inputs.text: great alpine type r 10 inch - one car alpine type x powered 1000 watt rms alpine mrx m100 thing smashes everything sight second car 10 inch type r powered mrp 500 thing type x amps efficient got ehem runnin 2 farad battery cap absolute zero dimming got cap 30 amazon wort every penny amp go drove 2 half hours bumping bass amp no warm touch not even close hot unlike old pdx 1600 amp third price pdx 1600 unprofessional opinion mrp 500 around better appearance point juice back buy amp not disappointed