Am I supposed to only link to previous posts of mine?
(It was a long mini-meet impressions post so it is shorter if I post the excerpt here.)
I was happily surprised that the AMB mini3 (mini cubed) portable amp really beat my Icon Mobile and D12 from my iPhone 3gs with the UE RM:
"Big nice surprise = money will be spent on AMB’s mini3 (cubed) portable amp!! This amp (from iPhone 3gs and qusp LOD) made a VERY noticeable difference with my UE Reference Monitors…the soundstage opened up, the clarity increased, and the impact increased without feeling “pushed” at all. This was the “high performance” version with a gain of 5. The “extended runtime” version sounded almost as good (very small difference to clarity, almost negligible). AMB (Ti) told me to order from MisterX with a gain of 2. That’s exactly what I will be doing. The mini3 beats my Icon Mobile and my D12 easily with UERM from phone. But, now I know that I have to try rolling all opamps/buffers in the D12 to see if there is a configuration that beats what I have in there for my Grados. Looking at AMB’s site, the mini3 has an active ground- I wonder if it is like a less powerful/less costly version of StepDance??? (Anyone done comparisons with mini3 and StepDance?) I really recommend those with UE customs to try a mini3. I don’t know current pricing from MisterX but if around $150 I think it is a steal. (Think used ones are going for $110 or so.)"
I'll keep trying the UE RM out of amps and sources and share when I find obvious upgrades. I was glad this one isn't very expensive.