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Quick Answer
You may need a headphone adapter for a guitar amp if your headphones use a small 3.5 mm plug and the amp has a larger 1/4-inch headphone jack. Many practice amps use one of those two sizes, so check before buying.
- 3.5 mm to 1/4-inch headphone adapter
- 1/4-inch to 3.5 mm headphone adapter
- Closed-back headphones for guitar amp
This is a small purchase, but it solves a common quiet-practice problem: the headphones are fine, the plug is just the wrong size.
Related: Can You Use Headphones With an Electric Guitar? and Quiet Electric Guitar Practice Setup Canada.
Need quiet electric guitar practice?
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Open guitar headphone amps on Amazon.ca · Open headphone-output practice amps
See the apartment practice answer · Read the quiet practice guide