Thought I'd take the discussion out of the sponsor forums and bring it to the portable amps forums. ALO Rx LINK The new Rx is a re-imagining of the tried and true original portable amp offered from ALO Audio. It's tuned to drive IEMs only, but with IEMs it sounds sublime to these ears. It's a very transparent amp to the source with perhaps just a smidge of warmth added. ALO goes on quite a bit in its marketing about the voltage supply for the new Rx and to my ears they are bang on with what they set out to achieve. To be honest I'm not exactly sure what the magic sauce is but there is amazing clarity and detail retrieval with the Rx and the impact and speed of music playing through the Rx has my JH Angie IEMs singing. I think more people should be aware of this little gem. It's been compared to the output of the Hugo with IEMs which is some good praise in my books. If you own one or would like to just post some questions jump in.