Infinity REF-551A Monoblock 550 Watts RMS Reference Series Amplifier

Infinity's Reference 551a mono amp will add some bass muscle to your music without breaking a sweat, and it'll look good doing it. This potent powerhouse will send up to 550 watts RMS to your subwoofer, and its Class D design ensures the amp's high output will put minimal strain your vehicle's electrical system.

Speaker-level inputs allow this amplifier to work in almost any system, even if you're hanging on to your factory radio. You can use the low-pass filter and variable bass boost to maximize the performance of your subwoofer and enclosure, while a phase switch ensures that the bass will blend well with your full-range speakers.

Features & Specifications:

• Infinity Reference Series REF-551A Monoblock Amplifier
• RMS Power Rating:
• 4 ohms: 370 watts x 1 chan.
• 2 ohms: 550 watts x 1 chan.
• 1 ohm: ------------N/A------------
• Total power output: 1300 watts
• Pulse Width Modulated MOSFET power supply
• LED power (green) and protect (red) indicators
• Soft start turn-on
• Mono channel operation
• High and Low level speaker inputs
• 3-way protection circuitry (thermal, overload, and speaker short protection)
• Dual speaker terminals simplify the hookup of multiple speakers
• Heavy duty aluminum alloy heat-sink for extreme heat dissipation
• Slim and compact chassis provides more installation options
• HALOsonic mixing input
• Frequency Response: 32 - 320 Hz
• Signal to Noise Ration: >80 dB
• Total Harmonic Distortion (THD): <1.0%
• Phase: 0 - 180°
• Variable Bass Boost: 0 to +9 dB
• Fuse Rating: 30 A x 2
• Weight: 7LB

Manual