I currently run an Allen & Heath board with an Alesis HD24 recorder. The A&H's buss outs are set for +4 operation, as the HD24 calls for. I'm looking at picking up another recording device, maybe a Fostex R8 or Tascam Syncaset, that I believe operates at -10. What I'm wondering is if there's any solution to interfacing the +4 console with the -10 recorder, other than an expensive unit like the Ebtech Line Level Shifter, or opening the board up and messing with jumpers (it's too large for me to do that every time I felt like changing things around). Is it possible to build a DIY unit for much less? Thanks a lot.