It may be easier to make an adapter (has a female end on one side and a male end on the other) that way you can try the speakers in other cabs without having to remove them. I did try the MC90 8ohm using the same method when I had it in the Mark V... Not my cup of coffee as I prefer a bit of cream to go with the TC-50. (pun is intended referring to the Cream backs I have in my RA100 Combo). The 16 ohm speaker will sound a bit weak compared to an 8 ohm.