The "classic" DI box transformer with a 10:1 ratio. Electrostatic and mu-metal shielding, PCB mount. Technical specifications: Input: 20,000 ohms Output : 200 ohms Frequency range: 30 Hz - 20 kHz, +/- 1 dB Level: + 10 dB into 20,000 ohms max. Dimensions: (without pins): 30 x 30 x 20 mm