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Product Comparison
Polk Audio db521 vs Helix Blue B5X

Polk Audio db521

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Helix Blue B5X

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Condition New StockNew Stock
General Polk Audio db521Helix Blue B5X
Speaker Size
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5 1/4
Design
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2-way2-way
Tweeter Design
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3/4" Dome1/2" Dome
Impedance (Ohms)
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44
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 (1W at 1 meter)
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9390
Sensitivity at 2.83 volts
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N/AN/A
Frequency Response
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60 - 22k Hz70 - 22k Hz
Minimum RMS Wattage 45
Maximum RMS Wattage 4535
Peak Power Handling (Watts)
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135100
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

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