I just ordered a Sadowsky Preamp/DI to enable me to run a boosted signal to our soundboard (as well as my stage system). I currently already play a Sadowsky 5 with active electronics. I hope I'm not overdoing the gain but I suppose I can just turn it down? The cable to the sound board is at least 75' so a boosted signal will be helpful. But I don't want to overdo the gain to my amplifier's (Hartke 7000) preamp. The Hartke's built in XLR output is junk in my opinion. Do you think I made a good choice?