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Arkham Sound Introduces Abyss Tube Preamp

Discussion in 'News & PR' started by TalkBass, May 17, 2017.


  1. TalkBass

    TalkBass News Poster

    Mar 12, 2004
    South Portland, ME – Introducing the Abyss -- a versatile, mid-priced addition to the Arkham tube preamp lineup. Featuring the same core circuit as the Bullet and Zephyr models, the Abyss is housed in a heavy duty steel chassis which may be used standalone, or mounted as ½ rack 2U!

    Features:
    - 12AX7 preamp tube* selected for good tone and low microphonics, and run at correct voltages (not a starved plate design)
    - Mosfet buffered Lo-Z output, drives modern solid state power amps or recording interfaces with ease.
    - Balanced DI output, featuring a hefty Edcor transformer for full frequency response. Ground lift switch for good measure.
    - Gain, Treble, Bass controls - uses a James Tonestack to provide a wide adjustment range with minimal interaction.
    - Range control – sweeps the tonestack "midpoint" anywhere between 150Hz and 1KHz
    - Hi switch – adds a "bright cap" to the circuit to open up the high frequencies a bit.
    - Mid switch – provides a healthy bump around 250Hz
    - Lo switch – another healthy bump, this time at 80Hz (without any mud!).
    - HPF switch - a gentle roll off beginning around 100Hz
    - DC referenced heaters, for ultra quiet operation.
    - Turret board construction, Mil-spec Teflon wire, etc.
    - Carling switches, Switchcraft jacks, Belton sockets, etc.
    - Powder-coated steel 2U, 1/2 rack chassis. 8.5" x 8" x 3.5". Weighs ~5 lb.
    - Includes rack ears for mounting, and rubber feet for standalone use.
    - Anodized aluminum faceplate, all stainless steel hardware.

    *6SL7 version available for an additional $50

    -- Need an export version? Please inquire.

    $650 + shipping. Built to order, current lead time around 4 weeks.

    Visit www.arkhamsound.com for more info

    abyss3.
    abyss5. abyss4. abyss3. abyss2.
     
  2. Pbassmanca

    Pbassmanca In the pocket n' thumpy. So woody, so greasy...

    This preamp looks really nice. It has a similar styling to Mesa's Carbine series , which is a very good thing!
     
  3. 5StringPocket

    5StringPocket Supporting Member

    Jan 11, 2006
    Texas
    What is the impedance of the low Z output? I know the XLR output can drive the preamp in of a power amp but will the low Z work into the passive instrument input of a bass amp, leaving the DI free for FOH?
     
  4. Arkham Sound

    Arkham Sound Supporting Member Commercial User

    Nov 16, 2014
    New England
    Owner/Operator Arkham Sound --Vacuum Tube Amplifiers--
    Lo-Z out is ~250 ohms, matches well with most any power amp input.
    The XLR is meant for FOH, or recording situations.
     
  5. 5StringPocket

    5StringPocket Supporting Member

    Jan 11, 2006
    Texas
    Can this be equipped with a mute switch?
     
  6. Arkham Sound

    Arkham Sound Supporting Member Commercial User

    Nov 16, 2014
    New England
    Owner/Operator Arkham Sound --Vacuum Tube Amplifiers--
    Yep
     
    5StringPocket likes this.
  7. 5StringPocket

    5StringPocket Supporting Member

    Jan 11, 2006
    Texas
    Great, that's useful for a live performance rig. How is the sound profile different with the 6SL7 tube versus the 12AX7?
     
  8. Arkham Sound

    Arkham Sound Supporting Member Commercial User

    Nov 16, 2014
    New England
    Owner/Operator Arkham Sound --Vacuum Tube Amplifiers--
    The 6SL7 has a nice round sound, big plate structure... but is plagued with hum issues and microphonics. It's tough to find good ones.
    Using 12AX7, I find nothing missing in the tone, and it behaves nicely with no inherent noise.
     
    Brian Reihms likes this.

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