CL2 Rated · In-Wall & Ceiling

In-Wall Speaker Wire CL2

UL-listed CL2 speaker wire for permanent wall and ceiling installs. 2- and 4-conductor builds in 12 and 14 AWG OFC.

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  • ★ Lifetime warranty
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  • ★ ETL listed · UL standards

Overview

Why your in-wall wire needs a CL2 jacket

Any speaker wire you route inside a wall or ceiling must be rated CL2 or higher — that's not a preference, it's the NEC requirement. GEARit's in-wall speaker wire carries the UL-listed CL2 marking printed right on the white jacket so inspectors and homeowners can verify at a glance.

The white color matters too. It blends into drywall and ceiling material, disappears behind white baseboard, and takes paint well if surface routing is unavoidable. Most installers use 14 AWG for typical 5.1 and 7.1 receiver setups — it handles runs up to 100 ft cleanly and is easy to pull through tight bends. Step up to 12 AWG for longer runs or higher-powered amplifiers.

All conductors are 99.9% oxygen-free copper. OFC is the right call for in-wall installs because you're likely never pulling this cable again — the slightly higher upfront cost eliminates the risk of resistance creep or corrosion at the terminations over a 10–20 year install lifetime.

The 4-conductor builds (labeled 12/4 or 14/4) let a single cable run serve two speakers or support bi-amping with compatible speakers and receivers.

Two-step picker

Two questions decide the right speaker wire.

How long is the run and how much power the amp pushes. Use the picker, then choose the conductor that fits the budget and the room.

1 Pick the gauge 2 Pick the conductor
1 Step 1 · Pick the gauge

Thicker wire = lower resistance = cleaner power.

Every foot of speaker wire adds a tiny amount of resistance between the amp and the driver. The longer the run and the higher the wattage, the thicker the conductor needs to be to keep voltage drop under 5%.

  • Short runs (<50 ft): 16 AWG is plenty.
  • Most home theaters: 14 AWG sweet spot.
  • Long / high-power runs: step up to 12 or 10 AWG.
Interactive · gauge picker

Tell us the run. We'll size the wire.

5 ft
5 ft50100150200+ ft
Amplifier power per channel
Recommended
14 AWG OFC OFC speaker wire

Short home-theater run — 14 AWG OFC is the sweet spot for 5.1 / 7.1.

Shop 14 AWG OFC
2 Step 2 · Pick the conductor

OFC vs CCA — the single biggest sound-quality decision.

Copper-clad aluminum looks like copper but is mostly aluminum, with roughly 60% more resistance. Over a 50 ft run pushing real wattage, you can measure (and hear) the difference.

Interactive · conductor picker

What are you wiring up?

Pick the scenario that fits and we'll tell you which conductor wins.

Recommended · OFC
OFC — the home-theater standard.

5.1 / 7.1 receivers and longer runs to surrounds reward pure copper. Lower resistance means cleaner dialogue, tighter bass, and full headroom on dynamic scenes.

Shop OFC speaker wire
SPEC
OFC PICK
Oxygen-Free Copper
CCA PICK BUDGET
Copper-Clad Aluminum
Conductor
99.9% pure copper
Aluminum core, copper skin
Resistance vs OFC
Baseline (lowest)
≈ 60% higher
Best run length
Up to 200+ ft
Under 50 ft
Power handling
Any amp, any speaker
Low to mid power
In-wall code
CL2 / CL3 available
Indoor short runs
Recommended for
Home theater · pro · outdoor
Budget DIY · cars

Top picks

In-Wall Speaker Wire CL2 — top picks.

See all speaker wire →

FAQ

Questions buyers actually ask.

Do I need a permit to run speaker wire inside my walls?
In most US jurisdictions, low-voltage speaker wire does not require a permit, but local codes vary. What is always required is that the cable carries a CL2 or CL3 jacket rating, which this wire does. Check with your local building department if you are unsure about your area.
Can I run this wire through the same wall cavity as electrical wiring?
Yes, CL2-rated speaker wire is listed for installation in the same wall cavity as standard 120V electrical wiring. The CL2 jacket meets the fire resistance requirements that make this legal under the NEC. Keep the cables separated and do not bundle them tightly together.
What is the difference between 2-conductor and 4-conductor in-wall wire?
2-conductor handles one speaker (positive and negative). 4-conductor lets a single cable run serve two speakers, which is useful for rear surrounds where you want both left and right on one pull, or for bi-amping speakers that have separate tweeter and woofer terminals.
How do I terminate in-wall speaker wire at the wall plate?
Strip about half an inch of the outer jacket, then strip about a quarter inch of each conductor. Most wall plates use either banana plug inserts or spring-clip terminals. Twist the strands tightly before inserting, and make sure no bare copper is exposed outside the terminal.
Can I get help choosing the right gauge for my room layout?
Absolutely. Email us at support@gearit.com with your room dimensions and the receiver wattage and we will recommend the right gauge for your specific install.