Rockford Fosgate R165-S Subwoofer Grilles it uses the DC offset

it uses the DC offset voltage for its turn on power as well as primary amplification power

or as a 2-channel amplifier producing a whopping 200W x 2 into 4 ohms

P2 Loaded Enclosures feature similar tonal performance as P1 models

rear-firing design Finish Black carpet / laminate Grille Included Aluminum Bar Grille

Allows pair of amplifiers to operate as one large amplifier

Rockford Fosgate R165-S Subwoofer Grilles it uses the DC offsetThe Prime R165 S is a 6. 5" 2 way component system rated at 40 watts RMS for a new generation of factory replacement speakers. Kit includes two woofers with grilles, two tweeters with integrated crossovers and mounting hardware. Sold in pairs (2 each). The Prime Series Component System is a new generation of factory replacement speaker delivering authentic Rockford Fosgate sound. The R165 S is a dedicated 2 way component system utilizing a Mica