Yamaha ST9 Personal Studio

Silent Brass System

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ST9 Personal Studio
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This item is no longer available to order - but we have something even better...
STX-2 Personal Studio for Silent Brass Mutes

STX-2 Personal Studio for Silent Brass Mutes



The innovative Silent Brass Systems allow you to practice in your own private musical world. The secret of system, is that you can listen to yourself playing at a normal volume - though others hear only a whisper.

The newly improved ST9 Personal Studio is has been reduced to a size and weight approximately 1/4th that of the previous model. It is a tiny amplifier, small enough to fit into a shirt pocket, which offers a choice of 'clean' or echo enhanced sound. It lets you hear your own playing at the volume you are accustomed to, to prevent any over-blowing. An Aux In is a direct line-in for playing along with CDs or other recordings. The ST9 Personal Studio may also be purchased separately for players who already own a Pickup Mute.


  • Owning the Silent Brass is almost like having your own private practice studio-and one that fits in a pocket!
  • You can practice anytime, even when the rest of your family are sleeping!
  • It's easy to keep up your chops when travelling. You can practice in your hotel room!
  • You no longer need worry what others will think of your playing - play with total privacy!


Height25 mm
WeightWeight65g (without batteries)
Storage and Connectivity
ConnectivityAUX INall mini jack type
 INPUTall mini jack type
Power Supply
Power Supply6F22/6LR61 9-Volt battery   
Battery Lifeabout 12 hours   
Product IDYAM-ST9
Limited Shipping Please note that we deliver within the United Kingdom only

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