I have 3 MMats d200hc's and a MMats d2045hc, and that totals about 4000 watts, with an Optima battery and 3 stiffening caps, I have no problem at all with lights dimming or electrical problems.

I do however have lots of problems with the bass breaking $hit!!

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1999 Mercury Cougar
Wings West Body kit
Nitrous, Cams, Intake, Exhaust, Computer Chip
18" Speedy Hyper Fangs
6 12w6 JL audio subs
Eclipse 7002, Panasonic DVD
http://www.geocities.com/socal_neco/

2001 Mercury Cougar
Aerogear WideBody Kit, Aerogear Carbon Fiber Hood
3.0 Hybrid 251hp and 229tq at the front wheels
Eibach springs, Koni Stuts, Aussie Bar, ST200 R Strut bar, OMP front Strut bar, 19" RPM's 235/35-19 Nitto 555's
All Alpine System - IVA-C801, DHA-s680, NVE-N852A, TCS-V430A, TMX-R705, TME-M580 x2, PXA-H900, MRD-M500 x2, MRV-f540 x2, SPS-0829, SPX-F17t, SPX-17m x2, SWR-1021D x4, RUX-4280
http://www.geocities.com/socal_neco/jimmy.htm