How to find the right Audio & Video Power Cables AI guide
Written by an AI model from its trained knowledge.
What the AI looks for in Audio & Video Power Cables
- IEC connector type
- Match the inlet on the device. A C8 inlet takes a C7 (figure-8) cord, a C6 inlet takes a C5 (cloverleaf) cord, and a C14 inlet takes a C13 (three-prong 'kettle') cord. These connectors are not interchangeable, and the inlet shape is the quickest way to identify the cord you need.
- Polarized vs non-polarized figure-8
- A non-polarized C7 cord fits both inlet styles. A polarized C7 (one squared side) fits only a polarized inlet. This is the most common reason a replacement figure-8 cord won't seat.
- Grounding
- If the device has a three-pin inlet, use a three-prong grounded cord and plug it into a grounded outlet. Do not substitute a two-prong cord or adapter. The ground is a safety path, and on AV gear it also helps prevent hum.
- Safety listing and rating
- Buy cords marked with a recognized safety listing for your region (such as UL or ETL in North America) and a current rating at or above the device's requirement. 18 AWG is typical for C13 cords. Unlisted cords with undersized conductors can overheat.
- Plug standard and length
- Confirm the wall-plug type for your country and choose the shortest length that reaches the outlet without strain. Excess coiled cord adds clutter, and a plug that is too far away tempts people to use daisy-chained extensions.
Brands that matter
- Tripp Lite: Established maker of IEC power cords in many lengths and connector combinations.
- Monoprice: Inexpensive C7, C5 and C13 cords in assorted lengths and colors.
- Cable Matters: Common replacement cords, including right-angle versions for tight spaces behind TVs.
- StarTech: Broad range of IEC cords and splitters for AV racks and office gear.
What to avoid
- 'Audiophile' power cords sold on claims of improved sound or picture
- Cords with no visible safety listing mark
- Ground-defeating cheater plugs on three-prong equipment
- Polarized figure-8 cords when you are unsure what your inlet is (non-polarized fits both)
Questions
Will an upgraded power cable improve my audio or video quality?
For correctly working equipment, no. The device's internal power supply conditions the power, and the cord only needs the right connector, rating and safety listing.
Can I use the cord from my old TV on the new one?
Yes, if the connector shape matches the inlet (for example, figure-8 to figure-8) and the polarized/grounded type is compatible.