Not that I know of at this time. But that would be really interesting and the best DAC model for comparison purposes. The two may share upgraded analog output line driver circuits. Plus power supplies, chassis, display, I/Os look identical. I do have both the Singularity 7 and upgraded DSP Master 7 that are identically configured including Amanero USB, etc. The S7 highs are crisp and clean where M7S highs warmer with a hint vagueness in close comparison. Both S7 and M7S retain their dynamic sound which I think is a major strength of the Master 7 series DACs. The R2R 7 may be a different animal all together. I know more owners of the R2R 7 than Singularity 7s. The S7s are rare as the R2R 7 was released only 6 mo. later. So send me your R2R 7!!