Rockford Fosgate Power Series T400-4 4-Channel Amplifier 501-1000 Constant Power technology: Delivers up

Constant Power technology: Delivers up to 25% more output per channel than rated

two plastic adapter brackets

12 dB/Octave: Shapes the bass range to mate with other speakers for a coherent kick in the cabin

Powerbass S-1204 is a 12-inch

The Hifonics BE35 1200

Rockford Fosgate Power Series T400-4 4-Channel Amplifier 501-1000 Constant Power technology: Delivers upThe Rockford Fosgate Power Series T400 4 4 Channel Amplifier is built for front rear fading stereo systems or when you need dedicated amplification for front speakers and rear subs. Its Dynamic Thermal Management and compact chassis allow installation in tight spaces, such as under a front seat. 4 channel MOSFET output stage: Delivers clean, stable power to four channels with efficient switching for in car listening reliability. 4 2 power ratings: 60W