Does this wire have any in-wall ratings?

This is not house wire,this is low voltage(12volt) definitely don't put this in your house or you'll have major problems

How many strands per conductor?

Not sure but it is a great wire. Pure Cooper.

what gauge speaker wire should I use 140 Watts 12 ft long

This 14 Gauge will do the trick. It's pure copper so there will be like no resistance just pure flow. I have alpine s type 80 watts (160 watts) front and back I even have my sub hooked up to this wire and it sounds awesome

Can this be used as a power wire for a amp in a car?

Definitely wouldn't recommend it wire gauge thinner than 10 gauge 12 gauge is more for speaker wiring 8 gauge and up would be more suitable for amplifier power wires depending on the amplifier just go for the largest gauge wire that fits in the amplifier

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InstallGear 16 Gauge Speaker Wire OFC Oxygen-Free Copper, 100-feet

InstallGear 16 Gauge Speaker Wire OFC Oxygen-Free Copper, 100-feet

Product ID: 401747073

Details

Brand
InstallGear
Colour
Red/Black
Gauge
16.0
Material
Copper
Number of Cable Strands
16

🔌16 AWG thick gauge for minimal resistance

🧵Rugged, flexible PVC jacket for durability

🛡️Oxygen-Free Copper for superior conductivity

R248

Duties & taxes included

In stock

Sold byAmazon South AfricaDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

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Description

🎧 Elevate your sound game with InstallGear’s pro-grade speaker wire!

GENEROUS 100 FOOT LENGTH - Perfect for professional setups or home theaters without compromise
DURABLE YET FLEXIBLE JACKET - Soft-touch PVC casing offers easy routing and impact resistance
PREMIUM OXYGEN FREE COPPER CORE - Ensures stable, high-current flow without expansion or contraction
CRYSTAL CLEAR AUDIO TRANSMISSION - 16 AWG thick wire reduces signal loss for pristine sound quality
EFFORTLESS POLARITY IDENTIFICATION - Dual-color jacket prevents costly wiring mistakes

InstallGear’s 16 Gauge 100-foot speaker wire features oxygen-free copper for superior conductivity and minimal signal loss. Its rugged yet flexible PVC jacket ensures durability and easy installation, while the dual-color design guarantees quick polarity identification—ideal for audiophiles and professionals seeking flawless sound performance.

Specifications

ASIN	B0848L385Y
Best Sellers Rank	#25,707 in Musical Instruments ( See Top 100 in Musical Instruments ) #16 in Stage & Studio Speaker Cables
Brand Name	InstallGear
Colour	Red/Black
Customer Reviews	4.4 4.4 out of 5 stars (845)
Gauge	16.0
Global Trade Identification Number	00810031588916
Manufacturer	InstallGear
Material Type	Copper
Model Number	IG16100OFC
Number Of Wires	2
Number of Items	1
Number of Packs	1
Part Number	IG16100OFC
Strands	16
UPC	850004617182
Unit Count	1.0 Count

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