LaChapell Audio 500TDI Direct Box

500 series tube direct box
LaChapell Audio 500TDI Direct Box
LaChapell Audio 500TDI Direct Box LaChapell Audio 500TDI Direct Box


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The LaChapell Audio 500TDI Direct Box is a tube direct box for the 500 series format. It uses the same TrueTube technology found in the popular 583S Mk2. TrueTube provides proper operating voltage to the 12DW7 tube so that you get rich tube harmonics and incredible detail. Two knobs allow the user to drive the tube input separate from the output for a wide array of tonal possibilities. The top input is a high impedance input while the bottom input can be used as a through or a lower impedance input for more sound options.


  • Internal gain: 24 dB
  • THD+N: 0.10% - 25% (@ +2 dBV)
  • Frequenc response: 8 Hz - 28 kHz
  • EIN: -100 dBu
  • Input impedance: ~1.5MΩ
  • Tube complement: 1x 12DW7 (ECC832)
  • Current draw: 150 mA

Additional Information

Condition New

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