AUTOBACS M620B - 6.5 Inch 2-Way Slim Fit Marine Speakers - Black

AUTOBACS M620B - 6.5 Inch 2-Way Slim Fit Marine Speakers - Black

Outstanding 6.5-inch 2-way coaxial marine speakers featuring polypropylene mica injected driver, weather-resistant Santoprene surround, polyimide dome tweeter, 120W peak power, and ultra-slim 24.9mm mounting depth for waterproof indoor and outdoor use.

Product Overview

The AUTOBACS M620B speakers provide outstanding audio quality delivering an impressive listening experience through waterproof design and components suitable for both indoor and outdoor use. These 6.5-inch 2-way coaxial marine speakers are adaptable to a range of settings, with ability to fit into spaces with restricted mounting depth enhancing versatility and ease of use. The system features polypropylene mica injected driver material providing excellent rigidity and damping characteristics for accurate sound reproduction. The long-life weather-resistant Santoprene surround delivers reliable performance in marine environments exposed to UV radiation, salt spray, moisture, and temperature extremes. The 25mm AVS voice coil ensures efficient power handling and thermal management. The polyimide dome tweeter provides extended high-frequency response with excellent dispersion characteristics. Performance specifications include 120W peak power handling with 30W RMS continuous power capacity, 100-20,000Hz frequency response covering full audio spectrum, 88dB sensitivity at 1W/1m for efficient operation, and 4 Ohm nominal impedance for compatibility with most marine amplifiers and receivers. The ultra-slim 24.9mm mounting depth enables installation in tight spaces where standard marine speakers cannot fit, requiring 132mm mounting hole diameter for straightforward installation in boats, marine vessels, outdoor entertainment areas, or weather-exposed automotive applications.

Key Features

Waterproof Marine Construction - Professional waterproof design with weather-resistant components suitable for both indoor and outdoor use including boats, marine vessels, poolside entertainment areas, outdoor patios, or weather-exposed automotive applications, delivering reliable performance when exposed to moisture, humidity, salt spray, UV radiation, and temperature extremes typical in marine environments.

Outstanding Audio Quality - Premium 6.5-inch 2-way coaxial system delivering impressive listening experience through polypropylene mica injected driver providing excellent rigidity and damping characteristics for accurate bass and midrange reproduction, combined with polyimide dome tweeter ensuring extended high-frequency response with 100-20,000Hz frequency coverage across full audio spectrum.

Ultra-Slim Mounting Depth - Industry-leading 24.9mm mounting depth enabling installation in spaces with restricted mounting clearance where standard marine speakers cannot fit, providing versatility for tight bulkhead installations, shallow door panels, overhead mounting locations, or limited-depth entertainment console applications without compromising audio performance or power handling capabilities.

Weather-Resistant Santoprene Surround - Long-life Santoprene surround material engineered specifically for marine environments, providing superior resistance to UV degradation, salt water corrosion, moisture absorption, and temperature cycling compared to standard rubber or foam surrounds, ensuring reliable long-term performance and maintaining flexible suspension characteristics throughout demanding outdoor exposure.

Efficient Power Handling - Professional 120W peak power handling with 30W RMS continuous power capacity through 25mm AVS voice coil providing efficient thermal management and power transfer, delivering 88dB sensitivity at 1W/1m for loud output from modest amplifier power, operating at 4 Ohm nominal impedance for compatibility with most marine amplifiers and receivers.

Easy Installation - Straightforward mounting requiring 132mm diameter hole with ultra-slim 24.9mm depth accommodating restricted clearance installations, compatible with standard marine speaker mounting configurations for professional or DIY installation in boats, marine vessels, outdoor entertainment systems, or weather-exposed automotive applications without specialized tools or modifications.

Technical Specifications

System Design

• System: 2-Way Coaxial
• Driver Size: 6.5 inches (165mm)

Driver Construction

• Driver Material: Polypropylene Mica Injected
• Surround Type: Long Life Weather Resistant Santoprene
• Voice Coil: 25mm AVS
• Tweeter: Polyimide Dome

Power Handling

• Peak Power Handling: 120W
• RMS Power Handling: 30W

Acoustic Performance

• Frequency Response: 100-20,000Hz
• Sensitivity @ 1W/1m: 88dB
• Nominal Impedance: 4 Ohm

Installation Specifications

• Mounting Depth: 24.9mm
• Mounting Hole: 132mm

Frequently Asked Questions

What makes these speakers suitable for marine environments?

The M620B features waterproof construction with weather-resistant Santoprene surround that resists UV degradation, salt water corrosion, and moisture damage. The polypropylene mica injected driver and polyimide dome tweeter maintain performance when exposed to humidity, temperature extremes, and salt spray typical in marine environments including boats, yachts, jet skis, or outdoor entertainment areas near water.

Can these speakers be used in automotive applications?

Yes, the M620B's waterproof construction makes them excellent for weather-exposed automotive applications including convertibles, off-road vehicles, or any installation where speakers may be exposed to rain, humidity, or washing. The ultra-slim 24.9mm mounting depth enables installation in tight door panels or locations where standard automotive speakers with deeper mounting depths cannot fit.

What amplifier power is recommended for these speakers?

The M620B handles 30W RMS continuous power, so amplifiers rated between 20-40W RMS per channel at 4 Ohms provide optimal performance without risk of speaker damage. The 88dB sensitivity enables loud output even from modest amplifier power, making them suitable for both powered head units (15-25W) or dedicated marine amplifiers for maximum performance.

How does the ultra-slim mounting depth benefit installation?

The 24.9mm mounting depth is significantly shallower than standard marine speakers (typically 50-70mm), enabling installation in restricted-clearance locations including thin bulkheads, overhead panels, shallow door cards, or entertainment consoles where deeper speakers would contact obstructions. This provides installation flexibility in boats with limited mounting space or challenging installation locations.

What is polypropylene mica injection and why is it used?

Polypropylene mica injection combines polypropylene polymer with mica mineral particles, creating driver material with excellent rigidity-to-weight ratio, superior damping characteristics reducing distortion, and resistance to moisture absorption. This combination delivers accurate bass response, maintains cone shape stability during high-excursion operation, and provides long-term reliability in humid marine environments where paper cone speakers would deteriorate.