Hey Mike -
Typically you can always increase load on an amp without major issues - the fall-out is that as impedance (load) increases, output power decreases. An easy (accurate for the girls I go with - but not precise) calculation is to divide the output power of an amp by 2 when the load doubles. For example:
100w/ch at 4ohms
50w/ch at 8ohms
There is, of course, diminishing gains where:
100w/ch at 4ohms
125w/ch at 2ohms
The SESG2 amp (according to the manufacturer - MTX Tech Support) is rated at 100w rms/ch with a .5ohm load. Increasing speaker load by replacing the stock 1ohm speakers with 4ohm speakers is ok - it would merely decrease rated amp output. So ... for replacing the 2 of the three 1ohm stock speakers (fairings, lowers) with 4ohm speakers ... but keeping the 1ohm (crap) "tweeters" ... the toal load per channel is calculated by the following:
1/
in1 + 1/
n2 +1/
n3 +1/
nx = Y (where n is speaker impedance for each speaker wired in parallel per output channel)
Then take the inverse of the Y value.
Or ... you could just go to this link:
http://www.bcae1.com/spkrmlti.htmBe careful - wiring in series changes EVERTHING. As does a SERIES/PARALLEL install.
The link is damn good for showing the differences and what the fall-out from each is on an amp. And it even has a handy-dandy calculator for the formula above.
