Musicians Roadhouse

Ok so I am new here and I guess many guys asked that question already but I can't find an answer. So is it possible to use the Haze 40 with another cabinet like the Marshall MHZ112B Haze but for the purpose of using it like a 2x12?
It is written in the manual that you shouldn't use more than one speakers, but I have read someone said that With his Haze40 he ran 8 ohm jack to 1 16 ohm speaker then from that he ran to another 16 ohm speaker breaking it down to a 8 ohm load 8=16/2 so he converted my Haze40 112 into a 212. Does anyone tried that?

Eddy Rigotti wrote: is it possible to use the Haze 40 with another cabinet like the Marshall MHZ112B Haze but for the purpose of using it like a 2x12?
It is written in the manual that you shouldn't use more than one speakers,

Where is it written not to use more than 1 speaker?

From the manual,

2. Speaker Outputs
WARNING! Never use the amplifier without a load (speaker
cabinet/s) attached!
There are 3 speaker outputs available on the rear panel. They
are labelled according to the intended impedances:
1x16 Ohm: connect any 16 Ohms guitar cabinet to this jack.
1x8 Ohm or 2x16 Ohm: connect any 8 Ohms guitar cabinet,

As long as you have the correct speaker impedance you should be good to go with any combination.