Articles in this category Is there an option in GS-201 Mark II for getting rid of the tape hiss? Yes. Click the EDIT button on the top right corner of the main screen, the first two parameters let you adjust the level of hiss and hum separately. Please refer to the PDF manual for more details. Can GS-201 Mark II synchronize to host tempo? Yes. When the sync option is on, some features are disabled, and only pick-up head is locked to tempo sync, the other heads play at proportional times. Please refer to the PDF manual for more details. GS-201 Mark II isn't accepting my license. If you own a license of GS-201 version 1 and you're trying to use that for activating GS-201 Mark II, that won't work.GS-201 Mark II is a new product and requires a new license. However, as an owner o...