Trace AH250SMX pre-shape not staying on

Discussion in 'Amps and Cabs [BG]' started by ttyR2, Jan 5, 2009.

  1. ttyR2


    Feb 23, 2003
    Athena, OR
    Should the Pre-shape circuit (which uses a momentary switch) "remember" its state when the amp is off? The EQ circuit does and it's activated by a momentary switch. The pre-shape resets to being off ever time the power is turned off. Any other TE owners out there able to verify how it's supposed to work?
  2. duff2

    duff2 Guest

    Dec 16, 2007
    Normal behavior for this amp at power up is EQ ON and PRESHAPES OFF, regardless of their on/off state when the amp was last shut down.

    That's a killer amp you have there. What cabinet are you using it with? I liked it best with a P-Bass and a 1x15.

  3. ttyR2


    Feb 23, 2003
    Athena, OR
    I'm scrounging around for a good clean 1518 and a 1048. Using a Cort bass through it at the moment.
  4. OxJohnson

    OxJohnson Guest

    May 28, 2007
    Atlanta, Georgia
    That is the behavior on mine too... the only thing that I don't like about it is the standby pop... but there is supposedly an easy fix for that.

    It is a KILLER amp and sounds VERY loud for the rated power.

    Good score!

  5. Kelly Lee

    Kelly Lee Yeah, I'm a guy! Supporting Member

    Feb 17, 2004
    Marana, AZ, USA

    That is just the way they work.