Trace Elliot GP-12 Series 6 basic questions

Discussion in 'Amps and Cabs [BG]' started by lildrgn, Dec 29, 2014.

  1. lildrgn


    Jul 11, 2000
    Seattle, WA
    I have had this head for years and years. I usually play through it like this:

    Passive SB-2 Bass>Tuner>Sansamp>TE via passive input

    Just for fun today, I decided mess around. My amp has the following 4 inputs, which I never use:

    Effects Send/Return and Line In/Out (pre amp link)

    When I plugged the bass or signal line from the chain above into any one of those 4 inputs, the amp played and sounded quite loud. Neither the gain or volume knob affected the sound. Those knobs only affect the sound if I plug into the passive/active bass inputs.

    I guess what I'm asking for is a basic primer on what those 4 inputs are for and what they do and what the best way to use them is. It's a little embarrassing as I've had this amp since the mid-90s. I could simply plug in and use what sounds best, but I want to know what I'm doing at the same time.

    Happy new year!

    Attached Files:

  2. Effects loop is self explanatory. It's usually a parallel loop on Trace with a return blend level control. When you plug in there you should have output level control on the front.

    Pre out line in is a serial loop, again surprised you don't have output level control after that.

    The gain on front left controls input level to EQ section, no surprise it has no effect when you connect further along.
  3. lildrgn


    Jul 11, 2000
    Seattle, WA
    Thanks for the reply. Now, what is the difference between a serial and parallel loop?
  4. Series/serial means one after another, signal runs through the loop.

    Parallel means the loop effects a copy which is blended with the original.