"pianoguyy" - I understand "your situation", and you are absolutely right. But I just wondering if line 6 provided this functionality. I think it's not so complicated to be made. With something like: http://www.tc-helicon.com/products/guitar-headphone-cable/ good in-ear headphones and pod you'll have good IEMs without to buy additional hardware like headphones preamps or "sure" wireless "gadgets". I don't know the HD500X in details and don't know pfsmith0's idea for FX Send loop is good. I mean is this routing can be saved and used with any presets (tones), or must be setted for presets one by one. Thanks again!