Difference between G1Four and G1XFour?

[mungewell]

Someone posed a question as to whether the PCB for these pedals are different, I highly doubt it... they may have different components fitted. The difference is likely a FW thing.

After uploading a pedal effect (PDL_VOL.ZD2) to a G1Four it is not listed.

Running the SysEx 'Identity Request' command on a G1Four I get.

$ amidi -p hw:2,0,0 -S 'F0 7e 00 06 01 F7' -r temp.bin -t 1 ; hexdump -C temp.bin | head

15 bytes read
00000000  f0 7e 00 06 02 52 6e 00  0c 00 32 2e 30 30 f7     |.~...Rn...2.00.|
0000000f

If someone runs the same command on a G1XFour, I have strong reason to believe the '0x0c' will change to '0x0d'.