Alpine 1200W Mono Marine Amplifier - M-A120M

Alpine M-A120M 1200W Mono Marine Amplifier

Built for Powerful Marine Bass
The Alpine M-A120M 1200W mono marine amplifier is designed to bring serious low-end performance to a streamlined boat audio system. Pair it with the built-in amplifier in the UTE-M701 or UTE-MN801 Marine Receiver to power your Alpine Marine speakers, then let the M-A120M focus on one 10-inch or 12-inch subwoofer at 600 watts RMS—or two compatible 4-ohm subwoofers for 1,200 watts RMS at 2 ohms. This setup helps keep your marine stereo system simple while delivering strong, clean bass where it matters most.

Adjustable Controls for Better Sound
Tuned bass can make all the difference on the water, and the M-A120M gives installers the tools needed to shape the sound to the subwoofer and enclosure. An adjustable low-pass filter helps keep higher frequencies out of the subwoofer, while the subsonic filter is designed to help protect against excessive movement below the enclosure’s usable range. A fully adjustable parametric EQ lets you choose the amount, width, and frequency of bass boost, and the gain-setting clip indicator supports clean, controlled output.

Reliable Performance for Life on the Water
Marine audio equipment needs to handle extended use, and the Alpine M-A120M is built with a large finned heat-sink design, best-in-class thermal handling, and an advanced thermal protection circuit. When temperatures rise, the amplifier can automatically manage output to help reduce heat and avoid an immediate shutdown, then restore full output once operating temperatures normalize. With all signal, power, and speaker connections arranged along one side, plus detachable ABYC-compliant terminals and dual mono speaker outputs, installation stays organized and efficient. High- and low-level inputs support factory or aftermarket sources, and the optional RUX-M-UNIV Bass Knob adds convenient subwoofer level control from the listening position.

Key Features

• Mono marine subwoofer amplifier
• 1,200W RMS at 2Ω or 1Ω
• 600W RMS at 4Ω
• 1-ohm stable design
• Dual mono subwoofer outputs
• Adjustable parametric bass EQ
• Adjustable low-pass and subsonic filters
• Gain-setting clip indicator
• Best-in-class thermal handling
• Advanced thermal protection circuit
• IPX6-rated waterproof chassis
• Salt, fog, and UV resistant
• Watertight top-panel control cover
• Included power and speaker terminal boots
• Compatible with RUX-M-UNIV Bass Knob

Features

• Bass Built to Be Felt
  Bass can disappear quickly in an open boat, especially once wind and engine noise enter the mix. The M-A120M delivers 1,200 watts RMS at both 2 and 1 ohm, giving installers flexibility to power one or two compatible subwoofers without giving up rated output. At 4 ohms, it supplies 600 watts RMS for systems that require a lighter load. The result is deep, controlled bass with the strength to add weight to every track and the output needed to be felt throughout the boat, whether cruising, anchored, or entertaining at the dock.
• Protected for Life on the Water
  The M-A120M is built for the conditions that come with life on the water. Its IPX6-rated waterproof chassis helps protect against powerful water spray, while salt, fog, and UV resistance support long-term durability in demanding marine environments. A watertight top-panel cover shields the tuning controls, while included power and speaker terminal boots add protection around the connected wiring. An included remote-port cover protects the connection when the optional RUX-M-UNIV Bass Knob is not installed.
• Complete Your Alipine Marine System
  The M-A120M makes it easy to add serious bass to a streamlined Alpine Marine system. Use the built-in amplifier in the UTE-M701 or UTE- MN801 Marine Receiver to power your Alpine Marine speakers, then dedicate the M-A120M to one 10-inch or 12- inch subwoofer at 600 watts RMS-or two compatible 4-ohm subwoofers for 1,200 watts RMS at 2 ohms. This approach keeps the system simple while delivering clear sound throughout the boat and deep, powerful bass where the music needs it most.
• Shape the Bass for Your Boat
  Powerful bass performs best when it is tuned to the subwoofer and enclosure. The M-A120M includes an adjustable low-pass filter to keep unwanted higher frequencies out of the subwoofer, along with a subsonic filter that helps protect against SUB LEVEL CONTROL excessive movement below the enclosure's usable range. A fully (MONO) adjustable parametric EQ lets installers select the amount, width, and frequency of bass boost. Together with the gain-setting clip indicator, these controls make it easier to create bass that is strong, clean, and matched to the boat.
• Keep the Bass Playing
  Long days on the water can place heavy demands on a high-powered subwoofer amplifier. The M-A120M combines a large finned heat-sink design with best-in-class thermal handling and an advanced thermal protection circuit. As temperatures rise, the amplifier can automatically manage output to reduce heat and help prevent an immediate shutdown. Once normal operating temperatures return, full output is automatically restored, supporting dependable bass performance through extended listening sessions from launch to sunset.
• Flexible, Installation-Ready Design
  All signal, power, and speaker connections are arranged along one side for easier access and a cleaner installation. Detachable, ABYC- compliant terminals simplify wiring, while dual mono speaker outputs support convenient connection of one subwoofer, two subwoofers, or a dual- voice-coil subwoofer when properly configured. High- and low-level inputs support factory or aftermarket sources, and the optional RUX-M-UNIV Bass Knob provides convenient subwoofer level adjustment from the listening position.