ALPINE STM-6666 Coaxial Speaker 16.5CM 5.5 2-WAY 100W.

( Brand: Alpine ), ( Manufacturer Part Number: STM-6666 ), ( Type: Coaxial ), ( Size: 6.5 In ), ( Speaker Design: 2 Way ), ( Driver: Midrange ), ( Impedance: 4 ), ( Rms Power: 100 W ), ( Country Of Origin: China )

Review ALPINE 16.5cm 5.5 Inch 2-way Coaxial Speaker Speakers 100w. Used fits MARINE

Introducing the Alpine STM-6666 16.5cm (6.5 inch) 2-way coaxial marine speakers, a high-performance audio solution designed specifically for marine environments. These speakers are an excellent choice for boat owners seeking to enhance their on-board audio system with clear, powerful sound.

The Alpine STM-6666 marine speakers are rated at 100 watts per pair, making them capable of delivering impressive audio output. They employ a 2-way coaxial design, which means that each speaker features both a woofer and a tweeter in a single compact enclosure. This design ensures accurate sound reproduction and a wide frequency response, delivering both rich bass and crisp, clear highs.

The woofer cone is made of a durable, marine-grade polypropylene material, which is resistant to the damaging effects of saltwater, UV rays, and other harsh marine conditions. The speaker's sturdy rubber surround ensures reliable performance even in demanding environments. The tweeter is a sealed-magnet neodymium type, which offers excellent power handling and high efficiency.

These Alpine marine speakers are designed to meet the rigorous IPX7 waterproof standard, meaning they can be submerged in up to 1 meter of water for up to 30 minutes without sustaining any damage. This makes them ideal for use in any marine application, from small fishing boats to large cruise ships.

The Alpine STM-6666 marine speakers come with a number of convenient features. They are designed to be easily installed using standard 6.5 inch speaker mounts and come with mounting hardware and a grille included in the box. The speakers also have removable, rust-resistant grilles, allowing for a customizable look.

In summary, the Alpine STM-6666 16.5cm (6.5 inch) 100 watt 2-way coaxial marine speakers are a high-performance, durable, and versatile audio solution designed for marine use. With their impressive power handling, wide frequency response, and rugged construction, these speakers will provide clear, powerful sound in even the most challenging marine environments.

Alpine STM-6666 16.5cm 5.5 2-way coaxial marine speakers are designed to deliver high-quality sound in marine environments. Let's discuss the pros and cons of buying these speakers to help you make an informed decision.

1. Marine-grade construction: The speakers are built to withstand the harsh marine environment, making them a reliable choice for boats and other watercraft. They feature a UV-resistant polypropylene cone and a stainless steel grille, ensuring durability and longevity.

2. Power handling: With a peak power rating of 100 watts and a RMS power rating of 50 watts, these speakers offer sufficient power to deliver clear and strong audio.

3. Frequency response: The speakers have a wide frequency response range of 35 Hz to 35 kHz, which ensures that they can reproduce a broad range of sounds, making your music sound more dynamic and full-bodied.

4. Waterproof: The speakers are fully waterproof, making them ideal for use in marine environments where they may be exposed to water, rain, or humidity.

1. Size: These speakers are relatively large, measuring 16.5cm (6.5 inches) in diameter. This may limit their installation options, especially in smaller boats or other vessels.

2. Mounting hardware not included: The speakers do not come with mounting hardware, which may require an additional purchase.

3. Cost: Compared to some other marine speakers in the market, these Alpine speakers are on the higher end of the price spectrum.

In conclusion, the Alpine STM-6666 16.5cm 5.5 2-way coaxial marine speakers are a great choice for those looking for high-quality, durable, and reliable marine speakers. Their marine-grade construction, power handling capabilities, and wide frequency response range make them a solid investment for those who want to enhance their boat's audio system. However, their relatively large size, lack of mounting hardware, and higher cost are important considerations to keep in mind.

If you're looking for high-quality, reliable marine speakers that can deliver clear and strong audio, the Alpine STM-6666 16.5cm 5.5 2-way coaxial marine speakers are a great choice. Their marine-grade construction, power handling capabilities, and wide frequency response range make them a solid investment for those who want to enhance their boat's audio system. However, if you're on a tight budget or have limited installation space, there may be other marine speaker options that better suit your needs. It's important to consider all the pros and cons before making a final decision.

Details:

Both speakers sound good but one has a rattle when you shake it. No idea what that is about.

part #: stm6666 prices

• $263.95-$959.95

specifications speasaele:

• for models: Marine
• brand: Alpine
• mpn: Stm-6666
• type: Coaxial
• size: 6.5 In
• speaker design: 2 Way
• driver: Midrange
• impedance: 4
• rms power: 100 W
• country of origin: China

seller speasaele:

• rating: 100.0%
• city: Wisconsin Dells, Wisconsin
• # reviews: 929

general speasaele:

• In-Car Technology, GPS Security > In-Car Entertainment > Speakers
• condition: Used

offer speasaele:

• started: January 26, 2026
• availability: In Stock
• sold: 0
• quantity: 1
• options: Ship-to-home

payments speasaele:

• credit card: Mastercard
• wallet: Paypal
• other

returns speasaele:

• policy: No Returns

shipping speasaele:

• class: Standard
• cost: $12.00
• service: USPS Ground Advantage
• type: Fixed
• carrier: USPS
• transit: 3-8 Days

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