








"Fit perfectly and worked exactly as expected — support was excellent."
Infinity Marine M6008A
Upgrade Your Vehicle With Confidence. This Is Built to Fit, Perform, and Last
Infinity Marine M6008A 8-Channel Marine Amplifier
The Infinity Marine M6008A is a versatile and high-powered Class D amplifier designed specifically for the harsh environments of boating. It delivers a solid 75 watts RMS per channel, providing enough power to ensure your music is heard clearly across the deck. With its 8-channel design, it can act as a total system solution, powering multiple sets of speakers and subwoofers from a single, compact chassis.
Key Features
Massive Multi-Channel Versatility
The M6008A is incredibly flexible. You can run it as an 8-channel amp for a large speaker array, or bridge it to 4-channel mode to send 250 watts RMS to four high-performance speakers or subwoofers. It also supports 3-channel, 5-channel, or 7-channel configurations, allowing you to mix full-range speakers and subs to fit your boat's specific needs.
Marine-Grade Reliability
Engineered for life on the water, this amplifier features conformal-coated circuit boards and stainless steel hardware to resist corrosion from salt and moisture. Its high-efficiency Class D design ensures maximum output with minimal current draw, preventing unnecessary strain on your boat's electrical system and keeping the unit cool during long days of use.
Precision Tuning & Integration
The amplifier includes variable high- and low-pass filters (32-320 Hz) on all channels, allowing for precise system tuning. It also features balanced differential inputs to reject electrical interference and engine noise. With both preamp and speaker-level inputs (adapters included), it integrates seamlessly with both aftermarket head units and factory-installed boat radios.
Expandable System Design
For larger vessels requiring even more power, the Infinity Marine M6008A includes full-range preamp outputs. This allows you to easily chain an additional amplifier, such as a dedicated subwoofer amp, without needing to run extra RCA cables back to the head unit or using signal splitters.
Technical Specifications
| Category | Specification |
| Power Output (RMS) | 75W x 8 @ 4Ω / 125W x 8 @ 2Ω |
| Bridged Power (RMS) | 250W x 4 @ 4Ω |
| Amplifier Class | High-Efficiency Class D |
| Frequency Response | 10Hz – 40kHz |
| Crossover Filters | Variable High/Low-Pass (32–320 Hz) |
| Signal-to-Noise Ratio | 80 dB |
| Fuse Rating | 105A (35A x 3) |
| Dimensions (WxHxD) | 14.13" x 2.21" x 7.03" |
- Ships within 1–3 business days from our warehouse
- Tracking included with every order
- Free 30-day returns if it doesn’t work for your setup
- 2-year manufacturer warranty
- Authorized dealer guarantee
- Real installer-backed support before and after purchase

Why This Upgrade Makes Daily Driving Better
Ease of Use & Safety
Expandable by Design
FITMENT & INSTALLATION MADE SIMPLE
WHAT VEHICLES IT WORKS WITH
We verify compatibility before you buy, no guesswork.
DIY FRIENDLY IF:
- You're comfortable with basic tools
- You follow provided instructions
PROFESSIONAL INSTALL RECOMMENDED IF:
- Your vehicle requires dash kits or wiring adapters
- You want a turnkey experience
INSTALLATION CREDIT & SUPPORT:
- $75 Installation Credit when purchased online
- Speak to real installers before you buy
- Bring it into one of our locations for install
Why Buying This Here Is Safer Than Anywhere Else
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Verified Vehicle Fit
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Installer Support
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Authorized Products
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Easy Returns
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Physical stores & real installers
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FREQUENTLY ASKED QUESTIONS
FREQUENTLY ASKED QUESTIONS
How do I know this stereo or speaker will fit my car?
Select your year, make, and model using the Vehicle Fit Guide at the top of the page. You’ll only see products that are compatible with your exact vehicle setup.
What happens if I order something that doesn’t fit?
You can return or exchange it within 30 days. We’ll help you identify the correct part for your vehicle so you don’t have to guess again.
Are these products brand new and covered by warranty?
Yes — all products are brand new, authentic, and sold as an authorized dealer, which means they include a full manufacturer warranty.
Can you install this for me, or do I need to do it myself?
You can do either. Install it yourself, or use your $75 installation credit at our shop and have it professionally installed by our team.
What if I don’t know what to choose for my car?
Tell us your vehicle and what you want to improve (sound, bass, CarPlay, etc.). We’ll recommend the exact products that fit your car and your budget.
