Alpine SPU-690 M-Series 6x9-Inch 3-Way Coaxial Car Speakers – 100W RMS/750W Peak Power

Upgrade your car audio system with the Alpine SPU-690 M-Series 6x9-inch 3-way coaxial speakers. Designed for music lovers who want impressive sound quality at an affordable price, these speakers combine Alpine's innovative audio technology with powerful bass, clear vocals and detailed high frequencies.

Featuring Alpine's patented High Amplitude Multi-Roll (HAMR) Surround, a lightweight polypropylene woofer cone and a large magnet structure, the SPU-690 delivers dynamic sound performance without requiring a high-powered audio system.

Whether you're replacing your factory speakers or upgrading your existing car audio setup, the Alpine M-Series offers an excellent balance of performance, reliability and value.

Key Features

• 750W Peak Power Handling: Designed to deliver dynamic and powerful audio performance.
• 100W RMS Power Handling: Provides reliable sound output for everyday listening.
• 6x9-Inch 3-Way Coaxial Design: Combines multiple driver elements to reproduce a wide range of audio frequencies.
• Alpine HAMR Surround Technology: Allows increased cone movement for punchy bass and controlled sound reproduction.
• Lightweight Polypropylene Woofer Cone: Offers efficient performance and excellent audio response.
• Large Magnet Structure: Helps improve driver force and bass output.
• PEI Dome Tweeters: Designed to reproduce clear and detailed high frequencies.
• High Sensitivity: Rated at 88dB for efficient sound reproduction.
• M-Series Speaker Grilles Included: Provides a clean appearance while helping protect the speakers from everyday damage.
• Affordable Audio Upgrade: Ideal for drivers looking to improve their factory sound system without the expense of a high-powered setup.

Advanced Alpine Audio Technology

HAMR Surround Technology

Alpine's patented High Amplitude Multi-Roll (HAMR) surround allows greater cone excursion while maintaining control over speaker movement. This design supports powerful sound output, improved bass response and reduced distortion during demanding playback.

Large Magnet Structure

The large strontium magnet structure works alongside the speaker's voice coil and HAMR surround to enhance driver force and cone movement, helping deliver louder, punchier bass.

Polypropylene Woofer Cone

The lightweight polypropylene (PP) woofer cone provides efficient sound reproduction and excellent audio response. Its design makes the SPU-690 a practical choice for drivers seeking improved sound quality without requiring a complex, high-power audio system.

Included M-Series Speaker Grilles

The supplied speaker grilles provide a neat, finished appearance for exposed speaker installations while helping protect the drivers from everyday wear and potential damage.

Technical Specifications

What's Included?

• Alpine SPU-690 M-Series 6x9-inch 3-way coaxial speakers
• Matching M-Series speaker grilles