Pure Copper Oxygen Free Speaker Wire

SKU SW-23144

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Cable quality can have a huge impact on your speaker setup. Poor quality cable means poor quality sound. This 14 AWG unterminated speaker wire features oxygen-free pure copper conductors, which means you get great sound quality for a great price.


When deciding what kind of cable to use for your speaker setup, one of the first things to consider is the cable’s AWG. The American Wire Gauge (AWG) refers to the thickness of the copper wire in the cable. The lower the gauge number, the thicker the wire. Most speaker wire ranges from 12 AWG to 16 AWG. It’s important to use the correct gauge for your speaker setup. For most average speakers, 16 AWG wire will work well for you in lengths of less than 50 feet. But to ensure the best quality sound, it's better to get a thicker cable.

Pure Copper

Gauge isn’t the only thing to consider when you buy speaker cable. Mixing different alloys in with the copper makes it cheaper, but they can also affect how conductive the wire is. Less conductive wire means poor sound quality. Adding in different alloys can also lead to cable breaks when going around tight corners. At Sewell Direct we want you to have great sound, so our 14 gauge cable is 99.99%, pure copper.

What’s So Great about Oxygen-Free Cable?

When dealing with copper, oxygen is bad news. Poor quality wire sometimes has microscopic pockets of oxygen trapped in the copper. Over time, these pockets can become larger and cause oxidation, which can make the copper less conductive, and may even destroy the cable.

Since our 14 gauge cable is oxygen free, you never have to worry about that. In fact, we guarantee this cable for the life of your installation.

Marked For Easy Installation

Ideally, the cables running to paired speakers should be the same length. We’ve made that process easy for you by marking our cable at every foot, so it’s easy to measure and cut at the length you need.


16 awg Specifications

Mfg. Part Number

  • SW-23144  50 ft. 
  • SW-23144-100 100 ft.
  • SW-23144-250 250 ft.
  • SW-9419 1000 ft. 


  • PureRun™ by Sewell


  • 16/2: 16 AWG / 2 Conductor
  • High Strand - 26 strands per wire
  • Pure Copper Oxygen Free Conductors
  • Dual PVC Jacket (One outer and one around each conductor)


  • Bulk Packaging

14 awg Specifications

Mfg. Part Number

  • SW-30015-50 50 ft. 
  • SW-30015-100 100 ft.
  • SW-30015-250 250 ft. 
  • SW-30015-500 500 ft. 
  • SW-30016 1000 ft.


  • PureRun™ by Sewell

Cable Information

  • In-wall installation (CM Rated)
  • 14 AWG
  • 42 strands per conductor
  • Pure Copper Oxygen Free Conductors .25mm
  • Dual PVC Jacket (One outer and one around each conductor)
  • Outer Jacket Color: White

12 awg Specifications

Mfg. Part Number

  • SW-30012-100 100 ft.
  • SW-30012-200 200 ft. 


  • Silverback™ by Sewell


  • CL3 Rated for in wall use
  • 12 AWG
  • Oxygen Free Manufacturing
  • 259 Strand Count
  • Flexible
  • Premium Jacket for Durability
  • Enhanced Loud
  • Pure Copper

Customer Reviews

Based on 34 reviews
Good product at a good price

I installed some new speakers in out of the way places around the house. I needed a fair amount of speaker wire for the job. I was able to run the wire under the floor thru the crawl space. In order to go thru this much trouble I didn't want to use cheap wire. I got the 18 gauge oxygen free wire from Sewell and it is a product I highly recommend. I got a 100' spool and at a very reasonable price. Each wire is coated separately and each is a different color which allows making the proper connections a breeze. In addition, both wires are then sealed together which, again, makes running the wires in the crawl space very easy. If you have decent speakers and you want decent sound, get good wire. I am very pleased with the quality of sound I am getting using the pure copper O2 free wire from Sewell. If you're not sure about the different classifications of wire, do what I did, check things out online.


Very well made speaker wire.


Pure Copper Oxygen Free Speaker Wire

Great Product

After putting together a vintage component audio system, I needed some “real” speaker wire (instead of hardware store lamp cord) to finish it off. This wire is not only helps squeeze every bit of signal sent to my classic JBL monitors, it’s also fairly rugged. A minor complaint might be the white-only jacket color of the 14 gauge — it sure stands out against almost any color wall or floor.

Wire strands

Not what I expected, a lot different wire than Media bridge. They're 14 AWG is 105 strands.
Would like to return the sewell wire?? Do I need a RMA number? To return

We're sorry the cable didn't work out for you. Our support tech will be in touch to set up a return.

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