DESCRIPTION

When you install a Power series amplifier, you get the biggest, beefiest power Rockford Fosgate has to offer. The Power 551S amplifier incorporates state-of-the-art circuitry and audio controls to ensure that your music sounds absolutely pristine... and rocks hard!

• 140 watts RMS x 2 at 4 ohms
• 275 watts RMS x 2 at 2 ohms
• 550 watts RMS x 1 bridged output at 4 ohms
• stereo or bridged mono output
• 4-ohm stable in bridged mode
• Tri-Way capable
• requires 4-gauge power and ground leads wiring and hardware not included with amplifier
• variable 50-250 Hz high-pass/low-pass crossover, 24 dB/ octave
• TOPAZ noise-killing differential inputs eliminate 80% of ground loop noise between the head unit and the amp
• NOMAD advanced protection circuitry monitors temperature, voltage, current and impedance, and provides "intelligent" shut-down protection without limiting system performance
• TRANSana circuit designs keep voltages low and signal paths simple in the pre-amp section, for minimum distortion and maximum musicality
• MEHSA provides more efficient transfer of heat from MOSFET output devices to the heatsink for cooler operation
• preamp outputs for convenient daisy-chaining of amplifiers
• Punch Bass boosts bass up to 18 dB at 45 Hz (wired remote control included)
• 12-1/8"W x 2-3/8"H x 9-7/8"D