Re: Factory amp vs Kenwood headunit amp?
A factory amp without a step-up power supply will have the same power as a HU. You can only get so much from 12 volts.
The difference is that factory amps usually have crossovers to protect the speakers. That limits how much midbass you can get from the OEM front stage, and it's what drove me to replace mine with aftermarket. When I ran my system directly from the HU I got an overall improvement in SQ but the power level (volume) was the same.
1999 Buick Park Ave Ultra
Head Unit: JVC KWHDR720
EQ: Audiocontrol EQL
Front Stage: Hybrid Audio Technologies Imagine 5.25 mids, Morel Maximo tweets
Sub Stage: Boston G3 10", 0.5 cu ft sealed
Amp: PPI Phantom 900.4
Rear Fill: Boston SE953 6X9's