Item #1005781 Model #TD-100

Summit Audio TD-100 Instrument Preamp and Tube Direct Box Standard


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Combines Summit's stellar tube tone with discrete circuitry.

The Summit Audio TD-100 is an instrument preamp and tube DI that brings true high-end audio quality to home studios. An excellent-sounding input stage for digital recording, adding personality and quality to the signal before it hits the converters. 12AX7A/ECC83 tube provides milky warmth. Transistor output section uses ±24V rails to boost the tube sound with no added coloration. Tube loading and output gain controls let you tailor the tone to your taste. Polarity reverse, ground lift, plus signal and peak LEDs. Also works great as a tube headphone amp.


  • 12AX7A/ECC83 tube
  • Transistor output section
  • Tube loading and output gain controls
  • Polarity reverse
  • Ground lift
  • Signal and peak LEDs
  • Works great as a tube headphone amp