I had hoped to run my Carvin wireless IEM from my amp's DI out - it works but the level is much too low. I'm looking for the minimal DI->line-level (e.g. monitor return) amp/convertor. I've looked at small mixers but haven't found any small, inexpensive mixers with XLR out suitable for sending directly to the IEM input. The Rolls MB35 USB DI/Level Matcher is the closest I've found, and it's priced comparable to the small mixers I've been looking at. Open to other suggestions.