Studio LCR: module combinations specs

What are the specs if I combine a S4-LCRMT with one or two S4-LCR65W

If you combine a S4-LCRMT and a single S4-LCR65W the specs will be: 

Power handling: 200W.

Peak SPL: 112dB.

Sensitivity: 86dB.

Impedance: 8Ohm

If you combine a S4-LCRMT and two S4-LCR65W the specs will be :

Power handling: 400W.

Peak SPL: 118dB.

Sensitivity: 89dB.

Impedance: 4Ohm