I'm truly astonished that Roland continue to use 1/4" jacks as input sockets for microphones on much of their gear, with no provision for XLR input. This is 1970s technology; all musicians these days use pro mics (SM58s etc) with XLR connectors. I know lots of musicians who buy one of your Harmony pedals, or a nice piano with vocal harmony f/x, then scrabble about with XLR-to-jack adaptors to get the mic signal into the box (or half of it !). For the pedals they then have to use another adaptor to convert it back to provide an XLR connection to plug into their mixer MIC input (since most modern mixers dedicate jack inputs only to line-level signals). Come on Roland, the days of people using £5 Hi-Z cassette-deck mics with jack-plugs on captive leads is long gone ! Drag yourselves into the 1980s !!
VP-7 jack / xlr combined input.. output on jacks yes, possibly as it's now at line level.
BOSS VE-20 another jack / XLR combi, but this has XLR outs (2), and a line / phone jack.
BR multi-trackers all have jack/XLR (except the Micro BR)
Fantom G Mic input is XLR.
V-Synth Mic input XLR
Both VP 550, and 770 have XLR mic inputs
Juno Stage. Mic in has XLR
Juno Gi Mic has an XLR
Juno G - Mic has jacks only (was beginning to wonder if I was wasting my time)
Juno Di - Another, with just jacks. It's all going down hill..
Roland sell microphones too, with XLR connectors, just like that 'pro' SM58.
I think on the whole, they try and fit an XLR if they can.
I'm sure you will have a list of Roland products without XLR's that perhaps should have.
I also think the mic inputs will be low-Z too (again will happily be told otherwise).
