I can't imagine the AX-7e would have too little power for your needs. Your Totems are 4 Ohms nominal, and the AX-7e doubles-down at 4 Ohms. Also, remember using the balanced outputs of the CX-7e will net you +6 dB over the single-ended inputs.
I don't think you'll regret the AX-7e / CX-7e combo.
I don't think you'll regret the AX-7e / CX-7e combo.