I'm wondering if it would be ok as far as matching up ohms, I think the JC-120 is 2 60-watt amps powering 2 8ohm speakers normally, and the Kone is 4ohms, will this be OK?
If it's not intended to work with a less resistance you should not do so, your amplifier risk of burning out. You can do the opposit : having a 16Ohms speaker instead of a 8, 4, etc.....