Boston Acoustics

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Competition 2-way car component system

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Boston Acoustics SPG555.

  • 6½" copolymer cone woofer with neodymium magnet 1½-inch voice coil
  • RadiaVent® cooling and Twinstage™ heat sink for increased power handling
  • Cast aluminum woofer basket
  • 1" Type-M1 anodized alloy dome tweeter with full AMD™
  • Separable and dockable crossovers
  • VariMount™ adapter rings allow for fast installation
  • Axis-, flush-, and angle-mount tweeter mounting kit


Nominal Impedance
3 ohm
Mounting Depth
2-3/8" (60mm)
Frequency Response (±3dB in car)
System Type
Speaker Size
Rated RMS Power Handling
125 watts
Mounting Cutout Diameter
5 1/4” (133mm)
Mounting Depth with Spacer
2-1/16" (52mm)

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