It's the teal coloured one
]]>Appreciate the comments Fielding. Capitol Studios have had more of a hands-on approach into tuning the UERR into what they believe to be the perfect tool for mixing and mastering. They have used the proprietary True Tone Drivers to extend the frequency range to 18 kHz.
I do not have access to measuring equipment at the moment but I have subjectively felt that the UERM represents a more raw version of the UERR in that it can appear bright at times whereas the UERR is more smooth. Both have very similar levels of resolvement but I believe the UERM is slightly better in the low-end. Staging is something which I feel that raw data does not show and is thus a perceptively subjective thing; the UERR is more intimate compared to the slightly mid laidback UERM in those regards.
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