Mouthpiece Tenor & Bass Trombone Mega Tone Serie K341 5GS Vincent Bach Mouthpieces

The IRF2: compact, but just as powerful as the original. With an Instrument Reflexion Filter, you can get acoustic treatment

SPECIFICATIONS Frequency Response: 20Hz-20 KHz Sensitivity: -34dB Polar Pattern: Cardioid Impedance: 200 Ohm Equivalent Noise Level: 16 dB Max SPL