Hi @JT0513 not sure anyone answered you, welcome to the community.
There is a good thread about EQ for Mac here EQ for both iOS & Mac
You can also go single ended into your JOT R with a Loki + but that is only 4 adjustments. I do this and I am able to tame the treble on overly bright/harsh recordings, and for fun I give the bass a couple db for reggae
Enjoy your new SR1a!