Personal Studio ST9

Personal studio preamp for all Silent Brass mutes.
9-Volt battery not included

Model: STX2

Size & weight:

Width: 75 mm
Height: 25 mm
Depth: 70 mm
Weight: 65 g. (without batteries)



  • AUX in (all mini jack types)
  • Phone out
  • AUX out (all mini jack types)


Power supply:

  •  6F22/6LR61 9-Volt battery (NOT INCLUDED)
  • Battery Life: About 12 hours 
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