What gauge does speaker wire need to be?

between 12 to 16 gauge





Speaker wires that are anywhere between 12 to 16 gauge are most commonly used for connecting speakers to an amplifier or an Audio/Video (A/V) receiver. A lower-gauge number indicates a thicker wire, while a higher-gauge number indicates a thinner wire.

How many watts can 16 gauge speaker wire handle?

Simple “everyday” wire size table

Wire Size Recommended For
18 AWG Car and home speakers up to 25 ft with average power levels (50W RMS and below).
16 AWG Longer speaker runs for car & home stereo speakers or short runs under 20 ft for 75-100W. Moderate power subwoofers (under 225W) with short lengths.

What’s better 14 gauge or 18 gauge speaker wire?

Speaker wire is dependent on the length of the run to the speaker and the quality of the sound you want from the speakers. You can spend thousands of dollars on exotic speaker wires for a little definition in the sound. The manual states that up to 20 ft an 18 gauge wire is fine with 16 and 14 gauge for longer runs.

Does size matter for speaker wire?

The size of the speaker does not matter. What matters is the resistance, or impedance, given in ohms. The rule is the total resistance of the wire should be less than 5 percent of the rated impedance of the speaker.

Is 12 AWG speaker wire overkill?





Thick wire (12 or 14 gauge) is recommended for long wire runs, high power applications, and low-impedance speakers (4 or 6 ohms). For relatively short runs (less than 50 feet) to 8 ohm speakers, 16 gauge wire will usually do just fine.

How thick should my speaker wire be?

An ideal wire should have the lowest resistance possible. To get the best energy transfer a thicker wire such as a 12-gauge wire would be preferred over an 18-gauge thinner wire.

Can speaker cable be too thick?

Speaker wires can’t be too thick because thicker wire means lower resistance, more signal flow, and better sound quality. Although not every setup needs a thick wire and the wire thickness depends on the speaker’s impedance and the distance between the sources, you can’t have too much of it.

How far can I run 16-gauge speaker wire?

16-gauge copper wire can run up to 48-feet with 8-ohm speakers. So, if you want a wire size that will suit most circumstances, then a 16-gauge copper wire is probably a good fit. But for speakers with a lower impedance, you might go with 12 or 14 AWG just to be safe.

Does the length of speaker wire affect sound?



Electrical currents travel through speaker wires at the speed of light, so each speaker doesn’t need identical speaker wire lengths. Different lengths won’t create a discernible sound difference. Keeping speaker lengths exactly the same doesn’t improve amplitude, prevent time delays, or improve sound quality.

What happens if speaker wire is too small?

The only problem with using too-thin wire is that if you put enough current through it that it melts, then your amp won’t be too happy. The amplifier will be quite happy if the wires melt and fuse, leaving an open circuit with no load.

Is 10 gauge speaker wire overkill?

To me 10 gauge is extreme overkill (14 AWG would be fine) but if you don’t mind the small extra cost and have the ability to install that heavy a cable, then why not. It certainly can’t hurt as long as you can obtain the connectors to allow hookup to speakers and receiver.

How many watts can 12 gauge speaker handle?



For up to 20 ft of cable length a 10 gauge cable can handle 2000 watt and a 12 gauge speaker wire can handle 1960 watt.

Is 12 or 14 gauge speaker wire better?

The lower the gauge number, the thicker the wire. Thicker wire presents less resistance to current flow. Relative thickness of wire gauges, drawn to scale (not actual size). Thick wire (12 or 14 gauge) is recommended for long wire runs, high power applications, and low-impedance speakers (4 or 6 ohms).

Can I mix 12 gauge and 14 gauge wire?

Anyway, the first subject is a bit touchy because it makes it difficult to perform an inspection when all of the wires coming into the panel are 12 but many of the circuits have 14 in them too. There is nothing against code mixing wire size for these circuits as long as the OCPD matches the smallest wire.

How many watts can a 14 gauge wire handle?

In high voltage circuits (220V-240V) wires can carry more watts. Example: A 14 AWG copper wire can carry 3,520 watts at 220V. At a much smaller 12V voltage (batteries, for example), the same 14 AWG wire can handle only 192 watts of electrical power.

How much watts can 10 gauge speaker wire handle?



For up to 20 ft of cable length a 10 gauge cable can handle 2000 watt and a 12 gauge speaker wire can handle 1960 watt.

How many amp can a 14-gauge wire carry?

The NEC limit for 14-gauge wire is 20 amps, which means you should never use 14-gauge wire in your 240-volt circuits, only your 120-volt circuits, or the amperage will exceed the wire’s capacity.

What size speaker wire should I use for car audio?

The signal and power coming out of your amplifier must not be impeded on their way to your speakers and subs. When you replace or run new speaker wiring, we recommend using: 18-, 16-, or 14-gauge wires for speakers. 16-, 14-, or 12-gauge wires for subwoofers.

What gauge wire is best for subwoofers?

12- to 16-gauge



Comments (46) Nick, For wiring subwoofers, we recommend using wires of 12- to 16-gauge in size.

How do I choose speaker wire for my car?

Generally speaking, if the distance from the speaker to an amplifier is less than 80 feet, then 16-gauge wire will suffice. If the distance is between feet, you should use 14-gauge speaker wire. If the distance is greater than 200 feet you should purchase 10- or 12-gauge cables.