Question 1

Can this wire be buried directly in soil?

Accepted Answer

For my in ground install I bought the cable they use for low voltage outdoor landscape lighting (bought it at Home Depot). It is inexpensive, carries the signal fantastically, and is designed for direct burial. Unless properly insulated, aluminum doesn't do well when it is in direct contact with the soil. FYI - I am an electrical contractor with 35 years experience so I know a little about direct burial cable. Hope that helps.

Question 2

is true as thicker the copper better the signal ir what is thanks

Accepted Answer

Hello William,Thank you for your question! Generally, the thicker gauge will transfer signal better than the thinner gauge. Hope this helps! Please let me know if you have any further questions and I will be happy to assist you.

Question 3

is this wire flat enough to run under wall to wall carpet?

Accepted Answer

Wire run directly under carpet is unsafe, even for speaker wires. Wire run under carpeting gets stepped on crushed and ground by the fine grit that passes through the carpet, and the soft vinyl insulation fails under the carpet where heat builds up until the carpet ignites. It's a major source of electrical fires and the primary reason why the electrical code now requires new installations to use arc fault circuit breakers that detect the failing insulation and shut off the power. When speaker wires are run under the carpet the fault power is limited only by the output power of the amplifier. Any audio amplifier you'd buy 14AWG speaker wire for can deliver far more than enough power for failing insulation to build up heat and ignite a fire under a carpet. Amplifiers don't pass the high frequency current noise of a developing fault to the power line so an arc fault circuit interrupter won't shut off the power.
The safe solutions are all boring, unpleasant, or difficult to implement. You can route the wires a different direction to follow the perimeter of a room, even around a door frame to avoid an opening. You can use one of the products that protects wires under a carpet together with under-carpet padding to keep a flat carpet surface. You can also route UL listed cable (NB: this product isn't) through walls, above ceilings and under floors to emerge where you need it, although a renter may need the owner's consent to do something like that. 
You may find that concealing wires is easier when the wire is smaller. This is a CCA wire, which has same resistance as aluminum wire. Pound for pound Aluminum is one of the best conductors, but it isn't a dense metal. In the same wire size aluminum or CCA is only half as good a conductor as copper. A 14AWG aluminum or CCA wire has the same resistance as a 16AWG copper wire that's much smaller and more flexible and far easier to conceal.

Question 4

Why does the package not tell us which is positive and which is negative? That hard to put on there?

Accepted Answer

Hello Erik,Typically when connecting speaker wire as a standard the solid or dashed white lines on the individual wire indicate that that particular cable carries the positive (+) polarity. The other cable that is unmarked (without dashes or white lines) is the negative (-) cable. As long as you use the cable with the white line as possitive across your entire setup, your equipment should all be setup properly and perform the way its intended using our GearIT speaker cable.Should you have any questions or concerns please feel free to contact me directly.

Colour	Black
Brand	GEARit
Number of Cable Strands	Multi Strand
Gauge	14.0
No. of wires	2
Manufacturer	GearIT
UPC	894584494368
Product Dimensions	10.16 x 12.7 x 10.16 cm; 1.08 kg
Item model number	GI-SPKR-14AWG-CC-100FT
Manufacturer Part Number	GI-SPKR-14AWG-CC-100FT
Assembly Required	No
Item Weight	1 kg 80 g

GearIT 14-Gauge Speaker Wire (100 Feet/30.48 Meters) Black -

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