with that said, I hate the HD650s.  Sound feels extremely veiled, very very dark, and muddy.

 

Right now, as I'm waiting for the crack, I'm driving them out of an M^3 amp with Sigma11 PSU.  I realize that higher cost often doesn't equate to better quality, and I know it's been said over and over that SS amp's generally don't do good justice with the 650s, but I've always thought that the M^3 was supposed to sound closer to a tube-amp.

 

The 650 sounds dark, muddy, murky, definitely not relaxing by any means... and I definitely prefer the 780 or A900x to this.  Sometimes even the Grado 60 sounds better.

 

With that said, could I really be hoping for that big of an improvement with the Crack?  I still have really high hopes for the 650s, but it's not looking too bright right now.  I've no plan to upgrade to an 800 for a long while.  Any other headphones that I could potentially look into if the 650s just don't look right for me?

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