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My son recently started his very first formal piano lesson (thru the kindness of good friend, Nathan G.) with probably one of the best piano teachers ever, Ms. Suaco. He was totally over the moon after the first lesson. Of course I knew he would enjoy it. He’s been tinkering with our old keylight keyboard at home which isn’t quite the same as your good old fashioned piano. Not a Steinway,  but for now, it will do. I could probably connect it to my computer and amp it up with something like this:

2BA-221 Tube Mic and Line Module

Summit Audio 2BA-221 Tube Mic and Line Module

Check out the specs:

The variable-impedence Summit 2BA-221 Tube Mic and Line Module is a microphone preamp that has individual controls to mix mic with Hi-Z or line inputs for variable vacuum tube output. You can mix them together through 12AX7A/ECC83 tube output or separately through individual solid state outputs. A stackable input design allows multiple 2BA-221s to be linked for a modular mixing device with individual outs, inserts per channel, and a final vacuum tube gain stage. Its swept high-pass filter, multiple simultaneous tube and solid state outputs, insert jack, and internal power supply makes the 2BA-221 a powerful tracking and mixing tool.


  • Variable mic input impedance from 100 ohms to 10K ohms
  • Variable high-pass filter
  • Hi-Z instrument, line, and mic level inputs
  • Hi-Z input and mic input available simultaneously with separate gain controls
  • Separate solid state and tube outputs
  • Insert jack
  • Stackable with more 2BA-221s
  • 1/2 rack size
  • 3 year warranty
  • XLR and 1/4″ I/O
  • 3 variable, independent gain stages
Cool, huh?
Today Chopsticks, tomorrow Czerny! 🙂