Question on subsonic filter (gr55gr33)

The RMC OPT-01 MKII is a 6-channel subsonic filter module that installs in the Roland GR-55 to eliminate the subsonic over-sensitivity in that unit.

The RMC OPT-01 is a 6-channel subsonic filter module that installs in the Roland GR-55 to eliminate the subsonic over-sensitivity in that unit.

What is it? A subsonic filter is mostly used for piezo elements. · How to install? You need to open up your GR-55 and insert it in-between the 13-pin DIN input ...

Filter/Buffer Butterworth subsonic filter effect for Roland GR-55 and VG-99. Plus two Auxiliary inputs and Master Effects Loop. Use non-GK equipped guitars ...

2018年3月6日 — Thinking of getting a internal subsonic filter for the GR-55....I also use a GR-33 but I don't seem to see any mention of this on the web ...

2019年3月30日 — Just bought a GR-55 to use with my Goden xTSA and Multiac. Overall tracking is OK (not as good as my GR-33), however, some patches- are ...