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Helix Blue B57X

5"x7" 2-way car speakers

8 Reviews

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Item # 975B57X

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Overview

Our take on the Helix Blue B57X

Helix builds their low-profile Blue Series speakers to fit into more factory speaker locations while maintaining their high standards for sound quality. Helix earned its reputation by paying attention to the details, and these speakers really uphold the family name.

your description goes hereGerman engineering meets car audio

Helix builds their low-profile Blue Series speakers to fit into more factory speaker locations while maintaining their high standards for sound quality. Helix earned its reputation by paying attention to the details, and these speakers really uphold the family name.

The Blue Series B57X 5"x7" speakers make the most out of the power they're given, so they'll sound great paired up to an aftermarket car stereo. But they can handle up to 40 watts RMS of real-world power, so hook them up with an external amplifier if you really want to bring them to life. The added power gets you better bass and more accurate stereo separation, and your ears will thank you for the extra juice.

The drivers

You'll hear excellent high-frequency detail from the 1/2" Mylar dome tweeter, while the polypropylene woofer supplies solid, punchy bass. If you want to enjoy the little details in your music without breaking the bank, you'll want to check out these Helix speakers. Grilles are included.

After blowing one of my more expensive kicker speakers the Crutchfield rep suggested this brand. They were less expensive and I had never heard of them but their quality of build and sound surpassed my expectations. They are being powered by an Alpine head unit

Ruth, Columbus Ohio

What's in the Box:

  • Two 2-way speakers
  • 2 Foam gaskets
  • 2 Grilles
  • 2 Grille frames
  • 8 Speed clips
  • Eight 1" Self-tapping screws
  • Two 5' Lengths of speaker wire (female quick-slides on one end and tinned wire on other)
  • Template

Product Highlights:

  • 5"x7" 2-way speakers (pair)
  • injection-molded polypropylene woofer cone with urethane surround
  • 1/2" Mylar dome tweeter
  • power range: 5-40 watts RMS (120 watts peak power)
  • frequency response: 60-22,000 Hz
  • sensitivity: 91 dB
  • top-mount depth: 2-1/4"
  • grilles included
  • warranty: 2 years
  • Our 60-day money-back guarantee
Reviews

Helix Blue B57X Reviews

Average Customer Review(s):

(8 Reviews)
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Details

Hands-on research

Features and Specs

General
Speaker Size 5X7
Design 2-way
Tweeter Design 1/2" Dome
Tweeter Composition Mylar
Woofer Composition Injected Polypropylene
Woofer Surround Rubber
Parts Warranty 2 Years
Labor Warranty 2 Years
Specifications
Sensitivity (1W at 1 meter) 91
Sensitivity at 2.83 volts N/A
Frequency Response 60 - 22k Hz
Minimum RMS Wattage 5
Maximum RMS Wattage 40
Peak Power Handling (Watts) 120
Impedance (Ohms) 4
Top-mount Depth (Inches) 2 1/4
Bottom-mount Depth (Inches) 2 5/8
Cutout Diameter or Length (inches) 0

Product Research

Features

Woofer Materials: Each woofer cone is made of Injection-Molded Polypropylene. This process of cone molding assures a uniform cone thickness for superior linearity and clarity. It is also lighter weight and more rigid for decreased distortion and improved bass response.

Mylar Tweeters: Each speaker has a 1/2" Mylar dome tweeter for clean, accurate highs.

Magnet cover: The B 57X are shipped with a rubber magnet cover to protect the speaker. If the cover is removed the depth changes slightly:

  • Top Mount Depth: 2.175"
  • Bottom Mount Depth: 2.519"

Size Classification Note: Helix (Audiotec Fischer) calls this speaker a 5x7, but it also fits many 6x8 installation applications. Please refer to the Crutchfield Vehicle Selector to confirm fit in your vehicle.

Our Product Research Team

At Crutchfield, you'll get detailed, accurate information that's hard to find elsewhere. That's because we have our own in-house Product Research team. They verify what’s in the box, check the owner's manual, and record dimensions, features and specs. We stay on top of new products and technologies to help people make informed choices.

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