This may be up Dave Plowman's street...
If I buy a cheapo 4 x 7 watts car stereo, and plan to use only two speakers, do I benefit power-wise by ganging 2 outputs together per side? Obviously with the F / R balance set at midway. In other words do I then get 2 x 14 watts?
It's so cheap that the 7w output is probably PMPO too!
Cheers, Ken.