What is the outer diameter of the insulation?

When separated, a single strand is .165 in. in diameter and together it measures .165 in. by .345 in.

It says 99% copper but looks like less conductive and cheaper copper clad aluminum. . Which is it?

I assumed it was as advertised: 99% copper. There are different grades of copper, so conductivity may well vary, but like you, I was looking for a step up from copper clad aluminum. Don't know for sure if I got it, but the cable is thick and my system sounds good with it.

Probably china. The wire feels very high quality. It’s soft and flexible, and I got fuller richer sound out my home theater after I rewired with this.

So are we getting 50ft of each =100ft or 100ft of each =200ft?

It's One 100ft spool of speaker wire.

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InstallGear 12 Gauge Speaker Wire (30ft) - Brown 12 AWG

Product ID: 58407534

Details

Brand
InstallGear
Color
Brown
Gauge
12
Material
Copper
Number of Cable Strands
Multi Strand

⚡Oxygen-free copper for max conductivity

🔊12 AWG for powerful audio

🛡️Durable flexible PVC jacket

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Description

🔊 Elevate your audio game with InstallGear’s pro-grade speaker wire!

CRYSTAL CLEAR AUDIO EVERY TIME - 12 gauge OFC copper minimizes signal loss for pristine sound quality.
BUILT TO LAST BUILT TO PERFORM - Flexible, wear-resistant PVC jacket ensures durability indoors and outdoors.
EFFORTLESS SETUP SEAMLESS SOUND - Flexible wire design makes installation quick and hassle-free.
POWER YOUR SOUND SYSTEM LIKE A PRO - Multi-strand copper conductor delivers consistent, powerful audio performance.
TRUSTED BY THOUSANDS OF AUDIOPHILES - Top-rated with 4.7 stars and thousands of happy users—don’t get left behind.

InstallGear 12 Gauge Speaker Wire (30ft) features oxygen-free copper for superior conductivity and minimal signal loss, wrapped in a durable, flexible PVC jacket for easy installation and long-lasting performance. Ideal for home theaters and car audio setups, this 12 AWG wire delivers powerful, crystal-clear sound with reliable protection against wear and tear.

Specifications

ASIN	B079VJXN1Z
Best Sellers Rank	#8,654 in Electronics ( See Top 100 in Electronics ) #53 in Speaker Cables
Brand Name	InstallGear
Color	Brown
Customer Reviews	4.7 4.7 out of 5 stars (2,997)
Gauge	12
Global Trade Identification Number	00850075307142
Manufacturer	InstallGear
Material Type	Copper
Model	IG1230OFC
Number Of Wires	1
Number of Items	1
Part Number	IG1230OFC
Strands	Multi Strand
UPC	753968370868
Unit Count	30 Feet

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Our prices include the product cost, international shipping, import duties, customs clearance, and local delivery charges. We handle all customs and import procedures, ensuring there are no hidden fees upon delivery. PRO members receive additional benefits including free shipping.

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53507CFA

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In stock

Sold byAmazon SenegalDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

Buyer Protection · Full refund if your order doesn't arrive as described.

Desertcart purchases this item on your behalf and handles shipping, customs, and support to Senegal.

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TrustScore 4.5 | 7,300+ reviews

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