Pitbull PSM 10-S Small String Muter — Guitar and 4-String Bass
The Pitbull Small String Muter (commonly listed as PSM 10-S) is a removable accessory that rests against the strings to reduce unwanted open-string ringing and sympathetic vibration. It is useful for two-hand tapping, recording individual notes, and passages where you do not want open strings to sound between fretted notes. It is not an electronic noise gate, pickup or volume control.
Which Instruments Does the Small Version Fit?
| Barbad model | PSM 10 Small / supplier designation PSM 10-S |
|---|---|
| Designed for | Standard electric, acoustic and classical guitars; many 4-string basses |
| Larger instruments | 7- and 8-string guitars and 5- or 6-string basses generally need the separate Large (PSM 10-L) |
| Operation | Adjustable, removable string-damping strap; no batteries |
| Package | One small string muter, not a complete set of strings |
Positioning and Playing
Move the muter onto the strings near the nut when you want to reduce unwanted ringing during a phrase. Move it back or loosen it when normal open-string resonance is needed. The effect depends on how firmly it touches the strings: too much pressure can damp intended notes. Test it at your own instrument’s nut and neck width instead of assuming that every custom headstock or bass will fit identically.
What It Cannot Replace
A string muter does not correct high frets, noisy electronics, bad grounding, feedback from an amplifier or poor instrument setup. It is a mechanical aid for string vibration. Keep the contact surfaces clean and verify fit on delicate finishes before use. The maker’s Small/ Large options are different accessories; the Large option is not included here.
Model source: Pitbull PSM 10-S distributor model and size compatibility.









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