Soundstream SPM.654C is a midrange car speaker for an aftermarket vehicle audio installation. Match the specifications, connections and mounting requirements below to your system before ordering.

• Brand: Soundstream
• Manufacturer part number: SPM.654C

Features and installation details

Soundstream SPM.654C Midrange Loudspeaker with Super Compression Tweeter

High-Output Performance for Pro Audio Systems

Elevate your sound system with the Soundstream SPM.654C, a high-performance 6.5" midrange loudspeaker engineered for clarity, efficiency, and serious output. Designed for pro audio builds, this speaker combines a super compression tweeter with a powerful midrange driver to deliver crisp highs and rich mids—ideal for both car audio enthusiasts and professional sound installations.

Built with a ferrite magnet, steel basket, and a cloth surround, the SPM.654C is made for durability and consistent sound delivery. With an impressive MAX power rating of 450W and RMS power of 225W, it delivers aggressive output while maintaining sound quality.

Whether you're building a competition system or upgrading your setup, the SPM.654C delivers the punch and clarity your sound deserves.

Model: SPM.654C

Type: Midrange Loudspeaker with Super Compression Tweeter

Size: 6.5"

RMS Power: 225W

MAX Power: 450W

Frequency Response: 140Hz – 18kHz

Impedance: 4 Ohm

Sensitivity: 92 dB

Surround: Cloth

Frame: Steel Basket

Cone: Paper Cone

Magnet: Ferrite

Voice Coil Wire: EISV

Voice Coil Size: 1.5"

Magnet Weight: 26 oz

Mounting Depth: 3.07" (78mm)

Cut-out Diameter: 5.71" (145mm)

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