I just got a new amp that has a passive or unbuffered effects loop - I guess it is really just a pre-out and power-in jacks. My current rig has a Fulltone choral flange>EH Deluxe MM> Boss EQ pedal. I am getting a large volume drop and loss of highs when the above mentioned pedals are plugged in the loop. I could put the flange and delay in front of the amp but really like having the boss eq in the loop as a solo boost. My question is: Do i need to buy a dumbelator style loob\p box to make my loop work correctly or could having a combination of buffered pedals in the loop solve my problems? The amp is currently at our rehersal space so I am looking for some ideas....also we have gigs tonight and tomorrow and would really like to use the new amp!