Radial Eng ProD2

Radial Eng ProD2

Radial Eng ProD2

Radial Eng ProD2

Passive DI with two channels, made for high output keyboards

SKU: RAD-R800 1102
MSRP: $240.00
MAP: $199.99
  • Stereo direct box designed for keyboards
  • Smooth, warm sound rounds out digital edge
  • Able to handle huge transients without choking
  • May be rack mounted for touring rigs

The Radial ProD2 is a compact stereo direct box developed specifically to address the needs and challenges of interfacing a stereo keyboard to a professional audio system. This passive DI features two independent channels with separate inputs and thru-puts for the artist's stage amp and two fully isolated outputs for the PA system.

At the heart of the design are two high performance Eclipse ET-DB2 transformers. These deliver 20Hz to 20kHz performance with less than 1.5dB deviation above 18kHz and are able to withstand tremendous signal levels without distortion. Unlike active circuits that overload when the signal exceeds the rail voltage, transformers saturate. This creates a pleasing effect that naturally rounds out the tone, acting like a subtle limiter which is particularly advantageous when interfacing the ProD2 with digital pianos, samplers and drum machines that can produce excessive dynamics. Transformers are particularly adept at eliminating hum and buzz caused by ground loops.

As with all Radial products, the ProD2 is built tough to handle the rigors of professional touring. A 14-gauge steel ultra rigid i-beam skeleton frame eliminates opportunity from outside stress to flex the sensitive PC board and cause premature solder joint failure. The innovative book-end design creates a protective zone around the connectors and switches further increasing lifespan. And a full bottom no-slip pad adds mechanical isolation and electrical insulation to further reduce opportunity for noise.

The Radial ProD2's warm sound, legendary build quality and compact design have made it the most popular stereo direct box made today.

ProD2™ Specifications

The ProD2 is a high-quality ultra-compact stereo passive direct box that features custom-made Radial transformers. Essentially two ProDIs in one compact enclosure the ProD2 is a great choice for stereo keyboards, DJ equipment and consumer hi-fi systems. Its high-performance transformer has an exceptionally linear frequency response from 20Hz to 18kHz and is able to handle high signal levels without saturation making it ideal for electronic instruments. The ProD2 is housed in an extremely rugged two piece 14 gauge steel enclosure with a book-end designed outer shell that prevents damage to the switches, features a -15dB PAD for high output sources and ground lift switch to troubleshoot noise from ground loops.


Radial ProD2 Block Diagram
Specifications   RADIAL ProDI
Audio circuit type:  Passive, transformer based
Number of channels: Single channel (mono)
Frequency response:  20Hz ~ 18.5KHz (± 0.2dB)  
Dynamic range:  128dB 
Maximum input:  +18dB @ 20Hz 
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 
   
Features    
Transformer: Eclipse ET-DB2, 12:1 ratio
Shield: Faraday, MuMETAL® can
Input pad:  -15dB  
180° polarity reverse:  Inverts absolute phase
Ground lift:  Disconnects pin-1 at XLR output 
XLR configuration:  AES standard (pin-2 hot) 
Connectors: 1/4" in & thru, XLR-M out
   
General    
Construction:  14 gauge steel chassis & outer shell
Finish: Durable powder coat
Size:  (W x H x D) 70 x 108 x 44mm (2.75” x 4.25” x 1.75")
Weight:  .54kg (1.2lbs) 
Shipping size: W x H x D: 102 x 76 x 165mm (4.00" x  3.00"  x 6.50")
Shipping weight: 0.61 kg (1.35 lbs)
Power:  Passive, no power required 
Conditions: For use in dry locations only between 5°C and 40°C
Warranty:  Radial 3-year, transferable
Specifications are subject to change without notice.
Radial ProD2 Frequency Response Graph
Radial ProD2 Phase Response Graph
Radial ProD2 FFT Graph
Radial ProD2 THD+N vs. Frequency
Click to view larger graph
 

re