Not nearly enough to worry about if you buy decent speakers.
From what I remember its like 20-30 RMS. Some high end head units have more RMS at X4 than the Bose amp does.
As for front speakers. If you want component speakers, infinity kappa is a great buy.
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I love the Kappa's on my deck... They are a really good speaker for the price, K&N sale even better. Would definitely buy again and is why I recommended them too ; )
Overkill BBC Cam, YT 1.8 RR's, Rhodes Lifters, STGII Heads, GenV, Pacesetters, 3" Exh to Tips, TEP Trans. N*, ID 75# injectors/E85 coming soon