Its been enough for me. Although my bass head days have since gone, and now into performance,so i dont really crank up the system too much anymore, but when i do, the stock 90 amp alt works fine. Unless your amps draw a lot of current, and you constantly have the volume turned up, the stock alt should be fine. If you dont have one, i *highly* recomend using an Optima Yellow top battery. They rock.

13.5 @108 MPH-2.2 60ft(stupid FWD!)
S16G @ 18 PSI/FMIC/Running on MegaSquirt II (Now with sequential
fuel injection)
My webpage: http://eclipsed4evr.home.comcast.net
-1998 Mitsubishi Eclipse RS-T- "Toy"
-1992 Plymouth Laser Turbo AWD(SOLD)
-2000 Honda CR-V(daily)