For a deep, melodious cup sound, the adjustable cup mute is the ideal choice. It features a neoprene rubber liner that eliminates vibrations and holds the mute firmly in place. To adjust the fit, simply move the mute up to the desired length for a tight seal and smooth cup sound, filing the corks if necessary for an even tighter fit.
Jo Ral B7 Bass Trombone Cup Mute Made of the highest-quality hand-spun aluminum, Jo-Ral mutes are designed and tested to perform evenly in all registers. Jo-Ral mutes also feature neoprene-enhanced composite cork pads that provide extra durability. The result is a more pliable cork that grips well and doesn’t dry out, become brittle, or break off, so it lasts longer while easily accommodating fine adjustments for a perfect fit.