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Helix Esprit E6X

6-3/4" 2-way car speakers

3 Reviews | 1 question - 3 answers

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Item # 975E6X

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Our take on the Helix Esprit E6X

Esprit Series E6X 6-1/2

High fidelity with excellent imaging

Helix's German engineering pedigree really shows up in their Esprit Series speakers, which offer big technological bang for the buck. The E6X 6-3/4" speakers use an adjustable 3/4" silk dome tweeter that you can tilt and rotate to improve imaging in cars with less than optimal tweeter placement. Each speaker features a rigid 6-3/4" woven fiberglass cone that delivers tight midrange and bass reproduction, while the durable rubber surround helps this speaker provide exceptional sound for years to come.

Product Highlights:

  • 6-3/4" 2-way speakers (pair)
  • woven fiberglass woofer cone with rubber surround
  • 3/4" silk dome tweeter (rotates 360° and tilts up to 25°)
  • power range: 10-50 watts RMS (150 watts peak power)
  • frequency response: 55-22,000 Hz
  • sensitivity: 91 dB
  • top-mount depth: 2-9/16"
  • grilles included
  • warranty: 2 years
  • Our 60-day money-back guarantee

What's in the Box:

  • Two 2-way speakers
  • 2 Metal grilles
  • 2 Plastic grille frames
  • 8 Speed clips
  • Eight 1-3/8" Self-tapping screws
  • Two 12' Lengths of speaker wire (female quick-slides on one end and tinned wire on other)
  • Instruction manual (English/ German)
  • Template

Great tonality from these sixes. They have a great lively sound and are well balanced. I like them better than several options I tried beforehand costing both less and more.

Steve, Atlanta


Helix Esprit E6X Reviews

Average Customer Review(s):

(3 Reviews)

Great coaxial.

Steve from Atlanta on 12/5/2013

Crutchfield Customer Review (What's this?)

Great tonality from these sixes. They have a great lively sound and are well balanced. I like them better than several options I tried beforehand costing both less and more.

Pros: Detail without dryness or harsh treble. Great balance.


Great little speakers

Warren from Salt Lake City on 10/14/2012

I had these installed in a 2009 Toyota Matrix. They replaced the stock 6.5" speakers. I have a Rockford Fosgate R250 4channel pushing them. They sound great. They are pretty good at all frequencies. The deepest basses aren't there, but for 6.5" inches they will have people thinking you are really good at hiding a 8" or even a 10" subwoofer.

Pros: Quality materials used. Sound great. Won"t break the bank.

Cons: None I can think of after a week of using them.

Clear Sound in my Prius

Jay from Findlay, OH on 8/18/2012

2012 Toyota Prius
Crutchfield Customer Review (What's this?)

Will fit in the rear doors of a 2012 Toyota Prius. There is ample room for them in the door using SAK036, 1/4" speaker adapters. UPDATED 2/4/13: The bass completely disappears when the temperature drops to around 15 degrees F.

Pros: Nice clear sound at higher volumes

Cons: None


Hands-on research

Features and Specs

Speaker Size
Design 2-way
Tweeter Design 3/4" Dome
Impedance (Ohms) 4
Tweeter Composition Silk
Woofer Composition Woven Fiberglass
Woofer Surround Rubber
Parts Warranty 2 Years
Labor Warranty 2 Years
Sensitivity (1W at 1 meter) 91
Sensitivity at 2.83 volts N/A
Frequency Response 55 - 22k Hz
Minimum RMS Wattage 10
Maximum RMS Wattage 50
Peak Power Handling (Watts) 150
Top-mount Depth (Inches) 2 9/16
Bottom-mount Depth (Inches) 2 3/4
Cutout Diameter or Length (inches) 5 5/8

Product Research


Woofer Materials: Each woofer cone is made of woven fiberglass and has a durable rubber surround. This woven fiberglass material is very light and extremely stiff, minimizing cone flex and resulting in faster transients and finer detail.

Tweeters: Each speaker has a 3/4" silk dome tweeter with a neodymium motor structure. The tweeters also rotate and can be tilted (up to approximately 25°) so you can direct them toward the listening positions.

Magnet cover: The E 6X are shipped with a rubber magnet cover to protect the speaker. If the cover is removed the depth changes slightly:

  • Top Mount Depth: 2.467"
  • Bottom Mount Depth: 2.627"

Size Classification Note: Crutchfield has traditionally referred to this size speaker as a 6-3/4", while some manufacturers, including Helix (Audiotec Fischer), call it a 6-1/2". 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.

Q & A

Customer Q&A

1 question already asked

Thank you. I appreciate your reply! [ MarkB  Jan 25, 2015 ]
Sorry, sold vehicle that the speakers are in. [ ROBERT  Jan 25, 2015 ]
Sorry, I don't the exact diameter. They fit in my 2011 tacoma with the provided adapters. That are great speakers! [ James  Jan 25, 2015 ]