Car Speaker Wire, Adapters & Cables | Sonic Electronix
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Searching for a speaker wire? Find quality car speaker wires including 10, 12, 14, 16 Gauge cables online - Buy now!

Car Speaker Wire

Quality speaker wire rises to the occasion and lets you annoy your neighbors for years to come. We have every gauge wire you will ever need in many various lengths.
Get The Right Speaker Wire
Understand what gauge works best for your car speakers.
Read Guide
All Speaker Wire
8 Gauge Speaker Wire
12 Gauge Speaker Wire
14 Gauge Speaker Wire
16 Gauge Speaker Wire
18 Gauge Speaker Wire
9 Conductor Speed Wire
Adapters, Terminals & Connectors
RCA Connectors & Adapters

Top Sellers in Car Speaker Wire

12 Gauge 7 Meter (23 Ft) Speaker Wire (CCA)

• 7 Meters
• 12 Gauge Speaker Wire
• High Strand Count for Maximum Flexibility
• 23 Foot Length

Free Speaker Wire with Enclosure Purchase

$14.99

IN STOCK

20 ft of 8 Gauge True Spec 100% Oxygen-Free Copper (OFC) Speaker Cable/Wire

8-Gauge Speaker Wire Cable • 20 Ft. Spool • Ideal for More Than 100 Watts • Flexible Multi-Strand Construction • Silver-Tinned 100% Virgin Copper

50% Off True Spec EnvyFlex Speaker Wire with Purchase!

$29.99

IN STOCK

  • 4.8
6 reviews

15 ft. of Black/Silver True Spec 12 AWG Speaker Cable/Wire

• FULL spec cable - meets or exceeds AWG requirements
• Pure Crystal-Oxygen Free Copper (PC-OFC)
• 12AWG (3.31mm²) 294 strands
• BC-5W2 Compliant

$22.99

IN STOCK

  • 5.0
3 reviews

2-channel Speaker Wire to RCA Adaptor for High-Level Signal Connection to Amplifiers

2-Channel Speaker Wire to RCA Adaptor for High-Level Signal Connection to Amplifiers • Left and Right Channel Male RCA Plugs to Parallel Speaker Cable • Satin Black Jacket

$12.99

IN STOCK

50 ft. of True Spec 16 Gauge EnvyFlex Speaker Cable/Wire (100% Oxygen-Free Copper)

50 ft. of 16 Gauge EnvyFlex Speaker Wire • Twisted-Pair Technology • Full Spec Wire Is True To Gauge • Flexible and Easy to Install • Silver-Tinned 100% Virgin Copper

$19.99

IN STOCK

Only 1 Left!

  • 5.0
8 reviews

25 ft. 12 Gauge (AWG) Speaker Cable (XCBCSC1225)

25 ft. 12 Gauge Premium Series Speaker Cable • Multi-speaker cable for long runs up to 4 Channels • Ninth conductor can be used for remote turn-on connection • OFC Copper for flexibility and conductivity

VIP Guarantee - FREE 2-Day Shipping,
10% Rewards, Extended Warranty and more!

$39.99

IN STOCK

High Level Speaker Line Wire Input To Female RCA Output Adapter

• Speaker Line High Level Input To Female RCA Output Adapter
• Converts Factory (OEM) High Level Speaker Outputs into RCA Outputs for Use with an Aftermarket Amp

$9.99

IN STOCK

4-Way RCA Audio Interconnect Splitter

• 4-Way RCA Audio Interconnect Splitter
• Designed to split audio output connections to multiple devices

$12.99

IN STOCK

  • 5.0
2 reviews

30 Ft of Full U.S. Spec CEA-2015 Compliant High Strand 16 AWG PCOFC Highest Grade Copper Speaker Wire - Black/Silver

• 16AWG (1.31mm²) 65 strands Speaker Cable
• Frosted PVC outer jacket for maximum flexibility
• Pure Crystal-Oxygen Free Copper (PC-OFC)
• Smooth outer coating for easy installation

$23.99

IN STOCK

  • 4.7
3 reviews

Molded Audio Barrel Connectors - 2 female RCA Jack Ends

Molded Audio Barrel Connectors - 2 Female RCA Jack Ends • Satin Black Jacket • Machined Brass Connector Elements

$5.99

IN STOCK

Only 3 Left!

  • 5.0
2 reviews

18-Gauge 9 Conductor OEM Car Speaker Wire (20 ft.)

• 20 feet of 18-Gauge Color Coded Car Speaker Wire
• 9-Conductor Wire, Ideal for 4-Speaker to Amp Installations
• 8 Speaker Leads + 1 Amp Remote Turn-on Lead
• OEM Color-coded for quick and easy Installation
• High-Strand for Increased Sound Transfer
• Ultra-Flex Outer Jacket for Maximum Flexibility

$30.99

AVAILABLE

Ships at Later Date

25 ft. of True Spec 16 Gauge EnvyFlex Speaker Cable/Wire (100% Oxygen-Free Copper)

• 25 ft. of 16 Gauge EnvyFlex Speaker Wire
• Twisted-Pair Technology
• Full Spec Wire Is True To Gauge
• Flexible and Easy to Install
• Silver-Tinned 100% Virgin Copper

50% Off True Spec EnvyFlex Speaker Wire with Purchase!

$17.99

IN STOCK

  • 5.0
1 review

25ft. 16 Gauge (AWG) Speaker Cable (XCBCS1625)

• 25ft. 16 AWG Premium Series Speaker Cable
• OFC Copper for flexibility and conductivity

VIP Guarantee - FREE 2-Day Shipping,
10% Rewards, Extended Warranty and more!

$19.99

IN STOCK

50 feet of 16 Gauge Car Speaker Wire - perfect for speaker bundles!

• 16 Gauge CCA Speaker Wire
• Color: Silver
• Length: 50 ft.

$19.99

IN STOCK

50 ft. of 14AWG Speaker Wire (Blue)

50 ft. of 14 Gauge Speaker Cable • Low profile parallel design for easy installation • Twisted construction • Zero-grip insulation for smooth installations

$31.99

IN STOCK

Only 3 Left!

RCA Barrel Connector Female Nickel - Package of 10 Pieces

• Female to Female Nickel RCA Adpater
• Package of 10

$4.99

IN STOCK

  • 5.0
1 review

2-Way RCA Audio Interconnect Splitter

• 2-Way RCA Audio Interconnect Splitter
• Designed to split audio output connections to multiple devices

$9.99

IN STOCK

  • 4.3
8 reviews

50 ft. of 16 Gauge Speaker Cable

50 ft. of 16 Gauge Speaker Cable • Low profile parallel design for easy installation • Twisted construction • Zero-grip insulation for smooth installations

$31.99

IN STOCK

  • 5.0
6 reviews

16 Gauge 7 Meter (23 Ft) Speaker Wire (CCA)

• 7 Meters
• 16 Gauge Speaker Wire
• High Strand Count for Maximum Flexibility
• 23 Foot Length

$12.99

IN STOCK

  • 4.7
3 reviews

100 Ft. of 12 Gauge Matte Gray Speaker Wire

100 Ft. of 12 Gauge Matte Gray Speaker Wire • Length: 100ft • Flexible Jacketing • 238 strand count • Easy Installation

$75.99

IN STOCK

Only 2 Left!

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Car Speaker Wire Information

Car Speaker Wire Buying Guide

To complete your sound system and generate sound from the speakers, you will need some speaker wire. Speaker wire is used to make the electrical connection between speakers and amplifiers. Today's speaker wire is constructed of two or more electrical conductors that are individually insulated by plastic such as PVC, PE or Teflon. To determine the performance of speaker wires, there are three properties you need to take into affect which are resistance, capacitance, and inductance. A perfect speaker wire has no resistance, capacitance, or inductance. The shorter and thicker the wire is, the less resistance it will have, which means better performance. A common rule of thumb is that the resistance of the speaker wire should not exceed 5% of the rated impedance of the system. Copper or OFC (Oxygen Free Copper) speaker wire is the most popular and is more or less the universal standard, it has low resistance and is more cost efficient than other materials.

Maximum Wire Lengths for Best Performance
Wire Size2 ohm load4 ohm load6 ohm load8 ohm load
22 AWG3 feet6 feet9 feet12 feet
20 AWG5 feet10 feet15 feet20 feet
18 AWG8 feet16 feet24 feet32 feet
16 AWG12 feet24 feet36 feet48 feet
14 AWG20 feet40 feet60 feet80 feet
12 AWG 30 feet60 feet90 feet120 feet
10 AWG50 feet100 feet150 feet200 feet
Wire Gauge SizeTotal Amplifier RMS Wattage
12 AWG100+ Watts
14 AWG60-100 Watts
16 AWG30-60 Watts
18-20 AWG1-30 Watts