Passive Direct Box

The ProDI is a passive direct box designed for use on stage or in home recording studios, with the ability to handle high output instruments without distortion, and a transformer-isolated output to eliminate noise from ground loops.

World Class DI

The heart of the ProDI is a custom wound Radial transformer. It features an exceptionally high 140kΩ input impedance to reduce loading while enabling the ProDI to handle extreme signal levels at all frequencies without distortion. This is further improved upon with an internal MuMETAL® shield to protect against electromagnetic fields that can cause unshielded transformers to distort.

Specifications Audio circuit type: Passive, transformer based Transformer: Eclipse ET-DB2, 12:1 ratio Number of channels: Single channel (mono) Frequency response: 20Hz ~ 18.5KHz (± 0.2dB) Dynamic range: 128dB Total harmonic distortion: 0.01% from 20Hz~20kHz @-10dB Phase Deviation: 1° @ 100Hz; 8° @ 20Hz Input Impedance: 140k Ohms, unbalanced Output Impedance: 150 Ohms, balanced Maximum Input: +18dB @ 20Hz Features Input pad, Ground lift Input Connectors: 1/4" in & thru Output Connectors: XLR-M out General Construction: 14 gauge steel chassis & outer shell Size (L x W x D): 4.25” x 2.75” x 1.75" (108 x 70 x 44mm) Weight: 1.2lb (0.54kg) Shipping size (L x W x D): 6.5" x 4" x 3" (165 x 76 x 102mm) Shipping weight: 1.35lb (0.61kg) Power: Passive, no power required Conditions: For use in dry locations only between 5°C and 40°C Warranty: