1. S

    Big Heil AMT in compact, bi-amped 2-way set up with electronic crossover–help needed!

    Hi there and good evening! I am a starter in DIY speaker building (and a first time thread poster here) and look for some advice on my first project! Maybe some of you experienced guys can help me on this – reading through this forum, I can see there are people here 100 times more experienced...
  2. C

    Crossover calculations (e.g., ESS Heil AMT)

    I have some difficulties in figuring out how to calculate the frequency cut off and the attenuation of the two cross over attached. Those are from ESS AMT Monitors. The figure 1 (filter 1) is copied from an ESS schematic. The figure 2 (filter 2) is what I drew from my ESS AMT 1E monitor from...