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Jackson Ampworks Bass Amp Poll

Discussion in 'Amps and Cabs [BG]' started by JacksonAmpworks, Nov 25, 2005.


  1. 6SL7 Clean Channel with Separate 12AX7 Dirty Channel

    51 vote(s)
    77.3%
  2. 6SL7 Clean Channel with Gain Boost

    15 vote(s)
    22.7%
  1. JacksonAmpworks

    JacksonAmpworks

    Nov 19, 2005
    Keller, TX
    President: Jackson Ampworks
    If you've been following the recent posts regarding that Jackson Ampworks Bass Amp that I'm developing, the topic of conversation has recently turned toward the question of whether we should offer a second channel that has slightly more gain, or just add an addition gain stage to the existing 6SL7 channel.

    Here is the link to the discussion:

    http://www.talkbass.com/forum/showthread.php?t=213749

    Which would you prefer? Please vote so your voice can be heard!
     
  2. Plain Old Me

    Plain Old Me

    Dec 14, 2004
    I would prefer the 2 channels with a blend control.
     
  3. jokerjkny

    jokerjkny

    Jan 19, 2002
    NY / NJ / PA
    hmm...

    if you can fit a two channel setup in a bass amp that's still within the 23" width parameter, you'd have an amp unlike any i've yet to try. :hyper: :bassist:

    also, are we talking two separate EQ's? or one single EQ ala those high priced *umble clones?
     
  4. haujobb

    haujobb

    Dec 16, 2004
    Wallaceburg
    TBH, when this first idea came about, I wasn't to confident in the design. Now that you seem to have imersed yourself in the bass world, you seem to have a grasp of what a working bassist needs. Any chance you will be posting a final list of specs because I'm gaining interest in this amp.
     
  5. msquared

    msquared

    Sep 19, 2004
    Kansas City
    I don't care how you do it as long as it's blendable. Ideally with a foot pedal.
     
  6. Joey J

    Joey J

    Jul 12, 2005
    What about speakers? With 100 watts a modern design high efficiency speaker would be the ticket. Please don't tell us you're going to the trouble of creating a sweet head just to couple it up with another 2x10/4x10/6x10/8x10.
     
  7. JacksonAmpworks

    JacksonAmpworks

    Nov 19, 2005
    Keller, TX
    President: Jackson Ampworks
    Glad that you like where we're going! Here is today's list of features!

    01.) 6SL7 front end Channel 1
    Channel 1 Controls

    Volume
    Treble
    Bass
    Ultra-Lo and Ultra-Hi Switches
    Tone Stack Bypass​

    02.) 12AX7 front end Channel 2
    Channel 2 Controls

    Volume
    Treble
    Bass
    Ultra-Lo and Ultra-Hi Switches
    Tone Stack Bypass
    Master​

    03.) 6550/KT88 power tubes (6x @ 300W)
    04.) Resonance and Presence controls (Global)
    05.) Direct Out (XLR) - Selectable PREAMP (post FX Loop) or SPEAKER Tap
    06.) Tube Buffered FX Loop
    07.) Fixed Biased with Bias Meter
    08.) 2-4-8 Ohm Selector Switch
    09.) Speakon Connectors (1/4" and Speakon)
    10.) 100W/200W/300W Switch
    11.) Cathode Disconnect Standby (silent recording!)
     
  8. JacksonAmpworks

    JacksonAmpworks

    Nov 19, 2005
    Keller, TX
    President: Jackson Ampworks
    I'm intrigued by your request. Tell me more. What specifically did you have in mind? Just a control that blended between the two channels? Or a foot pedal that did the same?
     
  9. JacksonAmpworks

    JacksonAmpworks

    Nov 19, 2005
    Keller, TX
    President: Jackson Ampworks
    I may offer a speaker cabinet in the future, but for now I'd like to really concentrate on offering the amplifier. Just imagine the discussion that creating a speaker cabinet will involve! :)
     
  10. Fretless5verfan

    Fretless5verfan Supporting Member

    Jan 17, 2002
    Philadelphia
    I'm pretty sure he meant an IOD style footpedal that blended the channels together. It's pretty useful for dirtying up the tone on the fly, but i think it'd be impractical with this particular amp. I think a footswitch would be better. but this is all IMHO, IMWO, IME, YMMV, AHSG,HSUHAUOSUA, etc. :p :D
     
  11. Aj*

    Aj*

    Jun 14, 2005
    West Yorkshire, UK
    I'd have to admit when it comes to the poll I really wouldn't be able to decide with my limited experience but damn, you guys are building one fine amp, keep it up! I'm glad you've gone up to 300 watts, that seems about reasonable. And it strikes me you've managed to put in everything that any bassist could ever want from a tube amp. Nice!
     
  12. JacksonAmpworks

    JacksonAmpworks

    Nov 19, 2005
    Keller, TX
    President: Jackson Ampworks
    That's the idea! I want this amp to be the "go to" amp for players that are looking for the best tone and the best features possible!
     
  13. No mid controls at all?
     
  14. tombowlus

    tombowlus If it sounds good, it is good Gold Supporting Member

    Apr 3, 2003
    North central Ohio
    Editor-in-Chief, Bass Gear Magazine
    I had thought about asking for a blend option (you could dial in an overdriven tone on the 12AX7 channel and then blend it with the clean 6SL7 channel for grit, but with retained fundamental), along with a footswitch for Ch.1/Ch.2/Blend. I would find this functionality to be a bonus. But, on the flip side, this might run contrary to your idea of keeping the signal path for the 6SL7 channel as "pure" as possible. Again, it's your call. I'd like the blend feature (and/or the ability to blend in some clean low frequencies to Ch. 2), but your goal of uncompromised tone is also one that I value (above all else, in fact).

    Tom.
     
  15. Akami

    Akami Four on the floor

    With the footswitch activated blend you could have a front panel balance knob which would allow the exact level of each channel desired.
     
  16. tombowlus

    tombowlus If it sounds good, it is good Gold Supporting Member

    Apr 3, 2003
    North central Ohio
    Editor-in-Chief, Bass Gear Magazine
    +1 That's what I was meaning, but apparently not saying. :p
     
  17. Fretless5verfan

    Fretless5verfan Supporting Member

    Jan 17, 2002
    Philadelphia
    ooooooooooo :hyper: +1
     
  18. msquared

    msquared

    Sep 19, 2004
    Kansas City
    As F5F guessed, the SWR Interstellar Overdrive style blending between the clean and dirty (which can be done with a wah-style footpedal) is my feature request.

    And yes, setting the "endpoints" of the clean/dirty fade would be really handy.
     
  19. JacksonAmpworks

    JacksonAmpworks

    Nov 19, 2005
    Keller, TX
    President: Jackson Ampworks
    The Baxandall tone stack (which both channels will have) by nature has a tremendous control of the Mid Range. If you lower both the Treble and Bass in tandem, you will get a Mid increase, however if you raise both the Treble and Bass in tandem, you will get a Mid decrease.
     
  20. JacksonAmpworks

    JacksonAmpworks

    Nov 19, 2005
    Keller, TX
    President: Jackson Ampworks
    The blend idea is cool but I'm giving every possible effort to keep these channels separate in order to keep the tone of each channel distinct and pure. I'm afraid that blending the two channels would defeat this effort. I'm like you, the tone has to be pure or nothing else really matters.