How to set up EAR 890's as mono blocks

Hello, I am wondering how to set up the EAR 890's as mono blocks. I presently have the EAR 912 pre, 8 ohm Tyler Acoustic monitors and powered subs and one 890 with another on the way. Would greatly appreciate detailed advice on this project. Thanks.
If your speakers have 2 sets of binding posts, It would probably make more sense to do a vertical biamp. That way you can use your amps as stereo. You wouldn't have to change them in any way.