After comparing their size difference, the M-Cube appear to be larger, or have a larger cabinet than the Min 10. From the looks of the photo of the M-Cube, the driver appears to be larger too.
Edit: I found the specs and it appears that the driver is only one inch.
Here are the specs:
Enclosure type DML in infinite baffle
mid/tweeter 25mm exciter
Crossover frequencies -
Frequency response +/-3dB 280Hz - 20kHz
Sensitivity SPL/M @ 2.83V 85
Nominal impedance 8 Ohms
Minimum impedance 3.2 Ohms
Recommended amplifier power 30 - 150W
Dimensions (H x W x D) mm 90 x 90 x 90
Height on feet/spikes (mm) -
Net weight (kg) 1.02
As you can see, some info was left blank.
With a frequency response of 280hz - 20 kHz, I won't be running out and purchasing any soon.