The MODEL 500TDI is a tube direct box for the 500 series format. It uses the same TrueTube™ technology that is 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 possibilites. 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 24dB THD+N 0.10%-25% (@ +2dBV) Frequency Response 8Hz to 28KHz EIN -100dBu Input Impedance ~1.5MΩ Tube Complement 1x 12DW7 (ECC832) Current Draw 150mA

Stated specifications are typical measurements and subject to change without notice. All measurements taken while driving a 40kohm load with a 1khz source.