Bottlehead Crack 1.1

Discussion in 'Tube Gear' started by opa1, Feb 12, 2018.

  1. opa1

    opa1 Moderator Staff Member

    The Crack 1.1 arrived today. This is a kit for a OTL headphone amp. It's designed for 200Ω impedance phones and up. Came well packed. Nice looking kit!
    No affiliation:

    I'm going to build it stock, no modifications. I do want to powercoat the top plate and transformer end bell. I'm not sure what colors to use. I like the way @marantzfan did his 2A3. Thoughts on colors?

    Attached Files:

    Last edited: Feb 12, 2018
  2. TubeHiFiNut

    TubeHiFiNut Administrator Staff Member

    Very nice, Mark. :)

    Glad to see you having fun with our hobby. :)
    opa1 likes this.
  3. Redboy

    Redboy Knobophobe

    Zombie green, of course.
    opa1 likes this.
  4. marantzfan

    marantzfan Administrator Staff Member

    You're building a crack now Mark? That should be a quick and easy one considering your skill set. :)

    As for colors.... I always like the Bottlehead Special Edition series they did briefly that had a dark top plate, walnut wood base, copper painted end bells and cream colored chicken head knobs. Like this:

    Audionut and Fran604g like this.
  5. opa1

    opa1 Moderator Staff Member

    That does look classy! I'll have to check with my powercoater on colors he has in stock.
    Now that would be different! :)
    Redboy likes this.
  6. Thermionics

    Thermionics Post Whore In Training

    I was going to suggest a Porsche Guards Red / Ferrari 'Ticket Me' red for the top plate, with flat grey for the bell-end, and Steinway black for the base.

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  7. opa1

    opa1 Moderator Staff Member

    That Red and Black would match my avatar. :)
    Last edited: Feb 12, 2018
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  8. airdronian

    airdronian Junior Member

    The black top plate is gonna show the dust.... are you thinking of staining the alder wood ?
  9. inthewoods

    inthewoods AARP Member

    And I wouldn't be able to wait for any of that fancy stuff. Sound first and foremost before cosmetics. I would have that up and running before breakfast.
    TubeHiFiNut, opa1 and marantzfan like this.
  10. opa1

    opa1 Moderator Staff Member

    That's a good thought! I didn't consider that. Yeah, I'll stain the base.
    I waited 5 weeks for the kit. I guess a little longer wait won't hurt. :)
  11. Thermionics

    Thermionics Post Whore In Training

    Also an awesome BÖC song (and cover by Minutemen).

  12. rogerfederer

    rogerfederer Junior Member

    i built a bottlehead smash preamp. one thing i regret is that i didn't upgrade the pots. i bet you could sneak in a stepped attenuator or even an alps pot and it would be a nice improvement.
    opa1 likes this.
  13. marantzfan

    marantzfan Administrator Staff Member

  14. rogerfederer

    rogerfederer Junior Member

    thanks, marantzfan. however, i don't like the smash enough to put more $ in it. i have pretty much gone TVC/LDR/passive. the smash has too much gain for any of my systems and the tubes go microphonic if you have much vibration (you have to isolate it like a turntable).
  15. opa1

    opa1 Moderator Staff Member

    I've thought about the attenuator. That's one area that a upgrade would be a good idea. I wouldn't want a stepped one though.
    Top plate and bell are at powercoater. Secret colors. :)
    rogerfederer, Fran604g and airdronian like this.
  16. MikeyFresh

    MikeyFresh Moderator Staff Member

    Top secret, or do Haven members have the necessary security clearance/credentials?
    Last edited: Feb 13, 2018
    marantzfan and opa1 like this.
  17. Audionut

    Audionut Next Round Is On Me

    Can’t wait to see the coated pieces. Any hints on the cooler/s?
  18. opa1

    opa1 Moderator Staff Member

    It will be different. :) It's a color I've always liked but, haven't seen used much. I'm working on the wood base this week. I'm staining it very dark, I hope.
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  19. Fran604g

    Fran604g Just Call Me Junior

    I gots da popcorn workin'...:)
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  20. Thermionics

    Thermionics Post Whore In Training

    Watching with interest, Mark.
    opa1 likes this.

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