Gear, instruments and tools · updated 2026-08-16
TS, TRS AND XLR
TS is unbalanced instrument cable, TRS is balanced (or stereo), XLR is balanced with a locking connector and carries phantom power. Balanced runs reject hum over distance.

Photo: Akai MPC Live (2017) (opens in a new tab) by Joan Recordà (opens in a new tab), via Wikimedia Commons — CC BY-SA 4.0 (opens in a new tab)
Key takeaways
- TS is unbalanced instrument cable, TRS is balanced (or stereo), XLR is balanced with a locking connector and carries phantom power.
- Balanced runs reject hum over distance.
- TRS carries either a balanced mono signal or unbalanced stereo, depending on the device.
- Use balanced TRS or XLR for monitor cables and any run over about three metres; keep TS for guitar-to-pedal distances.
- Watch out: assuming a TRS cable is always balanced.
Quick checklist
- Can you define ts, trs and xlr in one sentence without looking?
- Can you point at ts, trs and xlr in a real session, mix or contract?
- Have you tried the practical move above at least once?
- Would you catch the common mistake before it costs you a take?
- Have you opened one of the primary sources below rather than a forum thread?
TS, TRS AND XLR IN DEPTH
TS carries one unbalanced signal and picks up hum over distance — fine for a short instrument cable. TRS carries either a balanced mono signal or unbalanced stereo, depending on the device. XLR is balanced, locks in place and carries phantom power. Balanced connections send the signal twice, inverted, so noise picked up along the run cancels at the far end.
How it works in practice
Use balanced TRS or XLR for monitor cables and any run over about three metres; keep TS for guitar-to-pedal distances.
The mistake people make
Assuming a TRS cable is always balanced. Headphone and insert cables use the same connector for entirely different wiring.
WHERE TS, TRS AND XLR SITS
TS, TRS and XLR belongs to gear, instruments and tools in the Sampled music glossary. The boxes, controllers and sample formats a producer is expected to know by name — from the MPC to a one-shot.
TEST YOURSELF
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3 quick questions on ts, trs and xlr. Answers are marked instantly — nothing is sent anywhere.
1. Which statement best describes ts, trs and xlr?
2. What is the mistake people most often make with ts, trs and xlr?
3. In practice, which of these applies to ts, trs and xlr?
Ready for the full thing? Take the 25-question terminology test and get a certificate with your name and score.
SOURCES AND CITATIONS
Free, primary references for ts, trs and xlr — standards bodies, manufacturers, government offices and university course material. Each one lists the line of this entry it backs up.
- AES — standards and publications (opens in a new tab)
Professional standards body · Audio Engineering Society
“TS is unbalanced instrument cable, TRS is balanced (or stereo), XLR is balanced with a locking connector and carries phantom power.”— the claim this source supports
Why it counts: AES writes and reviews the engineering standards and peer-reviewed papers this terminology comes from.
- Focusrite — connection guides (opens in a new tab)
Primary reference · support.focusrite.com
“Balanced runs reject hum over distance.”— the claim this source supports
Why it counts: Published by the organisation responsible for the thing being defined, so it is a first-hand source rather than a summary of one.
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