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The Alpine SPS-507 is a set of 5” x 7”, 2-way coaxial speakers featuring an ultra-high power intake of 230W.

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Pros

very little distortion in the bass, even turned all the way up

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very detailed rendition of mids and highs, everything is clear even at lower volumes

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can swivel the tweeter slightly to shape the soundscape better

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sound great without an amp, can work directly off of the head unit

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Cons

low end support is not as deep as it could be, ideally would have subwoofer support

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some tinniness is audible in the highs

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takes some time to find the proper crossover point with other equipment, can't go by documentation

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The Alpine SPS-507 is a set of 5” x 7”, 2-way coaxial speakers featuring an ultra-high power intake of 230W. Along with a Poly-Mica woofer and a 1” dome tweeter, each speaker also includes an ultra-low distortion Strontium magnet that reduces unnecessary noise, while enhancing clarity and bass. Note also that the unit’s tweeter is swivel-enabled and in fact able to be swiveled up to 10 degrees. And both speakers feature a shallow-mounting design, allowing for easy installations in a wide range of door panels. The only notable drawback to the Alpine SPS-507 is its poor frequency range, which unfortunately does not go under 73Hz.

Features
  • 2-Way Coaxial (5” x 7”) Speakers
  • Poly-Mica Cone Woofers
  • Wide-Range Silk Dome Tweeters (Swivel)
  • OEM Amplifier or Alpine Head-Unit (Compatibility)
Specifications
  • Tweeter: 1” Wide Range Silk Dome
  • Woofer: Poly-Mica Cone
  • Power Capacity (Peak): 230W
  • Frequency Response: 73Hz - 22kHz
  • Impedence: 3.6 Ohms
  • Sensitivity: 88dB /W(1m)
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