Pro Direct Boxes
PDI-1 PRO DI BOX (AB-11) & PDI-2 PRO DI BOX DUO (AB-12)
Pro-DI
Model Options
Pro-DI
Single Channel unit
Pro-DI Duo
Dual Channel unit in unique DoubleHeader format
The unique Audibox 
DoubleHeader format puts one channel on the front of the unit, and a second channel on the rear, giving two channels in the space of one! An ultra useful and convenient option.
(Click on image to enlarge)
Requires Phantom or DC power
Pro-DI
A flexible, compact Active Direct box, with normal High Impedance input as well as a separate speaker level input for connection to an aux speaker output on the back of instrument amplifiers.
Heavy duty all-steel chassis finished in attractive matt textured polyurethane, with hardwearing epoxy screen printing and slip resistant rubber pad.
Features include –20 dB Pad and Audio Ground Lift switches, plus Phantom or 12V DC power options.
Security features include Kensington®-type computer lock slot and optional bracket kit for under-table mounting.
Precision engineered
Most of the Audibox range share a common footprint and manufacturing platform. Offset lid screws enable close side-by-side mounting of multiple units.
Click on image at Right to see larger version
Available in Single Channel or Double Header format
Technical Specifications
Max Input Level
+12 dB Phantom powered, +8 dB using 12 VDC Power Supply.
Input Impedance 1 Meg Ohm
Max Output Level (nominal)
+12 dB 10K Ohm load using Phantom power
+11 dB 600 Ohm load using 12 VDC Power Supply
Output Impedance 680 Ohms Balanced
Output Signal to Noise -100 dB unweighted, -104 dB A weighted
Dynamic Range 112 dB 10K Ohm load using 12 VDC Power Supply
Distortion @100 Hz 0.0025%, @1KHz 0.0026%, @10KHz 0.0033%
Frequency Response 20Hz to 20KHz, ± 0.2 dB
Gain through Unit 6dB (Normal input, Pad switch out)
Power Requirements 48V Phantom power on XLR pins 2 and 3; 12-15V DC from external supply
Pad Switch -20 dB attenuation
Speaker Input
-40 dB attenuation, equivalent to 100:1 decrease in input level.
-60 dB attenuation available when Pad switch also enabled
Input Connectors Insulated jacks
Output Connector
3 pin XLR. Wired Pin 1 Ground, Pin 2 + Hot, Pin 3 - Cold. Audio Ground (Pin 1) lift switch fitted
Construction
All-steel powdercoated chassis, fibreglass PCB
PDI-1 PRO DI BOX (AB-11) & PDI-2 PRO DI BOX DUO (AB-12)
Pro-DI
Model Options
Pro-DI
Single Channel unit
Pro-DI Duo
Dual Channel unit in unique DoubleHeader format
The unique Audibox DoubleHeader format puts one channel on the front of the unit, and a second channel on the rear, giving two channels in the space of one! An ultra useful and convenient option.
(Click on image to enlarge)
Requires Phantom or DC power
Pro-DI
A flexible, compact Active Direct box, with normal High Impedance input as well as a separate speaker level input for connection to an aux speaker output on the back of instrument amplifiers.
Heavy duty all-steel chassis finished in attractive matt textured polyurethane, with hardwearing epoxy screen printing and slip resistant rubber pad.
Features include –20 dB Pad and Audio Ground Lift switches, plus Phantom or 12V DC power options.
Security features include Kensington®-type computer lock slot and optional bracket kit for under-table mounting.
Precision engineered
Most of the Audibox range share a common footprint and manufacturing platform. Offset lid screws enable close side-by-side mounting of multiple units.
Click on image at Right to see larger version
-
Available in Single Channel or Double Header format
Technical Specifications
Max Input Level
+12 dB Phantom powered, +8 dB using 12 VDC Power Supply.
Input Impedance 1 Meg Ohm
Max Output Level (nominal)
+12 dB 10K Ohm load using Phantom power
+11 dB 600 Ohm load using 12 VDC Power Supply
Output Impedance 680 Ohms Balanced
Output Signal to Noise -100 dB unweighted, -104 dB A weighted
Dynamic Range 112 dB 10K Ohm load using 12 VDC Power Supply
Distortion @100 Hz 0.0025%, @1KHz 0.0026%, @10KHz 0.0033%
Frequency Response 20Hz to 20KHz, ± 0.2 dB
Gain through Unit 6dB (Normal input, Pad switch out)
Power Requirements 48V Phantom power on XLR pins 2 and 3; 12-15V DC from external supply
Pad Switch -20 dB attenuation
Speaker Input
-40 dB attenuation, equivalent to 100:1 decrease in input level.
-60 dB attenuation available when Pad switch also enabled
Input Connectors Insulated jacks
Output Connector
3 pin XLR. Wired Pin 1 Ground, Pin 2 + Hot, Pin 3 - Cold. Audio Ground (Pin 1) lift switch fitted
Construction
All-steel powdercoated chassis, fibreglass PCB