Call/email Steve McCormack or his tech (Chris, IIRC) at SMcAudio. Of course you will need two amps, but they can modify the amps for you IF it would serve your needs.
In fact monoblock operation is built-in to the Micro Power Amps. There are 4 internal jumpers labelled mono / stereo, and one of the RCA inputs is labelled for mono use. I have spoken with Grettich about this and have e-mailed him a .PDF copy of the owner's manual.
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