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Arkham Zephyr Tube Bass Preamp

Discussion in 'Amps and Cabs [BG]' started by kringle77, Mar 16, 2015.


  1. kringle77

    kringle77 Supporting Member

    Jul 30, 2004
    Massena NY
    Here are two videos, I'll post the spec's tomorow night. Enjoy!



     
  2. Sounds Great! Micah really knocked it out of the park with this one. I loved my Arkham Octling, and wish I could keep all the gear. With this as a prospect I am not too sad now. Maybe next year I will have some funds to pick one up.
     
  3. Mikeee71

    Mikeee71

    Sep 6, 2013
    When will these be available for sale? The website didn't have any info.
     
    sratas likes this.
  4. kringle77

    kringle77 Supporting Member

    Jul 30, 2004
    Massena NY
    This is an idea that I went to Micah with and he helped make it happen so, it's a one of a kind for now. I just thought it would be a more practical and versatile design than the octling. His work is so clean and right. I would have liked to do an active svt style mid, and micah can do do it, but it would have really jacked up the cost and, I already have an svpcl for that anyway. So, they are relatives, each with some of their own thing happening. The ampeg is more about mid variety and the Zephyr has fatter lows and prettier highs without being scooped. It can do rougher mids than the ampeg. I mean really, it is an ampeg design with some tweaks. It has alot of tricks using alittle circuitry where the ampeg has lots of tricks using lots of circuitry. I'll try to post specs and pics tonight.
     
  5. Micah's high boost circuitry is pretty amazing. The Octling has this clear sweet top end with out being harsh.
     
    wyrtti likes this.
  6. Passinwind

    Passinwind I Know Nothing Supporting Member Commercial User

    Dec 3, 2003
    Columbia River Gorge, WA.
    Owner/Designer &Toaster Tech Passinwind Electronics
    Thanks for taking the time to do those vids Chris. Looking forward to seeing some closeup pics.

    In the point in the second video where you mention rattling fillings, listening through my cans there is finally right around enough bass for my taste, maybe the first time I've heard that in any of your videos. All those other sounds are great for what you (and many others) do, and no diss intended, of course...[​IMG]
     
  7. kringle77

    kringle77 Supporting Member

    Jul 30, 2004
    Massena NY
    No offense taken at all. My other videos were taken in my living room so, the volumes were pretty low. The basement videos all should be a bit louder and that helps. The Zephyr is overall fatter and fuller than the ampeg but, I do not prefer one over the other. The first version actually was too fat and we tweeked that. A real woofer destroyer if you got carried away.
     
  8. This is high on my gas list.
     
  9. Passinwind

    Passinwind I Know Nothing Supporting Member Commercial User

    Dec 3, 2003
    Columbia River Gorge, WA.
    Owner/Designer &Toaster Tech Passinwind Electronics
    Roger that. I don't really prefer any one tonal direction over another either, just whatever works in my present playing contexts.
     
  10. Arkham Sound

    Arkham Sound Commercial User

    Nov 16, 2014
    New England
    Owner/Operator Arkham Sound --Vacuum Tube Amplifiers--
    Hi gang, Chris asked me to post a few pictures so here goes.
    These were taken at different stages of the build, the final version has a few slight changes.
    Zephyr%20Diag%20Sm.
    Zephyr%20Front%20Back%20Sm.
     
    seang15, wyrtti, svtb15 and 2 others like this.
  11. Arkham Sound

    Arkham Sound Commercial User

    Nov 16, 2014
    New England
    Owner/Operator Arkham Sound --Vacuum Tube Amplifiers--
    And the inside..
    Zephyr%20Guts%20Sm.
     
  12. JBNeedsBeer

    JBNeedsBeer Supporting Member

    May 13, 2011
    New Brunswick, NJ
    Out of curiosity, which tubes (if any) are being used in the circuit?
     
  13. Chef

    Chef Moderator Staff Member Supporting Member

    May 23, 2004
    Columbia MO
    Staff Reviewer; Bass Gear Magazine
    that looks like good work
     
    murphy likes this.
  14. kringle77

    kringle77 Supporting Member

    Jul 30, 2004
    Massena NY
    There's my baby!
     
  15. Arkham Sound

    Arkham Sound Commercial User

    Nov 16, 2014
    New England
    Owner/Operator Arkham Sound --Vacuum Tube Amplifiers--
    12AX7 preamp, 12AU7 cathode follower.
     
  16. callofcthulhu

    callofcthulhu

    Oct 16, 2012
    Damn that sounds great...
     
  17. Mikeee71

    Mikeee71

    Sep 6, 2013
    When can I buy one? I'm Gassin!
     
  18. Dave W

    Dave W Supporting Member

    Mar 1, 2007
    White Plains
    Awesome!

    I'm still digging my Octling
     
  19. MarkA

    MarkA *** Supporting Member

    Sep 26, 2008
    Finally listened to these on a good set of cans and heard a few things I hadn't heard before. For one, there really is a lot of bass on tap. Two, the tone controls, while not immediately intuitive to me, offer more variation than I thought at first. The Range control, in particular, seems powerful.
     
  20. Arkham Sound

    Arkham Sound Commercial User

    Nov 16, 2014
    New England
    Owner/Operator Arkham Sound --Vacuum Tube Amplifiers--
    These will be built to order for the next several months, until I get my act together :D
     

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