How to Connect a Guitar to a Mixer or Audio Interface

By Innov8 Wholesale Ltd | Published: 2026-10-23

Category: How-to Guides

Learn how to connect your electric guitar to a mixer or audio interface using a 6.35mm instrument cable. Step-by-step guide with common mistakes and checkpoints.

Quick Answer

Use a standard 6.35mm TS instrument cable to connect your guitar's output jack to a high-impedance input on your mixer or audio interface. A right-angle connector on the guitar end helps prevent strain and accidental unplugging.

Why the Right Cable Matters

A regular 6.35mm TS (tip-sleeve) cable is designed for unbalanced instrument signals. Using a speaker cable or a TRS cable can cause noise or impedance mismatch. A dedicated instrument cable like the 6.35mm Mono Guitar Instrument Cable with gold-plated connectors ensures low-noise transmission and reliable contact.

Mixer vs. Audio Interface: Input Differences

Most mixers have dedicated instrument inputs on channels 1-2, often labeled 'Hi-Z' or 'Guitar'. Audio interfaces usually have a combo jack that accepts both XLR and 6.35mm TS. Plugging into a line-level input without a Hi-Z switch can result in a thin, weak tone. Always check for a 'Line/Inst' switch and set it to 'Inst' for your guitar.

Step-by-Step Connection Guide

1. Check Your Input Type: Locate the input on your mixer or audio interface. Use a channel with a 'Hi-Z' or 'Instrument' switch. If only line inputs are available, you may need a direct box (DI) to match impedance. Plugging into a line input without Hi-Z will make your guitar sound dull.
2. Connect the Cable to Your Guitar: Insert the 6.35mm TS plug into your guitar's output jack. If your cable has a right-angle connector, use that end here—it keeps the cable close to the body and reduces accidental pull-outs. A right-angle connector at the guitar end is less likely to get knocked loose on stage.
3. Connect to the Mixer or Interface: Plug the straight end of the cable into the instrument input. Push firmly until it clicks or seats fully. Avoid using adapters or extension cables unless necessary, as they can introduce noise. A loose connection causes hum and intermittent signal dropouts.
4. Set the Gain and Volume: Turn the channel gain (or input volume) all the way down before playing. Gradually increase it while strumming until the level hits around -6 dB to -3 dB on the meter. Adjust the master volume to a comfortable listening level. Setting gain too high causes clipping; too low adds noise when you boost it later.
5. Test and Troubleshoot: Play a few chords and listen for clarity. If you hear hum, check that the cable is fully inserted and not running alongside power cables. If the sound is thin, verify the Hi-Z switch is on. Cable routing matters—keep audio cables away from power adapters to avoid interference.

Product Recommendation

6.35mm Mono Guitar Instrument Cable Right Angle to Straight 1/4 Inch TS Audio Cable Gold Plated: This 6.35mm TS cable features a right-angle connector on one end and a straight connector on the other, with gold-plated contacts for corrosion resistance. The right-angle plug reduces cable strain at the guitar jack and helps keep the connection secure during standing performances or recording sessions.
6.35mm Mono Guitar Instrument Cable Right Angle to Straight 1/4 Inch TS Audio Cable Gold Plated