Infinity REF-551A
New Infinity Reference amplifiers deliver pure power from a slim, compact chassis that’s designed to fit in more vehicles. Available in 4-channel, 5-channel, and mono models, Reference amps incorporate latest amplifier topology, include variable electronic crossovers and bass boost control for precise system tuning, and feature high- and low-level inputs for easy interface with virtually any system. They’re also compatible with several new vehicle technologies, including many advanced driver assistance systems, and Harman HALOsonic, a suite of acoustic solutions that can simulate engine sounds for a better driving experience in hybrids and electric cars, cancel road noise for better-sounding music, and more.
Alpine W12S4
Alpine understands the importance of bass for the car audio enthusiast while keeping it budget-friendly at the same time. The 2017 BASS subwoofers are engineered to be fun and loud in a budget friendly category by combining retro styling with enough efficiency to run on 250W RMS. An optimized magnet circuit allows more focused magnetism in the gap which results in improved efficiency. This means tighter bass control and more output!
REF-551A 550 Watts Max Power Mono Car Amplifier
- 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
W12S4 12" 750 Watts Max Power 4 ohm Car Subwoofer
- 12" 4-ohm subwoofer
- polypropylene and mica cone with poly-foam surround
- stamped steel frame
- power handling: 50-250 watts RMS
- peak power: 750 watts
- sensitivity: 87.9 dB
- frequency response: 22-200 Hz
- top-mount depth: 5-5/16"
- sealed box volume: 1.09 cu. ft.
- ported box volume: 1.91 cu. ft.
- Sold as Each
- UPC: 713783634484
- Weight: 19
- Authorized Internet Dealer
Warranty: 1 Year Onlinecarstereo.com warranty.
1 Year warranty from Onlinecarstereo.com implies that repairs must be returned to Onlinecarstereo.com, not the manufacturer. More information can be found in our help section under returns & warranties.
What's not covered : Misuse, abuse, defacement, physical damage of any kind, and improper installation / operation. Video and multimedia equipment with damaged or cracked screens.Subwoofers and speakers are not warrantied if the defect is due to physical damage.