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400RB/800RB Sweet Spots ...??

Discussion in 'Amps and Cabs [BG]' started by tjh, Oct 9, 2013.

  1. tjh

    tjh Supporting Member

    Mar 22, 2006
    I have seen some written about fav amp settings when using these classics, but I thought it might be nice to have it in a more condensed thread .. also, to make it more relative, probably listing what you are using for bass/strings and cab, and style of music would help too ... looking forward to seeing your replies ...
  2. AdamR

    AdamR Supporting Member

    Sep 24, 2007
    Bethel CT
    800RB/Ampeg 810
    Spector basses, Rotosound strings tuned to Eb
    All voicing buttons out
    treble Noon
    High Mids 1:30
    Low Mids 3:00
    Bass Noon
    Playing Metal.
  3. Lownote38


    Aug 8, 2013
    Nashville, TN
    the sweet spot when I had a GK 800RB was the trash can. It kept having problem after problem.
  4. BillyRay

    BillyRay Supporting Member

    Jan 20, 2008
    This is what worked for me for years.

    400rb or 800rb.
    P-bass with rounds.
    Gain at noon.
    All filters off.
    Treble rolled off a smidge.
    Hi-mids flat.
    Lo-mids boosted to 1 o'clock.
    Bass flat or cut if room is boomy.
    Boost dimed.
    Master to taste.
    Through a 215 or two 115.

    Now with the ATK, I haven't found a setting that works as well in a hard rock mix, but I have gotten close by boosting the bass and low mids more.
  5. orangejulius3

    orangejulius3 Supporting Member

    May 6, 2013
    La Habra CA
    I have both right now.

    Gain @ noon
    All Voice filters: off
    Treble @ noon
    Hi Mid @ noon
    Low Mid @ noon
    Bass @ noon
    Boost @ 2pm or to taste
    Volume to taste/limit of speaker

    The 400rb I sometimes crank the boost knob.

    The 400rb is my personal favorite.
  6. The sweet spot for mine was the local Music Go Round. I loved how those horribly noisy opamps flew right out of my garage and changed into cash in my pocket... that I promptly paid rent with.

    In all honesty, it served its purpose while I owned it. After the first opamp in the pre fried, I got it fixed. The tech used a much more noisy replacement opamp. After the second time I killed it, I got it fixed and then kept it home. It did not like the heat in the practice space. I sold it because I needed the money.

    The real sweet spot was with the preamp section of an Ampeg VT-22 run through its effects loop, mostly to kill the sterile tone I got out of it. Worked great. I used a Peavey 810TX with it and an old Peavey 215 with spray painted cones. I played metal covers at the time. I ran the settings differently depending on which bass I ran through it.

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