GuyMe, I have not had time to open these up and pop in new opamps. I still want to try to find the time, but in the meantime I am looking for the next person who wants to review these two amps.
I would prefer to ship to someone who has done other reviews before, and who is willing to absorb the small shipping charges to send it to another reviewer when they are done reviewing the two amps (DAC). Skylab has already had them, and mrarroyo has declined at this time. I was thinking someone like oicdn, Jamato8, or Asr. Just PM me with your resume' and we'll see about sending them your way.
I cannot afford right now, having become disabled, to ship these out over-seas, sorry. I also don't have permission from miniature audio to let them leave the USA.
I stand by the fact that the Cute Beyond is a great amp with the stock opamps, and the Fubar III has a similar tone and timbre but lacks the detail and ambience of the Cute. I just have not been able to convince myself that the effort to roll opamps was worth it, since I wont be keeping it (loaner). Due to my poor health, I typically don't have the energy to do everything I want to do.