Factory Stereo WITHOUT Mark Levinson; Factory Amplifier; AudioControl DM-810 Sound Processor; Alpine MRV Amplifiers; Dash Speakers 3.5" JL Audio C2-350x; Front Dr Speakers 6.5" Alpine R-S65.2; Front Dr tweeters Alpine SPR-10TW; Rear Dr Speakers Alpine R-S65C; Center Dash 4" Speaker Alpine S-S40; Subwoofer Rockford Fosgate Punch P300-12; and recently installed the Rockford Fosgate Punch Pro PPS4-8 Midrange speaker mounted in the rear deck replacing the factory 8" Sub.
Before I installed the Rockford Fosgate PPS4-8 midrange speaker my sound system lacked depths from about 1.5 kHz down to 200 Hz. After installing this single 8" midrange speaker (in a Mono configuration) it filled the gap, Crisp Clean Rich Bass. I have been experimenting with the AudioControl DM-810's crossover, phasing, and equalizer settings and found this speaker can handle 7.7 kHz down to 48 HZ. Listening to classic rock, hard rock, and jazz the drums (particularly the snare drums), piano, electric/ acoustic guitars, and vocals now have depth. This speaker is rated at 4 ohms but acts more like a 3-ohm speaker, needs less power to drive it. If your sound system sounds too tingy I highly recommend this speaker to fill that void. Also, it can act as a High range sub if mounting space is a factor.