About the Helix Blue B4X
German engineering meets car audio
German 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 drivers
You'll hear excellent high-frequency detail from the 1/2" Mylar dome tweeter, while the polypropylene woofer supplies solid midrange. 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.
Product highlights:
- 4" 2-way speakers (pair)
- injection-molded polypropylene woofer cone with urethane surround
- 1/2" Mylar dome tweeter
- power range: 5-25 watts RMS (75 watts peak power)
- frequency response: 100-22,000 Hz
- sensitivity: 89 dB
- top-mount depth: 1-13/16"
- grilles included
- warranty: 2 years
- MFR # B4X
What's in the box:
- Two 4" Coaxial speakers
- 2 Grilles
- 8 Speed clips
- Eight 1" Self-tapping screws
- 8 Mounting clips
- Two 10' Lengths of speaker wire (female quick-slides on one end and tinned wire on other)
- Instruction manual (English/ German)
- Template
Customer reviews for Helix Blue B4X
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Average review:
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More details on the Helix Blue B4X
Features & specs
General | ||
---|---|---|
Speaker Size | ||
Design | 2-way | |
Tweeter Design | 1/2" Dome | |
Impedance (Ohms) | 4 | |
Tweeter Composition | Mylar | |
Woofer Composition | Injected Polypropylene | |
Woofer Surround | Urethane Foam | |
Parts Warranty | 2 Years | |
Labor Warranty | 2 Years | |
Specifications | ||
Sensitivity (1W at 1 meter) | 89 | |
Sensitivity at 2.83 volts | N/A | |
Frequency Response | 100 - 22k Hz | |
Minimum RMS Wattage | 5 | |
Maximum RMS Wattage | 25 | |
Peak Power Handling (Watts) | 75 | |
Top-mount Depth (Inches) | 1 13/16 | |
Bottom-mount Depth (Inches) | 2 | |
Cutout Diameter or Length (inches) | 3 5/8 | |
Mounting Height (Inches) | 0.34 | |
Frame Width | 4.031 | |
Frame Length | 4.031 |
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 4X are shipped with a rubber magnet cover to protect the speaker. If the cover is removed the depth changes slightly:
- Top Mount Depth: 1.622"
- Bottom Mount Depth: 1.815"
Removable Mounting Tabs: Most 4" factory speakers use four mounting screws, however, in some vehicles, only two are used. In these cases, you can bend the unnecessary mounting tabs until they break off. The B 4X also includes the mounting clips used in some older European cars (in this case, all four mounting tabs are removed). Care should be taken handling the speaker after any tabs are removed because the broken edges may be sharp.
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Customer Q&A
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I removed factory installed speaker then I took a dremal tool and cut the old speaker out of it's bracket and used it to remount the helix B4X speakers just break off the mounting ears on speaker an it fits right in Sound is great
2004 Porsche Boxster from Laguna Beach, Ca