Here's another indication of how quiet the R-26 XLR preamp is, compared to other multitrack models
http://www.avisoft.com/recordertests.htmPreamp Equivalent input noise (EIN), unweighted
Tascam DR-680 -125 dBu
Marantz PMD-661 -124 dBu
Roland R-26 XLR -122 dBu <------
Tascam DR-100 MkII -117 dBu
Tascam DR-100 -111 dBu
Tascam DR-2d -106 dBu
Tascam DR-40 -104 dBu
Avisost measured the EIN of the 3.5mm mic input to be -115 dBu, so the XLR input is considerably quieter.
The DR-100 MkII is a lot quieter than the original DR-100.
None of this matters if your mics have a relatively high self noise, or if you're recording in a loud and noisy setting.
Flintstone