You mean the R5 sounds better than the IFI Nano BL? On the other hand, compared to the IFI Micro BL ... do you think the R5 competes in sound quality?
Headphone Reviews and Discussion - Head-Fi.org
Cat Music
Medikill
@Cat Music Yes, micro does have a more fun sig compared to the r5 though. However, the flat sig is preferred by some. Also the micro can supply a lot more power (if it's needed).
