Infinity Marine M7005A
Enjoy a complimentary $75 Installation credit on all Online Orders. Limit one per customer. Terms and Conditions apply.
Free Shipping on all orders nation wide
Free Return on all orders
Need Help?
Infinity Marine M7005A 5-Channel Marine Amplifier
The Infinity Marine M7005A is a versatile, all-in-one system solution designed for high-performance audio on the water. It utilizes a hybrid Class AB+D design, using clean Class AB power for your four full-range speakers and high-efficiency Class D power for a dedicated subwoofer channel. This provides a "ground-pounding" 500 Watts RMS for bass, which is significantly more powerful than the sub channels found on most standard 5-channel amps.
Key Features
Total System Solution
This single chassis can power your entire boat’s audio system. It typically drives two pairs of 6.5" or 8" speakers while providing a massive power reserve for a 10" or 12" subwoofer. If you need even more volume for your front stage, the amp is bridgeable to 3-channel mode, delivering up to 140 Watts RMS x 2 to your main speakers.
Weather-Ready Engineering
Built for salt, sun, and spray, the M7005A features conformal-coated circuit boards to prevent corrosion and stainless steel hardware that won't rust. The sleek white design isn't just for aesthetics; it helps reflect heat in open-cabin environments.
Precision Tuning & Control
The amp includes a wired remote bass control (RBC), allowing you to adjust your subwoofer levels from the helm without touching the amp. It also features balanced differential inputs to eliminate engine noise and independent crossovers for the front, rear, and sub channels to perfectly dial in your soundstage.
Universal Compatibility
With both preamp and speaker-level inputs (bare wire-to-RCA adapters included), this amplifier can connect to a high-end marine head unit or a factory-installed radio. Its signal-sensing turn-on feature even allows it to power up automatically when it detects an audio signal, simplifying the installation.
Technical Specifications
| Category | Specification |
| Power Output (4Ω) | 50W x 4 + 320W x 1 RMS |
| Power Output (2Ω) | 75W x 4 + 500W x 1 RMS |
| Bridged Power (4Ω) | 140W x 2 + 500W x 1 (at 2Ω) RMS |
| Amplifier Class | Hybrid Class AB (Speakers) / Class D (Sub) |
| Signal-to-Noise Ratio | >80 dB |
| Fuse Rating | 30A x 3 |
| Dimensions | 14-3/16"W x 2-3/16"H x 7-1/8"D |
What Others Are Saying
Eddie was great - SDCS installed a new head unit in my 2019 4Runner. He was honest in his opinions regarding the options I was considering. Pricing was also good - he was able to reuse some of my existing installation kit so I saved a bit of $$.Installation was clean and fast and he took the time to walk through the features before I left. Highly recommend!!
I had a great time at this shop! The staff really knows their stuff and took the time to explain the different options without pressure. Installation was quick, clean and professional. Everything looks factory and sounds amazing. The prices were fair and customer service was above and beyond. I highly recommend this place if you're looking for quality car audio and excellent service.
Those guys are really professional! I had a new Alpine floating head unit installed in my 2008 Mercedes, and it feels like a brand-new car. The installation was super clean. At first, the sound wasn’t the same as the factory stereo, but Kevin tuned it to be just as good—if not better—without adding any new amps. They even used my factory GPS antenna so I don’t have extra wires hanging out. On top of that, they matched the online price. Big thanks to Kevin and Eddie—highly recommended!
Kevin was awesome, he took his time and explained everything to me. I went in initially for a dash cam install and then decided to get a sub and amp installed as well. Both turned out great and will be returning if I need more work done.
Came In not knowing what to expect when suddenly my stereo stopped working. Spoke with Kevin in the front and after a VERY fast diagnosing they discovered my wiring was incorrect. After only about 45 minutes total being in the store I was on my way to the beach with a working stereo again! Thank you so much SDCARSTEREO
Highly recommend Kevin and the team at San Diego Car Stereo for any issues with aftermarket stereos. I bought a car with an aftermarket stereo and AC unit that wasn’t working properly—specifically, the heat wasn’t functioning due to an improper setup. I had several people look at it with no luck, and even the dealership basically refused to help because it was an aftermarket install. I came to Kevin and his team over the holidays feeling pretty defeated, but he was confident he could get the heat working before I headed back to a Colorado winter. Sure enough, he got it done.
FAQ
Do products purchased from San Diego Car Stereo come with a warranty?
Yes, all products come with a 1-year manufacturer warranty unless otherwise stated. This covers any defects excluding physical damage.
Are these products brand new?
Yes, every product we sell is 100% brand new, unused, and comes in original manufacturer packaging unless clearly marked otherwise.
Do you offer installation services?
Yes, we offer professional installation services at both of our San Diego Car Stereo locations. Our expert technicians have over 50 years of combined experience to install all of your car, marine, or offroad audio needs. Stop by or give us a call to schedule an appointment to get a quote in person.