Yes there are a few UK Cracks here I think shipping was around £35 I really cant remember what the import duty was perhaps someone else who has received one recently will chip in.
You are using an out of date browser. It may not display this or other websites correctly.
You should upgrade or use an alternative browser.
You should upgrade or use an alternative browser.
Bottlehead Amplifier Discussion / Comparison Thread: Crack, SEX & Mainline
- Thread starter Loquah
- Start date
Solrighal
Headphoneus Supremus
- Joined
- Jan 27, 2005
- Posts
- 4,247
- Likes
- 757
Thanks for the quick response. I expect I'll get hammered by the tax man.
- Joined
- Oct 31, 2010
- Posts
- 2,313
- Likes
- 57
I saw already assembled one from uk in for sale forum.
Also for those in US i'm selling the Crack i recently got from Matt so if anyone interested PM me before i post it tomorrow morning. I know there are several there already but they just stock units while mine has several upgrades
Also for those in US i'm selling the Crack i recently got from Matt so if anyone interested PM me before i post it tomorrow morning. I know there are several there already but they just stock units while mine has several upgrades
pduk
New Head-Fier
- Joined
- May 8, 2014
- Posts
- 3
- Likes
- 11
I'm sorely tempted to get myself a Crack, especially since I read it pairs very well with my HD650's. Has anyone shipped the kit to the UK? Does it travel well? I haven't used a soldering iron since school so is there a particular one I should be looking at?
I ended up paying £26.96 import for a crack plus speedball, which wasn't too bad (this was in the discount sale a few weeks ago so it was something like 5% off).
It got here perfectly well, they package everything up very well. I used a cheap 40W soldering iron with no problems, though I have done quite a lot of soldering in the past. People seem to think a temperature controlled solder station is a good idea.
Solrighal
Headphoneus Supremus
- Joined
- Jan 27, 2005
- Posts
- 4,247
- Likes
- 757
£26 isn't too bad really. I would be happy with that. I need to check out the FS thread though if there's one in the UK for sale.
Thanks.
Thanks.
MoatsArt
Banned Member: W0lfd0g
- Joined
- Jan 25, 2014
- Posts
- 373
- Likes
- 25
Let me know if you want a pair of those RTI 10uF teflon caps. I bought some from a TC tubes that I wont be using (getting out of DIY & tube amps). Selling for $210. Send me a PM if you are interested.
Cheers
Nathan
Cheers
Nathan
dsavitsk
MOT: ECP Audio
- Joined
- Aug 3, 2003
- Posts
- 2,883
- Likes
- 44
. Recall that mainline is very similar in design to the ecp l-2, which sold for $2,500.
Mainline was derived from our own $7500 6C45pi based 'big preamp/headphone amp' from 2003, designed quite a few years before the l-2 came about. And of course the spud concept goes back to the original WE417A based spud amp, built at a VALVE meeting in my basement around about 1994-5. Mainline is not a spud, as we use a hybrid shunt regulator that adds one more tube to the amp. I wasn't aware of the l-2. It is rather flattering to see others use a topology we have pioneered.
Sorry to reply to such an old post, but I thought I'd provide some context. Back in the day I saw Gary Dahl's Espressivo amp. I wanted one but could not afford the parts, so I decided to replicate it with cheap parts. Using the same basic topology, but under $100 in hardware, I made the Less-pressivo, which my wife cleverly re-spelled as the L'espressivo. I made a lot of modifications to the circuit over time (which are sadly offline right now due to a server crash -- maybe I'll find time to revive them) including making 71A based version using OPTs from Intact Audio. That is, I managed to make it really expensive again.
After a lot of experiments and some subtle circuit changes, I decided to make a few and sell them. I thought about calling the amp the L'espressivo, but I didn't want to step on Gary's toes, and I was unable to reach him to ask if he minded. So I called it the L-2 instead. I was aware of the Bottlehead amp which I assumed to be a parafeed spud (and that I think it is cool, and I think the Mainline is cool) but the L-2's direct progenitor is the above mentioned Espressivo. Maybe Doc can illuminate whether the Espressivo came from the 417 experiments.
Doc B.
Member of the Trade: Bottlehead Corporation and The Tape Project, LLC
Hi Dave!
Gary and I live about five miles from each other. He did part of the build of his amp in my basement after I built the original proof of concept prototype for my big headphone amp, which was a 6C45pi spud with 6CK4 hybrid shunt regs. This looks to be a pic of the test fit of the layout of that POC amp, from maybe about 2001? The TL404 outputs used went into the big headphone amp I built after that. I try to purge the old project stash on a regular basis but I seem to recall that chassis is still kicking around in the old lab. On a side note that big amp from 2003 ended up being converted by us to use 437As a year or two ago, at the request of the client who purchased it.
dsavitsk
MOT: ECP Audio
- Joined
- Aug 3, 2003
- Posts
- 2,883
- Likes
- 44
Cool. To add to the lineage, we also did the Torpedo which is the same basic design, but with less expensive parts -- an actual L'espresso. Sounds remarkably good still.
Doug
Doug
Doc B.
Member of the Trade: Bottlehead Corporation and The Tape Project, LLC
Cripes, did I type Dave? I was thinkin' Doug. Sorry about that.
MoatsArt
Banned Member: W0lfd0g
- Joined
- Jan 25, 2014
- Posts
- 373
- Likes
- 25
Pretty happy with the way my Submissive turned out. Highly recommended for use with the Crack. I imagine that it would be a worthy companion for the SEX amp as well.
spacequeen7
500+ Head-Fier
where did you find them knobs Art ?
P.S. looks great
P.S. looks great
Armaegis
Modern Modder Man of Manitoba
HTML... uphill, both ways!
- Joined
- Oct 18, 2009
- Posts
- 12,552
- Likes
- 1,403
At first I thought he was using doorknobs...
Nathan, great job your submissive looks real Gucci. I also would like to know where did you find those knobs?
MoatsArt
Banned Member: W0lfd0g
- Joined
- Jan 25, 2014
- Posts
- 373
- Likes
- 25
Thanks guys.
I bought these from a German eBay store, which I am having trouble tracking down atm.
Have two spare knobs that I was going to give to whoever buys my submissive.
Cheers!
Nathan
I bought these from a German eBay store, which I am having trouble tracking down atm.
Have two spare knobs that I was going to give to whoever buys my submissive.
Cheers!
Nathan