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Polk Audio db521 vs Helix Blue B5X

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Polk Audio db521

In Stock

(58)

$74.99
  • Polymer/mica composite woofer with butyl rubber surround
  • 3/4" pivoting liquid-cooled silk/polymer composite dome tweeter
  • power range: 4-45 watts RMS (135 watts peak power)
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Helix Blue B5X

In Stock

(14)

$79.99
  • injection-molded polypropylene woofer cone with urethane surround
  • 1/2" Mylar dome tweeter
  • 5-35 watts RMS power range
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Product Features

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Condition New StockNew Stock
General Polk Audio db521Helix Blue B5X
Speaker Size
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5 1/45 1/4
Design
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2-way2-way
Tweeter Design
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3/4" Dome1/2" Dome
Tweeter Composition
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Silk/Polymer compositeMylar
Woofer Composition
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Polymer/Mica compositeInjected Polypropylene
Woofer Surround
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Butyl rubberUrethane Foam
Parts Warranty
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1 Year2 Years
Labor Warranty
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1 Year2 Years
Specifications Polk Audio db521Helix Blue B5X
Sensitivity
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93 dB at 1 watt
90 dB at 1 watt
Frequency Response
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60 - 22k Hz70 - 22k Hz
RMS Power Range (Watts)
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4-455-35
Peak Power Handling (Watts)
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135100
Impedance (Ohms)
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44
Top-mount Depth (Inches)
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2 5/162
Bottom-mount Depth (Inches)
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N/A2 1/4
Cutout Diameter or Length (inches)
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4 3/44 3/4
  Owner's ManualOwner's Manual
 Hands-on ResearchHands-on Research
 
Polk Audio db521

In Stock

(58)

$74.99
Add to Cart
Helix Blue B5X

In Stock

(14)

$79.99
Add to Cart

Need help deciding?

Get an expert recommendation via via email or call an Advisor at 1.888.955.6000