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Alpine SPS-517 vs HELIX Blue B57X

 
Alpine SPS-517
In Stock 
$99.99
  • mineral-fortified polypropylene woofer cone with rubber surround
  • 1" silk dome tweeter
  • 2-75 watts RMS power range
Add to Cart
HELIX Blue B57X
In Stock 
$89.99
  • injection-molded polypropylene woofer cone with urethane surround
  • 1/2" Mylar dome tweeter
  • 5-40 watts RMS power range
Add to Cart

Product Features

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Condition New StockNew Stock
General Alpine SPS-517HELIX Blue B57X
Speaker Size
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5X75X7
Design
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2-way2-way
Tweeter Design
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1" Dome1/2" Dome
Tweeter Composition
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SilkMylar
Woofer Composition
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Poly-MicaInjected Polypropylene
Woofer Surround
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RubberRubber
Parts Warranty
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1 Year2 Years
Labor Warranty
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1 Year2 Years
Specifications Alpine SPS-517HELIX Blue B57X
Sensitivity
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88 dB at 1 watt
91 dB at 1 watt
Frequency Response
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73 - 22k Hz60 - 22k Hz
RMS Power Range (Watts)
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2-755-40
Peak Power Handling (Watts)
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230120
Impedance (Ohms)
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44
Top-mount Depth (Inches)
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2 5/162 1/4
Bottom-mount Depth (Inches)
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2 3/42 5/8
Cutout Diameter or Length (inches)
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00
  Owner's ManualOwner's Manual
 Hands-on ResearchHands-on Research
 
Alpine SPS-517
In Stock 
$99.99
Add to Cart
HELIX Blue B57X
In Stock 
$89.99
Add to Cart

Car Speakers: What to Look ForWith so many speakers to choose from, it's important to know what to look for. Keep these points in mind, you'll be able to choose the perfect speakers for your car audio system.

How tweeter design affects soundWhen you're shopping for speakers, don't forget the tweeter. Tweeters reproduce the upper frequencies in your music — they're what makes your highs sparkle and come to life — so they're vital for proper soundstaging and stereo separation.