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AudioQuest FLX-14/4 14-Gauge 4-Conductor In-Wall Speaker Cable

UL-approved for in-wall use; direct-burial rated (250 feet)

Item #: 703144250

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Four-conductor design means one less wire to run

Cross section

This four-conductor in-wall speaker cable from AudioQuest sports an advanced, high-performance design for impressively detailed sound. It features 19 precisely arranged, tightly packed strands in each conductor for excellent signal transfer and low distortion. Plus, twisted pair construction minimizes radio frequency and electromagnetic interference for crisp, clear, noise-free sound.

Handy extras for easy installation

AudioQuest includes sequential footage markers to simplify measuring. Directional arrows tell you which way the signal should flow through the cable for the best sound. Plus, with a 4-conductor cable, you can run just one cable from your amplifier or receiver to a pair of speakers or in-wall volume control, so you'll have just one cable to pull, secure, and identify.

Keep your home and family safe with in-wall-rated speaker wire

When you're running wire inside your walls, it's important that you use speaker cable that's approved for in-wall runs. This cable's CL3 certification means it passed safety tests administered by the Underwriters Laboratory (UL). The UL looks at heat generated from current flowing through wire, how quickly the cable will catch and spread fire when exposed to flame, and the wire's susceptibility to damage from external stresses. Also, be sure to check your local building and fire codes, and buy wire accordingly.

Product Highlights:

  • 14-gauge, 4-conductor cable (14/4)
  • UL-rated for in-wall installation
  • rated for direct burial
  • high-purity copper for high-integrity signal transfer
  • Concentric Pack stranding ensures high conductivity and low distortion
  • twisted pair construction combats interference
  • sequential footage markers printed on jacket for accurate cable measurements during installation
  • directional arrows tell you which way the signal should flow for the best sound
  • warranty: 5 years
  • Our 60-day money-back guarantee

AudioQuest FLX-14/4 14-Gauge 4-Conductor In-Wall Speaker Cable Reviews

Average Customer Review:

3 Reviews

In wall installation

Written by: Michael from California, MD on March 30, 2015

Crutchfield Customer Review (What's this?)

I was very impressed with the quality of this wire. It slides easily through the studs in the wall. I used electrical staples to hold the wires in place. This was installed before the walls were installed in new construction. I'm completely happy with the product.

Pros: Great quality wire. Easy to run long lengths. Fire safety rated!


Red RT Pos, BLK RT Neg, WHT LT Pos, GRN LT Neg

Written by: John from Florida on October 2, 2009

Crutchfield Customer Review (What's this?)

This is easy wire to pull through wall, cabinets, etc. The title of the review is to show one of the conventional wire naming schemes for four conductor speaker wire. (I did not find this on this website)

The only problem with "four lead" is that eventually it has to be divided up to get to the separate speakers. For a clean install heat shrink tubing or cable wrap can make it look nice. Of course, this is not important if the cable is out of sight.

The free included speaker cable labels are great. Tip: circle the label around the wire loosely without touching the encircled cable and touch the two adhesive tips of the label first and then press the label together as you press towards the cable not vice versa. This keeps the labels from not meeting properly.



Audioquest Wire

Written by: Bill from Holualoa,Hawaii on April 25, 2009

Crutchfield Customer Review (What's this?)

Audioquest has a great product and Crutchfield deliverd!.



Hands-on research

What's in the box?

Download owner's manual

  • 250' Spool of 4-conductor 14 gauge speaker wire

Product Research


Overview: The FLX-DB14/4 in-wall speaker cable has four 14 gauge conductors to supply wiring for two speakers, or bi-wiring for one speaker. Using Semi-Solid packing, the individual copper strands within the bundle don't change position, resulting in reduced distortion. The long grain structure in the low distortion, oxygen free, high-conductivity copper AudioQuest uses results in a natural sound, uncolored by the cable. The Star-Quad geometry lowers cable inductance, reducing susceptibility to external noise sources.

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