Detail 01
Ultra practice mute (vs. orchestral mute)
Heavier mass, bigger volume cut. Orchestral mutes soften tone slightly; this is built to kill volume.
Product detailSKU #1274115058569
GlaeselGL-3838 Bass Ultra Practice Mute
Independent shopping perspective
The Korena take
A rubber practice mute for upright bass. Buy it if you need to cut volume for apartment or late-night practice on a double bass.
Strong match
Who this is for
- Apartment or dorm practice where neighbors hear everything
- Late-night bowing sessions in a shared house
- Students who need daily practice hours in thin-walled housing
Consider the trade-offs
When to look elsewhere
- Players wanting a tone-shaping mute for performance
- Electric bass guitar owners — this fits upright bass bridges
- Anyone needing near-silent practice; volume drops but sound remains
What matters in use
The specifications, translated
Catalog numbers tell only part of the story. These are the details most likely to change how this product feels, sounds, or fits into a setup.
Detail 02
Fits over the bridge
Weight on the bridge damps string vibration before it reaches the top, so the whole body moves less.
Detail 03
Rubber construction
Grips the bridge without scratching, and absorbs vibration rather than reflecting it back.
Detail 04
Bass-scale sizing
Cut for full-size upright bass bridge thickness. Cello and smaller fractional bridges will not seat correctly.
Detail 05
$18.99
Cheap enough to leave permanently in the case. No reason to share one between players.
Final check
Know before you order
- 01Check your bridge thickness — fractional-size basses may not hold it securely
- 02Response and bow feel change under the mute; do not learn dynamics with it on
- 03Muted practice masks intonation cues from the instrument's resonance
Product questions
Before you decide
Straight answers to the questions shoppers most often ask about this product.
01How much quieter does it actually make the bass?
A practice mute of this type cuts substantially more volume than an orchestral mute. It is not silent — expect a soft, damped tone still audible in the next room.
02Will this work on my electric bass?
No. It seats on an upright bass bridge. Electric bass bridges are a completely different shape and size.
03Can I leave it on all the time?
It will not damage the bass, but you lose the instrument's real response. Remove it for lessons, ensemble work, and any performance.
04Does it fit a 3/4 bass?
3/4 is the standard full-size upright and the common fit. Smaller fractional sizes have thinner bridges and may not grip well.
