Radial ProDI

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.

• Compact passive direct box for stage and studio

• Able to handle huge transients without distortion

• Transformer isolation eliminates noisy ground loops

• Plug and play easy to use feature set – on stage or in the studio

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.

FEATURES

1/4" Input
Instrument connection to the ProDI

-15dB Pad
Reduces the input sensitivity for active basses and high output keyboards.

Thru
Instrument thru-put to an amp. Hi-impedance thru will not load-down instrument's tone.

XLR Out
Balanced 600 Ohm mic-level output. feeds mixers or mic preamp.

Ground
Lifts pin-1 at XLR to reduce hum and buzz caused by ground loops.

Powder Coat
Durable finish keeps your ProDI looking great for years.

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
Switches: Input pad, Ground lift
Input Connectors: 1/4" in & thru
Output Connectors: XLR-M out
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: Radial 3-year, transferable