my sub weighs 45 lbs + 25 lbs box + 15lbs amp = 85lbs extra no noticeable mpg loss.

it would be the same as having a 10 year old kid in the back

 

Don't forget depending on how much current the amp draws the stress on the alternator along with the weight lol.

 

1400rms sub and 300rms highs

no dimming, no hesitations, no problems

stock alt works fine, keeps everything charged at 14.2- 14.4 volts all day even at 3/4 volume

 

I'm running two Optima Yellow tops in the car (one for the car, one for the system in the pic) and I got no issues...no dimming, etc...

 

14.2 to 14.4 volt's is really good... That's what I was getting at idling well the system was playing it's was dropping down to around 11 to 11.4 volts and sometimes if I put it up real high it would drop to around 10.6 volts and the deck would just reset.

 

I was running on stock battery I had dimming other then that nothing. I originally bought two optima yellow tops from costco and a 200 amp isolator locally ( to run one in the front and back) ... When I got to taking out the battery I realized it was a reverse terminal ... This was when I first bought my blue coupe lol... I just returned the battery and ran on stock battery

 

You're look at about 13 cubes once sub and port displacement is accounted for

Get a better 12 like an fi btl

 

lol yeah it'll be loud and i don't think it should be that heavy..